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Revert "Convert git-annotate to use Git.pm"
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This reverts commit 7fb39d5.
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Junio C Hamano committed Sep 3, 2006
1 parent 60a144f commit 3c2f588
Showing 1 changed file with 151 additions and 32 deletions.
183 changes: 151 additions & 32 deletions git-annotate.perl
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@
use Getopt::Long;
use POSIX qw(strftime gmtime);
use File::Basename qw(basename dirname);
use Git;

sub usage() {
print STDERR "Usage: ${\basename $0} [-s] [-S revs-file] file [ revision ]
Expand All @@ -30,7 +29,7 @@ ()
exit(1);
}

our ($help, $longrev, $rename, $rawtime, $starting_rev, $rev_file, $repo) = (0, 0, 1);
our ($help, $longrev, $rename, $rawtime, $starting_rev, $rev_file) = (0, 0, 1);

my $rc = GetOptions( "long|l" => \$longrev,
"time|t" => \$rawtime,
Expand All @@ -53,8 +52,6 @@ ()
},
);

$repo = Git->repository();

our @filelines = ();

if (defined $starting_rev) {
Expand Down Expand Up @@ -105,11 +102,15 @@ ()
push @revqueue, $head;
init_claim( defined $starting_rev ? $head : 'dirty');
unless (defined $starting_rev) {
my %ident;
@ident{'author', 'author_email', 'author_date'} = $repo->ident('author');
my $diff = $repo->command_output_pipe('diff', '-R', 'HEAD', '--', $filename);
_git_diff_parse($diff, [$head], "dirty", %ident);
$repo->command_close_pipe($diff);
my $diff = open_pipe("git","diff","HEAD", "--",$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();

Expand Down Expand Up @@ -179,7 +180,8 @@ sub git_rev_list {
open($revlist, '<' . $rev_file)
or die "Failed to open $rev_file : $!";
} else {
$revlist = $repo->command_output_pipe('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;
Expand All @@ -188,7 +190,7 @@ sub git_rev_list {
my ($rev, @parents) = split /\s+/, $line;
push @revs, [ $rev, @parents ];
}
$repo->command_close_pipe($revlist);
close($revlist);

printf("0 revs found for rev %s (%s)\n", $rev, $file) if (@revs == 0);
return @revs;
Expand All @@ -197,7 +199,8 @@ sub git_rev_list {
sub find_parent_renames {
my ($rev, $file) = @_;

my $patch = $repo->command_output_pipe('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;
Expand All @@ -223,7 +226,7 @@ sub find_parent_renames {
}
}
}
$repo->command_close_pipe($patch);
close($patch);

return \%bound;
}
Expand All @@ -232,26 +235,44 @@ sub find_parent_renames {
sub git_find_parent {
my ($rev, $filename) = @_;

my $parentline = $repo->command_oneline('rev-list', '--remove-empty',
'--parents', '--max-count=1', $rev, '--', $filename);
my ($revfound, $parent) = split m/\s+/, $parentline;
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>;
chomp $parentline;
my ($revfound,$parent) = split m/\s+/, $parentline;

close($revparent);

return $parent;
}

sub git_find_all_parents {
my ($rev) = @_;

my $parentline = $repo->command_oneline("rev-list","--remove-empty", "--parents","--max-count=1","$rev");
my $revparent = open_pipe("git-rev-list","--remove-empty", "--parents","--max-count=1","$rev")
or die "Failed to open git-rev-list to find a single parent: $!";

my $parentline = <$revparent>;
chomp $parentline;
my ($origrev, @parents) = split m/\s+/, $parentline;

close($revparent);

return @parents;
}

sub git_merge_base {
my ($rev1, $rev2) = @_;

my $base = $repo->command_oneline("merge-base", $rev1, $rev2);
my $mb = open_pipe("git-merge-base", $rev1, $rev2)
or die "Failed to open git-merge-base: $!";

my $base = <$mb>;
chomp $base;

close($mb);

return $base;
}

Expand Down Expand Up @@ -316,7 +337,7 @@ sub git_diff_parse {
my ($parents, $rev, %revinfo) = @_;

my @pseudo_parents;
my @command = ("diff-tree");
my @command = ("git-diff-tree");
my $revision_spec;

if (scalar @$parents == 1) {
Expand Down Expand Up @@ -345,11 +366,12 @@ sub git_diff_parse {
push @command, "-p", "-M", $revision_spec, "--", @filenames;


my $diff = $repo->command_output_pipe(@command);
my $diff = open_pipe( @command )
or die "Failed to call git-diff for annotation: $!";

_git_diff_parse($diff, \@pseudo_parents, $rev, %revinfo);

$repo->command_close_pipe($diff);
close($diff);
}

sub _git_diff_parse {
Expand Down Expand Up @@ -525,25 +547,36 @@ sub git_cat_file {
my $blob = git_ls_tree($rev, $filename);
die "Failed to find a blob for $filename in rev $rev\n" if !defined $blob;

my @lines = split(/\n/, $repo->get_object('blob', $blob));
pop @lines unless $lines[$#lines]; # Trailing newline
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(<$catfile>) {
chomp;
push @lines, $_;
}
close($catfile);

return @lines;
}

sub git_ls_tree {
my ($rev, $filename) = @_;

my $lstree = $repo->command_output_pipe('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, $tfilename);
while(<$lstree>) {
chomp;
($mode, $type, $blob, $tfilename) = split(/\s+/, $_, 4);
last if ($tfilename eq $filename);
}
$repo->command_close_pipe($lstree);
close($lstree);

return $blob if ($tfilename eq $filename);
die "git-ls-tree failed to find blob for $filename";

}


Expand All @@ -559,17 +592,25 @@ sub claim_line {

sub git_commit_info {
my ($rev) = @_;
my $commit = $repo->get_object('commit', $rev);
my $commit = open_pipe("git-cat-file", "commit", $rev)
or die "Failed to call git-cat-file: $!";

my %info;
while ($commit =~ /(.*?)\n/g) {
my $line = $1;
if ($line =~ s/^author //) {
@info{'author', 'author_email', 'author_date'} = $repo->ident($line);
} elsif ($line =~ s/^committer//) {
@info{'committer', 'committer_email', 'committer_date'} = $repo->ident($line);
while(<$commit>) {
chomp;
last if (length $_ == 0);

if (m/^author (.*) <(.*)> (.*)$/) {
$info{'author'} = $1;
$info{'author_email'} = $2;
$info{'author_date'} = $3;
} elsif (m/^committer (.*) <(.*)> (.*)$/) {
$info{'committer'} = $1;
$info{'committer_email'} = $2;
$info{'committer_date'} = $3;
}
}
close($commit);

return %info;
}
Expand All @@ -587,3 +628,81 @@ sub format_date {
my $t = $timestamp + $minutes * 60;
return strftime("%Y-%m-%d %H:%M:%S " . $timezone, gmtime($t));
}

# 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}});
}

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