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make the sample pre-commit hook script reject names with newlines, too 

The sample pre-commit hook script would fail to reject a file name like
"a\nb" because of the way newlines are handled in "$(...)".  Adjust the
test to count filtered bytes and require there be 0.  Also print all
diagnostics to standard error, not stdout, so they will actually be seen.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jim Meyering 2011-10-22 19:44:40 +02:00 committed by Junio C Hamano
parent c4c42f2cbd
commit c14daa4845
1 changed files with 6 additions and 2 deletions
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8
templates/hooks--pre-commit.sample
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@ -18,6 +18,9 @@ fi
# If you want to allow non-ascii filenames set this variable to true.
allownonascii=$(git config hooks.allownonascii)
# Redirect output to stderr.
exec 1>&2
# Cross platform projects tend to avoid non-ascii filenames; prevent
# them from being added to the repository. We exploit the fact that the
# printable range starts at the space character and ends with tilde.
@ -25,8 +28,8 @@ if [ "$allownonascii" != "true" ] &&
# Note that the use of brackets around a tr range is ok here, (it's
# even required, for portability to Solaris 10's /usr/bin/tr), since
# the square bracket bytes happen to fall in the designated range.
test "$(git diff --cached --name-only --diff-filter=A -z $against |
LC_ALL=C tr -d '[ -~]\0')"
test $(git diff --cached --name-only --diff-filter=A -z $against |
LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0
then
echo "Error: Attempt to add a non-ascii file name."
echo
@ -43,4 +46,5 @@ then
exit 1
fi
# If there are whitespace errors, print the offending file names and fail.
exec git diff-index --check --cached $against --