Changelog

Check https://github.com/conan-io/conan for issues and more details about development, contributors, etc.

Important

Conan 1.11 shouldn’t break any existing 1.0 recipe or command line invocation. If it does, please submit a report on GitHub. Read more about the Conan stability commitment.

1.11.2 (8-Jan-2018)

• Bugfix: The migrated data in the server from a version previous to Conan 1.10.0 was not migrated creating the needed indexes. This fixes the migration and creates the index on the fly for fixing broken migrations. Also the server doesn’t try to migrate while running but warns the user to run conan server –migrate after doing a backup of the data, avoiding issues when running the production servers like gunicorn where the process doesn’t accept input from the user. #4229

1.11.1 (20-Dec-2018)

• BugFix: Fix conan config install requester for zip file download #4172

1.11.0 (19-Dec-2018)

• Feature: Store verify_ssl argument in conan config install #4158 . Docs here

• Feature: Tox launcher to run the test suite. #4151

• Feature: Allow --graph=file.html html output using local vis.min.js and vis.min.css resources if they are found in the local cache (can be deployed via conan config install) #4133 . Docs here

• Feature: Improve client DEBUG traces with better and more complete messages. #4128

• Feature: Server prints the configuration used at startup to help debugging issues. #4128

• Feature: Allow hooks to be stored in folders #4106 . Docs here

• Feature: Remove files containing Macos meta-data (files beginning by ._) #4103 . Docs here

• Feature: Allow arguments in git clone for conan config install #4083 . Docs here

• Feature: Display the version-ranges resolutions in a cleaner way. #4065

• Feature: allow conan export . version@user/channel and conan create . version@user/channel #4062 . Docs here

• Fix: cmake_find_package generator not forwarding all dependency properties #4125

• Fix: Recent updates in python break ConfigParser with % in values, like in path names containing % (jenkins) #4122

• Fix: The property file that the MSBuild() is now generated in the build_folder instead of a temporary folder to allow more reproducible builds. #4113 . Docs here

• Fix: Fixed the check of the return code from Artifactory when using the checksum deploy feature. #4100

• Fix: Evaluate always SCM attribute before exporting the recipe #4088 . Docs here

• Fix: Reordered Python imports #4064

• Bugfix: In ftp_download function there is extra call to ftp.login() with empty args. This causes ftp lib to login again with empty credentials and throwing exception because authentication is required by server. #4092

• Bugfix: Take into account os_build and arch_build for search queries. #4061

1.10.2 (17-Dec-2018)

• Bugfix: Fixed bad URL schema in ApiV2 that could cause URLs collisions #4138

1.10.1 (11-Dec-2018)

• Fix: Handle some corner cases of python_requires #4099

• Bugfix: Add v1_only argument in Conan server class #4096

• Bugfix: Handle invalid use of python_requires when imported like conans.python_requires #4090

1.10.0 (4-Dec-2018)

• Feature: Add include_prerelease and loose option to version range expression #3898

• Feature: Merged “revisions” feature code in develop branch, still disabled by default until it gets stabilized. #3055

• Feature: CMake global variable to disable Conan output CONAN_CMAKE_SILENT_OUTPUT #4042

• Feature: Added new make generator. #4003

• Feature: Deploy a conan snapshot package to [test.pypi.org](https://test.pypi.org/project/conan/) for every develop commit. #4000

• Fix: Using the scm feature when Conan is not able to read the gitignored files (local optimization mechanism) print a warning to improve the debug information but not crash. #4045

• Fix: The tools.get tool (download + unzip) now supports all the arguments of the download tool. e.g: verify, retry, retry_wait etc. #4041

• Fix: Improve make generator test #4018

• Fix: Add space and dot in conan new --help #3999

• Fix: Resolve aliased packages in python_requires #3957

• Bugfix: Better checks of package reference pkg/version@user/channel, avoids bugs for conanfile in 4 nested folders and conan install path/to/the/file #4044

• Bugfix: Running Windows subsystem scripts crashed when the PATH environment variable passed as a list. #4039

• Bugfix: Fix removal of conanfile.py with conan source command and the removal of source folder in the local cache when something fails #4033

• Bugfix: A conan install with a reference failed when running in the operating system root folder because python tried to create the directory even when nothing is going to be written. #4012

• Bugfix: Fix qbs generator mixing sharedlinkflags and exelinkflags #3980

• Bugfix: compiler_args generated “mytool.lib.lib” for Visual Studio libraries that were defined with the .lib extension in the self.cpp_info.libs field of package_info(). #3976

1.9.2 (20-Nov-2018)

• Bugfix: SVN API changes are relevant since version 1.9 #3954

• Bugfix: Fixed bug in vcvars_dict tool when using filter_known_paths argument. #3941

1.9.1 (08-Nov-2018)

• Fix: Fix regression introduced in 1.7, setting amd64_x86 when no arch_build is defined. #3918

• Fix: Do not look for binaries in other remotes than the recipe, if it is defined. #3890

• Bugfix: sudo --askpass breaks CentOS 6 package installation. The sudo version on CentOS 6 is 1.8.6. The option of askpass for sudo version 1.8.7 or older is sudo -A. #3885

1.9.0 (30-October-2018)

• Feature: Support for srcdirs in package_info(). Packages can package sources, and specify their location, which will be propagated to consumers. Includes support for CMake generator. #3857

• Feature: Added remote_name and remote_url to upload json output. #3850

• Feature: Add environment variable CONAN_USE_ALWAYS_SHORT_PATHS to let the consumer override short_paths behavior from recipes #3846

• Feature: Added --json output to conan export_pkg command #3809

• Feature: Add conan remote clean subcommand #3767

• Feature: New premake generator incorporated to the Conan code base from the external generator at https://github.com/memsharded/conan-premake. #3751

• Feature: New conan remote list_pref/add_pref/remove_pref/update_pref commands added to manage the new Registry entries for binary packages. #3726

• Feature: Add cpp_info data to json output of install and create commands at package level. #3717

• Feature: Now the default templates of the conan new command use the docker images from the conanio organization: https://hub.docker.com/u/conanio #3710

• Feature: Added topics attribute to the ConanFile to specify topics (a.k.a tags, a.k.a keywords) to the recipe. #3702

• Feature: Internal refactor to the remote registry to manage a json file. Also improved internal interface. #3676

• Feature: Implement reuse of sources (exports_sources) in recipes used as python_requires(). #3661

• Feature: Added support for Clang >=8 and the new versioning schema, where only the major and the patch is used. #3643

• Fix: Renamed Plugins as Hooks #3867

• Fix: Adds GCC 8.2 to default settings.yml #3865

• Fix: Hidden confusing messages download conaninfo.txt when requesting the server to check package manifests. #3861

• Fix: The MSBuild() build helper doesn’t adjust the compiler flags for the build_type anymore because they are adjusted by the project itself. #3860

• Fix: Add neon as linux distro for SystemPackageTools #3845

• Fix: remove error that was raised for custom compiler & compiler version, while checking cppstd setting. #3844

• Fix: do not allow wildcards in command conan download <ref-without-wildcards> #3843

• Fix: do not populate arch nor arch_build in autodetected profile if platform.machine returns an empty string. #3841

• Fix: The registry won’t remove a reference to a remote removed recipe or package. #3838

• Fix: Internal improvements of the ConanFile loader #3837

• Fix: environment variables are passed verbatim to generators. #3836

• Fix: Implement dirty checks in the cache build folder, so failed builds are not packaged when there is a build_id() method. #3834

• Fix: vcvars is also called in the CMake() build helper when clang compiler is used, not only with Visual Studio`compiler. `#3832

• Fix: Ignore empty line when parsing output inside SVN::excluded_files function. #3830

• Fix: Bump version of tqdm requirement to >=4.28.0 #3823

• Fix: Handling corrupted lock files in cache #3816

• Fix: Implement download concurrency checks, to allow simultaneous download of the same package (as header-only) while installing different configurations that depend on that package. #3806

• Fix: vcvars is also called in the CMake() build helper when using Ninja or NMake generators. #3803

• Fix: Fixed link_flags management in MSBuild build helper #3791

• Fix: Allow providing --profile argument (and settings, options, env, too) to conan export-pkg, so it is able to correctly compute the binary package_id in case the information captured in the installed conaninfo.txt in previous conan install does not contain all information to reconstruct the graph. #3768

• Fix: Upgrade dependency of tqdm to >=4.27: solves issue with weakref assertion. #3763

• Fix: Use XML output to retrieve information from SVN command line if its client version is less than 1.8 (command --show-item is not available). #3757

• Fix: SVN v1.7 does not have -r argument in svn status, so functionality SVN::is_pristine won’t be available. #3757

• Fix: Add --askpass argument to sudo if it is not an interactive terminal #3727

• Fix: The remote used to download a binary package is now stored, so any update for the specific binary will come from the right remote. #3726

• Fix: Use XML output from SVN command line interface to compute if the repository is pristine. #3653

• Fix: Updated templates of the conan new command with the latest conan package tools changes. #3651

• Fix: Improve error messages if conanfile was not found #3554

• BugFix: Fix conflicting multiple local imports for python_requires #3876

• Bugfix: do not ask for the username if it is already given when login into a remote. #3839

• Bugfix: yum update needs user’s confirmation, which breaks system update in CentOS non-interactive terminal. #3747

1.8.4 (19-October-2018)

• Feature: Increase debugging information when an error uploading a recipe with different timestamp occurs. #3801

• Fix: Changed tqdm dependency to a temporarily forked removing the “man” directory write permissions issue installing the pip package. #3802

• Fix: Removed ndg-httpsclient and pyasn dependencies from OSX requirements file because they shouldn’t be necessary. #3802

1.8.3 (17-October-2018)

• Feature: New attributes default_user and default_channel that can be declared in a conanfile to specify the user and channel for conan local methods when neither CONAN_USERNAME and CONAN_CHANNEL environment variables exist. #3758

• Bugfix: AST parsing of conanfile.py with shebang and encoding header lines was failing in python 2. This fix also allows non-ascii chars in conanfile.py if proper encoding is declared. #3750

1.8.2 (10-October-2018)

• Fix: Fix misleading warning message in tools.collect_libs() #3718

• BugFix: Fixed wrong naming of --sbindir and --libexecdir in AutoTools build helper. #3715

1.8.1 (10-October-2018)

• Fix: Remove warnings related to python_requires(), both in linter and due to Python2. #3706

• Fix: Use share folder for DATAROOTDIR in CMake and AutoTools build helpers. #3705

• Fix: Disabled apiv2 until the new protocol becomes stable. #3703

1.8.0 (9-October-2018)

• Feature: Allow conan config install to install configuration from a folder and not only from compressed files. #3680

• Feature: The environment variable CONAN_DEFAULT_PROFILE_PATH allows the user to define the path (existing) to the default profile that will be used by Conan. #3675

• Feature: New conan inspect command that provides individual attributes of a recipe, like name, version, or options. Work with -r=remote repos too, and is able to produce --json output. #3634

• Feature: Validate parameter for ConanFileReference objects to avoid unnecessary checks #3623

• Feature: The environment variable CONAN_DEFAULT_PROFILE_PATH allows the user to define the path (absolute and existing) to the default profile that will be used by Conan. #3615

• Feature: Warning message printed if Conan cannot deduce an architecture of a GNU triplet. #3603

• Feature: The AutotoolsBuildEnvironment and CMake build helpers now adjust default for the GNU standard installation directories: bindir, sbin, libexec, includedir, oldincludedir, datarootdir #3599

• Feature: Added use_default_install_dirs in AutotoolsBuildEnvironment.configure() to opt-out from the defaulted installation dirs. #3599

• Feature: Clean repeated entries in the PATH when vcvars is run, mitigating the max size of the env var issues. #3598

• Feature: Allow vcvars to run if clang-cl compiler is detected. #3574

• Feature: Added python 2 deprecation message in the output of the conan commands. #3567

• Feature: The conan install command now prints information about the applied configuration. #3561

• Feature: New naming convention for conanfile reserved/public/private attributes. #3560

• Feature: Experimental support for Conan plugins. #3555

• Feature: Progress bars for files unzipping. #3545

• Feature: Improved graph propagation performance from O(n2) to O(n). #3528

• Feature: Added ConanInvalidConfiguration as the standard way to indicate that a specific configuration is not valid for the current package. e.g library not compatible with Windows. #3517

• Feature: Added libtool() function to the tools.XCRun() tool to locate the system libtool. #3515

• Feature: The tool tools.collect_libs() now search into each folder declared in self.cpp_info.libdirs. #3503

• Feature: Added definition CMAKE_OSX_DEPLOYMENT_TARGET to the CMake build helper following the os.version setting for Macos. #3486

