use warnings;
use strict;
-use Getopt::Std;
+use Getopt::Long;
use POSIX qw(strftime gmtime);
sub usage() {
- print STDERR 'Usage: ${\basename $0} [-s] [-S revs-file] file
-
- -l show long rev
- -r follow renames
- -S commit use revs from revs-file instead of calling git-rev-list
+ print STDERR 'Usage: ${\basename $0} [-s] [-S revs-file] file [ revision ]
+ -l, --long
+ Show long rev (Defaults off)
+ -r, --rename
+ Follow renames (Defaults on).
+ -S, --rev-file revs-file
+ use revs from revs-file instead of calling git-rev-list
+ -h, --help
+ This message.
';
exit(1);
}
-our ($opt_h, $opt_l, $opt_r, $opt_S);
-getopts("hlrS:") or usage();
-$opt_h && usage();
+our ($help, $longrev, $rename, $starting_rev, $rev_file) = (0, 0, 1);
+
+my $rc = GetOptions( "long|l" => \$longrev,
+ "help|h" => \$help,
+ "rename|r" => \$rename,
+ "rev-file|S" => \$rev_file);
+if (!$rc or $help) {
+ usage();
+}
my $filename = shift @ARGV;
+if (@ARGV) {
+ $starting_rev = shift @ARGV;
+}
my @stack = (
{
- 'rev' => "HEAD",
+ 'rev' => defined $starting_rev ? $starting_rev : "HEAD",
'filename' => $filename,
},
);
-our (@lineoffsets, @pendinglineoffsets);
our @filelines = ();
-open(F,"<",$filename)
- or die "Failed to open filename: $!";
-while(<F>) {
- chomp;
- push @filelines, $_;
+if (defined $starting_rev) {
+ @filelines = git_cat_file($starting_rev, $filename);
+} else {
+ open(F,"<",$filename)
+ or die "Failed to open filename: $!";
+
+ while(<F>) {
+ chomp;
+ push @filelines, $_;
+ }
+ close(F);
+
}
-close(F);
-our $leftover_lines = @filelines;
+
our %revs;
our @revqueue;
our $head;
next;
}
- if (!$opt_r) {
+ if (!$rename) {
next;
}
}
}
push @revqueue, $head;
-init_claim($head);
-$revs{$head}{'lineoffsets'} = {};
+init_claim( defined $starting_rev ? $starting_rev : 'dirty');
+unless (defined $starting_rev) {
+ 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, $head, "dirty", (
+ 'author' => gitvar_name("GIT_AUTHOR_IDENT"),
+ 'author_date' => sprintf("%s +0000",time()),
+ )
+ );
+ close($diff);
+}
handle_rev();
my ($output, $rev, $committer, $date);
if (ref $l eq 'ARRAY') {
($output, $rev, $committer, $date) = @$l;
- if (!$opt_l && length($rev) > 8) {
+ if (!$longrev && length($rev) > 8) {
$rev = substr($rev,0,8);
}
} else {
sub init_claim {
my ($rev) = @_;
- my %revinfo = git_commit_info($rev);
for (my $i = 0; $i < @filelines; $i++) {
$filelines[$i] = [ $filelines[$i], '', '', '', 1];
# line,
sub handle_rev {
my $i = 0;
+ my %seen;
while (my $rev = shift @revqueue) {
+ next if $seen{$rev}++;
my %revinfo = git_commit_info($rev);
sub git_rev_list {
my ($rev, $file) = @_;
- if ($opt_S) {
- open(P, '<' . $opt_S);
+ my $revlist;
+ if ($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, $file) if (@revs == 0);
return @revs;
sub find_parent_renames {
my ($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, $oldfilename);
}
}
}
- close(P);
+ close($patch);
return \%bound;
}
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 $parent;
}
sub git_diff_parse {
my ($parent, $rev, %revinfo) = @_;
- my ($ri, $pi) = (0,0);
- open(DIFF,"-|","git-diff-tree","-M","-p",$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, $rev, %revinfo);
+
+ close($diff);
+}
+
+sub _git_diff_parse {
+ my ($diff, $parent, $rev, %revinfo) = @_;
+
+ my ($ri, $pi) = (0,0);
my $slines = $revs{$rev}{'lines'};
my @plines;
my $gotheader = 0;
- my ($remstart, $remlength, $addstart, $addlength);
- my ($hunk_start, $hunk_index, $hunk_adds);
- while(<DIFF>) {
+ my ($remstart);
+ my ($hunk_start, $hunk_index);
+ while(<$diff>) {
chomp;
if (m/^@@ -(\d+),(\d+) \+(\d+),(\d+)/) {
- ($remstart, $remlength, $addstart, $addlength) = ($1, $2, $3, $4);
+ $remstart = $1;
# Adjust for 0-based arrays
$remstart--;
- $addstart--;
