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NEWS.md

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News

March 2021:

These rules are now maintained by the community.

Note: After this release we will be bumping the minimum tested version to 4.0.0.

  • Added repository rules for downloading prebuilt versions of cmake and ninja rather than relying on system installed tools.

  • Added native ninja build rule

  • Now builds under the Bazel sandbox rather than in /tmp

  • Tidied up the structure of the examples directory

  • Deprecated the old rules install_ws_dependency and cc_configure_make

  • Autogenerated documentation was added

March 2019:

  • Support for versions earlier than 0.22 was removed.

  • Tests on Bazel CI are running in the nested workspace

January 2019:

  • Bazel 0.22.0 is released, no flags are needed for this version, but it does not work on Windows (Bazel C++ API is broken).

  • Support for versions earlier than 0.20 was removed.

  • rules_foreign_cc take-aways describing the recent work has been published.

  • Examples package became the separate workspace. This also allows to illustrate how to initialize rules_foreign_cc.

  • Native tools (cmake, ninja) toolchains were introduced. Though the user code does not have to be changed (default toolchains are registered, they call the preinstalled binaries by name.), you may simplify usage of ninja with the cmake_external rule and call it just by name. Please see examples/cmake_nghttp2 for ninja usage, and WORKSPACE and BUILD files in examples for the native tools toolchains usage (the locally preinstalled tools are registered by default, the build as part of the build tools are used in examples). Also, in examples/with_prebuilt_ninja_artefact you can see how to download and use prebuilt artifact.

  • Shell script parts were extracted into a separate toolchain. Shell script inside framework.bzl is first created with special notations:

    • export var_name=var_value for defining the environment variable
    • $$var_name$$ for referencing environment variable
    • `shell_command <space-separated-maybe-quoted-arguments>` for calling shell fragment

    The created script is further processed to get the real shell script with shell parts either replaced with actual fragments or with shell function calls (functions are added into the beginning of the script). Extracted shell fragments are described in commands.bzl.

    Further planned steps in this direction: testing with RBE, shell script fragments for running on Windows without msys/mingw, tests for shell fragments.