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avoid directories for cargo build dependencies

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We are facing peculiar Windows-only regressions in build times in
https://bugzilla.mozilla.org/show_bug.cgi?id=1506511 and while the build
times might just be Windows being slow, putting directories in
`rerun-if-changed` might also be causing problems.  The build only
depends on the files, anyway, so let's just say that.
This commit is contained in:
Nathan Froyd
2019-01-22 15:58:22 -05:00
committed by Dan Gohman
parent 06a072ead0
commit 363eea6960
1 changed files with 4 additions and 15 deletions
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19
lib/codegen/meta-python/gen_build_deps.py
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@@ -22,22 +22,11 @@ except ImportError:
pass
def source_files(top):
# type: (str) -> Iterable[str]
"""
Recursively find all interesting source files and directories in the
directory tree starting at top. Yield a path to each file.
"""
for (dirpath, dirnames, filenames) in os.walk(top):
yield dirpath
for f in filenames:
if f.endswith('.py'):
yield join(dirpath, f)
def generate():
# type: () -> None
print("Dependencies from meta language directory:")
meta = dirname(abspath(__file__))
for path in source_files(meta):
print("cargo:rerun-if-changed=" + path)
for (dirpath, _, filenames) in os.walk(meta):
for f in filenames:
if f.endswith('.py'):
print("cargo:rerun-if-changed=" + join(dirpath, f))