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cvsserver: Fix for histories with multiple roots 

Git histories may have multiple roots, which can cause
git merge-base to fail and this caused git cvsserver to die.

This commit teaches git cvsserver to handle a failing git
merge-base gracefully, and modifies the test case to verify this.
All the test cases now use a history with two roots.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>

 git-cvsserver.perl              |    9 ++++++++-
 t/t9400-git-cvsserver-server.sh |   10 +++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Steffen Prohaska 2008-01-26 10:54:06 +01:00 committed by Junio C Hamano
parent 7549376587
commit e509db990b
2 changed files with 17 additions and 2 deletions
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9
git-cvsserver.perl
View File

@ -2543,8 +2543,15 @@ sub update
if ($parent eq $lastpicked) {
next;
}
my $base = safe_pipe_capture('git-merge-base',
my $base = eval {
safe_pipe_capture('git-merge-base',
$lastpicked, $parent);
};
# The two branches may not be related at all,
# in which case merge base simply fails to find
# any, but that's Ok.
next if ($@);
chomp $base;
if ($base) {
my @merged;

10
t/t9400-git-cvsserver-server.sh
View File

@ -37,6 +37,13 @@ test_expect_success 'setup' '
echo >empty &&
git add empty &&
git commit -q -m "First Commit" &&
mkdir secondroot &&
( cd secondroot &&
git init &&
touch secondrootfile &&
git add secondrootfile &&
git commit -m "second root") &&
git pull secondroot master &&
git clone -q --local --bare "$WORKDIR/.git" "$SERVERDIR" >/dev/null 2>&1 &&
GIT_DIR="$SERVERDIR" git config --bool gitcvs.enabled true &&
GIT_DIR="$SERVERDIR" git config gitcvs.logfile "$SERVERDIR/gitcvs.log"
@ -46,7 +53,8 @@ test_expect_success 'setup' '
# as argument to co -d
test_expect_success 'basic checkout' \
'GIT_CONFIG="$git_config" cvs -Q co -d cvswork master &&
test "$(echo $(grep -v ^D cvswork/CVS/Entries|cut -d/ -f2,3,5))" = "empty/1.1/"'
test "$(echo $(grep -v ^D cvswork/CVS/Entries|cut -d/ -f2,3,5 | head -n 1))" = "empty/1.1/"
test "$(echo $(grep -v ^D cvswork/CVS/Entries|cut -d/ -f2,3,5 | tail -n 1))" = "secondrootfile/1.1/"'
#------------------------
# PSERVER AUTHENTICATION