• Feature: The upload of files now uses the conanmanifest.txt file to know if a file has to be uploaded or not. It avoids issues associated with the metadata of the files permissions contained in the tgz files. #3480

• Feature: The default_options in a conanfile.py can be specified now as a dictionary. #3477

• Feature: The command conan config install now support relative paths. #3468

• Feature: Added a definition CONAN_IN_LOCAL_CACHE to the CMake() build helper. #3450

• Feature: Improved AptTool at SystemPackageTool adding a function add_repository to add new apt repositories. #3445

• Feature: Experimental and initial support for the REST apiv2 that will allow transfers in one step and revisions in the future. #3442

• Feature: Improve the output of a conan install command printing dependencies when a binary is not found. #3438

• Feature: New b2 generator. It replaces the old incomplete boost_build generator that is now deprecated. #3416

• Feature: New tool.replace_path_in_file to replace Windows paths in a file doing case-insensitive comparison and indistinct path separators comparison: “/” == “\” #3399

• Feature: [Experimental] Add SCM support for SVN. #3192

• Fix: None option value was not being propagated upstream in the dependency graph #3684

• Fix: Apply system_requirements() always on install, in case the folder was removed. #3647

• Fix: Included bottle package in the development requirements #3646

• Fix: More complete architecture list in the detection of the gnu triplet and the detection of the build machine architecture. #3581

• Fix: Avoid downloading the manifest of the recipe twice for uploads. Making this download quiet, without output. #3552

• Fix: Fixed Git scm class avoiding to replace any character in the get_branch() function. #3496

• Fix: Removed login username syntax checks that were no longer necessary. #3464

• Fix: Removed bad duplicated messages about dependency overriding when using conan alias. #3456

• Fix: Improve conan info help message. #3415

• Fix: The generator files are only written in disk if the content of the generated file changes. #3412

• Fix: Improved error message when parsing a bad conanfile reference. #3410

• Fix: Paths are replaced correctly on Windows when using CMake().patch_config_files(). #3399

• Fix: Fixed AptTool at SystemPackageTool to improve the detection of an installed package. #3033

• BugFix: Fixes python_requires overwritten when using more than one of them in a recipe #3628

• BugFix: Fix output overlap of decompress progress and plugins #3622

• Bugfix: Check if the system_requirements() have to be executed even when the package is retrieved from the local cache. #3616

• Bugfix: All API calls are now logged into the CONAN_TRACE_FILE log file. #3613

• Bugfix: Renamed os (reserved symbol) parameter to os_ in the get_gnu_triplet tool. #3603

• Bugfix: conan get command now works correctly with enabled short paths. #3600

• Bugfix: Fixed scm replacement of the variable when exporting a conanfile. #3576

• Bugfix: apiv2 was retrying the downloads even when a 404 error was raised. #3562

• Bugfix: Fixed export_sources excluded patterns containing symlinks. #3537

• Bugfix: Fixed bug with transitive private dependencies. #3525

• Bugfix: get_cased_path crashed when the path didn’t exist. #3516

• BugFix: Fixed failures when Conan walk directories with files containing not ASCCI characters in the file name. #3505

• Bugfix: The scm feature now looks for the repo root even when the conanfile.py is in a subfolder. #3479

• Bugfix: Fixed OSInfo.bash_path() when there is no windows_subsystem. #3455

• Bugfix: AutotoolsBuildEnvironment was not defaulting the output library directory causing broken consumption of packages when rebuilding from sources in different Linux distros using lib64 default. Read more here. #3388

1.7.4 (18-September-2018)

• Bugfix: Fixed a bug in apiv2.

• Fix: Disabled apiv2 by default until it gets more stability.

1.7.3 (6-September-2018)

• Bugfix: Uncontrolled exception was raised while printing the output of an error downloading a file.

• Bugfix: Fixed *:option pattern for conanfile consumers.

1.7.2 (4-September-2018)

• Bugfix: Reverted default options initialization to empty string with varname=.

• Bugfix: Fixed conan build command with –test and –install arguments.

1.7.1 (31-August-2018)

• Fix: Trailing sentences in Conan help command.

• Fix: Removed hardcoded -c init.templateDir= argument in git clone for conan config install, in favor of a new --args parameter that allows custom arguments.

• Fix: SCM can now handle nested subfolders.

• BugFix: Fix conan export-pkg unnecessarily checking remotes.

1.7.0 (29-August-2018)

• Feature: Support for C++20 in CMake > 3.12.

• Feature: Included support for Python 3.7 in all platforms.

• Feature: [Experimental] New python_requires function that allows you to reuse Python code by “requiring” it in Conan packages, even to extend the ConanFile class. See: Python requires: reusing python code in recipes

• Feature: CMake method patch_config_paths replaces absolute paths to a Conan package’s dependencies as well as to the Conan package itself.

• Feature: MSBuild and VisualStudioBuildEnvironment build helpers adjust the /MP flag to build code in parallel using multiple cores.

• Feature: Added a print_errors parameter to tools.PkgConfig() helper.

• Feature: Added --query argument to conan upload.

• Feature: virtualenv/virtualbuildenv/virtualrunenv generators now create bash scripts in Windows for use in subsystems.

• Feature: Improved resolution speed for version ranges through caching of remote requests.

• Feature: Improved the result of tools.vcvars_dict(only_diff=True) including a “list” return type that can be used with tools.environment_append().

• Fix: AutoToolsBuildEnvironment build helper now keeps the PKG_CONFIG_PATHS variable previously set in the environment.

• Fix: The SCM feature keeps the .git folder during the copy of a local directory to the local cache.

• Fix: The SCM feature now correctly excludes the folders ignored by Git during the copy of a local directory to the local cache.

• Fix: Conan messages now spell “overridden” correctly.

• Fix: MSBuild build helper arguments using quotes.

• Fix: vcvars_command and MSBuild build helper use the amd64_x86 parameter when Visual Studio > 12 and when cross building for x86.

• Fix: Disabled -c init.TemplateDir in conan config install from a Git repository.

• Fix: Clang compiler check in cmake generator.

• Fix: Detection of Zypper package tool on latest versions of openSUSE.

• Fix: Improved help output of some commands.

• BugFix: qmake generator hyphen.

• Bugfix: Git submodules are now initialized from repo HEAD after checking out the referenced revision when using the scm attribute.

• BugFix: Declaration default_options without value, e.g. default_options = "config=". Now it will throw an exception.

• BugFix: Deactivate script in virtualenv generator causes PS1 to go unset.

• BugFix: Apply general scope options to a consumer ConanFile first.

• BugFix: Fixed detection of a valid repository for Git in the SCM feature.

1.6.1 (27-July-2018)

• Bugfix: conan info --build-order was showing duplicated nodes for build-requires and private dependencies.

• Fix: Fixed failure with the alias packages when the name of the package (excluded the version) was different from the aliased package. Now it is limited in the conan alias command.

1.6.0 (19-July-2018)

• Feature: Added a new self.run(..., run_environment=True) argument, that automatically applies PATH, LD_LIBRARY_PATH and DYLD_LIBRARY_PATH environment variables from the dependencies, to the execution of the current command.

• Feature: Added a new tools.run_environment() method as a shortcut to using tools.environment_append and RunEnvironment() together.

• Feature: Added a new self.run(..., ignore_errors=True) argument that represses launching an exception if the commands fails, so user can capture the return code.

• Feature: Improved tools.Git to allow capturing the current branch and enabling the export of a package whose version is based on the branch and commit.

• Feature: The json generator now outputs settings and options

• Feature: conan remote list --raw prints remote information in a format valid for remotes.txt, so it can be used for conan config install

• Feature: Visual Studio generator creates the conanbuildinfo.props file using the $(USERPROFILE) macro.

• Feature: Added a filename parameter to tools.get() in case it cannot be deduced from the URL.

• Feature: Propagated keep_permissions and pattern parameters from tools.get() to tools.unzip().

• Feature: Added XZ extensions to unzip(). This will only work in Python 3 with lzma support enabled, otherwise, and error is produced.

• Feature: Added FRAMEWORK_SEARCH_PATHS var to the Xcode generator to support packaging Apple Frameworks. Read more here.

• Feature: Added conan build --test and a should_configure attribute to control the test stage. Read more here.

• Feature: New tools to convert between files with LF and CRLF line endings: tools.unix2dos() and tools.dos2unix().

• Feature: Added conan config install [url] --type=git to force cloning of a Git repo for http://... git urls.

• Feature: Improved output information when a package is missing in a remote to show which package requires the missing one.

• Feature: Improved the management of an upload interruption to avoid uploads of incomplete tarballs.

• Feature: Added new LLVM toolsets to the base settings.yml (Visual Studio).

• Feature: Created a plugin for pylint with the previous Conan checks (run in the export) enabling usage of the plugin in IDEs and command line to check if recipes are correct.

• Feature: Improved the deb installer to guarantee that it runs correctly in Debian 9 and other distros.

• Fix: Fixed conan search -q and conan remove -q to not return packages that don’t have the setting specified in the query.

• Fix: Fixed SystemPackageTool when calling to update with sudo is not enabled and mode=verify.

• Fix: Removed pyinstaller shared libraries from the linker environment for any Conan subprocess.

• BugFix: The YumTool now calls yum update instead of yum check-update.

• Bugfix: Solved a bug in which using --manifest parameter with conan create caused the deletion of information in the dependency graph.

• Bugfix: Solved bug in which the build method of the Version model was not showing the version build field correctly .

• Bugfix: Fixed a Conan crash caused by a dependency tree containing transitive private nodes.

1.5.2 (5-July-2018)

• Bugfix: Fixed bug with pre-1.0 packages with sources.

• Bugfix: Fixed regression in private requirements.

1.5.1 (29-June-2018)

• Bugfix: Sources in the local cache weren’t removed when using scm pointing to the local source directory, causing changes in local sources not applied to the conan create process.

• Bugfix: Fixed bug causing duplication of build requires in the dependency graph.

1.5.0 (27-June-2018)

• Feature: conan search <pkg-ref> -r=all now is able to search for binaries too in all remotes

• Feature: Dependency graph improvements: build_requires are represented in the graph (visible in conan info`, also in the HTML graph). conan install and conan info commands shows extended information of the binaries status (represented in colors in HTML graph). The dependencies declaration order in recipes is respected (as long as it doesn’t break the dependency graph order).

• Feature: improved remote management, it is possible to get binaries from different remotes.

• Feature: conan user command is now able to show authenticated users.

• Feature: Added conan user --json json output to the command.

• Feature: New pattern argument to tools.unzip() and tools.untargz functions, that allow efficient extraction of certain files only.

• Feature : Added Manjaro support for SystemPackageTools.

• Feature: Added Macos version subsetting in the default settings.yml file, to account for the “min OSX version” configuration.

• Feature: SCM helper argument to recursively clone submodules

• Feature: SCM helper management of subfolder, allows using exports and exports_sources, manage symlinks, and do not copy files that are .gitignored. Also, works better in the local development flow.

• Feature: Modifies user agent header to output the Conan client version and the Python version. Example: Conan/1.5.0 (Python 2.7.1)

• Fix: The CMake() helper now doesn’t require a compiler input to deduce the default generator.

• Fix: conan search <pattern> now works consistently in local cache and remotes.

• Fix: Proxy related environment variables are removed if conan.conf declares proxy configuration.

• Fix: Fixed the parsing of invalid JSON when Microsoft vswhere tool outputs invalid non utf-8 text.

• Fix: Applying winsdk and vcvars_ver to MSBuild and vcvars_command for VS 14 too.

• Fix: Workspaces now support build_requires.

• Fix: CMake() helper now defines by default CMAKE_EXPORT_NO_PACKAGE_REGISTRY.

• Fix: Settings constraints declared in recipes now don’t error for single strings (instead of a list with a string element).

• Fix: cmake_minimum_required() is now before project() in templates and examples.

• Fix: CONAN_SYSREQUIRES_MODE=Disabled now doesn’t try to update the system packages registry.

• Bugfix: Fixed SCM origin path of windows folder (with backslashes).

• Bugfix: Fixed SCM dictionary order when doing replacement.

• Bugfix: Fixed auto-detection of apple-clang 10.0.

• Bugfix: Fixed bug when doing a conan search without registry file (just before installation).

1.4.5 (22-June-2018)

• Bugfix: The package_id recipe method was being called twice causing issues with info objects being populated with wrong information.

1.4.4 (11-June-2018)

• Bugfix: Fix link order with private requirements.

• Bugfix: Removed duplicate -std flag in CMake < 3 or when the standard is not yet supported by CMAKE_CXX_STANDARD.

