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 POSIX qw(O_RDWR F_GETFL);
12 use PublicInbox::ViewVCS;
13 use PublicInbox::WwwStatic qw(r);
14 use PublicInbox::GitHTTPBackend;
15 use PublicInbox::WwwStream;
16 use PublicInbox::Hval qw(ascii_html);
17 use PublicInbox::ViewDiff qw(uri_escape_path);
18 use PublicInbox::RepoSnapshot;
19 use PublicInbox::RepoAtom;
20 use PublicInbox::RepoTree;
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);
65 # try reuse STDIN if it's already /dev/null
66 open $self->{log_fh}, '+>', '/dev/null' or die "open: $!";
67 my @l = stat($self->{log_fh}) or die "stat: $!";
68 my @s = stat(STDIN) or die "stat(STDIN): $!";
69 if ("@l[0, 1]" eq "@s[0, 1]") {
70 my $f = fcntl(STDIN, F_GETFL, 0) // die "F_GETFL: $!";
71 $self->{log_fh} = *STDIN{IO} if $f & O_RDWR;
78 my $wcb = delete($ctx->{env}->{'qspawn.wcb'}) or return; # already done
79 my @x = split(/\n\n/sm, delete($ctx->{-each_refs}));
80 PublicInbox::WwwStream::html_init($ctx);
84 my @r = split(/\n/s, pop(@x) // '');
85 my $last = pop(@r) if scalar(@r) > $ctx->{wcr}->{summary_log};
87 if (defined(my $tip = $ctx->{qp}->{h})) {
88 $tip_html .= ' '.ascii_html($tip).' --';
91 <pre><a id=log>\$</a> git log --pretty=format:'%h %s (%cs)%d'$tip_html
95 s/^ \(([^\)]+)\)// and $d = $1;
97 my ($H, $h, $cs, $s) = split(/ /, $_, 4);
98 print $zfh "<a\nhref=./$H/s/>$h</a> ", ascii_html($s),
100 print $zfh "\t(", ascii_html($d), ")\n" if $d;
102 print $zfh "# no commits, yet\n" if !@r;
103 print $zfh "...\n" if $last;
106 my ($bref, $oid, $ref_path) = @{delete $ctx->{-readme}};
108 my $l = PublicInbox::Linkify->new;
109 $$bref =~ s/\s*\z//sm;
110 my (undef, $path) = split(/:/, $ref_path, 2); # HEAD:README
111 print $zfh "\n<a id=readme>\$</a> " .
112 qq(git cat-file blob <a href="./$oid/s/?b=) .
113 ascii_html(uri_escape_path($path)) . q(">).
114 ascii_html($ref_path), "</a>\n",
115 $l->to_html($$bref), '</pre><hr><pre>';
119 print $zfh "<a id=heads># heads (aka `branches'):</a>\n\$ " .
120 "git for-each-ref --sort=-creatordate refs/heads" .
121 " \\\n\t--format='%(HEAD) ". # no space for %(align:) hint
122 "%(refname:short) %(subject) (%(creatordate:short))'\n";
123 @r = split(/^/sm, shift(@x) // '');
124 $last = pop(@r) if scalar(@r) > $ctx->{wcr}->{summary_branches};
126 my ($pfx, $oid, $ref, $s, $cd) = split(/\0/);
127 utf8::decode($_) for ($ref, $s);
129 my $align = length($ref) < 12 ? ' ' x (12 - length($ref)) : '';
130 print $zfh "$pfx <a\nhref=./$oid/s/>", ascii_html($ref),
131 "</a>$align ", ascii_html($s), " ($cd)\n";
133 print $zfh "# no heads (branches) yet...\n" if !@r;
134 print $zfh "...\n" if $last;
135 print $zfh "\n<a id=tags># tags:</a>\n\$ " .
136 "git for-each-ref --sort=-creatordate refs/tags" .
