3 # tig-like git log output. Used when tig is not available or broken.
5 # Copyright (C) 2013 Simon Ruderich
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
25 use Term::ANSIColor qw(colored);
28 my $color_graph = 'yellow';
29 my $color_hash = 'cyan';
30 my $color_ref_sep = 'cyan';
31 my $color_ref_head = 'cyan bold';
32 my $color_ref_branch = 'green bold';
33 my $color_ref_reference = 'red bold';
34 my $color_author = 'magenta';
37 # Aliases in Git with "! ..." are always run in the top-level-directory.
38 # GIT_PREFIX contains the relative path to the current subdirectory. Thanks to
39 # dr_lepper in #git on Freenode (2013-04-03 23:17 CEST) for telling me about
41 if (defined $ENV{GIT_PREFIX} and $ENV{GIT_PREFIX} ne '') {
42 chdir $ENV{GIT_PREFIX} or die $!;
45 my $format = '%x00' # separator from --graph
46 . '%h' . '%x00' # abbreviated commit hash
47 . '%at' . '%x00' # author date
48 . '%an' . '%x00' # author name
49 . '%s' . '%x00' # subject
51 my @cmd = ('git', 'log', '--graph', "--format=$format",
52 # use either given arguments or --all to list all commits
53 (scalar @ARGV) ? @ARGV : '--all');
54 open my $fh, '-|', @cmd or die $!;
56 my $pager = $ENV{PAGER};
57 # Try to find an usable pager without searching $PATH.
58 if (not defined $pager) {
59 foreach my $path (qw(/usr/bin/less /bin/less /usr/bin/more /bin/more)) {
66 # Use a pager if STDOUT is a terminal.
67 if (-t STDOUT and defined $pager) {
68 open STDOUT, '|-', $pager or die $!;
73 if (m{^([|/\\_ ]+)$}) {
74 print colored($_, $color_graph);
79 /^([ *|.\\-]+)\x00(.+)\x00(.+)\x00(.+)\x00(.*)\x00(.*)$/ or die $_;
81 my $hash = colored($2, $color_hash);
82 my $date = POSIX::strftime('%Y-%m-%d', localtime($3));
83 my $author = colored($4, $color_author);
87 # Strip trailing whitespace.
90 $prefix =~ s/\|/colored($&, $color_graph)/ge;
92 # Strip leading whitespace and braces.
97 $refs = join colored(', ', $color_ref_sep), map {
100 $color = $color_ref_head;
102 $color = $color_ref_reference;
104 $color = $color_ref_branch;
111 . colored('(', $color_ref_sep)
113 . colored(')', $color_ref_sep);
116 printf "%s %s %s %s%s %s\n",
117 $prefix, $hash, $date, $author, $refs, $message;
122 # Necessary for the redirection to a pager or the pager terminates after our
123 # script finishes without displaying all data.
124 if (defined $pager) {
125 close STDOUT or die $!;