IkiWiki/Plugin/mercurial.pm

   1 #!/usr/bin/perl
   2 package IkiWiki::Plugin::mercurial;
   3
   4 use warnings;
   5 use strict;
   6 use IkiWiki;
   7 use Encode;
   8 use open qw{:utf8 :std};
   9
  10 sub import {
  11         hook(type => "checkconfig", id => "mercurial", call => \&checkconfig);
  12         hook(type => "getsetup", id => "mercurial", call => \&getsetup);
  13         hook(type => "rcs", id => "rcs_update", call => \&rcs_update);
  14         hook(type => "rcs", id => "rcs_prepedit", call => \&rcs_prepedit);
  15         hook(type => "rcs", id => "rcs_commit", call => \&rcs_commit);
  16         hook(type => "rcs", id => "rcs_commit_staged", call => \&rcs_commit_staged);
  17         hook(type => "rcs", id => "rcs_add", call => \&rcs_add);
  18         hook(type => "rcs", id => "rcs_remove", call => \&rcs_remove);
  19         hook(type => "rcs", id => "rcs_rename", call => \&rcs_rename);
  20         hook(type => "rcs", id => "rcs_recentchanges", call => \&rcs_recentchanges);
  21         hook(type => "rcs", id => "rcs_diff", call => \&rcs_diff);
  22         hook(type => "rcs", id => "rcs_getctime", call => \&rcs_getctime);
  23 }
  24
  25 sub checkconfig () {
  26         if (exists $config{mercurial_wrapper} && length $config{mercurial_wrapper}) {
  27                 push @{$config{wrappers}}, {
  28                         wrapper => $config{mercurial_wrapper},
  29                         wrappermode => (defined $config{mercurial_wrappermode} ? $config{mercurial_wrappermode} : "06755"),
  30                 };
  31         }
  32 }
  33
  34 sub getsetup () {
  35         return
  36                 plugin => {
  37                         safe => 0, # rcs plugin
  38                         rebuild => undef,
  39                 },
  40                 mercurial_wrapper => {
  41                         type => "string",
  42                         #example => # FIXME add example
  43                         description => "mercurial post-commit hook to generate",
  44                         safe => 0, # file
  45                         rebuild => 0,
  46                 },
  47                 mercurial_wrappermode => {
  48                         type => "string",
  49                         example => '06755',
  50                         description => "mode for mercurial_wrapper (can safely be made suid)",
  51                         safe => 0,
  52                         rebuild => 0,
  53                 },
  54                 historyurl => {
  55                         type => "string",
  56                         example => "http://example.com:8000/log/tip/[[file]]",
  57                         description => "url to hg serve'd repository, to show file history ([[file]] substituted)",
  58                         safe => 1,
  59                         rebuild => 1,
  60                 },
  61                 diffurl => {
  62                         type => "string",
  63                         example => "http://localhost:8000/?fd=[[r2]];file=[[file]]",
  64                         description => "url to hg serve'd repository, to show diff ([[file]] and [[r2]] substituted)",
  65                         safe => 1,
  66                         rebuild => 1,
  67                 },
  68 }
  69
  70 sub mercurial_log ($) {
  71         my $out = shift;
  72         my @infos;
  73
  74         while (<$out>) {
  75                 my $line = $_;
  76                 my ($key, $value);
  77
  78                 if (/^description:/) {
  79                         $key = "description";
  80                         $value = "";
  81
  82                         # slurp everything as the description text
  83                         # until the next changeset
  84                         while (<$out>) {
  85                                 if (/^changeset: /) {
  86                                         $line = $_;
  87                                         last;
  88                                 }
  89
  90                                 $value .= $_;
  91                         }
  92
  93                         local $/ = "";
  94                         chomp $value;
  95                         $infos[$#infos]{$key} = $value;
  96                 }
  97
  98                 chomp $line;
  99                 ($key, $value) = split /: +/, $line, 2;
 100
 101                 if ($key eq "changeset") {
 102                         push @infos, {};
 103
 104                         # remove the revision index, which is strictly
 105                         # local to the repository
 106                         $value =~ s/^\d+://;
 107                 }
 108
 109                 $infos[$#infos]{$key} = $value;
 110         }
 111         close $out;
 112
 113         return @infos;
 114 }
 115
 116 sub rcs_update () {
 117         my @cmdline = ("hg", "-q", "-R", "$config{srcdir}", "update");
 118         if (system(@cmdline) != 0) {
 119                 warn "'@cmdline' failed: $!";
 120         }
 121 }
 122
 123 sub rcs_prepedit ($) {
 124         return "";
 125 }
 126
 127 sub rcs_commit ($$$;$$) {
 128         my ($file, $message, $rcstoken, $user, $ipaddr) = @_;
 129
 130         if (defined $user) {
 131                 $user = IkiWiki::possibly_foolish_untaint($user);
 132         }
 133         elsif (defined $ipaddr) {
 134                 $user = "Anonymous from ".IkiWiki::possibly_foolish_untaint($ipaddr);
 135         }
 136         else {
 137                 $user = "Anonymous";
 138         }
 139
 140         $message = IkiWiki::possibly_foolish_untaint($message);
 141         if (! length $message) {
 142                 $message = "no message given";
 143         }
 144
 145         my @cmdline = ("hg", "-q", "-R", $config{srcdir}, "commit",
 146                        "-m", $message, "-u", $user);
 147         if (system(@cmdline) != 0) {
 148                 warn "'@cmdline' failed: $!";
 149         }
 150
 151         return undef; # success
 152 }
 153
 154 sub rcs_commit_staged ($$$) {
 155         # Commits all staged changes. Changes can be staged using rcs_add,
 156         # rcs_remove, and rcs_rename.