• Bugfix: Check scm attribute to avoid breaking recipes with already defined one.

• Feature: Conan workspaces.

1.4.3 (6-June-2018)

• Bugfix: Added system libraries to the cmake_find_package generator.

• Fix: Added SIGTERM signal handler to quit safely.

• Bugfix: Fixed miss-detection of gcc 1 when no gcc was on a Linux machine.

1.4.2 (4-June-2018)

• Bugfix: Fixed multi-config packages.

• Bugfix: Fixed cppstd management with CMake and 20 standard version.

1.4.1 (31-May-2018)

• Bugfix: Solved issue with symlinks making recipes to fail with self.copy.

• Bugfix: Fixed c++20 standard usage with modern compilers and the creation of the settings.yml containing the settings values.

• Bugfix: Fixed error with cased directory names in Windows.

• BugFix: Modified confusing warning message in the SCM tool when the remote couldn’t be detected.

1.4.0 (30-May-2018)

• Feature: Added scm conanfile attribute, to easily clone/checkout from remote repositories and to capture the remote and commit in the exported recipe when the recipe and the sources lives in the same repository. Read more in “Recipe and sources in a different repo” and “Recipe and sources in the same repo”.

• Feature: Added cmake_paths generator to create a file setting CMAKE_MODULE_PATH and CMAKE_PREFIX_PATH to the packages folders. It can be used as a CMake toolchain to perform a transparent CMake usage, without include any line of cmake code related to Conan. Read more here.

• Feature: Added cmake_find_package generator that generates one FindXXX.cmake file per each dependency both with classic CMake approach and modern using transitive CMake targets. Read more here.

• Feature: Added conan search --json json output to the command.

• Feature: CMake build helper now sets PKG_CONFIG_PATH automatically and receives new parameter pkg_config_paths to override it.

• Feature: CMake build helper doesn’t require to specify “arch” nor “compiler” anymore when the generator is “Unix Makefiles”.

• Feature: Introduced default settings for GCC 8, Clang 7.

• Feature: Introduced support for c++ language standard c++20.

• Feature: Auto-managed fPIC option in AutoTools build helper.

• Feature: tools.vcvars_command() and tools.vcvars_dict() now take vcvars_ver and winsdk_version as parameters.

• Feature: tools.vcvars_dict() gets only the env vars set by vcvars with new parameter only_diff=True.

• Feature: Generator virtualbuildenv now sets Visual Studio env vars via tool.vcvars_dict().

• Feature: New tools for Apple development including XCRun wrapper.

• Fix: Message “Package ‘1’ created” in package commands with short_paths=True now shows package ID.

• Fix: tools.vcvars_dict() failing to create dictionary due to newlines in vcvars command output.

• Bugfix: tools.which() returning directories instead of only files.

• Bugfix: Inconsistent local cache when developing a recipe with short_paths=True.

• Bugfix: Fixed reusing MSBuild() helper object for multi-configuration packages.

• Bugfix: Fixed authentication using env vars such as CONAN_PASSWORD when CONAN_NON_INTERACTIVE=True.

• Bugfix: Fixed Android api_level was not used to adjust CMAKE_SYSTEM_VERSION.

• Bugfix: Fixed MSBuild() build helper creating empty XML node for runtime when the setting was not declared.

• Bugfix: Fixed default_options not supporting = in value when specified as tuple.

• Bugfix: AutoToolsBuildEnvironment build helper’s pkg_config_paths parameter now sets paths relative to the install folder or absolute ones if provided.

1.3.3 (10-May-2018)

• Bugfix: Fixed encoding issues writing to files and calculating md5 sums.

1.3.2 (7-May-2018)

• Bugfix: Fixed broken run_in_windows_bash due to wrong argument.

• Bugfix: Fixed VisualStudioBuildEnvironment when toolset was not defined.

• Bugfix: Fixed md5 computation of conan .tgz files for recipe, exported sources and packages due to file ordering and flags.

• Bugfix: Fixed conan download -p=wrong_id command

• Fix: Added apple-clang 9.1

1.3.1 (3-May-2018)

• Bugfix: Fixed regression with AutoToolsBuildEnvironment build helper that raised exception with not supported architectures during the calculation of the GNU triplet.

• Bugfix: Fixed pkg_config generator, previously crashing when there was no library directories in the requirements.

• Bugfix: Fixed conanfile.run() with win_bash=True quoting the paths correctly.

• Bugfix: Recovered parameter “append” to the tools.save function.

• Bugfix: Added support (documented but missing) to delete options in package_id() method using del self.info.options.<option>

1.3.0 (30-April-2018)

• Feature: Added new build types to default settings.yml: RelWithDebInfo and MinSizeRel. Compiler flags will be automatically defined in build helpers that do not understand them (MSBuild, AutotoolsBuildEnvironment)

• Feature: Improved package integrity. Interrupted downloads or builds shouldn’t leave corrupted packages.

• Feature: Added conan upload --json json output to the command.

• Feature: new conan remove --locks to clear cache locks. Useful when killing conan.

• Feature: New CircleCI template scripts can be generated with the conan new command.

• Feature: The CMake() build helper manages the fPIC flag automatically based on the options fPIC and shared when present.

• Feature: Allowing requiring color output with CONAN_COLOR_DISPLAY=1 environment variable. If CONAN_COLOR_DISPLAY is not set rely on tty detection for colored output.

• Feature: New conan remote rename and conan add --force commands to handle remotes.

• Feature: Added parameter use_env to the MSBuild().build() build helper method to control the /p:UseEnv msbuild argument.

• Feature: Timeout for downloading files from remotes is now configurable (defaulted to 60 seconds)

• Feature: Improved Autotools build helper with new parameters and automatic set of --prefix to self.package_folder.

• Feature: Added new tool to compose GNU like triplets for cross-building: tools.get_gnu_triplet()

• Fix: Use International Units for download/upload transfer sizes (Mb, Kb, etc).

• Fix: Removed duplicated paths in cmake_multi generated files.

• Fix: Removed false positive linter warning for local imports.

• Fix: Improved command line help for positional arguments

• Fix -ks alias for --keep-source argument in conan create and conan export.

• Fix: removed confusing warnings when self.copy() doesn’t copy files in the package() method.

• Fix: None is now a possible value for settings with nested subsettings in settings.yml.

• Fix: if vcvars_command is called and Visual is not found, raise an error instead of warning.

• Bugfix: self.env_info.paths and self.env_info.PATHS both map now to PATHS env-var.

• Bugfix: Local flow was not correctly recovering state for option values.

• Bugfix: Windows NTFS permissions failed in case USERDOMAIN env-var was not defined.

• Bugfix: Fixed generator pkg_config when there are absolute paths (not use prefix)

• Bugfix: Fixed parsing of settings values with "=" character in conaninfo.txt files.

• Bugfix: Fixed misdetection of MSYS environments (generation of default profile)

• Bugfix: Fixed string escaping in CMake files for preprocessor definitions.

• Bugfix: upload --no-overwrite failed when the remote package didn’t exist.

• Bugfix: Don’t raise an error if detect_windows_subsystem doesn’t detect a subsystem.

1.2.3 (10-Apr-2017)

• Bugfix: Removed invalid version field from scons generator.

1.2.1 (3-Apr-2018)

• Feature: Support for apple-clang 9.1

• Bugfix: compiler_args generator manage correctly the flag for the cppstd setting.

• Bugfix: Replaced exception with a warning message (recommending the six module) when using StringIO class from the io module.

1.2.0 (28-Mar-2018)

• Feature: The command conan build has new --configure, --build, --install arguments to control the different stages of the build() method.

• Feature: The command conan export-pkg now has a --package-folder that can be used to export an exact copy of the provided folder, irrespective of the package() method. It assumes the package has been locally created with a previous conan package or with a conan build using a cmake.install() or equivalent feature.

• Feature: New json generator, generates a json file with machine readable information from dependencies.

• Feature: Improved proxies configuration with no_proxy_match configuration variable.

• Feature: New conan upload parameter --no-overwrite to forbid the overwriting of recipe/packages if they have changed.

• Feature: Exports are now copied to source_folder when doing conan source.

• Feature: tools.vcvars() context manager has no effect if platform is different from Windows.

• Feature: conan download has new optional argument --recipe to download only the recipe of a package.

• Feature: Added CONAN_NON_INTERACTIVE environment variable to disable interactive prompts.

• Feature: Improved MSbuild() build helper using vcvars() and generating property file to adjust the runtime automatically. New method get_command() with the call to msbuild tool. Deprecates tools.build_sln_command() and tools.msvc_build_command().

• Feature: Support for clang 6.0 correctly managing cppstd flags.

• Feature: Added configuration to specify a client certificate to connect to SSL server.

• Feature: Improved ycm generator to show json dependencies.

• Feature: Experimental --json parameter for conan install and conan create to generate a JSON file with install information.

• Fix: conan install --build does not absorb more than one parameter.

• Fix: Made conanfile templates generated with conan new PEP8 compliant.

• Fix: conan search output improved when there are no packages for the given reference.

• Fix: Made conan download also retrieve sources.

• Fix: Pylint now runs as an external process.

• Fix: Made self.user and self.channel available in test_package.

• Fix: Made files writable after a deploy() or imports() when CONAN_READ_ONLY_CACHE`/general.read_only_cache environment/config variable is True.

• Fix: Linter showing warnings with cpp_info object in deploy() method.

• Fix: Disabled linter for Conan pyinstaller as it was not able to find the python modules.

• Fix: conan user -r=remote_name showed all users for all remotes, not the one given.

• BugFix: Python reuse code failing to import module in package_info().

• BugFix: Added escapes for backslashes in cmake generator.

• BugFix: conan config install now raises error if git clone fails.

• BugFix: Alias resolution not working in diamond shaped dependency trees.

• BugFix: Fixed builds with Cygwin/MSYS2 failing in Windows with self.short_paths=True and NTFS file systems due to ACL permissions.

• BugFix: Failed to adjust architecture when running Conan platform detection in ARM devices.

• BugFix: Output to StringIO failing in Python 2.

• BugFix: conan profile update not working to update [env] section.

• BugFix: conan search not creating default remotes when running it as the very first command after Conan installation.

• BugFix: Package folder was not cleaned after the installation and download of a package had failed.

1.1.1 (5-Mar-2018)

• Feature: build_sln_command() and msvc_build_command() receive a new optional parameter platforms to match the definition of the .sln Visual Studio project architecture. (Typically Win32 vs x86 problem).

• Bugfix: Flags for Visual Studio command (cl.exe) using “-” instead of “/” to avoid problems in builds using AutoTools scripts with Visual Studio compiler.

• Bugfix: Visual Studio runtime flags adjusted correctly in AutoToolsBuildEnvironment() build helper

• Bugfix: AutoToolsBuildEnvironment() build helper now adjust the correct build flag, not using eabi suffix, for architecture x86.

1.1.0 (27-Feb-2018)

• Feature: New conan create --keep-build option that allows re-packaging from conan local cache, without re-building.

• Feature: conan search <pattern> -r=all now searches in all defined remotes.

• Feature: Added setting cppstd to manage the C++ standard. Also improved build helpers to adjust the standard automatically when the user activates the setting. AutoToolsBuildEnvironment(), CMake(), MSBuild() and VisualStudioBuildEnvironment().

• Feature: New compiler_args generator, for directly calling the compiler from command line, for multiple compilers: VS, gcc, clang.

• Feature: Defined sysrequires_mode variable (CONAN_SYSREQUIRES_MODE env-var) with values enabled, verify, disabled to control the installation of system dependencies via SystemPackageTool typically used in system_requirements().

• Feature: automatically apply pythonpath environment variable for dependencies containing python code to be reused to recipe source(), build(), package() methods.

• Feature: CMake new patch_config_paths() methods that will replace absolute paths to conan package path variables, so cmake find scripts are relocatable.

• Feature: new --test-build-folder command line argument to define the location of the test_package build folder, and new conan.conf temp_test_folder and environment variable CONAN_TEMP_TEST_FOLDER, that if set to True will automatically clean the test_package build folder after running.

• Feature: Conan manages relative urls for upload/download to allow access the server from different configured networks or in domain subdirectories.

• Feature: Added CONAN_SKIP_VS_PROJECTS_UPGRADE environment variable to skip the upgrade of Visual Studio project when using tools.build_sln_command() [DEPRECATED], the msvc_build_command and the MSBuild() build helper.

• Feature: Improved detection of Visual Studio installations, possible to prioritize between multiple installed Visual tools with the CONAN_VS_INSTALLATION_PREFERENCE env-var and vs_installation_preference conan.conf variable.

