58 lines
2.5 KiB
Markdown
58 lines
2.5 KiB
Markdown
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# News
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**March 2021:**
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These rules are now maintained by the community.
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_Note_: After this release we will be bumping the minimum tested version to _4.0.0_.
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- Added repository rules for downloading prebuilt versions of cmake and ninja
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rather than relying on system installed tools.
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- Added native ninja build rule
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- Now builds under the Bazel sandbox rather than in `/tmp`
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- Tidied up the structure of the examples directory
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- Deprecated the old rules `install_ws_dependency` and `cc_configure_make`
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- Autogenerated documentation was added
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**March 2019:**
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- Support for versions earlier than 0.22 was removed.
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- Tests on Bazel CI are running in the nested workspace
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**January 2019:**
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- 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).
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- Support for versions earlier than 0.20 was removed.
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- [rules_foreign_cc take-aways](https://docs.google.com/document/d/1ZVvzvkUVTkPCzI-2z4S4VrSNu4kdaBknz7UnK8vaoZU/edit?usp=sharing) describing the recent work has been published.
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- Examples package became the separate workspace.
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This also allows to illustrate how to initialize rules_foreign_cc.
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- Native tools (cmake, ninja) toolchains were introduced.
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Though the user code does not have to be changed (default toolchains are registered, they call the preinstalled binaries by name.),
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you may simplify usage of ninja with the cmake_external rule and call it just by name.
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Please see examples/cmake_nghttp2 for ninja usage, and WORKSPACE and BUILD files in examples for the native tools toolchains usage
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(the locally preinstalled tools are registered by default, the build as part of the build tools are used in examples).
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Also, in examples/with_prebuilt_ninja_artefact you can see how to download and use prebuilt artifact.
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- Shell script parts were extracted into a separate toolchain.
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Shell script inside framework.bzl is first created with special notations:
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- `export var_name=var_value` for defining the environment variable
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- `$$var_name$$` for referencing environment variable
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- `` `shell_command <space-separated-maybe-quoted-arguments>` `` for calling shell fragment
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The created script is further processed to get the real shell script with shell parts either
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replaced with actual fragments or with shell function calls (functions are added into the beginning of the script).
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Extracted shell fragments are described in commands.bzl.
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Further planned steps in this direction: testing with RBE, shell script fragments for running on Windows without msys/mingw,
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tests for shell fragments.
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