 157         my ($message, $user, $ipaddr)=@_;
 158
 159         error("rcs_commit_staged not implemented for mercurial"); # TODO
 160 }
 161
 162 sub rcs_add ($) {
 163         my ($file) = @_;
 164
 165         my @cmdline = ("hg", "-q", "-R", "$config{srcdir}", "add", "$config{srcdir}/$file");
 166         if (system(@cmdline) != 0) {
 167                 warn "'@cmdline' failed: $!";
 168         }
 169 }
 170
 171 sub rcs_remove ($) {
 172         my ($file) = @_;
 173
 174         error("rcs_remove not implemented for mercurial"); # TODO
 175 }
 176
 177 sub rcs_rename ($$) {
 178         my ($src, $dest) = @_;
 179
 180         error("rcs_rename not implemented for mercurial"); # TODO
 181 }
 182
 183 sub rcs_recentchanges ($) {
 184         my ($num) = @_;
 185
 186         my @cmdline = ("hg", "-R", $config{srcdir}, "log", "-v", "-l", $num,
 187                 "--style", "default");
 188         open (my $out, "@cmdline |");
 189
 190         eval q{use Date::Parse};
 191         error($@) if $@;
 192
 193         my @ret;
 194         foreach my $info (mercurial_log($out)) {
 195                 my @pages = ();
 196                 my @message = ();
 197
 198                 foreach my $msgline (split(/\n/, $info->{description})) {
 199                         push @message, { line => $msgline };
 200                 }
 201
 202                 foreach my $file (split / /,$info->{files}) {
 203                         my $diffurl = defined $config{diffurl} ? $config{'diffurl'} : "";
 204                         $diffurl =~ s/\[\[file\]\]/$file/go;
 205                         $diffurl =~ s/\[\[r2\]\]/$info->{changeset}/go;
 206
 207                         push @pages, {
 208                                 page => pagename($file),
 209                                 diffurl => $diffurl,
 210                         };
 211                 }
 212
 213                 my $user = $info->{"user"};
 214                 $user =~ s/\s*<.*>\s*$//;
 215                 $user =~ s/^\s*//;
 216
 217                 push @ret, {
 218                         rev        => $info->{"changeset"},
 219                         user       => $user,
 220                         committype => "hg",
 221                         when       => str2time($info->{"date"}),
 222                         message    => [@message],
 223                         pages      => [@pages],
 224                 };
 225         }
 226
 227         return @ret;
 228 }
 229
 230 sub rcs_diff ($) {
 231         # TODO
 232 }
 233
 234 sub rcs_getctime ($) {
 235         my ($file) = @_;
 236
 237         # XXX filename passes through the shell here, should try to avoid
 238         # that just in case
 239         my @cmdline = ("hg", "-R", $config{srcdir}, "log", "-v",
 240                 "--style", "default", "$config{srcdir}/$file");
 241         open (my $out, "@cmdline |");
 242
 243         my @log = mercurial_log($out);
 244
 245         if (length @log < 1) {
 246                 return 0;
 247         }
 248
 249         eval q{use Date::Parse};
 250         error($@) if $@;
 251
 252         my $ctime = str2time($log[$#log]->{"date"});
 253         return $ctime;
 254 }
 255
 256 1