• Feature: Added keep_path parameter to self.copy() within the imports() method.

• Feature: Added [build_requires] section to conanfile.txt.

• Feature: Added new conan help <command> command, as an alternative to --help.

• Feature: Added target parameter to AutoToolsBuildEnvironment.make method, allowing to select build target on running make

• Feature: The CONAN_MAKE_PROGRAM environment variable now it is used by the CMake() build helper to set a custom make program.

• Feature: Added --verify-ssl optional parameter to conan config install to allow self-signed SSL certificates in download.

• Feature: tools.get_env() helper method to automatically convert environment variables to python types.

• Fix: Added a visible warning about libcxx compatibility and the detected one for the default profile.

• Fix: Wrong detection of compiler in OSX for gcc frontend to clang.

• Fix: Disabled conanbuildinfo.cmake compiler checks for unknown compilers.

• Fix: visual_studio generator added missing ResourceCompile information.

• Fix: Don’t output password from URL for conan config install command.

• Fix: Signals exit with error code instead of 0.

• Fix: Added package versions to generated SCons file.

• Fix: Error message when package was not found in remotes has been improved.

• Fix: conan profile help message.

• Fix: Use gcc architecture flags -m32, -m64 for MinGW as well.

• Fix: CMake() helper do not require settings if CONAN_CMAKE_GENERATOR is defined.

• Fix: improved output of package remote origins.

• Fix: Profiles files use same structure as conan profile show command.

• Fix: conanpath.bat file is removed after conan Windows installer uninstall.

• Fix: Do not add GCC-style flags -m32, -m64, -g, -s to MSVC when using AutoToolsBuildEnvironment

• Fix: “Can’t find a binary package” message now includes the Package ID.

• Fix: added clang 5.0 and gcc 7.3 to default settings.yml.

• Bugfix: build_id() logic does not apply unless the build_id is effectively changed.

• Bugfix: self.install_folder was not correctly set in all necessary cases.

• Bugfix: --update option does not ignore local packages for version-ranges.

• Bugfix: Set self.develop=True for export-pkg command.

• Bugfix: Server HTTP responses were incorrectly captured, not showing errors for some server errors.

• Bugfix: Fixed config section update for sequential calls over the python API.

• Bugfix: Fixed wrong self.develop set to False for conan create with test_package.

• Deprecation: Removed conan-transit from default remotes registry.

1.0.4 (30-January-2018)

• Bugfix: Fixed default profile defined in conan.conf that includes another profile

• Bugfix: added missing management of sysroot in conanbuildinfo.txt affecting conan build and test_package.

• Bugfix: Fixed warning in conan source because of incorrect management of settings.

• Bugfix: Fixed priority order of environment variables defined in included profiles

• Bugfix: NMake error for parallel builds from the CMake build helper have been fixed

• Bugfix: Fixed options pattern not applied to root node (-o *:shared=True not working for consuming package)

• Bugfix: Fixed shadowed options by package name (-o *:shared=True -o Pkg:other=False was not applying shared value to Pkg)

• Fix: Using filter_known_paths=False as default to vcvars_dict() helper.

• Fix: Fixed wrong package name for output messages regarding build-requires

• Fix: Added correct metadata to conan.exe when generated via pyinstaller

1.0.3 (22-January-2018)

• Bugfix: Correct load of stored settings in conaninfo.txt (for conan build) when configure() remove some setting.

• Bugfix: Correct use of unix paths in Windows subsystems (msys, cygwin) when needed.

• Fix: fixed wrong message for conan alias --help.

• Fix: Normalized all arguments to --xxx-folder in command line help.

1.0.2 (16-January-2018)

• Fix: Adding a warning message for simultaneous use of os and os_build settings.

• Fix: Do not raise error from conanbuildinfo.cmake for Intel MSVC toolsets.

• Fix: Added more architectures to default settings.yml arch_build setting.

• Fix: using --xxx-folder in command line help messages.

• Bugfix: using quotes for Windows bash path with spaces.

• Bugfix: vcvars/vcvars_dict not including windows and windows/system32 directories in the path.

1.0.1 (12-January-2018)

• Fix: conan new does not generate cross-building (like os_build) settings by default. They make only sense for dev-tools used as build_requires

• Fix: conaninfo.txt file does not dump settings with None values

1.0.0 (10-January-2018)

• Bugfix: Fixed bug from remove_from_path due to Windows path backslash

• Bugfix: Compiler detection in conanbuildinfo.cmake for Visual Studio using toolchains like LLVM (Clang)

• Bugfix: Added quotes to bash path.

1.0.0-beta5 (8-January-2018)

• Fix: Errors from remotes different to a 404 will raise an error. Disconnected remotes have to be removed from remotes or use explicit remote with -r myremote

• Fix: cross-building message when building different architecture in same OS

• Fix: conan profile show now shows profile with same syntax as profile files

• Fix: generated test code in conan new templates will not run example app if cross building.

• Fix: conan export-pkg uses the conanfile.py folder as the default --source-folder.

• Bugfix: conan download didn’t download recipe if there are no binaries. Force recipe download.

• Bugfix: Fixed blocked self.run() when stderr outputs large tests, due to full pipe.

1.0.0-beta4 (4-January-2018)

• Feature: run_in_windows_bash accepts a dict of environment variables to be prioritized inside the bash shell, mainly intended to control the priority of the tools in the path. Use with vcvars context manager and vcvars_dict, that returns the PATH environment variable only with the Visual Studio related directories

• Fix: Adding all values to arch_target

• Fix: conan new templates now use new os_build and arch_build settings

• Fix: Updated CMake helper to account for os_build and arch_build new settings

• Fix: Automatic creation of default profile when it is needed by another one (like include(default))

• BugFix: Failed installation (non existing package) was leaving lock files in the cache, reporting a package for conan search.

• BugFix: Environment variables are now applied to build_requirements() for conan install ..

• BugFix: Dependency graph was raising conflicts for diamonds with alias packages.

• BugFix: Fixed conan export-pkg after a conan install when recipe has options.

1.0.0-beta3 (28-December-2017)

• Fix: Upgraded pylint and astroid to latest

• Fix: Fixed build_requires with transitive dependencies to other build_requires

• Fix: Improved pyinstaller creation of executable, to allow for py3-64 bits (windows)

• Deprecation: removed all --some_argument, use instead --some-argument in command line.

1.0.0-beta2 (23-December-2017)

• Feature: New command line UI. Most commands use now the path to the package recipe, like conan export . user/testing or conan create folder/myconanfile.py user/channel.

• Feature: Better cross-compiling. New settings model for os_build, arch_build, os_target, arch_target.

• Feature: Better Windows OSS ecosystem, with utilities and settings model for MSYS, Cygwin, Mingw, WSL

• Feature: package() will not warn of not copied files for known use cases.

• Feature: reduce the scope of definition of cpp_info, env_info, user_info attributes to package_info() method, to avoid unexpected errors.

• Feature: extended the use of addressing folder and conanfiles with different names for source, package and export-pkg commands

• Feature: added support for Zypper system package tool

• Fix: Fixed application of build requires from profiles that didn’t apply to requires in recipes

• Fix: Improved “test package” message in output log

• Fix: updated CI templates generated with conan new

• Deprecation: Removed self.copy_headers and family for the package() method

• Deprecation: Removed self.conanfile_directory attribute.

Note

This is a beta release, shouldn’t be installed unless you do it explicitly

$ pip install conan==1.0.0b2 –upgrade

Breaking changes

• The new command line UI breaks command line tools and integration. Most cases, just add a . to the command.

• Removed self.copy_headers, self.copy_libs, methods for package(). Use self.copy() instead.

• Removed self.conanfile_directory attribute. Use self.source_folder, self.build_folder, etc. instead

0.30.3 (15-December-2017)

• Reverted CMake() and Meson() build helpers to keep old behavior.

• Forced Astroid dependency to < 1.6 because of py3 issues.

0.30.2 (14-December-2017)

• Fix: CMake() and Meson() build helpers and relative directories regression.

• Fix: ycm generator, removed the access of cpp_info to generators, keeping the access to deps_cpp_info.

0.30.1 (12-December-2017)

• Feature: Introduced major versions for gcc (5, 6, 7) as defaults settings for OSS packages, as minors are compatible by default

• Feature: VisualStudioBuildEnvironment has added more compilation and link flags.

• Feature: new MSBuild() build helper that wraps the call to msvc_build_command() with the correct application of environment variables with the improved VisualStudioBuildEnvironment

• Feature: CMake and Meson build helpers got a new cache_build_dir argument for configure(cache_build_dir=None) that will be used to define a build directory while the package is being built in local cache, but not when built locally

• Feature: conanfiles got a new apply_env attribute, defaulted to True. If false, the environment variables from dependencies will not be automatically applied. Useful if you don’t want some dependency adding itself to the PATH by default, for example

• Feature: allow recipes to use and run python code installed with conan config install.

• Feature: conanbuildinfo.cmake now has KEEP_RPATHS as argument to keep the RPATHS, as opposed to old SKIP_RPATH which was confusing. Also, it uses set(CMAKE_INSTALL_NAME_DIR “”) to keep the old behavior even for CMake >= 3.9

• Feature: conan info is able to get profile information from the previous install, instead of requiring it as input again

• Feature: tools.unix_path support MSYS, Cygwin, WSL path flavors

• Feature: added destination folder argument to tools.get() function

• Feature: SystemPackageTool for apt-get now uses --no-install-recommends automatically.

• Feature: visual_studio_multi generator now uses toolsets instead of IDE version to identify files.

• Fix: generators failures print traces to help debugging

• Fix: typos in generator names, or non-existing generator now raise an Error instead of a warning

• Fix: short_paths feature is active by default in Windows. If you want to opt-out, you can use CONAN_USER_HOME_SHORT=None

• Fix: SystemPackageTool doesn’t use sudo in Windows

• BugFix: Not using parallel builds for Visual<10 in CMake build helper.

• Deprecation: conanfile_directory` shouldn't be used anymore in recipes. Use ``source_folder, build_folder, etc.

Note

Breaking changes

• scopes have been completely removed. You can use environment variables, or the conanfile.develop or conanfile.in_local_cache attributes instead.

• Command test_package has been removed. Use conan create` instead, and conan test` for just running package tests.

• werror behavior is now by default. Dependencies conflicts will now error, and have to be fixed.

• short_paths feature is again active by default in Windows, even with Py3.6 and system LongPathsEnabled.

• ConfigureEnvironment and GCC build helpers have been completely removed

0.29.2 (2-December-2017)

• Updated python cryptography requirement for OSX due the pyOpenSSL upgrade. See more: https://pypi.org/project/pyOpenSSL/

0.29.1 (23-November-2017)

• Support for OSX High Sierra

• Reverted concurrency locks to counters, removed psutil dependency

• Implemented migration for settings.yml (for new VS toolsets)

• Fixed encoding issues in conan_server

0.29.0 (21-November-2017)

• Feature: Support for WindowsStore (WinRT, UWP)

• Feature: Support for Visual Studio Toolsets.

• Feature: New boost-build generator for generic bjam (not only Boost)

• Feature: new tools.PkgConfig helper to parse pkg-config (.pc) files.

• Feature: Added self.develop conanfile variable. It is true for conan create packages and for local development.

• Feature: Added self.keep_imports to avoid removal of imported files in the build() method. Convenient for re-packaging.

• Feature: Autodetected MSYS2 for SystemPackageTool

• Feature: AutoToolsBuildEnvironment now auto-loads pkg_config_path (to use with pkg_config generator)

• Feature: Changed search for profiles. Profiles not found in the default profiles folder, will be searched for locally. Use ./myprofile to force local search only.

• Feature: Parallel builds for Visual Studio (previously it was only parallel compilation within builds)

• Feature: implemented syntax to check options with if "something" in self.options.myoption

• Fix: Fixed CMake dependency graph when using TARGETS, that produced wrong link order for transitive dependencies.

• Fix: Trying to download the exports_sources is not longer done if such attribute is not defined

• Fix: Added output directories in cmake generator for RelWithDebInfo and MinSizeRel configs

• Fix: Locks for concurrent access to local cache now use process IDs (PIDs) to handle interruptions and inconsistent states. Also, adding messages when locking.

• Fix: Not remove the .zip file after a conan config install if such file is local

• Fix: Fixed CMake.test() for the Ninja generator

• Fix: Do not create local conaninfo.txt file for conan install <pkg-ref> commands.

• Fix: Solved issue with multiple repetitions of the same command line argument

• BugFix: Don’t rebuild conan created (with conan-create) packages when build_policy="always"

• BugFix: conan copy was always copying binaries, now can copy only recipes

• BugFix: A bug in download was causing appends instead of overwriting for repeated downloads.