137 " \\\n\t--format='". # no space for %(align:) hint
138 "%(refname:short) %(subject) (%(creatordate:short))'\n";
139 @r = split(/^/sm, shift(@x) // '');
140 $last = pop(@r) if scalar(@r) > $ctx->{wcr}->{summary_tags};
141 my @s = sort keys %{$ctx->{wcr}->{snapshots}};
144 $n = $ctx->{git}->local_nick // die "BUG: $ctx->{git_dir} nick";
146 ($n) = ($n =~ m!([^/]+)\z!);
150 my (undef, $oid, $ref, $s, $cd) = split(/\0/);
151 utf8::decode($_) for ($ref, $s);
153 my $align = length($ref) < 12 ? ' ' x (12 - length($ref)) : '';
154 print $zfh "<a\nhref=./$oid/s/>", ascii_html($ref),
155 "</a>$align ", ascii_html($s), " ($cd)";
159 print $zfh "\t", join(' ', map {
160 qq{<a href="snapshot/$n$v.$_">$_</a>} } @s);
164 print $zfh "# no tags yet...\n" if !@r;
165 print $zfh "...\n" if $last;
166 $wcb->($ctx->html_done('</pre>'));
169 sub capture_refs ($$) { # psgi_qx callback to capture git-for-each-ref + git-log
170 my ($bref, $ctx) = @_;
171 my $qsp_err = delete $ctx->{-qsp_err};
172 $ctx->{-each_refs} = $$bref;
173 summary_finish($ctx) if $ctx->{-readme};
176 sub set_readme { # git->cat_async callback
177 my ($bref, $oid, $type, $size, $ctx) = @_;
178 my $ref_path = shift @{$ctx->{-nr_readme_tries}}; # e.g. HEAD:README
179 if ($type eq 'blob' && !$ctx->{-readme}) {
180 $ctx->{-readme} = [ $bref, $oid, $ref_path ];
181 } elsif (scalar @{$ctx->{-nr_readme_tries}} == 0) {
182 $ctx->{-readme} //= []; # nothing left to try
183 } # or try another README...
184 summary_finish($ctx) if $ctx->{-each_refs} && $ctx->{-readme};
188 my ($self, $ctx) = @_;
190 my $tip = $ctx->{qp}->{h}; # same as cgit
191 if (defined $tip && $tip eq '') {
192 delete $ctx->{qp}->{h};
195 my $nb = $self->{summary_branches} + 1;
196 my $nt = $self->{summary_tags} + 1;
197 my $nl = $self->{summary_log} + 1;
199 my @cmd = (qw(/bin/sh -c),
200 "$EACH_REF --count=$nb refs/heads; echo && " .
201 "$EACH_REF --count=$nt refs/tags; echo && " .
202 qq(git log -$nl --pretty=format:'%d %H %h %cs %s' "\$@" --));
203 push @cmd, '--', $tip if defined($tip);
204 my $qsp = PublicInbox::Qspawn->new(\@cmd,
205 { GIT_DIR => $ctx->{git}->{git_dir} });
206 $qsp->{qsp_err} = \($ctx->{-qsp_err} = '');
208 my @try = ("$tip:README", "$tip:README.md"); # TODO: configurable
209 $ctx->{-nr_readme_tries} = [ @try ];
210 PublicInbox::ViewVCS::do_cat_async($ctx, \&set_readme, @try);
211 sub { # $_[0] => PublicInbox::HTTP::{Identity,Chunked}
212 $ctx->{env}->{'qspawn.wcb'} = $_[0];
213 $qsp->psgi_qx($ctx->{env}, undef, \&capture_refs, $ctx);
217 sub srv { # endpoint called by PublicInbox::WWW
218 my ($self, $ctx) = @_;
219 my $path_info = $ctx->{env}->{PATH_INFO};
221 # handle clone requests
222 my $cr = $self->{pi_cfg}->{-code_repos};
223 if ($path_info =~ m!\A/(.+?)/($PublicInbox::GitHTTPBackend::ANY)\z!x and
224 ($git = $cr->{$1})) {
225 PublicInbox::GitHTTPBackend::serve($ctx->{env},$git,$2);
226 } elsif ($path_info =~ m!\A/(.+?)/\z! and ($ctx->{git} = $cr->{$1})) {
228 } elsif ($path_info =~ m!\A/(.+?)/([a-f0-9]+)/s/([^/]+)?\z! and
229 ($ctx->{git} = $cr->{$1})) {
230 $ctx->{lh} = $self->{log_fh};
231 PublicInbox::ViewVCS::show($ctx, $2, $3);
232 } elsif ($path_info =~ m!\A/(.+?)/tree/(.*)\z! and
233 ($ctx->{git} = $cr->{$1})) {
234 $ctx->{lh} = $self->{log_fh};
235 PublicInbox::RepoTree::srv_tree($ctx, $2) // r(404);
236 } elsif ($path_info =~ m!\A/(.+?)/snapshot/([^/]+)\z! and
237 ($ctx->{git} = $cr->{$1})) {
239 PublicInbox::RepoSnapshot::srv($ctx, $2) // r(404);
240 } elsif ($path_info =~ m!\A/(.+?)/atom/(.*)\z! and
241 ($ctx->{git} = $cr->{$1})) {
242 PublicInbox::RepoAtom::srv_atom($ctx, $2) // r(404);
243 } elsif ($path_info =~ m!\A/(.+?)\z! and ($git = $cr->{$1})) {
244 my $qs = $ctx->{env}->{QUERY_STRING};
245 my $url = $git->base_url($ctx->{env});
246 $url .= "?$qs" if $qs ne '';
247 [ 301, [ Location => $url, 'Content-Type' => 'text/plain' ],
248 [ "Redirecting to $url\n" ] ];