Conan 1.29: Updates to multiple generators, new tools.rename function, experimental toolchain for gnu make, lockfile bug fixes
Conan 1.29 has been released. This release doesn’t contain any major new features, but instead brings more completeness and quality to existing features.
Updates to Generators
Some of the newer
cpp_info properties have now been added to both the
Qbs generators, including
cpp_info.frameworks. Additionally, the
generator learned how to generate the
user_info data from the build context.
cmake_find_package_multi both had some bugs in
the previous release surrounding the new
filenames attribute of
Also, there was a bug in the
cmake_multi generator in which it was producing
cmake files which were failing under valid conditions. These have all been
New tools.rename Function
On Windows, many users have reported an intermittant problem with python’s
os.rename function when used in some
conanfile.py contexts. Sometimes the
function will fail simply with a permission error. Numerous workarounds have
been offerred, but in this release we’ve merged a new tools function called
tools.rename which uses a more robust mechanism to avoid these errors.
Experimental Toolchain for Gnu Make
Continuing our work on Conan’s new toolchain strategy, this release contains a
toolchain class for the
Gnu Make build system. Like the existing
toolchain which had been added previously, this new toolchain class
.mak files for the
Gnu Make build system which contain all the
relevant build-related variables from Conan. To clarify, this does NOT include
variables related to dependencies: this is still the domain of generators.
Lockfile Bug Fixes
We have also continued to evolve and improve the experience around Lockfiles. In
this release, we fixed one bug where some package’s were erroneously marked as
modified, and another bug where
Package_ID_Unknown were not being updated
correctly. We’ve also added a more helpful message when users try to compute
build_order of a graph from a “base” lockfile (which isn’t possible). Now
the output should be much more helpful.
Besides the items listed above, there were some minor bug fixes you may wish to read about. If so, please refer to the changelog for the complete list.
We hope you enjoy this release, and look forward to your feedback.