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e194cd1e JH |
1 | #!/usr/bin/perl -w |
2 | ||
3 | use Git; | |
4 | my $git = Git->repository(); | |
5 | ||
6 | sub add_remote_config { | |
7 | my ($hash, $name, $what, $value) = @_; | |
8 | if ($what eq 'url') { | |
9 | if (exists $hash->{$name}{'URL'}) { | |
10 | print STDERR "Warning: more than one remote.$name.url\n"; | |
11 | } | |
12 | $hash->{$name}{'URL'} = $value; | |
13 | } | |
14 | elsif ($what eq 'fetch') { | |
15 | $hash->{$name}{'FETCH'} ||= []; | |
16 | push @{$hash->{$name}{'FETCH'}}, $value; | |
17 | } | |
18 | if (!exists $hash->{$name}{'SOURCE'}) { | |
19 | $hash->{$name}{'SOURCE'} = 'config'; | |
20 | } | |
21 | } | |
22 | ||
23 | sub add_remote_remotes { | |
24 | my ($hash, $file, $name) = @_; | |
25 | ||
26 | if (exists $hash->{$name}) { | |
27 | $hash->{$name}{'WARNING'} = 'ignored due to config'; | |
28 | return; | |
29 | } | |
30 | ||
31 | my $fh; | |
32 | if (!open($fh, '<', $file)) { | |
33 | print STDERR "Warning: cannot open $file\n"; | |
34 | return; | |
35 | } | |
36 | my $it = { 'SOURCE' => 'remotes' }; | |
37 | $hash->{$name} = $it; | |
38 | while (<$fh>) { | |
39 | chomp; | |
40 | if (/^URL:\s*(.*)$/) { | |
41 | # Having more than one is Ok -- it is used for push. | |
42 | if (! exists $it->{'URL'}) { | |
43 | $it->{'URL'} = $1; | |
44 | } | |
45 | } | |
46 | elsif (/^Push:\s*(.*)$/) { | |
47 | ; # later | |
48 | } | |
49 | elsif (/^Pull:\s*(.*)$/) { | |
50 | $it->{'FETCH'} ||= []; | |
51 | push @{$it->{'FETCH'}}, $1; | |
52 | } | |
53 | elsif (/^\#/) { | |
54 | ; # ignore | |
55 | } | |
56 | else { | |
57 | print STDERR "Warning: funny line in $file: $_\n"; | |
58 | } | |
59 | } | |
60 | close($fh); | |
61 | } | |
62 | ||
63 | sub list_remote { | |
64 | my ($git) = @_; | |
65 | my %seen = (); | |
66 | my @remotes = eval { | |
67 | $git->command(qw(repo-config --get-regexp), '^remote\.'); | |
68 | }; | |
69 | for (@remotes) { | |
70 | if (/^remote\.([^.]*)\.(\S*)\s+(.*)$/) { | |
71 | add_remote_config(\%seen, $1, $2, $3); | |
72 | } | |
73 | } | |
74 | ||
75 | my $dir = $git->repo_path() . "/remotes"; | |
76 | if (opendir(my $dh, $dir)) { | |
77 | local $_; | |
78 | while ($_ = readdir($dh)) { | |
79 | chomp; | |
80 | next if (! -f "$dir/$_" || ! -r _); | |
81 | add_remote_remotes(\%seen, "$dir/$_", $_); | |
82 | } | |
83 | } | |
84 | ||
85 | return \%seen; | |
86 | } | |
87 | ||
88 | sub add_branch_config { | |
89 | my ($hash, $name, $what, $value) = @_; | |
90 | if ($what eq 'remote') { | |
91 | if (exists $hash->{$name}{'REMOTE'}) { | |
92 | print STDERR "Warning: more than one branch.$name.remote\n"; | |
93 | } | |
94 | $hash->{$name}{'REMOTE'} = $value; | |
95 | } | |
96 | elsif ($what eq 'merge') { | |
97 | $hash->{$name}{'MERGE'} ||= []; | |
98 | push @{$hash->{$name}{'MERGE'}}, $value; | |
99 | } | |
100 | } | |
101 | ||
102 | sub list_branch { | |
103 | my ($git) = @_; | |
104 | my %seen = (); | |
105 | my @branches = eval { | |
106 | $git->command(qw(repo-config --get-regexp), '^branch\.'); | |
107 | }; | |
108 | for (@branches) { | |
109 | if (/^branch\.([^.]*)\.(\S*)\s+(.*)$/) { | |
110 | add_branch_config(\%seen, $1, $2, $3); | |
111 | } | |
112 | } | |
113 | ||
114 | return \%seen; | |
115 | } | |
116 | ||
117 | my $remote = list_remote($git); | |
118 | my $branch = list_branch($git); | |
119 | ||
120 | sub update_ls_remote { | |
121 | my ($harder, $info) = @_; | |
122 | ||
123 | return if (($harder == 0) || | |
124 | (($harder == 1) && exists $info->{'LS_REMOTE'})); | |
125 | ||
126 | my @ref = map { | |
127 | s|^[0-9a-f]{40}\s+refs/heads/||; | |
128 | $_; | |
129 | } $git->command(qw(ls-remote --heads), $info->{'URL'}); | |
130 | $info->{'LS_REMOTE'} = \@ref; | |
131 | } | |
132 | ||
133 | sub show_wildcard_mapping { | |
134 | my ($forced, $ours, $ls) = @_; | |
135 | my %refs; | |
136 | for (@$ls) { | |
137 | $refs{$_} = 01; # bit #0 to say "they have" | |
138 | } | |
139 | for ($git->command('for-each-ref', "refs/remotes/$ours")) { | |
140 | chomp; | |
141 | next unless (s|^[0-9a-f]{40}\s[a-z]+\srefs/remotes/$ours/||); | |
142 | next if ($_ eq 'HEAD'); | |
