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1 | #!/usr/bin/perl |
2 | use strict; |
3 | use warnings; |
4 | use POSIX qw(strftime); |
5 | |
6 | use base qw/Exporter/; |
7 | our @EXPORT_OK=qw(iso_time_with_dot gen_dot_patch); |
8 | |
9 | sub iso_time_with_dot { |
10 | strftime "%Y-%m-%d.%H:%M:%S",gmtime(shift||time) |
11 | } |
12 | |
13 | # generate the contents of a .patch file for an arbitrary commitish, or for HEAD if none is supplied |
14 | # assumes the CWD is inside of a perl git repository. If the repository is bare then refs/heads/* |
15 | # is used to determine the branch. If the repository is not bare then refs/remotes/origin/* is used |
16 | # to determine the branch. (The assumption being that if its bare then this is running inside of |
17 | # the master git repo - if its not bare then it is a checkout which may not have all the branches) |
18 | sub gen_dot_patch { |
19 | my $target= shift || 'HEAD'; |
20 | chomp(my ($git_dir, $is_bare, $sha1)=`git rev-parse --git-dir --is-bare-repository $target`); |
21 | die "Not in a git repository!" if !$git_dir; |
22 | $is_bare= "" if $is_bare and $is_bare eq 'false'; |
23 | |
24 | # which branches to scan - the order here is important, the first hit we find we use |
25 | # so if two branches can both reach a ref we want the right one first. |
26 | my @branches=( |
27 | 'blead', |
28 | 'maint-5.10', |
29 | 'maint-5.8', |
30 | 'maint-5.8-dor', |
31 | 'maint-5.6', |
32 | 'maint-5.005', |
33 | 'maint-5.004', |
34 | # and more generalized searches... |
35 | 'refs/heads/*', |
36 | 'refs/remotes/*', |
37 | 'refs/*', |
38 | ); |
39 | my $reftype= $is_bare ? "heads" : "remotes/origin"; |
40 | my $branch; |
41 | foreach my $name (@branches) { |
42 | my $refs= $name=~m!^refs/! ? $name : "refs/$reftype/$name"; |
43 | my $cmd= "git name-rev --name-only --refs=$refs $sha1"; |
44 | chomp($branch= `$cmd`); |
45 | last if $branch ne 'undefined'; |
46 | } |
47 | for ($branch) { |
48 | $_ ||= "error"; # hmm, we didnt get /anything/ from name-rev? |
49 | s!^\Q$reftype\E/!! || # strip off the reftype |
50 | s!^refs/heads/!! || # possible other places it was found |
51 | s!^refs/remotes/!! || # ... |
52 | s!^refs/!!; # might even be a tag or something weirdo... |
53 | s![~^].*\z!!; # strip off how far we are from the item |
54 | } |
55 | my $tstamp= iso_time_with_dot(`git log -1 --pretty="format:%ct" $sha1`); |
11a59587 |
56 | chomp(my $describe= `git describe $sha1`); |
ed34cb0d |
57 | join(" ", $branch, $tstamp, $sha1, $describe); |
58 | } |
59 | |
60 | 1; |