# Reinit hunk tracking.
$hunk_start = $remstart;
$hunk_index = 0;
}
$hunk_index++;
}
- close(DIFF);
for (my $i = $ri; $i < @{$slines} ; $i++) {
push @plines, $slines->[$ri++];
}
}
sub git_cat_file {
- my ($parent, $filename) = @_;
- return () unless defined $parent && defined $filename;
- my $blobline = `git-ls-tree $parent $filename`;
- my ($mode, $type, $blob, $tfilename) = split(/\s+/, $blobline, 4);
+ my ($rev, $filename) = @_;
+ return () unless defined $rev && defined $filename;
+
+ my $blob = git_ls_tree($rev, $filename);
- open(C,"-|","git-cat-file", "blob", $blob)
- or die "Failed to git-cat-file blob $blob (rev $parent, file $filename): " . $!;
+ 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;
}
+sub git_ls_tree {
+ my ($rev, $filename) = @_;
+
+ my $lstree = open_pipe("git","ls-tree",$rev,$filename)
+ or die "Failed to call git ls-tree: $!";
+
+ my ($mode, $type, $blob, $tfilename);
+ while(<$lstree>) {
+ ($mode, $type, $blob, $tfilename) = split(/\s+/, $_, 4);
+ last if ($tfilename eq $filename);
+ }
+ close($lstree);
+
+ return $blob if $filename eq $filename;
+ die "git-ls-tree failed to find blob for $filename";
+
+}
+
+
sub claim_line {
my ($floffset, $rev, $lines, %revinfo) = @_;
sub git_commit_info {
my ($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);
$info{'committer_date'} = $3;
}
}
- close(COMMIT);
+ close($commit);
return %info;
}
return strftime("%Y-%m-%d %H:%M:%S " . $timezone, gmtime($timestamp));
}
+# Copied from git-send-email.perl - We need a Git.pm module..
+sub gitvar {
+ my ($var) = @_;
+ my $fh;
+ my $pid = open($fh, '-|');
+ die "$!" unless defined $pid;
+ if (!$pid) {
+ exec('git-var', $var) or die "$!";
+ }
+ my ($val) = <$fh>;
+ close $fh or die "$!";
+ chomp($val);
+ return $val;
+}
+
+sub gitvar_name {
+ my ($name) = @_;
+ my $val = gitvar($name);
+ my @field = split(/\s+/, $val);
+ return join(' ', @field[0...(@field-4)]);
+}
+
+sub open_pipe {
+ if ($^O eq '##INSERT_ACTIVESTATE_STRING_HERE##') {
+ return open_pipe_activestate(@_);
+ } else {
+ return open_pipe_normal(@_);
+ }
+}
+
+sub open_pipe_activestate {
+ tie *fh, "Git::ActiveStatePipe", @_;
+ return *fh;
+}
+
+sub open_pipe_normal {
+ my (@execlist) = @_;
+
+ my $pid = open my $kid, "-|";
+ defined $pid or die "Cannot fork: $!";
+
+ unless ($pid) {
+ exec @execlist;
+ die "Cannot exec @execlist: $!";
+ }
+
+ return $kid;
+}
+
+package Git::ActiveStatePipe;
+use strict;
+
+sub TIEHANDLE {
+ my ($class, @params) = @_;
+ my $cmdline = join " ", @params;
+ my @data = qx{$cmdline};
+ bless { i => 0, data => \@data }, $class;
+}
+
+sub READLINE {
+ my $self = shift;
+ if ($self->{i} >= scalar @{$self->{data}}) {
+ return undef;
+ }
+ return $self->{'data'}->[ $self->{i}++ ];
+}
+
+sub CLOSE {
+ my $self = shift;
+ delete $self->{data};
+ delete $self->{i};
+}
+
+sub EOF {
+ my $self = shift;
+ return ($self->{i} >= scalar @{$self->{data}});
+}