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authorEric Wong <normalperson@yhbt.net>2006-06-01 09:35:44 (GMT)
committerEric Wong <normalperson@yhbt.net>2006-06-16 10:04:20 (GMT)
commit79bb8d88fc61b03a80fe99915f15a25172286c1f (patch)
tree9d00be23929920b70708eb1d485f2b472b4a8fb0
parent7a97de4e19757b5576f32ce67d90cb792dbb893b (diff)
downloadgit-79bb8d88fc61b03a80fe99915f15a25172286c1f.zip
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git-svn: add 'log' command, a facsimile of basic `svn log'
This quick feature should make it easy to look up svn log messages when svn users refer to -r/--revision numbers. The following features from `svn log' are supported: --revision=<n>[:<n>] - is supported, non-numeric args are not: HEAD, NEXT, BASE, PREV, etc ... -v/--verbose - just maps to --raw (in git log), so it's completely incompatible with the --verbose output in svn log --limit=<n> - is NOT the same as --max-count, doesn't count merged/excluded commits --incremental - supported (trivial :P) New features: --show-commit - shows the git commit sha1, as well --oneline - our version of --pretty=oneline Any other arguments are passed directly to `git log' Signed-off-by: Eric Wong <normalperson@yhbt.net>
-rwxr-xr-xcontrib/git-svn/git-svn.perl260
1 files changed, 243 insertions, 17 deletions
diff --git a/contrib/git-svn/git-svn.perl b/contrib/git-svn/git-svn.perl
index d5c7e47..03416ae 100755
--- a/contrib/git-svn/git-svn.perl
+++ b/contrib/git-svn/git-svn.perl
@@ -15,6 +15,7 @@ $GIT_DIR = abs_path($ENV{GIT_DIR} || '.git');
$ENV{GIT_DIR} = $GIT_DIR;
my $LC_ALL = $ENV{LC_ALL};
+my $TZ = $ENV{TZ};
# make sure the svn binary gives consistent output between locales and TZs:
$ENV{TZ} = 'UTC';
$ENV{LC_ALL} = 'C';
@@ -27,7 +28,7 @@ use Carp qw/croak/;
use IO::File qw//;
use File::Basename qw/dirname basename/;
use File::Path qw/mkpath/;
-use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
+use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
use File::Spec qw//;
use POSIX qw/strftime/;
my $sha1 = qr/[a-f\d]{40}/;
@@ -36,8 +37,9 @@ my ($_revision,$_stdin,$_no_ignore_ext,$_no_stop_copy,$_help,$_rmdir,$_edit,
$_find_copies_harder, $_l, $_cp_similarity,
$_repack, $_repack_nr, $_repack_flags,
$_template, $_shared, $_no_default_regex, $_no_graft_copy,
+ $_limit, $_verbose, $_incremental, $_oneline, $_l_fmt, $_show_commit,
$_version, $_upgrade, $_authors, $_branch_all_refs, @_opt_m);
-my (@_branch_from, %tree_map, %users);
+my (@_branch_from, %tree_map, %users, %rusers);
my ($_svn_co_url_revs, $_svn_pg_peg_revs);
my @repo_path_split_cache;
@@ -87,6 +89,15 @@ my %cmd = (
'multi-fetch' => [ \&multi_fetch,
'Fetch multiple trees (like git-svnimport)',
\%fc_opts ],
+ 'log' => [ \&show_log, 'Show commit logs',
+ { 'limit=i' => \$_limit,
+ 'revision|r=s' => \$_revision,
+ 'verbose|v' => \$_verbose,
+ 'incremental' => \$_incremental,
+ 'oneline' => \$_oneline,
+ 'show-commit' => \$_show_commit,
+ 'authors-file|A=s' => \$_authors,
+ } ],
);
my $cmd;
@@ -101,9 +112,10 @@ for (my $i = 0; $i < @ARGV; $i++) {
my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
read_repo_config(\%opts);
-GetOptions(%opts, 'help|H|h' => \$_help,
- 'version|V' => \$_version,
- 'id|i=s' => \$GIT_SVN) or exit 1;
