$ conan export-pkg [-h] [-bf BUILD_FOLDER] [-e ENV] [-f] [-if INSTALL_FOLDER] [-o OPTIONS] [-pr PROFILE] [-pf PACKAGE_FOLDER] [-s SETTINGS] [-sf SOURCE_FOLDER] [-j JSON] path reference
Exports a recipe, then creates a package from local source and build folders.
If ‘–package-folder’ is provided it will copy the files from there, otherwise it will execute package() method over ‘–source-folder’ and ‘–build-folder’ to create the binary package.
positional arguments: path Path to a folder containing a conanfile.py or to a recipe file e.g., my_folder/conanfile.py reference user/channel or pkg/version@user/channel (if name and version are not declared in the conanfile.py) optional arguments: -h, --help show this help message and exit -bf BUILD_FOLDER, --build-folder BUILD_FOLDER Directory for the build process. Defaulted to the current directory. A relative path to current directory can also be specified -e ENV, --env ENV Environment variables that will be set during the package build, -e CXX=/usr/bin/clang++ -f, --force Overwrite existing package if existing -if INSTALL_FOLDER, --install-folder INSTALL_FOLDER Directory containing the conaninfo.txt and conanbuildinfo.txt files (from previous 'conan install'). Defaulted to --build-folder If these files are found in the specified folder and any of '-e', '-o', '-pr' or '-s' arguments are used, it will raise an error. -o OPTIONS, --options OPTIONS Define options values, e.g., -o pkg:with_qt=true -pr PROFILE, --profile PROFILE Profile for this package -pf PACKAGE_FOLDER, --package-folder PACKAGE_FOLDER folder containing a locally created package. If a value is given, it won't call the recipe 'package()' method, and will run a copy of the provided folder. -s SETTINGS, --settings SETTINGS Define settings values, e.g., -s compiler=gcc -sf SOURCE_FOLDER, --source-folder SOURCE_FOLDER Directory containing the sources. Defaulted to the conanfile's directory. A relative path to current directory can also be specified -j JSON, --json JSON Path to a json file where the install information will be written
The export-pkg command let you create a package from already existing files in your working folder, it can be useful if you are using a build process external to Conan and do not want to provide it with the recipe. Nevertheless, you should take into account that it will generate a package and Conan won’t be able to guarantee its reproducibility or regenerate it again. This is not the normal or recommended flow for creating Conan packages.
Execution of this command will result in several files copied to the package
folder in the cache identified by its
package_id (Conan will perform all the
required actions to compute this _id_: build the graph, evaluate the requirements and
options, and call any required method), but there could be two
different sources for the files:
- If the argument
--package-folderis provided, Conan will just copy all the contents of that folder to the package one in the cache.
- If no
--package-folderis given, Conan will execute the method
package()once and the
self.copy(...)functions will copy matching files from the
build_folderto the corresponding path in the Conan cache (working directory corresponds to the
There are different scenarios where this command could look like useful:
- You are working locally on a package and you want to upload it to the cache to be able to consume it from other recipes. In this situation you can use the export-pkg command to copy the package to the cache, but you could also put the package in editable mode and avoid this extra step.
- You only have precompiled binaries available, then you can use the export-pkg to create the Conan package, or you can build a working recipe to download and package them. These scenarios are described in the documentation section How to package existing binaries.
Note that if --profile, settings or options are not provided to export-pkg, the configuration will be extracted from the information stored after a previous conan install. That information might be incomplete in some edge cases, so we strongly recommend the usage of --profile or --settings, --options, etc.
Create a package from a directory containing the binaries for Windows/x86/Release:
We need to collect all the files from the local filesystem and tell Conan to compute the proper
package_idso its get associated with the correct settings and it works when consuming it.
If the files in the working folder are:
Release_x86/lib/libmycoollib.a Release_x86/lib/other.a Release_x86/include/mylib.h Release_x86/include/other.h
then, just run:
$ conan new Hello/0.1 --bare # It creates a minimum recipe example $ conan export-pkg . Hello/0.1@user/stable -s os=Windows -s arch=x86 -s build_type=Release --package-folder=Release_x86
This last command will copy all the contents from the
package-folderand create the package associated with the settings provided through the command line.
Create a package from a source and build folder:
The objective is to collect the files that will be part of the package from the source folder (include files) and from the build folder (libraries), so, if these are the files in the working folder:
sources/include/mylib.h sources/src/file.cpp build/lib/mylib.lib build/lib/mylib.tmp build/file.obj
we would need a slightly more complicated conanfile.py than in the previous example to select which files to copy, we need to change the patterns in the
def package(self): self.copy("*.h", dst="include", src="include") self.copy("*.lib", dst="lib", keep_path=False)
Now, we can run Conan to create the package:
$ conan export-pkg . Hello/0.1@user/stable -pr=myprofile --source-folder=sources --build-folder=build