1 # Copyright (C) all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # Standalone code repository viewer for users w/o cgit.
5 # This isn't intended to replicate all of cgit, but merely to be a
6 # "good enough" viewer with search support and some UI hints to encourage
7 # cloning + command-line usage.
8 package PublicInbox::WwwCoderepo;
10 use File::Temp 0.19 (); # newdir
11 use PublicInbox::ViewVCS;
12 use PublicInbox::WwwStatic qw(r);
13 use PublicInbox::GitHTTPBackend;
15 use PublicInbox::GitAsyncCat;
16 use PublicInbox::WwwStream;
17 use PublicInbox::Hval qw(ascii_html);
18 use PublicInbox::ViewDiff qw(uri_escape_path);
19 use PublicInbox::RepoSnapshot;
20 use PublicInbox::RepoAtom;
22 my $EACH_REF = "git for-each-ref --sort=-creatordate --format='%(HEAD)%00".
23 join('%00', map { "%($_)" }
24 qw(objectname refname:short subject creatordate:short))."'";
26 # shared with PublicInbox::Cgit
27 sub prepare_coderepos {
29 my $pi_cfg = $self->{pi_cfg};
31 # TODO: support gitweb and other repository viewers?
32 $pi_cfg->parse_cgitrc(undef, 0);
34 my $code_repos = $pi_cfg->{-code_repos};
35 for my $k (grep(/\Acoderepo\.(?:.+)\.dir\z/, keys %$pi_cfg)) {
36 $k = substr($k, length('coderepo.'), -length('.dir'));
37 $code_repos->{$k} //= $pi_cfg->fill_code_repo($k);
40 # associate inboxes and extindices with coderepos for search:
41 for my $k (grep(/\Apublicinbox\.(?:.+)\.coderepo\z/, keys %$pi_cfg)) {
42 $k = substr($k, length('publicinbox.'), -length('.coderepo'));
43 my $ibx = $pi_cfg->lookup_name($k) // next;
44 $pi_cfg->repo_objs($ibx);
46 for my $k (grep(/\Aextindex\.(?:.+)\.coderepo\z/, keys %$pi_cfg)) {
47 $k = substr($k, length('extindex.'), -length('.coderepo'));
48 my $eidx = $pi_cfg->lookup_ei($k) // next;
49 $pi_cfg->repo_objs($eidx);
54 my ($cls, $pi_cfg) = @_;
55 my $self = bless { pi_cfg => $pi_cfg }, $cls;
56 prepare_coderepos($self);
57 $self->{snapshots} = do {
58 my $s = $pi_cfg->{'coderepo.snapshots'} // '';
59 $s eq 'all' ? \%PublicInbox::RepoSnapshot::FMT_TYPES :
60 +{ map { $_ => 1 } split(/\s+/, $s) };
62 $self->{$_} = 10 for qw(summary_branches summary_tags);
63 $self->{$_} = 10 for qw(summary_log);
69 my $wcb = delete($ctx->{env}->{'qspawn.wcb'}) or return; # already done
70 my @x = split(/\n\n/sm, delete($ctx->{-each_refs}));
71 PublicInbox::WwwStream::html_init($ctx);
75 my @r = split(/\n/s, pop(@x) // '');
76 my $last = pop(@r) if scalar(@r) > $ctx->{wcr}->{summary_log};
78 if (defined(my $tip = $ctx->{qp}->{h})) {
79 $tip_html .= ' '.ascii_html($tip).' --';
82 <pre><a id=log>\$</a> git log --pretty=format:'%h %s (%cs)%d'$tip_html
86 s/^ \(([^\)]+)\)// and $d = $1;
88 my ($H, $h, $cs, $s) = split(/ /, $_, 4);
89 print $zfh "<a\nhref=./$H/s/>$h</a> ", ascii_html($s),
91 print $zfh "\t(", ascii_html($d), ")\n" if $d;
93 print $zfh "# no commits, yet\n" if !@r;
94 print $zfh "...\n" if $last;
97 my ($bref, $oid, $ref_path) = @{delete $ctx->{-readme}};
99 my $l = PublicInbox::Linkify->new;
100 $$bref =~ s/\s*\z//sm;
101 my (undef, $path) = split(/:/, $ref_path, 2); # HEAD:README
102 print $zfh "\n<a id=readme>\$</a> " .
103 qq(git cat-file blob <a href="./$oid/s/?b=) .
104 ascii_html(uri_escape_path($path)) . q(">).
105 ascii_html($ref_path), "</a>\n",
106 $l->to_html($$bref), '</pre><hr><pre>';
110 print $zfh "<a id=heads># heads (aka `branches'):</a>\n\$ " .
111 "git for-each-ref --sort=-creatordate refs/heads" .
112 " \\\n\t--format='%(HEAD) ". # no space for %(align:) hint
113 "%(refname:short) %(subject) (%(creatordate:short))'\n";
114 @r = split(/^/sm, shift(@x) // '');
115 $last = pop(@r) if scalar(@r) > $ctx->{wcr}->{summary_branches};
117 my ($pfx, $oid, $ref, $s, $cd) = split(/\0/);
118 utf8::decode($_) for ($ref, $s);
120 my $align = length($ref) < 12 ? ' ' x (12 - length($ref)) : '';
121 print $zfh "$pfx <a\nhref=./$oid/s/>", ascii_html($ref),
122 "</a>$align ", ascii_html($s), " ($cd)\n";
124 print $zfh "# no heads (branches) yet...\n" if !@r;
125 print $zfh "...\n" if $last;
126 print $zfh "\n<a id=tags># tags:</a>\n\$ " .
127 "git for-each-ref --sort=-creatordate refs/tags" .
