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lyxpak: Fix the common path prefix calculation.

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The old implementation could fail in some rare cases.
This commit is contained in:
Guy Rutenberg 2015-06-26 18:35:52 +03:00 committed by Enrico Forestieri
parent 8a772549d7
commit ca0ba7c6ad
1 changed files with 3 additions and 4 deletions
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7
lib/scripts/lyxpak.py
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@ -298,10 +298,9 @@ def main(args):
# Find the topmost dir common to all files
if len(incfiles) > 1:
topdir = os.path.commonprefix(incfiles)
# Check whether topdir is valid, as os.path.commonprefix() works on
# a character by character basis, rather than on path elements.
if not os.path.exists(topdir):
topdir = os.path.dirname(topdir) + os.path.sep
# As os.path.commonprefix() works on a character by character basis,
# rather than on path elements, we need to remove any trailing bytes.
topdir = topdir.rpartition(os.path.sep)[0] + os.path.sep
else:
topdir = os.path.dirname(incfiles[0]) + os.path.sep