143 | $refs{$_} ||= 0; | |
144 | $refs{$_} |= 02; # bit #1 to say "we have" | |
145 | } | |
146 | my (@new, @stale, @tracked); | |
147 | for (sort keys %refs) { | |
148 | my $have = $refs{$_}; | |
149 | if ($have == 1) { | |
150 | push @new, $_; | |
151 | } | |
152 | elsif ($have == 2) { | |
153 | push @stale, $_; | |
154 | } | |
155 | elsif ($have == 3) { | |
156 | push @tracked, $_; | |
157 | } | |
158 | } | |
159 | if (@new) { | |
160 | print " New remote branches (next fetch will store in remotes/$ours)\n"; | |
161 | print " @new\n"; | |
162 | } | |
163 | if (@stale) { | |
164 | print " Stale tracking branches in remotes/$ours (you'd better remove them)\n"; | |
165 | print " @stale\n"; | |
166 | } | |
167 | if (@tracked) { | |
168 | print " Tracked remote branches\n"; | |
169 | print " @tracked\n"; | |
170 | } | |
171 | } | |
172 | ||
173 | sub show_mapping { | |
174 | my ($name, $info) = @_; | |
175 | my $fetch = $info->{'FETCH'}; | |
176 | my $ls = $info->{'LS_REMOTE'}; | |
177 | my (@stale, @tracked); | |
178 | ||
179 | for (@$fetch) { | |
180 | next unless (/(\+)?([^:]+):(.*)/); | |
181 | my ($forced, $theirs, $ours) = ($1, $2, $3); | |
182 | if ($theirs eq 'refs/heads/*' && | |
183 | $ours =~ /^refs\/remotes\/(.*)\/\*$/) { | |
184 | # wildcard mapping | |
185 | show_wildcard_mapping($forced, $1, $ls); | |
186 | } | |
187 | elsif ($theirs =~ /\*/ || $ours =~ /\*/) { | |
188 | print STDERR "Warning: unrecognized mapping in remotes.$name.fetch: $_\n"; | |
189 | } | |
190 | elsif ($theirs =~ s|^refs/heads/||) { | |
191 | if (!grep { $_ eq $theirs } @$ls) { | |
192 | push @stale, $theirs; | |
193 | } | |
194 | elsif ($ours ne '') { | |
195 | push @tracked, $theirs; | |
196 | } | |
197 | } | |
198 | } | |
199 | if (@stale) { | |
200 | print " Stale tracking branches in remotes/$name (you'd better remove them)\n"; | |
201 | print " @stale\n"; | |
202 | } | |
203 | if (@tracked) { | |
204 | print " Tracked remote branches\n"; | |
205 | print " @tracked\n"; | |
206 | } | |
207 | } | |
208 | ||
209 | sub show_remote { | |
210 | my ($name, $ls_remote) = @_; | |
211 | if (!exists $remote->{$name}) { | |
212 | print STDERR "No such remote $name\n"; | |
213 | return; | |
214 | } | |
215 | my $info = $remote->{$name}; | |
216 | update_ls_remote($ls_remote, $info); | |
217 | ||
218 | print "* remote $name\n"; | |
219 | print " URL: $info->{'URL'}\n"; | |
220 | for my $branchname (sort keys %$branch) { | |
221 | next if ($branch->{$branchname}{'REMOTE'} ne $name); | |
222 | my @merged = map { | |
223 | s|^refs/heads/||; | |
224 | $_; | |
225 | } split(' ',"@{$branch->{$branchname}{'MERGE'}}"); | |
226 | next unless (@merged); | |
227 | print " Remote branch(es) merged with 'git pull' while on branch $branchname\n"; | |
228 | print " @merged\n"; | |
229 | } | |
230 | if ($info->{'LS_REMOTE'}) { | |
231 | show_mapping($name, $info); | |
232 | } | |
233 | } | |
234 | ||
235 | sub add_remote { | |
236 | my ($name, $url) = @_; | |
237 | if (exists $remote->{$name}) { | |
238 | print STDERR "remote $name already exists.\n"; | |
239 | exit(1); | |
240 | } | |
241 | $git->command('repo-config', "remote.$name.url", $url); | |
242 | $git->command('repo-config', "remote.$name.fetch", | |
243 | "+refs/heads/*:refs/remotes/$name/*"); | |
244 | } | |
245 | ||
246 | if (!@ARGV) { | |
247 | for (sort keys %$remote) { | |
248 | print "$_\n"; | |
249 | } | |
250 | } | |
251 | elsif ($ARGV[0] eq 'show') { | |
252 | my $ls_remote = 1; | |
253 | my $i; | |
254 | for ($i = 1; $i < @ARGV; $i++) { | |
255 | if ($ARGV[$i] eq '-n') { | |
256 | $ls_remote = 0; | |
257 | } | |
258 | else { | |
259 | last; | |
260 | } | |
261 | } | |
262 | if ($i >= @ARGV) { | |
263 | print STDERR "Usage: git remote show <remote>\n"; | |
264 | exit(1); | |
265 | } | |
266 | for (; $i < @ARGV; $i++) { | |
267 | show_remote($ARGV[$i], $ls_remote); | |
268 | } | |
269 | } | |
270 | elsif ($ARGV[0] eq 'add') { | |
271 | if (@ARGV != 3) { | |
272 | print STDERR "Usage: git remote add <name> <url>\n"; | |
273 | exit(1); | |
274 | } | |
275 | add_remote($ARGV[1], $ARGV[2]); | |
276 | } | |
277 |