From 9da0dabcd9ff71083b6bbc9878c22b12002400dd Mon Sep 17 00:00:00 2001 From: Jeff King Date: Wed, 28 Nov 2007 13:56:11 -0500 Subject: cvsimport: use rev-parse to support packed refs Previously, if refs were packed, git-cvsimport would assume that particular refs did not exist. This could lead to, for example, overwriting previous 'origin' commits that were packed. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- git-cvsimport.perl | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) (limited to 'git-cvsimport.perl') diff --git a/git-cvsimport.perl b/git-cvsimport.perl index e4bc2b54f6..a7a7d8f44d 100755 --- a/git-cvsimport.perl +++ b/git-cvsimport.perl @@ -526,18 +526,12 @@ sub is_sha1 { return $s =~ /^[a-f0-9]{40}$/; } -sub get_headref ($$) { - my $name = shift; - my $git_dir = shift; - - my $f = "$git_dir/$remote/$name"; - if (open(my $fh, $f)) { - chomp(my $r = <$fh>); - is_sha1($r) or die "Cannot get head id for $name ($r): $!"; - return $r; - } - die "unable to open $f: $!" unless $! == POSIX::ENOENT; - return undef; +sub get_headref ($) { + my $name = shift; + my $r = `git rev-parse --verify '$name' 2>/dev/null`; + return undef unless $? == 0; + chomp $r; + return $r; } -d $git_tree @@ -697,7 +691,8 @@ my (@old,@new,@skipped,%ignorebranch); $ignorebranch{'#CVSPS_NO_BRANCH'} = 1; sub commit { - if ($branch eq $opt_o && !$index{branch} && !get_headref($branch, $git_dir)) { + if ($branch eq $opt_o && !$index{branch} && + !get_headref("$remote/$branch")) { # looks like an initial commit # use the index primed by git-init $ENV{GIT_INDEX_FILE} = "$git_dir/index"; @@ -721,7 +716,7 @@ sub commit { update_index(@old, @new); @old = @new = (); my $tree = write_tree(); - my $parent = get_headref($last_branch, $git_dir); + my $parent = get_headref("$remote/$last_branch"); print "Parent ID " . ($parent ? $parent : "(empty)") . "\n" if $opt_v; my @commit_args; @@ -732,7 +727,7 @@ sub commit { foreach my $rx (@mergerx) { next unless $logmsg =~ $rx && $1; my $mparent = $1 eq 'HEAD' ? $opt_o : $1; - if (my $sha1 = get_headref($mparent, $git_dir)) { + if (my $sha1 = get_headref("$remote/$mparent")) { push @commit_args, '-p', $mparent; print "Merge parent branch: $mparent\n" if $opt_v; } -- cgit v1.2.3 From 0750d751157addde94f28a7933ed4f914a526eb7 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Wed, 28 Nov 2007 13:56:28 -0500 Subject: cvsimport: miscellaneous packed-ref fixes These were found with a grep for '$git_dir'; they all replace a direct access of "$git_dir/refs/..." with a call to git-rev-parse or git-update-ref. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- git-cvsimport.perl | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) (limited to 'git-cvsimport.perl') diff --git a/git-cvsimport.perl b/git-cvsimport.perl index a7a7d8f44d..d29b547d26 100755 --- a/git-cvsimport.perl +++ b/git-cvsimport.perl @@ -864,29 +864,27 @@ while () { print STDERR "Branch $branch erroneously stems from itself -- changed ancestor to $opt_o\n"; $ancestor = $opt_o; } - if (-f "$git_dir/$remote/$branch") { + if (defined get_headref("$remote/$branch")) { print STDERR "Branch $branch already exists!\n"; $state=11; next; } - unless (open(H,"$git_dir/$remote/$ancestor")) { + my $id = get_headref("$remote/$ancestor"); + if (!$id) { print STDERR "Branch $ancestor does not exist!\n"; $ignorebranch{$branch} = 1; $state=11; next; } - chomp(my $id = ); - close(H); - unless (open(H,"> $git_dir/$remote/$branch")) { - print STDERR "Could not create branch $branch: $!\n"; + + system(qw(git update-ref -m cvsimport), + "$remote/$branch", $id); + if($? != 0) { + print STDERR "Could not create branch $branch\n"; $ignorebranch{$branch} = 1; $state=11; next; } - print H "$id\n" - or die "Could not write branch $branch: $!"; - close(H) - or die "Could not write branch $branch: $!"; } $last_branch = $branch if $branch ne $last_branch; $state = 9; @@ -998,7 +996,7 @@ if ($orig_branch) { $orig_branch = "master"; print "DONE; creating $orig_branch branch\n" if $opt_v; system("git-update-ref", "refs/heads/master", "$remote/$opt_o") - unless -f "$git_dir/refs/heads/master"; + unless defined get_headref('refs/heads/master'); system("git-symbolic-ref", "$remote/HEAD", "$remote/$opt_o") if ($opt_r && $opt_o ne 'HEAD'); system('git-update-ref', 'HEAD', "$orig_branch"); -- cgit v1.2.3