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0.28.0 (26-October-2017)
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@lasote lasote released this 27 Oct 16:14
· 4631 commits to develop since this release
0.28.0
49e0605

0.28.0

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

Important!, see the "Breaking changes" at the end of the document.

  • 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 the 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 the 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

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 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.
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