+my $rv = GetOptions(%opts, 'help|H|h' => \$_help,
+ 'version|V' => \$_version,
+ 'id|i=s' => \$GIT_SVN);
+exit 1 if (!$rv && $cmd ne 'log');
set_default_vals();
usage(0) if $_help;
@@ -173,18 +185,10 @@ sub rebuild {
croak "Non-SHA1: $c\n" unless $c =~ /^$sha1$/o;
my @commit = grep(/^git-svn-id: /,`git-cat-file commit $c`);
next if (!@commit); # skip merges
- my $id = $commit[$#commit];
- my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
- \s([a-f\d\-]+)$/x);
- if (!$rev || !$uuid || !$url) {
- # some of the original repositories I made had
- # indentifiers like this:
- ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)
- \@([a-f\d\-]+)/x);
- if (!$rev || !$uuid) {
- croak "Unable to extract revision or UUID from ",
- "$c, $id\n";
- }
+ my ($url, $rev, $uuid) = extract_metadata($commit[$#commit]);
+ if (!$rev || !$uuid) {
+ croak "Unable to extract revision or UUID from ",
+ "$c, $commit[$#commit]\n";
}
# if we merged or otherwise started elsewhere, this is
@@ -448,6 +452,81 @@ sub multi_fetch {
rec_fetch('', "$GIT_DIR/svn", @_);
}
+sub show_log {
+ my (@args) = @_;
+ my ($r_min, $r_max);
+ my $r_last = -1; # prevent dupes
+ rload_authors() if $_authors;
+ if (defined $TZ) {
+ $ENV{TZ} = $TZ;
+ } else {
+ delete $ENV{TZ};
+ }
+ if (defined $_revision) {
+ if ($_revision =~ /^(\d+):(\d+)$/) {
+ ($r_min, $r_max) = ($1, $2);
+ } elsif ($_revision =~ /^\d+$/) {
+ $r_min = $r_max = $_revision;
+ } else {
+ print STDERR "-r$_revision is not supported, use ",
+ "standard \'git log\' arguments instead\n";
+ exit 1;
+ }
+ }
+
+ my $pid = open(my $log,'-|');
+ defined $pid or croak $!;
+ if (!$pid) {
+ my @rl = (qw/git-log --abbrev-commit --pretty=raw
+ --default/, "remotes/$GIT_SVN");
+ push @rl, '--raw' if $_verbose;
+ exec(@rl, @args) or croak $!;
+ }
+ setup_pager();
+ my (@k, $c, $d);
+ while (<$log>) {
+ if (/^commit ($sha1_short)/o) {
+ my $cmt = $1;
+ if ($c && defined $c->{r} && $c->{r} != $r_last) {
+ $r_last = $c->{r};
+ process_commit($c, $r_min, $r_max, \@k) or
+ goto out;
+ }
+ $d = undef;
+ $c = { c => $cmt };
+ } elsif (/^author (.+) (\d+) ([\-\+]?\d+)$/) {
+ get_author_info($c, $1, $2, $3);
+ } elsif (/^(?:tree|parent|committer) /) {
+ # ignore
+ } elsif (/^:\d{6} \d{6} $sha1_short/o) {
+ push @{$c->{raw}}, $_;
+ } elsif (/^diff /) {
+ $d = 1;
+ push @{$c->{diff}}, $_;
+ } elsif ($d) {
+ push @{$c->{diff}}, $_;
+ } elsif (/^ (git-svn-id:.+)$/) {
+ my ($url, $rev, $uuid) = extract_metadata($1);
+ $c->{r} = $rev;
+ } elsif (s/^ //) {
+ push @{$c->{l}}, $_;
+ }
+ }
+ if ($c && defined $c->{r} && $c->{r} != $r_last) {
+ $r_last = $c->{r};
+ process_commit($c, $r_min, $r_max, \@k);
+ }
+ if (@k) {
+ my $swap = $r_max;
+ $r_max = $r_min;
+ $r_min = $swap;
+ process_commit($_, $r_min, $r_max) foreach reverse @k;
+ }
+out:
+ close $log;
+ print '-' x72,"\n" unless $_incremental || $_oneline;
+}
+
########################### utility functions #########################
sub rec_fetch {
@@ -1638,6 +1717,17 @@ sub load_authors {
close $authors or croak $!;
}
+sub rload_authors {
+ open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
+ while (<$authors>) {
+ chomp;
+ next unless /^(\S+?)\s*=\s*(.+?)\s*<(.+)>\s*$/;
+ my ($user, $name, $email) = ($1, $2, $3);
