Windows: fix bootstrapping bugs with 0.4.4 

Fix 3 bugs to get bootstrapping working on Windows
after it was broken in bazel-0.4.4:

* Move the definition of PATHSEP to before the
code that overrides it for Windows

* Fix the Java code processing the --javahome flag
to recognize absolute Windows paths as absolute.
See: https://github.com/bazelbuild/bazel/issues/2520

* Do not propagate the JAVA_HOME value in
variables, because it contains spaces on Windows,
and when we pass the variable to Bazel, and it's
expanded to e.g. ... --foo=C:/Program Files,
these are interpreted as two args instead of one.

Also fix a bug that is just annoying, not causing
any trouble (on Windows):

* Silently swallow errors from the "rm -rf" in the
atexit functions

Also do some refactoring:

* Rename a variable (BAZEL_ARGS) and a method to
indicate they're private. They are not used from
anywhere else as far as I know -- no occurrences
in either the bazel or the continuous-integration
repos.

Fixes: https://github.com/bazelbuild/bazel/issues/2473

--
Change-Id: I309752cd7bbff0b5dd683ddb5573f3061350043c
Reviewed-on: https://cr.bazel.build/8797
PiperOrigin-RevId: 147345194
MOS_MIGRATED_REVID=147345194
3 files changed
tree: 4992c7dc223b6255bc002648f047b70844b22677
  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:

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