• Development: Large restructuring of files (new cmd and build folders)

• Deprecation: Removed old CMake helper methods (only valid constructor is CMake(self))

• Deprecation: Removed old conan_info() method, that was superseded by package_id()

Note

Breaking changes

• CMAKE_LIBRARY_OUTPUT_DIRECTORY definition has been introduced in conan_basic_setup(), it will send shared libraries .so to the lib folder in Linux systems. Right now it was undefined.

• Profile search logic has slightly changed. For -pr=myprofile, such profile will be searched both in the default folder and in the local one if not existing. Use -pr=./myprofile to force local search only.

• The conan copy command has been fixed. To copy all binaries, it is necessary to explicit --all, as other commands do.

• The only valid use of CMake helper is CMake(self) syntax.

• If using conan_info(), replace it with package_id().

• Removed environment variable CONAN_CMAKE_TOOLSET, now the toolset can be specified as a subsetting of Visual Studio compiler or specified in the build helpers.

0.28.1 (31-October-2017)

• BugFix: Downloading (tools.download) of files with content-encoding=gzip were raising an exception because the downloaded content length didn’t match the http header content-length

0.28.0 (26-October-2017)

This is a big release, with many important and core changes. Also with a huge number of community contributions, thanks very much!

• Feature: Major revamp of most conan commands, making command line arguments homogeneous. Much better development flow adapting to user layouts, with install-folder, source-folder, build-folder, package-folder.

• Feature: new deploy() method, useful for installing binaries from conan packages

• Feature: Implemented some concurrency support for the conan local cache. Parallel conan install and conan create for different configurations should be possible.

• Feature: options now allow patterns in command line: -o *:myoption=myvalue applies to all packages

• Feature: new pc generator that generates files from dependencies for pkg-config

• Feature: new Meson helper, similar to CMake for Meson build system. Works well with pc generator.

• Feature: Support for read-only cache with CONAN_READ_ONLY_CACHE environment variable

• Feature: new visual_studio_multi generator to load Debug/Release, 32/64 configs at once

• Feature: new tools.which helper to locate executables

• Feature: new conan --help layout

• Feature: allow to override compiler version in vcvars_command

• Feature: conan user interactive (and not exposed) password input for empty -p argument

• Feature: Support for PacManTool for system_requirements() for ArchLinux

• Feature: Define VS toolset in CMake constructor and from environment variable CONAN_CMAKE_TOOLSET

• Feature: conan create now accepts werror argument

• Feature: AutoToolsBuildEnvironment can use CONAN_MAKE_PROGRAM env-var to define make program

• Feature: added xcode9 for apple-clang 9.0, clang 5 to default settings.yml

• Feature: deactivation of short_paths in Windows 10 with Py3.6 and long path support is automatic

• Feature: show unzip progress by percentage, not by file (do not clutters output)

• Feature: do not use sudo for system requirements if already running as root

• Feature: tools.download able to use headers/auth

• Feature: conan does not longer generate bytecode from recipes (no more .pyc, and more efficient)

• Feature: add parallel argument to build_sln_command for VS

• Feature: Show warning if vs150comntools is an invalid path

• Feature: tools.get() now has arguments for hash checking

• Fix: upload pattern now accepts Pkg/*

• Fix: improved downloader, make more robust, better streaming

• Fix: tools.patch now support adding/removal of files

• Fix: The default profile is no longer taken as a base and merged with user profile. Use explicit include(default) instead.

• Fix: properly manage x86 as cross building with autotools

• Fix: tools.unzip removed unnecessary long-paths check in Windows

• Fix: package_info() is no longer executed at install for the consumer conanfile.py

• BugFix: source folder was not being correctly removed when recipe was updated

• BugFix: fixed CMAKE_C_FLAGS_DEBUG definition in cmake generator

• BugFix: CMAKE_SYSTEM_NAME is now Darwin for iOS, watchOS and tvOS

• BugFix: xcode generator fixed handling of compiler flags

• BugFix: pyinstaller hidden import that broke .deb installer

• BugFix: conan profile list when local files matched profile names

Note

Breaking changes

This is an important release towards stabilizing conan and moving out of beta. Some breaking changes have been done, but mostly to command line arguments, so they should be easy to fix. Package recipes or existing packages shouldn’t break. Please update, it is very important to ease the transition of future stable releases. Do not hesitate to ask questions, or for help if you need it. This is a possibly not complete list of things to take into account:

• The command conan install doesn’t accept cwd anymore, to change the directory where the generator files are written, use the --install-folder parameter.

• The command conan install doesn’t accept --all anymore. Use conan download <ref> instead.

• The command conan build now requires the path to the conanfile.py (optional before)

• The command conan package not longer re-package a package in the local cache, now it only operates in a user local folder. The recommended way to re-package a package is using conan build and then conan export-pkg.

• Removed conan package_files in favor of a new command conan export-pkg. It requires a local recipe with a package() method.

• The command conan source no longer operates in the local cache. now it only operates in a user local folder. If you used conan source with a reference to workaround the concurrency, now it natively supported, you can remove the command call and trust concurrent install processes.

• The command conan imports doesn’t accept -d, --dest anymore, use --imports-folder parameter instead.

• If you specify a profile in a conan command, like conan create or conan install the base profile ~/.conan/profiles/default won’t be applied. Use explicit include to keep the old behavior.

0.27.0 (20-September-2017)

• Feature: conan config install <url> new command. Will install remotes, profiles, settings, conan.conf and other files into the local conan installation. Perfect to synchronize configuration among teams

• Feature: improved traceback printing when errors are raised for more context. Configurable via env

• Feature: filtering out non existing directories in cpp_info (include, lib, etc), so some build systems don’t complain about them.

• Feature: Added include directories to ResourceCompiler and to MIDL compiler in visual_studio generator

• Feature: new visual_studio_legacy generator for Visual Studio 2008

• Feature: show path where manifests are locally stored

• Feature: replace_in_file now raises error if replacement is not done (opt-out parameter)

• Feature: enabled in conan.conf [proxies] section no_proxy=url1,url2 configuration (to skip proxying for those URLs), as well as http=None and https=None to explicitly disable them.

• Feature: new conanfile self.in_local_cache attribute for conditional logic to apply in user folders local commands

• Feature: CONAN_USER_HOME_SHORT=None can disable the usage of short_paths in Windows, for modern Windows that enable long paths at the system level

• Feature: if "arm" in self.settings.arch is now a valid check (without casting to str(self.settings.arch))

• Feature: added cwd`` argument to conan source local method.

• Fix: unzip crashed for 0 Bytes zip files

• Fix: collect_libs moved to the tools module

• Bugfix: fixed wrong regex in deps_cpp_info causing issues with dots and dashes in package names

• Development: Several internal refactorings (tools module, installer), testing (using VS2015 as default, removing VS 12 in testing). Conditional CI in travis for faster builds in developers, downgrading to CMake 3.7 in appveyor

• Deprecation: dev_requires have been removed (it was not documented, but accessible via the requires(dev=True) parameter. Superseded by build_requires.

• Deprecation: sources tgz files for exported sources no longer contain “.c_src” subfolder. Packages created with 0.27 will be incompatible with conan < 0.25

0.26.1 (05-September-2017)

• Feature: added apple-clang 9.0 to default settings.

• Fix: conan copy command now supports symlinks.

• Fix: fixed removal of “export_source” folder when files have no permissions

• Bugfix: fixed parsing of conanbuildinfo.txt with package names containing dots.

0.26.0 (31-August-2017)

• Feature: conan profile command has implemented update, new, remove subcommands, with detect``, to allow creation, edition and management of profiles.

• Feature: conan package_files command now can call recipe package() method if build_folder`` or source_folder`` arguments are defined

• Feature: graph loading algorithm improved to avoid repeating nodes. Results in much faster times for dense graphs, and avoids duplications of private requirements.

• Feature: authentication based on environment variables. Allows very long processes without tokens being expired.

• Feature: Definition of Visual Studio runtime setting MD or MDd is now automatic based on build type, not necessary to default in profile.

• Feature: Capturing SystemExit to return user error codes to the system with sys.exit(code)

• Feature: Added SKIP_RPATH argument to cmake conan_basic_setup() function

• Feature: Optimized uploads, now uploads will be skipped if there are no changes, irrespective of timestamp

• Feature: Automatic detection of VS 15-2017, via both a vs150comntools variable, and using vswhere.exe

• Feature: Added NO_OUTPUT_DIRS argument to cmake conan_basic_setup() function

• Feature: Add support for Chocolatey system package manager for Windows.

• Feature: Improved in conan user home and path storage configuration, better error checks.

• Feature: export command is now able to export recipes without name or version, specifying the full reference.

• Feature: Added new default settings, Arduino, gcc-7.2

• Feature: Add conan settings to cmake generated file

• Feature: new tools.replace_prefix_in_pc_file() function to help with .pc files.

• Feature: Adding support for system package tool pkgutil on Solaris

• Feature: conan remote update now allows --insert argument to change remote order

• Feature: Add verbose definition to CMake helper.

• Fix: conan package working locally failed if not specified build_folder

• Fix: Search when using wildcards for version like Pkg/*@user/channel

• Fix: Change current working directory to the conanfile.py one before loading it, so relative python imports or code work.

• Fix: package_files command now works with short_paths too.

• Fix: adding missing require of tested package in test_package/conanfile build() method

• Fix: path joining in vcvars_command for custom VS paths defined via env-vars

• Fix: better managing string escaping in CMake variables

• Fix: ExecutablePath assignment has been removed from the visual_studio generator.

• Fix: removing export_source folder containing exported code, fix issues with read-only files and keeps cache consistency better.

• Fix: Accept 100 return code from yum check-update

• Fix: importing *.so files from the conan new generated test templates

• Fix: progress bars display when download/uploads are not multipart (reported size 0)

• Bugfix: fixed wrong OSX DYLD_LIBRARY_PATH variable for virtual environments

• Bugfix: FileCopier had a bug that affected self.copy() commands, changing base reference directory.

0.25.1 (20-July-2017)

• Bugfix: Build requires are now applied correctly to test_package projects.

• Fix: Fixed search command to print an error when –table parameter is used without a reference.

• Fix: install() method of the CMake() helper, allows parallel building, change build folder and custom parameters.

• Fix: Controlled errors in migration, print warning if conan is not able to remove a package directory.

0.25.0 (19-July-2017)

Note

This release introduces a new layout for the local cache, with dedicated export_source folder to store the source code exported with exports_sources feature, which is much cleaner than the old .c_src subfolder. A migration is included to remove from the local cache packages with the old layout.

• Feature: new conan create command that supersedes test_package for creating and testing package. It works even without the test_package folder, and have improved management for user, channel. The test_package recipe no longer defines requires

• Feature: new conan get command that display (with syntax highlight) package recipes, and any other file from conan: recipes, conaninfo.txt, manifests, etc.

• Feature: new conan alias command that creates a special package recipe, that works like an alias or a proxy to other package, allowing easy definition and transparent management of “using the latest minor” and similar policies. Those special alias packages do not appear in the dependency graph.

• Feature: new conan search --table=file.html command that will output an html file with a graphical representation of available binaries

• Feature: created default profile, that replace the [settings_default] in conan.conf and augments it, allowing to define more things like env-vars, options, build_requires, etc.

• Feature: new self.user_info member that can be used in package_info() to define custom user variables, that will be translated to general purpose variables by generators.

• Feature: conan remove learned the --outdated argument, to remove those binary packages that are outdated from the recipe, both from local cache and remotes

• Feature: conan search learned the --outdated argument, to show only those binary packages that are outdated from the recipe, both from local cache and remotes

• Feature: Automatic management CMAKE_TOOLCHAIN_FILE in CMake helper for cross-building.

• Feature: created conan_api, a python API interface to conan functionality.

• Feature: new cmake.install() method of CMake helper.

• Feature: short_paths feature now applies also to exports_sources

• Feature: SystemPackageTool now supports FreeBSD system packages

• Feature: build_requires now manage options too, also default options in package recipes

• Feature: conan build learned new --package_folder argument, useful if the build system perform the packaging

• Feature: CMake helper now defines by default CMAKE_INSTALL_PREFIX pointing to the current package_folder, so cmake.install() can transparently execute the packaging.

• Feature: improved command UX with cwd`` arguments to allow define the current directory for the command

• Feature: improved VisualStudioBuildEnvironment

• Feature: transfers now show size (MB, KB) of download/uploaded files, and current status of transfer.

• Feature: conan new now has arguments to generate CI scripts for Gitlab CI.