128 " \\\n\t--format='". # no space for %(align:) hint
129 "%(refname:short) %(subject) (%(creatordate:short))'\n";
130 @r = split(/^/sm, shift(@x) // '');
131 $last = pop(@r) if scalar(@r) > $ctx->{wcr}->{summary_tags};
132 my @s = sort keys %{$ctx->{wcr}->{snapshots}};
135 $n = $ctx->{git}->local_nick // die "BUG: $ctx->{git_dir} nick";
137 ($n) = ($n =~ m!([^/]+)\z!);
141 my (undef, $oid, $ref, $s, $cd) = split(/\0/);
142 utf8::decode($_) for ($ref, $s);
144 my $align = length($ref) < 12 ? ' ' x (12 - length($ref)) : '';
145 print $zfh "<a\nhref=./$oid/s/>", ascii_html($ref),
146 "</a>$align ", ascii_html($s), " ($cd)";
150 print $zfh "\t", join(' ', map {
151 qq{<a href="snapshot/$n$v.$_">$_</a>} } @s);
155 print $zfh "# no tags yet...\n" if !@r;
156 print $zfh "...\n" if $last;
157 $wcb->($ctx->html_done('</pre>'));
160 sub capture_refs ($$) { # psgi_qx callback to capture git-for-each-ref + git-log
161 my ($bref, $ctx) = @_;
162 my $qsp_err = delete $ctx->{-qsp_err};
163 $ctx->{-each_refs} = $$bref;
164 summary_finish($ctx) if $ctx->{-readme};
167 sub set_readme { # git->cat_async callback
168 my ($bref, $oid, $type, $size, $ctx) = @_;
169 my $ref_path = shift @{$ctx->{-nr_readme_tries}}; # e.g. HEAD:README
170 if ($type eq 'blob' && !$ctx->{-readme}) {
171 $ctx->{-readme} = [ $bref, $oid, $ref_path ];
172 } elsif (scalar @{$ctx->{-nr_readme_tries}} == 0) {
173 $ctx->{-readme} //= []; # nothing left to try
174 } # or try another README...
175 summary_finish($ctx) if $ctx->{-each_refs} && $ctx->{-readme};
179 my ($self, $ctx) = @_;
181 my $tip = $ctx->{qp}->{h}; # same as cgit
182 if (defined $tip && $tip eq '') {
183 delete $ctx->{qp}->{h};
186 my $nb = $self->{summary_branches} + 1;
187 my $nt = $self->{summary_tags} + 1;
188 my $nl = $self->{summary_log} + 1;
190 my @cmd = (qw(/bin/sh -c),
191 "$EACH_REF --count=$nb refs/heads; echo && " .
192 "$EACH_REF --count=$nt refs/tags; echo && " .
193 qq(git log -$nl --pretty=format:'%d %H %h %cs %s' "\$@" --));
194 push @cmd, '--', $tip if defined($tip);
195 my $qsp = PublicInbox::Qspawn->new(\@cmd,
196 { GIT_DIR => $ctx->{git}->{git_dir} });
197 $qsp->{qsp_err} = \($ctx->{-qsp_err} = '');
199 my @try = ("$tip:README", "$tip:README.md"); # TODO: configurable
200 $ctx->{-nr_readme_tries} = [ @try ];
201 $ctx->{git}->cat_async($_, \&set_readme, $ctx) for @try;
202 if ($ctx->{env}->{'pi-httpd.async'}) {
203 PublicInbox::GitAsyncCat::watch_cat($ctx->{git});
204 } else { # synchronous
205 $ctx->{git}->cat_async_wait;
207 sub { # $_[0] => PublicInbox::HTTP::{Identity,Chunked}
208 $ctx->{env}->{'qspawn.wcb'} = $_[0];
209 $qsp->psgi_qx($ctx->{env}, undef, \&capture_refs, $ctx);
213 sub srv { # endpoint called by PublicInbox::WWW
214 my ($self, $ctx) = @_;
215 my $path_info = $ctx->{env}->{PATH_INFO};
217 # handle clone requests
218 my $cr = $self->{pi_cfg}->{-code_repos};
219 if ($path_info =~ m!\A/(.+?)/($PublicInbox::GitHTTPBackend::ANY)\z!x) {
220 $git = $cr->{$1} and return
221 PublicInbox::GitHTTPBackend::serve($ctx->{env},$git,$2);
223 $path_info =~ m!\A/(.+?)/\z! and
224 ($ctx->{git} = $cr->{$1}) and return summary($self, $ctx);
225 $path_info =~ m!\A/(.+?)/([a-f0-9]+)/s/\z! and
226 ($ctx->{git} = $cr->{$1}) and
227 return PublicInbox::ViewVCS::show($ctx, $2);
230 if ($path_info =~ m!\A/(.+?)/snapshot/([^/]+)\z! and
231 ($ctx->{git} = $cr->{$1})) {
233 return PublicInbox::RepoSnapshot::srv($ctx, $2) // r(404);
236 if ($path_info =~ m!\A/(.+?)/atom/(.*)\z! and
237 ($ctx->{git} = $cr->{$1})) {
238 return PublicInbox::RepoAtom::srv_atom($ctx, $2) // r(404);
241 # enforce trailing slash:
242 if ($path_info =~ m!\A/(.+?)\z! and ($git = $cr->{$1})) {
243 my $qs = $ctx->{env}->{QUERY_STRING};
244 my $url = $git->base_url($ctx->{env});
245 $url .= "?$qs" if $qs ne '';
246 [ 301, [ Location => $url, 'Content-Type' => 'text/plain' ],
247 [ "Redirecting to $url\n" ] ];