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Bug 1466574 - make generate_builtin_addons handle races better, r=ted

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MozReview-Commit-ID: D9irkni3gQv

--HG--
extra : rebase_source : 22ce8dd77b1d9f22c82fe58e6b8a515828cbb840
This commit is contained in:
Dan Mosedale 2018-05-31 09:56:20 -07:00
parent f8255e3bd2
commit 7514746d09
1 changed files with 7 additions and 1 deletions
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8
python/mozbuild/mozbuild/action/generate_builtin_addons.py
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@ -3,6 +3,7 @@
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from __future__ import absolute_import, print_function, unicode_literals
from mozbuild.util import ensureParentDir
import argparse
import json
@ -37,8 +38,13 @@ def main(argv):
if args.featuresdir:
listing["system"] = sorted(os.listdir(os.path.join(bindir,
args.featuresdir)))
if len(listing["system"]) == 0:
raise IOError("featuresdir is empty, we lost a race")
with open(os.path.join(bindir, args.outputfile), 'w') as fh:
outputfilepath = os.path.join(bindir, args.outputfile)
ensureParentDir(outputfilepath)
with open(outputfilepath, 'w') as fh:
json.dump(listing, fh, sort_keys=True)