• Feature: Added MinRelSize and RelWithDebInfo management in CMake helper.

• Fix: make mkdir, rmdir, relative_dirs available for import from conans module.

• Fix: improved detection of Visual Studio default under cygwin environment.

• Fix: package_files now allows symlinks

• Fix: Windows installer now includes conan_build_info tool.

• Fix: appending environment variables instead of overwriting them when they come from different origins: upstream dependencies and profiles.

• Fix: made opt-in the check of package integrity before uploads, it was taking too much time, and provide little value for most users.

• Fix: Package recipe linter removed some false positives

• Fix: default settings from conan.conf do not fail for constrained settings in recipes.

• Fix: Allowing to define package remote with conan remote add_ref before download/upload.

• Fix: removed duplicated BUILD_SHARED_LIBS in test_package

• Fix: add “rhel” to list of distros using yum.

• Bugfix: allowing relative paths in exports and exports_sources fields

• Bugfix: allow custom user generators with underscore

0.24.0 (15-June-2017)

• Feature: conan new new arguments to generate Travis-CI and Appveyor files for Continuous Integration

• Feature: Profile files with include() and variable declaration

• Feature: Added RelWithDebInfo/MinRelSize to cmake generators

• Feature: Improved linter, removing false positives due to dynamic conanfile attributes

• Feature: Added tools.ftp_download() function for FTP retrieval

• Feature: Managing symlinks between folders.

• Feature: conan remote add command learned new insert`` option to add remotes in specific order.

• Feature: support multi-config in the SCons generator

• Feature: support for gcc 7.1+ detection

• Feature: tools now are using global requests and output instances. Proxies will work for tools.download()

• Feature: json`` parameter added to conan info` command to create a JSON with the build_order.

• Fix: update default repos, now pointing to Bintray.

• Fix: printing outdated from recipe also for remotes

• Fix: Fix required slash in configure_dir of AutoToolsBuildEnvironment

• Fix: command new with very short names, now errors earlier.

• Fix: better error detection for incorrect Conanfile.py letter case.

• Fix: Improved some cmake robustness using quotes to avoid cmake errors

• BugFix: Fixed incorrect firing of building due to build`` patterns error

• BugFix: Fixed bug with options incorrectly applied to build_requires and crashing

• Refactor: internal refactorings toward having a python api to conan functionality

0.23.1 (05-June-2017)

• BugFix: Fixed bug while packaging symlinked folders in build folder, and target not being packaged.

• Relaxed OSX requirement of pyopenssl to <18

0.23.0 (01-June-2017)

• Feature: new build_requires field and build_requirements() in package recipes

• Feature: improved commands (source, build, package, package_files) and workflows for local development of packages in user folders.

• Feature: implemented no_copy_source attribute in recipes to avoid the copy of source code from “source” to “build folder”. Created new self.source_folder, self.build_folder, self.package_folder for recipes to use.

• Feature: improved qmake generator with multi-config support, resource directories

• Feature: improved exception capture and formatting for all recipe user methods exceptions

• Feature: new tools.sha256() method

• Feature: folder symlinks working now for packages and upload/download

• Feature: added set_find_paths() to cmake-multi, to set CMake FindXXX.cmake paths. This will work only for single-config build-systems.

• Feature: using environment variables for configure(), requirements() and test() methods

• Feature: added a pylintrc environment variable in conan.conf to define a PYLINTRC file with custom style definitions (like indents).

• Feature: fixed vcvars architecture setting

• Fix: Make cacert.pem folder use CONAN_USER_HOME if existing

• Fix: fixed options=a=b option definition

• Fix: package_files command allows force`` argument to overwrite existing instead of failing

• BugFix: Package names with underscore when parsing conanbuildinfo.txt

0.22.3 (03-May-2017)

• Fix: Fixed CMake generator (in targets mode) with linker/exe flags like –framework XXX containing spaces.

0.22.2 (20-April-2017)

• Fix: Fixed regression with usernames starting with non-alphabetical characters, introduced by 0.22.0

0.22.1 (18-April-2017)

• Fix: “-” symbol available again in usernames.

• Fix: Added future requirement to solve an error with pyinstaller generating the Windows installer.

0.22.0 (18-April-2017)

• Feature: [build_requires] can now be declared in profiles and apply them to build packages. Those requirements are only installed if the package is required to build from sources, and do not affect its package ID hash, and it is not necessary to define them in the package recipe. Ideal for testing libraries, cross compiling toolchains (like Android), development tools, etc.

• Feature: Much improved support for cross-building. Support for cross-building to Android provided, with toolchains installable via build_requires.

• Feature: New package_files command, that is able to create binary packages directly from user files, without needing to define build() or package() methods in the the recipes.

• Feature: command conan new with a new bare`` option that will create a minimal package recipe, usable with the package_files command.

• Feature: Improved CMake helper, with test() method, automatic setting of BUILD_SHARED_LIBS, better management of variables, support for parallel compilation in MSVC (via /MP)

• Feature: new tools.msvc_build_command() helper that both sets the Visual vcvars and calls Visual to build the solution. Also vcvars_command is improved to return non-empty string even if vcvars is set, for easier concatenation.

• Feature: Added package recipe linter, warning for potential errors and also about Python 3 incompatibilities when running from Python 2. Enabled by default can be opt-out.

• Feature: Improvements in HTML output of conan info --graph.

• Feature: allow custom path to bash, as configuration and environment variable.

• Fix: Not issuing an unused variable warning in CMake for the CONAN_EXPORTED variable

• Fix: added new mips architectures and latest compiler versions to default settings.yml

• Fix: Unified username allowed patterns to those used in package references.

• Fix: hardcoded vs15 version in tools.vcvars

• BugFix: Clean crash and improved error messages when manifests mismatch exists in conan upload.

0.21.2 (04-April-2017)

• Bugfix: virtualenv generator quoting environment variables in Windows.

0.21.1 (23-March-2017)

• BugFix: Fixed missing dependencies in AutoToolsBuildEnvironment

• BugFix: Escaping single quotes in html graph of conan info --graph=file.html.

• BugFix: Fixed loading of auth plugins in conan_server

• BugFix: Fixed visual_studio generator creating XML with dots.

0.21.0 (21-March-2017)

• Feature: conan info --graph or graph=file.html`` will generate a dependency graph representation in dot or html formats.

• Feature: Added better support and tests for Solaris Sparc.

• Feature: custom authenticators are now possible in conan_server` with plugins.

• Feature: extended conan info command with path information and filter by packages.

• Feature: enabled conditional binary packages removal with conan remove with query syntax

• Feature: enabled generation and validation of manifests from test_package.

• Feature: allowing options definitions in profiles

• Feature: new RunEnvironment helper, that makes easier to run binaries from dependent packages

• Feature: new virtualrunenv generator that activates environment variable for execution of binaries from installed packages, without requiring imports of shared libraries.

• Feature: adding new version modes for ABI compatibility definition in package_id().

• Feature: Extended conan new command with new option for exports_sources example recipe.

• Feature: CMake helper defining parallel builds for gcc-like compilers via jN``, allowing user definition with environment variable and in conan.conf.

• Feature: conan profile` command now show profiles in alphabetical order.

• Feature: extended visual_studio generator with more information and binary paths for execution with DLLs paths.

• Feature: Allowing relative paths with $PROFILE_DIR place holder in profiles

• Fix: using only file checksums to decide for modified recipe in remote, for possible concurrent builds & uploads.

• Fix: Improved build`` modes management, with better checks and allowing multiple definitions and mixtures of conditions

• Fix: Replaced warning for non-matching OS to one message stating the cross-build

• Fix: local conan source` command (working in user folder) now properly executes the equivalent of exports functionality

• Fix: Setting command line arguments to cmake command as CMake flags, while using the TARGETS approach. Otherwise, arch flags like -m32 -m64 for gcc were not applied.

• BugFix: fixed conan imports destination folder issue.

• BugFix: Allowing environment variables with spaces

• BugFix: fix for CMake with targets usage of multiple flags.

• BugFix: Fixed crash of cmake_multi generator for “multi-config” packages.

0.20.3 (06-March-2017)

• Fix: Added opt-out for CMAKE_SYSTEM_NAME automatically added when cross-building, causing users providing their own cross-build to fail

• BugFix: Corrected usage of CONAN_CFLAGS instead of CONAN_C_FLAGS in cmake targets

0.20.2 (02-March-2017)

• Fix: Regression of visual_studio``generator using ``%(ExecutablePath) instead of $(ExecutablePath)

• Fix: Regression for build=outdated –build=Pkg`` install pattern

0.20.1 (01-March-2017)

• Fix: Disabled the use of cached settings and options from installed conaninfo.txt

• Fix: Revert the use of quotes in cmake generator for flags.

• Fix: Allow comments in artifacts.properties

• Fix: Added missing commit for CMake new helpers

0.20.0 (27-February-2017)

NOTE: It is important that if you upgrade to this version, all the clients connected to the same remote, should upgrade too. Packages created with conan>=0.20.0 might not be usable with conan older conan clients.

• Feature: Largely improved management of environment variables, declaration in package_info(), definition in profiles, in command line, per package, propagation to consumers.

• Feature: New build helpers AutotoolsBuildEnvironment, VisualStudioBuildEnvironment, which deprecate ConfigureEnvironment, with much better usage of environment variables

• Feature: New virtualbuildenv generator that will generate a composable environment with build information from installed dependencies.

• Feature: New build_id() recipe method that allows to define logic to build once, and package multiple times without building. E.g.: build once both debug and release artifacts, then package separately.

• Feature: Multi-config packages. Now packages can provide multi-configuration packages, like both debug/release artifacts in the same package, with self.cpp_info.debug.libs = [...] syntax. Not restricted to debug/release, can be used for other purposes.

• Feature: new conan config command to manage, edit, display conan.conf entries

• Feature: Improvements to CMake build helper, now it has configure() and build() methods for common operations.

• Feature: Improvements to SystemPackageTool with detection of installed packages, improved implementation, installation of multi-name packages.

• Feature: Unzip with tools.unzip maintaining permissions (Linux, OSX)

• Feature: conan info command now allows profiles too

• Feature: new tools unix_path(), escape_windows_cmd(), run_in_windows_bash(), useful for autotools projects in Win/MinGW/Msys

• Feature: new context manager tools.chdir, to temporarily change directory.

• Feature: CMake using CMAKE_SYSTEM_NAME for cross-compiling.

• Feature: Artifactory build-info extraction from traces

• Feature: Attach custom headers to artifacts uploads with an artifacts.properties file.

• Feature: allow and copy symlinks while conan export

• Fix: removing quotes in some cmake variables that were generating incorrect builds

• Fix: providing better error messages for non existing binaries, with links to the docs

• Fix: improved error messages if tools.patch failed

• Fix: adding resdirs to cpp_info propagated information, and cmake variables, for directories containing resources and other data.

• Fix: printing error messages if a build`` policy doesn’t match any package

• Fix: managing VS2017 by tools. Still the manual definition of vs150comntools required.

• Bug fix: crashes when not supported characters were dumped to terminal by logger

• Bug fix: wrong executable path in Visual Studio generator

0.19.3 (27-February-2017)

• Fix: backward compatibility for new environment variables. New features to be introduced in 0.20 will produce that conaninfo.txt will not be correctly parsed, and then package would be “missing”. This will happen for packages created with 0.20, and consumed with older than 0.19.3

NOTE: It is important that you upgrade at least to this version if you are using remotes with packages that might be created with latest conan releases (like conan.io).

0.19.2 (15-February-2017)

• Bug fix: Fixed bug with remotes behind proxies

• Bug fix: Fixed bug with exports_sources feature and nested folders

0.19.1 (02-February-2017)

• Bug fix: Fixed issue with conan copy` followed by conan upload` due to the new exports_sources feature.

0.19.0 (31-January-2017)

• Feature: exports_sources allows to snapshot sources (like exports) but retrieve them strictly when necessary, to build from sources. This can largely improve install times for package recipes containing sources

• Feature: new configurable tracer able to create structured logs of conan actions: commands, API calls, etc

• Feature: new logger for self.run actions, able to log information from builds and other commands to files, that can afterwards be packaged together with the binaries.

• Feature: support for Solaris SunOS

• Feature: Version helper improved with patch, pre, build capabilities to handle 1.3.4-alpha2+build1 versions

• Feature: compress level of tgz is now configurable via CONAN_COMPRESSION_LEVEL environment variable, default 9. Reducing it can lead to faster compression times, at the expense of slightly bigger archives

• Feature: Add powershell support for virtualenv generator in Windows

• Feature: Improved system_requirements() raising errors when failing, retrying if not successful, being able to execute in user space for local recipes

• Feature: new cmake helper macro conan_target_link_libraries().

