)]}'
{
  "commit": "b8f16458c1d785a24921e569cc6174e8e3f6b45e",
  "tree": "16bde246b8e6e39a11619c4ad6bc6355f45506f4",
  "parents": [
    "4082693e23ec9615f3e9b2ed9fae542e2b3bed12"
  ],
  "author": {
    "name": "Richard Levasseur",
    "email": "rlevasseur@google.com",
    "time": "Sat Jul 08 09:58:12 2023 -0700"
  },
  "committer": {
    "name": "GitHub",
    "email": "noreply@github.com",
    "time": "Sat Jul 08 16:58:12 2023 +0000"
  },
  "message": "feat: Expose Python C headers through the toolchain. (#1287)\n\nThis allows getting a build\u0027s `cc_library` of Python headers through\ntoolchain resolution instead of having to use the underlying toolchain\u0027s\nrepository `:python_headers` target directly.\n\nWithout this feature, it\u0027s not possible to reliably and correctly get\nthe C information about the runtime a build is going to use. Existing\nsolutions require carefully setting up repo names, external state,\nand/or using specific build rules. In comparison, with this feature,\nconsumers are able to simply ask for the current headers via a helper\ntarget or manually lookup the toolchain and pull the relevant\ninformation; toolchain resolution handles finding the correct headers.\n\nThe basic way this works is by registering a second toolchain to carry\nC/C++ related information; as such, it is named `py_cc_toolchain`. The\npy cc toolchain has the same constraint settings as the regular py\ntoolchain; an expected invariant is that there is a 1:1 correspondence\nbetween the two. This base functionality allows a consuming rule\nimplementation to use toolchain resolution to find the Python C\ntoolchain information.\n\nUsually what downstream consumers need are the headers to feed into\nanother `cc_library` (or equivalent) target, so, rather than have every\nproject re-implement the same \"lookup and forward cc_library info\"\nlogic,\nthis is provided by the `//python/cc:current_py_cc_headers` target.\nTargets that need the headers can then depend on that target as if it\nwas a `cc_library` target.\n\nWork towards https://github.com/bazelbuild/rules_python/issues/824",
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