diff options
| -rwxr-xr-x | git-annotate.perl | 73 |
1 files changed, 44 insertions, 29 deletions
diff --git a/git-annotate.perl b/git-annotate.perl index 91da6d5b7f..ee8ff15792 100755 --- a/git-annotate.perl +++ b/git-annotate.perl @@ -98,15 +98,15 @@ while (my $bound = pop @stack) { push @revqueue, $head; init_claim( defined $starting_rev ? $starting_rev : 'dirty'); unless (defined $starting_rev) { - open(DIFF,"-|","git","diff","-R", "HEAD", "--",$filename) + my $diff = open_pipe("git","diff","-R", "HEAD", "--",$filename) or die "Failed to call git diff to check for dirty state: $!"; - _git_diff_parse(*DIFF, $head, "dirty", ( + _git_diff_parse($diff, $head, "dirty", ( 'author' => gitvar_name("GIT_AUTHOR_IDENT"), 'author_date' => sprintf("%s +0000",time()), ) ); - close(DIFF); + close($diff); } handle_rev(); @@ -172,20 +172,21 @@ sub handle_rev { sub git_rev_list { my ($rev, $file) = @_; + my $revlist; if ($rev_file) { - open(P, '<' . $rev_file); + open($revlist, '<' . $rev_file); } else { - open(P,"-|","git-rev-list","--parents","--remove-empty",$rev,"--",$file) + $revlist = open_pipe("git-rev-list","--parents","--remove-empty",$rev,"--",$file) or die "Failed to exec git-rev-list: $!"; } my @revs; - while(my $line = <P>) { + while(my $line = <$revlist>) { chomp $line; my ($rev, @parents) = split /\s+/, $line; push @revs, [ $rev, @parents ]; } - close(P); + close($revlist); printf("0 revs found for rev %s (%s)\n", $rev, $file) if (@revs == 0); return @revs; @@ -194,22 +195,22 @@ sub git_rev_list { sub find_parent_renames { my ($rev, $file) = @_; - open(P,"-|","git-diff-tree", "-M50", "-r","--name-status", "-z","$rev") + my $patch = open_pipe("git-diff-tree", "-M50", "-r","--name-status", "-z","$rev") or die "Failed to exec git-diff: $!"; local $/ = "\0"; my %bound; - my $junk = <P>; - while (my $change = <P>) { + my $junk = <$patch>; + while (my $change = <$patch>) { chomp $change; - my $filename = <P>; + my $filename = <$patch>; chomp $filename; if ($change =~ m/^[AMD]$/ ) { next; } elsif ($change =~ m/^R/ ) { my $oldfilename = $filename; - $filename = <P>; + $filename = <$patch>; chomp $filename; if ( $file eq $filename ) { my $parent = git_find_parent($rev, $oldfilename); @@ -218,7 +219,7 @@ sub find_parent_renames { } } } - close(P); + close($patch); return \%bound; } @@ -227,14 +228,14 @@ sub find_parent_renames { sub git_find_parent { my ($rev, $filename) = @_; - open(REVPARENT,"-|","git-rev-list","--remove-empty", "--parents","--max-count=1","$rev","--",$filename) + my $revparent = open_pipe("git-rev-list","--remove-empty", "--parents","--max-count=1","$rev","--",$filename) or die "Failed to open git-rev-list to find a single parent: $!"; - my $parentline = <REVPARENT>; + my $parentline = <$revparent>; chomp $parentline; my ($revfound,$parent) = split m/\s+/, $parentline; - close(REVPARENT); + close($revparent); return $parent; } @@ -245,13 +246,13 @@ sub git_find_parent { sub git_diff_parse { my ($parent, $rev, %revinfo) = @_; - open(DIFF,"-|","git-diff-tree","-M","-p",$rev,$parent,"--", + my $diff = open_pipe("git-diff-tree","-M","-p",$rev,$parent,"--", $revs{$rev}{'filename'}, $revs{$parent}{'filename'}) or die "Failed to call git-diff for annotation: $!"; - _git_diff_parse(*DIFF, $parent, $rev, %revinfo); + _git_diff_parse($diff, $parent, $rev, %revinfo); - close(DIFF); + close($diff); } sub _git_diff_parse { @@ -264,7 +265,7 @@ sub _git_diff_parse { my $gotheader = 0; my ($remstart); my ($hunk_start, $hunk_index); - while(<DIFF>) { + while(<$diff>) { chomp; if (m/^@@ -(\d+),(\d+) \+(\d+),(\d+)/) { $remstart = $1; @@ -335,15 +336,15 @@ sub git_cat_file { my $blob = git_ls_tree($rev, $filename); - open(C,"-|","git","cat-file", "blob", $blob) + my $catfile = open_pipe("git","cat-file", "blob", $blob) or die "Failed to git-cat-file blob $blob (rev $rev, file $filename): " . $!; my @lines; - while(<C>) { + while(<$catfile>) { chomp; push @lines, $_; } - close(C); + close($catfile); return @lines; } @@ -351,15 +352,15 @@ sub git_cat_file { sub git_ls_tree { my ($rev, $filename) = @_; - open(T,"-|","git","ls-tree",$rev,$filename) + my $lstree = open_pipe("git","ls-tree",$rev,$filename) or die "Failed to call git ls-tree: $!"; my ($mode, $type, $blob, $tfilename); - while(<T>) { + while(<$lstree>) { ($mode, $type, $blob, $tfilename) = split(/\s+/, $_, 4); last if ($tfilename eq $filename); } - close(T); + close($lstree); return $blob if $filename eq $filename; die "git-ls-tree failed to find blob for $filename"; @@ -379,11 +380,11 @@ sub claim_line { sub git_commit_info { my ($rev) = @_; - open(COMMIT, "-|","git-cat-file", "commit", $rev) + my $commit = open_pipe("git-cat-file", "commit", $rev) or die "Failed to call git-cat-file: $!"; my %info; - while(<COMMIT>) { + while(<$commit>) { chomp; last if (length $_ == 0); @@ -397,7 +398,7 @@ sub git_commit_info { $info{'committer_date'} = $3; } } - close(COMMIT); + close($commit); return %info; } @@ -430,3 +431,17 @@ sub gitvar_name { return join(' ', @field[0...(@field-4)]); } + +sub open_pipe { + my (@execlist) = @_; + + my $pid = open my $kid, "-|"; + defined $pid or die "Cannot fork: $!"; + + unless ($pid) { + exec @execlist; + die "Cannot exec @execlist: $!"; + } + + return $kid; +} |