• Feature: new cmake CONAN_EXPORTED variable, can be used in CMakeLists.txt to differentiate building in the local conan cache as package and building in user space

• Fix: improving the caching of options from conan install in conaninfo.txt and precedence.

• Fix: conan definition of cmake output dirs has been disabled for cmake_multi generator

• Fix: imports() now uses environment variables at “conan install” (but not at “conan imports” yet)

• Fix: conan_info() method has been renamed to package_id(). Backward compatibility is maintained, but it is strongly encouraged to use the new name.

• Fix: conan_find_libraries now use the NO_CMAKE_FIND_ROOT_PATH parameter for avoiding issue while cross-compiling

• Fix: disallowing duplicate URLs in remotes, better error management

• Fix: improved error message for wildcard uploads not matching any package

• Fix: remove deprecated platform.linux_distribution(), using new “distro” package

• Bugfix: fixed management of VerifySSL parameter for remotes

• Bugfix: fixed misdetection of compiler version in conanbuildinfo.cmake for apple-clang

• Bugfix: fixed trailing slash in remotes URLs producing crashes

• Refactor: A big refactor has been do to options. Nested options are no longer supported, and option.suboption will be managed as a single string option.

This has been a huge release with contributors of 11 developers. Thanks very much to all of them!

0.18.1 (11-January-2017)

• Bug Fix: Handling of transitive private dependencies in modern cmake targets

• Bug Fix: Missing quotes in CMake macro for modern cmake targets

• Bug Fix: Handling LINK_FLAGS in cmake modern targets

• Bug Fix: Environment variables no propagating to test project with test_package command

0.18.0 (3-January-2017)

• Feature: uploads and downloads with retries on failures. This helps to avoid having to fully rebuild on CI when a network transfer fails

• Feature: added SCons generator

• Feature: support for Python 3.6, with several fixes. Added Python 3.6 to CI.

• Feature: show package dates in conan info command

• Feature: new cmake_multi generator for multi-configuration IDEs like Visual Studio and Xcode

• Feature: support for Visual Studio 2017, VS-15

• Feature: FreeBSD now passes test suite

• Feature: conan upload showing error messages or URL of remote

• Feature: wildcard or pattern upload. Useful to upload multiple packages to a remote.

• Feature: allow defining settings as environment variables. Useful for use cases like dockerized builds.

• Feature: improved help`` messages

• Feature: cmake helper tools to launch conan directly from cmake

• Added code coverage for code repository

• Fix: conan.io badges when containing dash

• Fix: manifests errors due to generated .pyc files

• Bug Fix: unicode error messages crashes

• Bug Fix: duplicated build of same binary package for private dependencies

• Bug Fix: duplicated requirement if using version-ranges and requirements() method.

0.17.2 (21-December-2016)

• Bug Fix: ConfigureEnvironment helper ignoring libcxx setting. #791

0.17.1 (15-December-2016)

• Bug Fix: conan install –all generating corrupted packages. Thanks to @yogeva

• Improved case sensitive folder management.

• Fix: appveyor links in README.

0.17.0 (13-December-2016)

• Feature: support for modern cmake with cmake INTERFACE IMPORTED targets defined per package

• Feature: support for more advanced queries in search.

• Feature: new profile list|show command, able to list or show details of profiles

• Feature: adding preliminary support for FreeBSD

• Feature: added new description field, to document package contents.

• Feature: generation of imports manifest and conan imports --undo functionality to remove imported files

• Feature: optional SSL certificate verification for remotes, to allow self signed certificates

• Feature: allowing custom paths in profiles, so profiles can be easily shared in teams, just inside the source repository or elsewhere.

• Feature: fields user and channel now available in conan recipes. That allows to declare requirements for the same user/channel as the current package.

• Feature: improved conan.io package web, adding description.

• Fix: allow to modify cmake generator in CMake helper class.

• Fix: added strip parameter to tools.patch() utility

• Fix: removed unused dependency to Boto

• Fix: wrong line endings in Windows for conan.conf

• Fix: proper automatic use of txt and env generators in test_package

• Bug fix: solved problem when uploading python packages that generated .pyc at execution

• Bug fix: crash when duplicate requires were declared in conanfile

• Bug fix: crash with existing imported files with symlinks

• Bug fix: options missing in “copy install command to clipboard” in web

0.16.1 (05-December-2016)

• Solved bug with test_package with arguments, like scopes.

0.16.0 (19-November-2016)

Upgrade: The build=outdated`` feature had a change in the hash computation, it might report outdated binaries from recipes. You can re-build the binaries or ignore it (if you haven’t changed your recipes without re-generating binaries)

• Feature: version ranges. Conan now supports defining requirements with version range expressions like Pkg/[>1.2,<1.9||1.0.1]@user/channel. Check the version ranges reference for details

• Feature: decoupled imports from normal install. Now conan install --no-imports skips the imports section.

• Feature: new conan imports command that will execute the imports section without running install

• Feature: overriding settings per package. Now it is possible to specify individual settings for each package. This can be specified both in the command line and in profiles

• Feature: environment variables definition in the command line, global and per package. This allows to define specific environment variables as the compiler (CC, CXX) for a specific package. These environment variables can also be defined in profiles. Check profiles reference

• Feature: Now conan files copies handle symlinks, so files are not duplicated. This will save some space and improve download speed in some large packages. To enable it, use self.copy(..., links=True)

• Fix: Enabling correct use of MSYS in Windows, by using the Windows C:/... path instead of the MSYS ones

• Fix: Several fixes in conan search, both local and in remotes

• Fix: Manifests line endings and order fix, and hash computation fixed (it had wrong ordering)

• Fix: Removed http->https redirection in conan_server that produced some issues for SSL reversed proxies

• Fix: Taking into account “ANY” definition of settings and options

• Fix: Improved some error messages and failures to encode OS errors with unicode characters

• Update: added new arch ppc64 to default settings

• Update: updated python-requests library version

• Fix: Using generator() instead of compiler to decide on cmake multi-configuration for Ninja+cl builds

• Improved and completed documentation

0.15.0 (08-November-2016)

Upgrade: If you were using the short_paths feature in Windows for packages with long paths, please reset your local cache. You could manually remove packages or just run conan remove "*"

• Feature: New build=outdated`` functionality, that allows to build the binary packages for those dependencies whose recipe has been changed, or if the binary is not existing. Each binary package stores a hash of the recipe to know if they have to be regenerated (are outdated). This information is also provided in the conan search <ref>` command. Useful for package creators and CI.

• Feature: Extended the short_paths feature for Windows path limit to the package folder, so package with very long paths, typically in headers in nested folder hierarchies are supported.

• Feature: New tool.build_sln_command() helper to build() Microsoft Visual Studio solution (.sln) projects

• Feature: Extended the source and package command, so together with build they can be fully executed in a user folder, as a convenience for package creation and testing.

• Feature: Extending the scope of tools.pythonpath to work in local commands too

• Improved the parsing of profiles and better error messages

• Not adding -s compiler flag for clang, as it doesn’t use it.

• Automatic generation of conanenv.txt in local cache, warnings if using local commands and no conanbuildinfo.txt and no conanenv.txt are present to cache the information form install

• Fix: Fixed bug when using empty initial requirements (requires = "")

• Fix: Added glob hidden import to pyinstaller

• Fix: Fixed minor bugs with short_paths as local search not listing packages

• Fix: Fixed problem with virtual envs in Windows with paths separator (using / instead of )

• Fix: Fixed parsing of conanbuildinfo.txt, so the root folder for each dependency is available in local commands too

• Fix: Fixed bug in test_package with the test project using the requirements() method.

0.14.1 (20-October-2016)

• Fixed bug with short_paths feature in windows.

• Improved error messages for non-valid profile test files.

• Remove downloaded tgz package files from remotes after decompress them.

• Fixes bug with install –all and short_paths

0.14.0 (20-October-2016)

• Feature: Added profiles, as user predefined settings and environment variables (as CC and CXX for compiler paths). They are stored in files in the conan cache, so they can be easily edited, added, and shared. Use them with conan install --profile=name

• Feature: short_paths feature for Windows now also handle long paths for the final package, in case that a user library has a very long final name, with nested subfolders.

• Feature: Added tools.cpu_count() as a helper to retrieve the number of cores, so it can be used in concurrent builds

• Feature: Detects cycles in the dependency graph, and raise error instead of exhausting recursion limits

• Feature: Conan learned the werror`` option that will raise error and stop installation under some cases treated as warnings otherwise: Duplicated dependencies, or dependencies conflicts

• Feature: New env generator that generates a text file with the environment variables defined by dependencies, so it can be stored. Such file is parsed by conan build to be able to use such environment variables for self.deps_env_info too, in the same way it uses the txt generator to load variables for self.deps_cpp_info.

• Fix: Do not print progress bars when output is a file

• Fix: Improved the local conan search, using options too in the query conan search -q option=value

• Fix: Boto dependency updated to 2.43.0 (necessary for ArchLinux)

• Fix: Simplified the conan package command, removing unused and confusing options, and more informative messages about errors and utility of this command.

• Fix: More fixes and improvements on ConfigureEnvironment, mainly for Windows

• Fix: Conan now does not generate a conanbuildinfo.txt file when doing conan install <PkgRef>.

• Bug fix: Files of a package recipe are “touched” to update their timestamps to current time when retrieved, otherwise some build systems as Ninja can have problems with them.

• Bug fix: qmake generator now uses quotes to handle paths with spaces

• Bug fix: Fixed OSInfo to return the short distro name instead of the long one.

• Bug fix: fixed transitivity of private dependencies

0.13.3 (13-October-2016)

This minor solves some problems with ConfigureEnvironment, mainly for Windows, but also fixes other things:

• Fixed concatenation problems in Windows for several environment variables. Fixed problems with path with spaces

• A batch file is created in Windows to be called, as if defined structures doesn’t seem to work in the command line.

• The vcvars_command from tools now checks the Visual Studio environment variable, if it is already set, it will check it with the current project settings, throwing an error if not matching, returning an empty command if matches.

• Added a compile_flags property to ConfigureEnvironment, to be passed in the command line to the compiler, but not as environment variables

• Added defines to environment for nix systems, it was not being handled before

• Added new tests, compiling simple projects and diamond dependencies with cmake, cl (msvc), gcc (gcc in linux, mingw in win) and clang (OSX), for a better coverage of the ConfigureEnvironment functionality.

• Fixed wrong CPP_INCLUDE_PATH, it is now CPLUS_INCLUDE_PATH

0.13.0 (03-October-2016)

IMPORTANT UPGRADE ISSUE: There was a small error in the computation of binary packages IDs, that has been addressed by conan 0.13. It affects to third level (and higher) binary packages, i.e. A and B in A->B->C->D, which binaries must be regenerated for the new hashes. If you don’t plan to provide support for older conan releases (<=0.12), which would be reasonable, you should remove all binaries first (conan remove -p, works both locally and remotely), then re-build your binaries.

Features:

• Streaming from/to disk for all uploads/downloads. Previously, this was done for memory, but conan started to have issues for huge packages (>many hundreds MBs), that sometimes could be alleviated using Python 64 bits distros. This issues should be alleviated now

• New security system that allows capturing and checking the package recipes and binaries manifests into user folders (project or any other folder). That ensures that packages cannot be replaced, hacked, forged, changed or wrongly edited, either locally or in any remote server, without notice.

• Possible to handle and reuse python code in recipes. Actually, conan can be used as a package manager for python, by adding the package path to env_info.PYTHONPATH. Useful if you want to reuse common python code between different package recipes.

• Avoiding re-compress the tgz for packages after uploads if it didn’t change.

• New command conan source that executes the source() method of a given conanfile. Very useful for CI, if desired to run in parallel the construction of different binaries.

• New propagation of cpp_info, so it now allows for capturing binary packages libraries with new collect_libs() helper, and access to created binaries to compute the package_info() in general.

• Command test_package now allows the update`` option, to automatically update dependencies.

• Added new architectures for ppc64le and detection for AArch64

• New methods for defining requires effect over binary packages ID (hash) in conan_info()

• Many bugs fixes: error in tools.download with python 3, restore correct prompt in virtualenvs, bug if removing an option in config_options(), setup.py bug…

This release has contributions from @tru, @raulbocanegra, @tivek, @mathieu, and the feedback of many other conan users, thanks very much to all of them!

0.12.0 (13-September-2016)

• Major changes to search api and commands. Decoupled the search of package recipes, from the search of binary packages.

