From e509db990b2ecae642efe3cdef4014d57d525f24 Mon Sep 17 00:00:00 2001 From: Steffen Prohaska Date: Sat, 26 Jan 2008 10:54:06 +0100 Subject: [PATCH] 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 git-cvsserver.perl | 9 ++++++++- t/t9400-git-cvsserver-server.sh | 10 +++++++++- 2 files changed, 17 insertions(+), 2 deletions(-) Signed-off-by: Junio C Hamano --- git-cvsserver.perl | 9 ++++++++- t/t9400-git-cvsserver-server.sh | 10 +++++++++- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/git-cvsserver.perl b/git-cvsserver.perl index ecded3b9c..afe3d0b7f 100755 --- a/git-cvsserver.perl +++ b/git-cvsserver.perl @@ -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; diff --git a/t/t9400-git-cvsserver-server.sh b/t/t9400-git-cvsserver-server.sh index 1f2749eef..75d1ce433 100755 --- a/t/t9400-git-cvsserver-server.sh +++ b/t/t9400-git-cvsserver-server.sh @@ -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 -- 2.30.2