+ $rusers{"$name <$email>"} = $user;
+ }
+ close $authors or croak $!;
+}
+
sub svn_propget_base {
my ($p, $f) = @_;
$f .= '@BASE' if $_svn_pg_peg_revs;
@@ -1803,6 +1893,142 @@ sub read_url_paths {
return $l_map;
}
+sub extract_metadata {
+ my $id = shift;
+ my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
+ \s([a-f\d\-]+)$/x);
+ if (!$rev || !$uuid || !$url) {
+ # some of the original repositories I made had
+ # indentifiers like this:
+ ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
+ }
+ return ($url, $rev, $uuid);
+}
+
+sub tz_to_s_offset {
+ my ($tz) = @_;
+ $tz =~ s/(\d\d)$//;
+ return ($1 * 60) + ($tz * 3600);
+}
+
+sub setup_pager { # translated to Perl from pager.c
+ return unless (-t *STDOUT);
+ my $pager = $ENV{PAGER};
+ if (!defined $pager) {
+ $pager = 'less';
+ } elsif (length $pager == 0 || $pager eq 'cat') {
+ return;
+ }
+ pipe my $rfd, my $wfd or return;
+ defined(my $pid = fork) or croak $!;
+ if (!$pid) {
+ open STDOUT, '>&', $wfd or croak $!;
+ return;
+ }
+ open STDIN, '<&', $rfd or croak $!;
+ $ENV{LESS} ||= '-S';
+ exec $pager or croak "Can't run pager: $!\n";;
+}
+
+sub get_author_info {
+ my ($dest, $author, $t, $tz) = @_;
+ $author =~ s/(?:^\s*|\s*$)//g;
+ my $_a;
+ if ($_authors) {
+ $_a = $rusers{$author} || undef;
+ }
+ if (!$_a) {
+ ($_a) = ($author =~ /<([^>]+)\@[^>]+>$/);
+ }
+ $dest->{t} = $t;
+ $dest->{tz} = $tz;
+ $dest->{a} = $_a;
+ # Date::Parse isn't in the standard Perl distro :(
+ if ($tz =~ s/^\+//) {
+ $t += tz_to_s_offset($tz);
+ } elsif ($tz =~ s/^\-//) {
+ $t -= tz_to_s_offset($tz);
+ }
+ $dest->{t_utc} = $t;
+}
+
+sub process_commit {
+ my ($c, $r_min, $r_max, $defer) = @_;
+ if (defined $r_min && defined $r_max) {
+ if ($r_min == $c->{r} && $r_min == $r_max) {
+ show_commit($c);
+ return 0;
+ }
+ return 1 if $r_min == $r_max;
+ if ($r_min < $r_max) {
+ # we need to reverse the print order
+ return 0 if (defined $_limit && --$_limit < 0);
+ push @$defer, $c;
+ return 1;
+ }
+ if ($r_min != $r_max) {
+ return 1 if ($r_min < $c->{r});
+ return 1 if ($r_max > $c->{r});
+ }
+ }
+ return 0 if (defined $_limit && --$_limit < 0);
+ show_commit($c);
+ return 1;
+}
+
+sub show_commit {
+ my $c = shift;
+ if ($_oneline) {
+ my $x = "\n";
+ if (my $l = $c->{l}) {
+ while ($l->[0] =~ /^\s*$/) { shift @$l }
+ $x = $l->[0];
+ }
+ $_l_fmt ||= 'A' . length($c->{r});
+ print 'r',pack($_l_fmt, $c->{r}),' | ';
+ print "$c->{c} | " if $_show_commit;
+ print $x;
+ } else {
+ show_commit_normal($c);
+ }
+}
+
+sub show_commit_normal {
+ my ($c) = @_;
+ print '-' x72, "\nr$c->{r} | ";
+ print "$c->{c} | " if $_show_commit;
+ print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
+ localtime($c->{t_utc})), ' | ';
+ my $nr_line = 0;
+
+ if (my $l = $c->{l}) {
+ while ($l->[$#$l] eq "\n" && $l->[($#$l - 1)] eq "\n") {
+ pop @$l;
+ }
+ $nr_line = scalar @$l;
+ if (!$nr_line) {
+ print "1 line\n\n\n";
+ } else {
+ if ($nr_line == 1) {
+ $nr_line = '1 line';
+ } else {
+ $nr_line .= ' lines';
+ }
+ print $nr_line, "\n\n";
+ print $_ foreach @$l;
+ }
+ } else {
+ print "1 line\n\n";
+
+ }
+ foreach my $x (qw/raw diff/) {
+ if ($c->{$x}) {
+ print "\n";
+ print $_ foreach @{$c->{$x}}
+ }
+ }
+}
+
__END__
Data structures: