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1 | package Gitalist::Model::Git; |
2 | |
3 | use Moose; |
4 | use namespace::autoclean; |
5 | |
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6 | BEGIN { extends 'Catalyst::Model' } |
7 | |
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8 | use DateTime; |
9 | use Path::Class; |
10 | use Carp qw/croak/; |
11 | use File::Find::Rule; |
12 | use DateTime::Format::Mail; |
13 | use File::Stat::ModeString; |
14 | use List::MoreUtils qw/any/; |
15 | use Scalar::Util qw/blessed/; |
16 | |
04d1d917 |
17 | { |
18 | my $git; |
19 | sub git { |
20 | return $git |
21 | if $git; |
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22 | |
23 | if (my $config_git = Gitalist->config->{git}) { |
24 | $git = $config_git if -x $config_git; |
25 | } |
26 | else { |
27 | require File::Which; |
28 | $git = File::Which::which('git'); |
29 | } |
30 | |
31 | if (!$git) { |
32 | die <<EOR |
33 | Could not find a git executable. |
34 | Please specify the which git executable to use in gitweb.yml |
35 | EOR |
36 | } |
37 | |
38 | return $git; |
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39 | } |
40 | } |
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41 | |
42 | sub is_git_repo { |
43 | my ($self, $dir) = @_; |
44 | |
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45 | return -f $dir->file('HEAD') || -f $dir->file('.git/HEAD'); |
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46 | } |
47 | |
48 | sub project_info { |
49 | my ($self, $project) = @_; |
50 | |
51 | return { |
52 | name => $project, |
53 | $self->get_project_properties( |
54 | $self->git_dir_from_project_name($project), |
55 | ), |
56 | }; |
57 | } |
58 | |
59 | sub get_project_properties { |
60 | my ($self, $dir) = @_; |
61 | my %props; |
62 | |
63 | eval { |
64 | $props{description} = $dir->file('description')->slurp; |
65 | chomp $props{description}; |
66 | }; |
67 | |
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68 | if ($props{description} && $props{description} =~ /^Unnamed repository;/) { |
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69 | delete $props{description}; |
70 | } |
71 | |
72 | $props{owner} = (getpwuid $dir->stat->uid)[6]; |
73 | |
74 | my $output = $self->run_cmd_in($dir, qw{ |
75 | for-each-ref --format=%(committer) |
76 | --sort=-committerdate --count=1 refs/heads |
77 | }); |
78 | |
79 | if (my ($epoch, $tz) = $output =~ /\s(\d+)\s+([+-]\d+)$/) { |
80 | my $dt = DateTime->from_epoch(epoch => $epoch); |
81 | $dt->set_time_zone($tz); |
82 | $props{last_change} = $dt; |
83 | } |
84 | |
85 | return %props; |
86 | } |
87 | |
88 | sub list_projects { |
89 | my ($self) = @_; |
90 | |
91 | my $base = dir(Gitalist->config->{repo_dir}); |
92 | |
93 | my @ret; |
94 | my $dh = $base->open; |
95 | while (my $file = $dh->read) { |
96 | next if $file =~ /^.{1,2}$/; |
97 | |
98 | my $obj = $base->subdir($file); |
99 | next unless -d $obj; |
100 | next unless $self->is_git_repo($obj); |
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101 | # XXX Leaky abstraction alert! |
e66db0fb |
102 | my $is_bare = !-d $obj->subdir('.git'); |
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103 | |
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104 | my $name = (File::Spec->splitdir($obj))[-1]; |
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105 | push @ret, { |
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106 | name => ($name . ( $is_bare ? '.git' : '/.git' )), |
107 | $self->get_project_properties( |
108 | $is_bare ? $obj : $obj->subdir('.git') |
109 | ), |
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110 | }; |
111 | } |
112 | |
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113 | return [sort { $a->{name} cmp $b->{name} } @ret]; |
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114 | } |
115 | |
116 | sub run_cmd { |
117 | my ($self, @args) = @_; |
118 | |
119 | open my $fh, '-|', __PACKAGE__->git, @args |
120 | or die "failed to run git command"; |
121 | binmode $fh, ':encoding(UTF-8)'; |
122 | |
123 | my $output = do { local $/ = undef; <$fh> }; |
124 | close $fh; |
125 | |
126 | return $output; |
127 | } |
128 | |
129 | sub run_cmd_in { |
130 | my ($self, $project, @args) = @_; |
131 | |
132 | my $path; |
133 | if (blessed($project) && $project->isa('Path::Class::Dir')) { |
134 | $path = $project->stringify; |
135 | } |
136 | else { |
137 | $path = $self->git_dir_from_project_name($project); |
138 | } |
139 | return $self->run_cmd('--git-dir' => $path, @args); |
140 | } |
141 | |
142 | sub git_dir_from_project_name { |
143 | my ($self, $project) = @_; |
144 | |
145 | return dir(Gitalist->config->{repo_dir})->subdir($project); |
146 | } |
147 | |
148 | sub get_head_hash { |
149 | my ($self, $project) = @_; |
150 | |
151 | my $output = $self->run_cmd_in($project, qw/rev-parse --verify HEAD/ ); |
152 | return unless defined $output; |
153 | |
154 | my ($head) = $output =~ /^([0-9a-fA-F]{40})$/; |
155 | return $head; |
156 | } |
157 | |
158 | sub list_tree { |
159 | my ($self, $project, $rev) = @_; |
160 | |
161 | $rev ||= $self->get_head_hash($project); |
162 | |
163 | my $output = $self->run_cmd_in($project, qw/ls-tree -z/, $rev); |
164 | return unless defined $output; |
165 | |
166 | my @ret; |
167 | for my $line (split /\0/, $output) { |
168 | my ($mode, $type, $object, $file) = split /\s+/, $line, 4; |
169 | |
170 | push @ret, { |
171 | mode => oct $mode, |
172 | type => $type, |
173 | object => $object, |
174 | file => $file, |
175 | }; |
176 | } |
177 | |
178 | return @ret; |
179 | } |
180 | |
181 | sub get_object_mode_string { |
182 | my ($self, $object) = @_; |
183 | |
184 | return unless $object && $object->{mode}; |
185 | return mode_to_string($object->{mode}); |
186 | } |
187 | |
188 | sub get_object_type { |
189 | my ($self, $project, $object) = @_; |
190 | |
191 | my $output = $self->run_cmd_in($project, qw/cat-file -t/, $object); |
192 | return unless $output; |
193 | |
194 | chomp $output; |
195 | return $output; |
196 | } |
197 | |
295c9703 |
198 | sub get_hash_by_path { |
199 | my($self, $base, $path, $type) = @_; |
200 | |
201 | $path =~ s{/+$}(); |
202 | |
203 | my $line = $self->run_cmd('ls-tree', $base, '--', $path) |
204 | or return; |
205 | |
206 | #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa panic.c' |
207 | $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/; |
208 | return defined $type && $type ne $2 |
209 | ? () |
210 | : return $3; |
211 | } |
212 | |
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213 | sub cat_file { |
214 | my ($self, $project, $object) = @_; |
215 | |
216 | my $type = $self->get_object_type($project, $object); |
217 | die "object `$object' is not a file\n" |
218 | if (!defined $type || $type ne 'blob'); |
219 | |
220 | my $output = $self->run_cmd_in($project, qw/cat-file -p/, $object); |
221 | return unless $output; |
222 | |
223 | return $output; |
224 | } |
225 | |
226 | sub valid_rev { |
227 | my ($self, $rev) = @_; |
228 | |
229 | return unless $rev; |
230 | return ($rev =~ /^([0-9a-fA-F]{40})$/); |
231 | } |
232 | |
233 | sub diff { |
234 | my ($self, $project, @revs) = @_; |
235 | |
236 | croak("Gitalist::Model::Git::diff needs a project and either one or two revisions") |
237 | if scalar @revs < 1 |
238 | || scalar @revs > 2 |
239 | || any { !$self->valid_rev($_) } @revs; |
240 | |
241 | my $output = $self->run_cmd_in($project, 'diff', @revs); |
242 | return unless $output; |
243 | |
244 | return $output; |
245 | } |
246 | |
247 | { |
248 | my $formatter = DateTime::Format::Mail->new; |
249 | |
250 | sub parse_rev_list { |
251 | my ($self, $output) = @_; |
252 | my @ret; |
253 | |
254 | my @revs = split /\0/, $output; |
255 | |
256 | for my $rev (split /\0/, $output) { |
257 | for my $line (split /\n/, $rev, 6) { |
258 | chomp $line; |
259 | next unless $line; |
260 | |
261 | if ($self->valid_rev($line)) { |
262 | push @ret, {rev => $line}; |
263 | next; |
264 | } |
265 | |
266 | if (my ($key, $value) = $line =~ /^(tree|parent)\s+(.*)$/) { |
267 | $ret[-1]->{$key} = $value; |
268 | next; |
269 | } |
270 | |
271 | if (my ($key, $value, $epoch, $tz) = $line =~ /^(author|committer)\s+(.*)\s+(\d+)\s+([+-]\d+)$/) { |
272 | $ret[-1]->{$key} = $value; |
273 | eval { |
274 | $ret[-1]->{ $key . "_datetime" } = DateTime->from_epoch(epoch => $epoch); |
275 | $ret[-1]->{ $key . "_datetime" }->set_time_zone($tz); |
276 | $ret[-1]->{ $key . "_datetime" }->set_formatter($formatter); |
277 | }; |
278 | |
279 | if ($@) { |
280 | $ret[-1]->{ $key . "_datetime" } = "$epoch $tz"; |
281 | } |
282 | |
283 | if (my ($name, $email) = $value =~ /^([^<]+)\s+<([^>]+)>$/) { |
284 | $ret[-1]->{ $key . "_name" } = $name; |
285 | $ret[-1]->{ $key . "_email" } = $email; |
286 | } |
287 | } |
288 | |
289 | $line =~ s/^\n?\s{4}//; |
290 | $ret[-1]->{longmessage} = $line; |
291 | $ret[-1]->{message} = (split /\n/, $line, 2)[0]; |
292 | } |
293 | } |
294 | |
295 | return @ret; |
296 | } |
297 | } |
298 | |
299 | sub list_revs { |
300 | my ($self, $project, %args) = @_; |
301 | |
302 | $args{rev} ||= $self->get_head_hash($project); |
303 | |
304 | my $output = $self->run_cmd_in($project, 'rev-list', |
305 | '--header', |
306 | (defined $args{ count } ? "--max-count=$args{count}" : ()), |
307 | (defined $args{ skip } ? "--skip=$args{skip}" : ()), |
308 | $args{rev}, |
309 | '--', |
310 | ($args{file} || ()), |
311 | ); |
312 | return unless $output; |
313 | |
314 | my @revs = $self->parse_rev_list($output); |
315 | |
316 | return \@revs; |
317 | } |
318 | |
319 | sub rev_info { |
320 | my ($self, $project, $rev) = @_; |
321 | |
322 | return unless $self->valid_rev($rev); |
323 | |
324 | return $self->list_revs($project, rev => $rev, count => 1); |
325 | } |
326 | |
327 | sub get_heads { |
328 | my ($self, $project) = @_; |
329 | |
330 | my $output = $self->run_cmd_in($project, qw/for-each-ref --sort=-committerdate /, '--format=%(objectname)%00%(refname)%00%(committer)', 'refs/heads'); |
331 | return unless $output; |
332 | |
333 | my @ret; |
334 | for my $line (split /\n/, $output) { |
335 | my ($rev, $head, $commiter) = split /\0/, $line, 3; |
336 | $head =~ s!^refs/heads/!!; |
337 | |
338 | push @ret, { rev => $rev, name => $head }; |
339 | |
340 | #FIXME: That isn't the time I'm looking for.. |
341 | if (my ($epoch, $tz) = $output =~ /\s(\d+)\s+([+-]\d+)$/) { |
342 | my $dt = DateTime->from_epoch(epoch => $epoch); |
343 | $dt->set_time_zone($tz); |
344 | $ret[-1]->{last_change} = $dt; |
345 | } |
346 | } |
347 | |
348 | return \@ret; |
349 | } |
350 | |
351 | sub archive { |
352 | my ($self, $project, $rev) = @_; |
353 | |
354 | #FIXME: huge memory consuption |
355 | #TODO: compression |
356 | return $self->run_cmd_in($project, qw/archive --format=tar/, "--prefix=${project}/", $rev); |
357 | } |
358 | |
359 | 1; |
360 | |
361 | __PACKAGE__->meta->make_immutable; |