Bazel client, Windows: implement AsWindowsPath

This method converts MSYS paths to Windows path.
It uses the BAZEL_SH envvar to obtain the MSYS
root directory, to which all Unix paths (except
for mounts) are relative.

We cannot handle mounts because we don't want to
read /etc/mtab every time there's a file operation
so we simply apply a heuristic similar to
https://github.com/bazelbuild/bazel/blob/cd4cc09fa6ef96380a3d0888f825dfd1dbada651/src/main/java/com/google/devtools/build/lib/vfs/WindowsFileSystem.java#L52-L63

Also clean up the #ifdefs surrounding SyncFile.

See https://github.com/bazelbuild/bazel/issues/2107

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PiperOrigin-RevId: 142531986
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tree: 717f4d9ba8e430f7289e3e0dd8fed350f48879c5
  1. examples/
  2. scripts/
  3. site/
  4. src/
  5. third_party/
  6. tools/
  7. .gitattributes
  8. .gitignore
  9. AUTHORS
  10. BUILD
  11. CHANGELOG.md
  12. combine_distfiles.sh
  13. compile.sh
  14. CONTRIBUTING.md
  15. CONTRIBUTORS
  16. ISSUE_TEMPLATE.md
  17. LICENSE.txt
  18. README.md
  19. WORKSPACE
README.md

Bazel (Beta)

{Fast, Correct} - Choose two

Bazel is a build tool that builds code quickly and reliably. It is used to build the majority of Google‘s software, and thus it has been designed to handle build problems present in Google’s development environment, including:

  • A massive, shared code repository, in which all software is built from source. Bazel has been built for speed, using both caching and parallelism to achieve this. Bazel is critical to Google's ability to continue to scale its software development practices as the company grows.

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