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request-pull: quote regex metacharacters in local ref

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The local part of the third argument of git-request-pull is used in
a regular expression without quoting it.  Use qr{} and \Q\E to ensure
that e.g. a period in a tag name does not match any character on the
remote side.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Paolo Bonzini 2019-05-28 12:15:42 +02:00 committed by Junio C Hamano
parent aeb582a983
commit 5731dfce06
2 changed files with 20 additions and 3 deletions
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5
git-request-pull.sh
View file

@ -83,19 +83,18 @@ die "fatal: No commits in common between $base and $head"
# Otherwise find a random ref that matches $headrev.
find_matching_ref='
my ($head,$headrev) = (@ARGV);
my $pattern = qr{/\Q$head\E$};
my ($found);
while (<STDIN>) {
chomp;
my ($sha1, $ref, $deref) = /^(\S+)\s+([^^]+)(\S*)$/;
my ($pattern);
next unless ($sha1 eq $headrev);
$pattern="/$head\$";
if ($ref eq $head) {
$found = $ref;
}
if ($ref =~ /$pattern/) {
if ($ref =~ $pattern) {
$found = $ref;
}
if ($sha1 eq $head) {

18
t/t5150-request-pull.sh
View file

@ -246,4 +246,22 @@ test_expect_success 'request-pull ignores OPTIONS_KEEPDASHDASH poison' '
'
test_expect_success 'request-pull quotes regex metacharacters properly' '
rm -fr downstream.git &&
git init --bare downstream.git &&
(
cd local &&
git checkout initial &&
git merge --ff-only master &&
git tag -mrelease v2.0 &&
git push origin refs/tags/v2.0:refs/tags/v2-0 &&
test_must_fail git request-pull initial "$downstream_url" tags/v2.0 \
2>../err
) &&
grep "No match for commit .*" err &&
grep "Are you sure you pushed" err
'
test_done