• Fixed bug that didn’t allow to export or upload packages with settings restrictions if the restrictions didn’t match the host settings

• Allowing disabling color output with CONAN_COLOR_DISPLAY=0 environment variable, or to configure color schema for light console backgrounds with CONAN_COLOR_DARK=1 environment variable

• Imports can use absolute paths, and files copied from local conan cache to those paths will not be removed when conan install. Can be used as a way to install machine-wise things (outside conan local cache)

• More robust handling of failing transfers (network disconnect), and inconsistent status after such

• Large internal refactor for storage managers. Improved implementations and decoupling between server and client

• Fixed slow conan remove for caches with many packages due to slow deletion of empty folders

• Always allowing explicit options scopes, - o Package:option=value as well as the implicit -o option=value for current Package, for consistency

• Fixed some bugs in client-server auth process.

• Allow to extract .tar files in tools.unzip()

• Some helpers for conan_info(), as self.info.requires.clear() and removal of settings and options

0.11.1 (31-August-2016)

• New error reporting for failures in conanfiles, including line number and offending line, much easier for package creators

• Removed message requesting to create an account in conan.io for other remotes

• Removed localhost:9300 remote that was added by default mostly for demo purposes. Clarified in docs.

• Fixed usernames case-sensitivity in conan_server, due to ConfigParser it was forcing lowercase

• Handling unicode characters in remote responses, fixed crash

• Added new compilers gcc 6.2, clang 8.0 to the default settings.yml

• Bumped cryptography, boto and other conan dependencies, mostly for ArchLinux compatibility and new OSX security changes

0.11.0 (3-August-2016)

• New solution for the path length limit in Windows, more robust and complete. Package conanfile.py just have to declare an attribute short_paths=True and everything will be managed. The old approach is deprecated and totally removed, so no shorts_paths.conf file is necessary. It should fix also the issues with uploads/retrievals.

• New virtualenv generator that generates activate and deactivate scripts that set environment variables in the current shell. It is very useful, for example to install tools (like CMake, MinGW) with conan packages, so multiple versions can be installed in the same machine, and switch between them just by activating such virtual environments. Packages for MinGW and CMake are already available as a demo

• ConfigureEnvironment takes into account environment variables, defined in packages in new env_info, which is similar to cpp_info but for environment information (like paths).

• New per-package build_policy, which can be set to always or missing, so it is not necessary to create packages or specify the build`` parameter in command line. Useful for example in header only libraries or to create packages that always get the latest code from a branch in a github repository.

• Command conan test_package` now executes by default a conan export with smarter package reference deduction. It is introduced as opt-out behavior.

• Conan :command`export` command avoids copying test_package/build temporary files in case of export=*

• Now, package_info() allows absolute paths in includedir, libdirs and bindirs, so wrapper packages can be defined that use system or manually installed libraries.

• LDFLAGS in ConfigureEnvironment management of OSX frameworks.

• Options allow the ANY value, so such option would accept any value. For example a commit of a git repository, useful to create packages that can build any specific commit of a git repo.

• Added gcc 5.4 to the default settings, as well as MinGW options (Exceptions, threads…)

• Command conan info learned a new option to output the packages from a project dependency tree that should be rebuilt in case of a modification of a certain package. It outputs a machine readable ordered list of packages to be built in that order. Useful for CI systems.

• Better management of incomplete, dirty or failed source directories (e.g. in case of a user interrupting with Ctrl+C a git clone inside the source() method.

• Added tools for easier detection of different OS versions and distributions, as well as command wrappers to install system packages (apt, yum). They use sudo via a new environment variable CONAN_SYSREQUIRES_SUDO, so using sudo is opt-in/out, for users with different sudo needs. Useful for system_requirements()

• Deprecated the config() method (still works, for backwards compatibility), but has been replaced by a config_options() to modify options based on settings, and a configure() method for most use cases. This removes a nasty behavior of having the config() method called twice with side effects.

• Now, running a conan install MyLib/0.1@user/channel to directly install packages without any consuming project, is also able to generate files with the -g option. Useful for installing tool packages (MinGW, CMake) and generate virtualenvs.

• Many small fixes and improvements: detect compiler bug in Py3, search was crashing for remotes, conan new failed if the package name had a dash, etc.

• Improved some internal duplications of code, refactored many tests.

This has been a big release. Practically 100% of the released features are thanks to active users feedback and contributions. Thanks very much again to all of them!

0.10.0 (29-June-2016)

• conan new command, that creates conan package conanfile.py templates, with a test_package package test (-t option), also for header only packages (-i option)

• Definition of scopes. There is a default dev scope for the user project, but any other scope (test, profile…) can be defined and used in packages. They can be used to fire extra processes (as running tests), but they do not affect the package binaries, and are not included in the package IDs (hash).

• Definition of dev_requires. Those are requirements that are only retrieved when the package is in dev scope, otherwise they are not. They do not affect the binary packages. Typical use cases would be test libraries or build scripts.

• Allow shorter paths for specific packages, which can be necessary to build packages with very long path names (e.g. Qt) in Windows.

• Support for bzip2 and gzip decompression in tools

• Added package_folder attribute to conanfile, so the package() method can for example call cmake install to create the package.

• Added CONAN_CMAKE_GENERATOR environment variable that allows to override the CMake default generator. That can be useful to build with Ninja instead of the default Unix Makefiles

• Improved ConfigureEnvironment with include paths in CFLAGS and CPPFLAGS, and fixed bug.

• New conan user --clean option, to completely remove all user data for all remotes.

• Allowed to raise Exceptions in config() method, so it is easier for package creators to raise under non-supported configurations

• Fixed many small bugs and other small improvements

As always, thanks very much to all contributors and users providing feedback.

0.9.2 (11-May-2016)

• Fixed download bug that made it specially slow to download, even crash. Thanks to github @melmdk for fixing it.

• Fixed cmake check of CLang, it was being skipped

• Improved performance. Check for updates has been removed from install, made it opt-in in conan info command, as it was very slow, seriously affecting performance of large projects.

• Improved internal representation of graph, also improves performance for large projects.

• Fixed bug in conan install --update.

0.9 (3-May-2016)

• Python 3 “experimental” support. Now the main conan codebase is Python 2 and 3 compatible. Python 2 still the reference platform, Python 3 stable support in next releases.

• Create and share your own custom generators for any build system or tool. With “generator packages”, you can write a generator just as any other package, upload it, modify and version it, etc. Require them by reference, as any other package, and pull it into your projects dynamically.

• Premake4 initial experimental support via a generator package.

• Very large re-write of the documentation. New “creating packages” sections with in-source and out-source explicit examples. Please read it! :)

• Improved conan test. Renamed test to test_package both for the command and the folder, but backwards compatibility remains. Custom folder name also possible. Adapted test layout might require minor changes to your package test, automatic warnings added for your convenience.

• Upgraded pyinstaller to generate binary OS installers from 2.X to 3.1

• conan search now has command line options:, less verbose, verbose, extra verbose

• Added variable with full list of dependencies in conanbuildinfo.cmake

• Several minor bugfixes (check github issues)

• Improved conan user to manage user login to multiple remotes

0.8.4 (28-Mar-2016)

• Fixed linker problems with the new apple-clang 7.3 due to libraries with no timestamp set.

• Added apple-clang 7.3 to default settings

• Fixed default libcxx for apple-clang in auto detection of base conan.conf

0.8 (15-Mar-2016)

• New conan remote command to manage remotes. Redesigned remotes architecture, now allows to work with several remotes in a more consistent, powerful and “git-like” way. New remotes registry keeps track of the remote of every installed package, and this information is shown in conan info command too. Also, it keeps different user logins for different remotes, to improve support in corporate environments running in-house servers.

• New update functionality. Now it is possible to conan install --update to update packages that became obsolete because new ones were uploaded to the corresponding remote. Conan commands as install and info show information about the status of the local packages compared with the remote ones. In this way, using latest versions during development is much more natural.

• Added new compiler.libcxx setting in order to support the different c++ standard libraries. It can take libstdc++, libstdc++11 or libc++ values to take into account different standard libraries for modern gcc and clang compilers. It is also possible to remove not needed settings, like this one in pure C projects, with the new syntax: del self.settings.compiler.libcxx

• Conan virtual environment: Define a custom conan directory with CONAN_USER_HOME env variable, and have a per project or per workspace storage for your dependencies. So you can isolate your dependencies and even bundle them within your project, by just setting the CONAN_USER_HOME variable to your <project>/deps folder, for example. This also improves support for continuous integration CI systems, in which many builds from different users could be run in parallel.

• Better conanfile download method. More stable and now checks (opt-out) the ssl certificates.

• Lots of improvements: Increased library name length limit, Improved and cleaner output messages.

• Fixed several minor bugs: removing empty folders, case sensitive exports, arm settings detection.

• Introduced the concept of “package recipe” that refers to conanfile.py and exported files.

• Improved settings display in web, with new “copy install command to clipboard” to assist in installing packages discovered in web.

• The macOS installer, problematic with latest macOS releases, has been deprecated in favor of homebrew and pip install procedures.

0.7 (5-Feb-2016)

• Custom conanfile names are allowed for developing. With file`` option you can define the file you want to use, allowing for .conaninfo.txt or having multiple conanfile_dev.py, conanfile_test.py besides the standard conanfile.py which is used for sharing the package. Inheritance is allowed, e.g. conanfile_dev.py might extend/inherit from conanfile.py.

• New conan copy command that can be used to copy/rename packages, promote them between channels, forking other users packages.

• New all`` and package`` options for conan install that allows to download one, several, or all package configurations for a given reference.

• Added patch() tool to easily patch sources if necessary.

• New qmake and qbs generators

• Upload of conanfile exported files is also tgz’d, allowing fast upload/downloads of full sources if desired, avoiding retrieval of sources from externals sources.

• conan info command improved showing info of current project too

• Output of run() can be redirected to buffer string for processing, or even removed.

• Added proxy configuration to conan.conf for users behinds proxies.

• Large improvements in commands output, prefixed with package reference, and much clear.

• Updated settings for more versions of gcc and new arm architectures

• Treat dependencies includes as SYSTEM in cmake, so no warnings are raised

• Deleting source folder after conan export so no manual removal is needed

• Normalizing to CRLF generated user files in Win

• Better detection and checks for compilers as VS, apple-clang

• Fixed CMAKE_SHARED_LINKER_FLAGS typo in cmake files

• Large internal refactor in generators

0.6 (11-Jan-2016)

• New cmake variables in cmake generator to make FindPackage work better thanks to the underlaying FindLibrary. Now many FindXXX.cmake work “as-is” and the package creator does not have to create a custom override, and consumers can use packages transparently with the originals FindXXX.cmakes

• New “conan info” command that shows the full dependency graph and details (license, author, url, dependants, dependencies) for each dependency.

• New environment helper with a ConfigureEnvironment class, that is able to translate conan information to autotools configure environment definition

• Relative importing from conanfiles now is possible. So if you have common functionality between different packages, you can reuse those python files by importing them from the conanfile.py. Note that export=”…” might be necessary, as packages as to be self-contained.

• Added YouCompleteMe generator for vim auto-completion of dependencies.

• New “conanfile_directory” property that points to the file in which the conanfile.py is located. This helps if using the conanfile.py “build” method to build your own project as a project, not a package, to be able to use any workflow, out-of-source builds, etc.

• Many edits and improvements in help, docs, output messages for many commands.

• All cmake syntax in modern lowercase

• Fixed several minor bugs: gcc detection failure when gcc not installed, missing import, copying source->build failing when symlinks

0.5 (18-Dec-2015)

• New cmake functionality allows package creators to provide cmake finders, so that package consumers can use their CMakeLists.txt with typical FindXXX.cmake files, without any change to them. CMake CONAN_CMAKE_MODULES_PATH added, so that package creators can provide any additional cmake scripts for consumers.

• Now it is possible to generate out-of-source and multiple configuration installations for the same project, so you can switch between them without having to conan install again. Check the new workflows

• New qmake generator (thanks @dragly)

• Improved removal/deletion of folders with shutil.rmtree, so conan remove commands and other processes requiring deletion of folders do not fail due to permissions and require manual deletion. This is an improvement, especially in Win.

• Created pip package, so conan can be installed via: pip install conan

• Released pyinstaller code for the creation of binaries from conan python source code. Distros package creators can create packages for the conan apps easily from those binaries.

• Added md5, sha1, sha256 helpers in tools, so external downloads from conanfile.py files source() can be checked.

• Added latest gcc versions to default settings.yml

• Added CI support for conan development: travis-ci, appveyor

• Improved human-readability for download progress, help messages.

• Minor bug fixes