6 use Date::Parse qw(str2time);
7 use Date::Format qw(time2str);
11 my $sha1_pattern = qr/[0-9a-fA-F]{40}/; # pattern to validate sha1sums
13 sub check_config() { #{{{
14 if (!defined($config{mtnrootdir})) {
15 $config{mtnrootdir} = $config{srcdir};
17 if (! -d "$config{mtnrootdir}/_MTN") {
18 error("Ikiwiki srcdir does not seem to be a Monotone workspace (or set the mtnrootdir)!");
21 if (!defined($config{mtnmergerc})) {
22 $config{mtnmergerc} = "$config{mtnrootdir}/_MTN/mergerc";
26 or error("Cannot chdir to $config{srcdir}: $!");
30 my $sha1 = `mtn --root=$config{mtnrootdir} automate get_base_revision_id`;
32 ($sha1) = $sha1 =~ m/($sha1_pattern)/; # sha1 is untainted now
34 debug("Unable to get base revision for '$config{srcdir}'.")
40 sub get_rev_auto ($) { #{{{
43 my @results = $automator->call("get_base_revision_id");
45 my $sha1 = $results[0];
46 ($sha1) = $sha1 =~ m/($sha1_pattern)/; # sha1 is untainted now
48 debug("Unable to get base revision for '$config{srcdir}'.")
54 sub mtn_merge ($$$$) { #{{{
62 my $mergerc = $config{mtnmergerc};
64 my $child = open(MTNMERGE, "-|");
66 open STDERR, ">&STDOUT";
67 exec("mtn", "--root=$config{mtnrootdir}", "--rcfile",
68 $mergerc, "explicit_merge", $leftRev, $rightRev,
69 $branch, "--author", $author, "--key",
70 $config{mtnkey}) || error("mtn merge failed to run");
74 if (/^mtn.\s.merged.\s($sha1_pattern)$/) {
79 close MTNMERGE || return undef;
81 debug("merged $leftRev, $rightRev to make $mergeRev");
86 sub commit_file_to_new_rev($$$$$$$$) { #{{{
90 my $newFileContents=shift;
97 my ($out, $err) = $automator->call("put_file", $oldFileID, $newFileContents);
98 my ($newFileID) = ($out =~ m/^($sha1_pattern)$/);
99 error("Failed to store file data for $wsfilename in repository")
100 if (! defined $newFileID || length $newFileID != 40);
102 # get the mtn filename rather than the workspace filename
103 ($out, $err) = $automator->call("get_corresponding_path", $oldrev, $wsfilename, $oldrev);
104 my ($filename) = ($out =~ m/^file "(.*)"$/);
105 error("Couldn't find monotone repository path for file $wsfilename") if (! $filename);
106 debug("Converted ws filename of $wsfilename to repos filename of $filename");
108 # then stick in a new revision for this file
109 my $manifest = "format_version \"1\"\n\n".
110 "new_manifest [0000000000000000000000000000000000000000]\n\n".
111 "old_revision [$oldrev]\n\n".
112 "patch \"$filename\"\n".
113 " from [$oldFileID]\n".
114 " to [$newFileID]\n";
115 ($out, $err) = $automator->call("put_revision", $manifest);
116 my ($newRevID) = ($out =~ m/^($sha1_pattern)$/);
117 error("Unable to make new monotone repository revision")
118 if (! defined $newRevID || length $newRevID != 40);
119 debug("put revision: $newRevID");
121 # now we need to add certs for this revision...
122 # author, branch, changelog, date
123 $automator->call("cert", $newRevID, "author", $author);
124 $automator->call("cert", $newRevID, "branch", $branch);
125 $automator->call("cert", $newRevID, "changelog", $message);
126 $automator->call("cert", $newRevID, "date",
127 time2str("%Y-%m-%dT%T", time, "UTC"));
129 debug("Added certs for rev: $newRevID");
133 sub check_mergerc () { #{{{
134 my $mergerc = $config{mtnmergerc};
135 if (! -r $mergerc ) {
136 debug("$mergerc doesn't exist. Creating file with default mergers.");
137 open (my $out, ">", $mergerc) or error("can't open $mergerc: $!");
140 function note_netsync_revision_received(new_id, revision, certs, session_id)
141 execute("$config{mtnrootdir}/_MTN/ikiwiki-netsync-hook", new_id)
148 sub read_certs ($$) { #{{{
151 my @results = $automator->call("certs", $rev);
154 my $line = $results[0];
155 while ($line =~ m/\s+key\s"(.*?)"\nsignature\s"(ok|bad|unknown)"\n\s+name\s"(.*?)"\n\s+value\s"(.*?)"\n\s+trust\s"(trusted|untrusted)"\n/sg) {
168 sub get_changed_files ($$) { #{{{
172 my @results = $automator->call("get_revision", $rev);
173 my $changes=$results[0];
178 while ($changes =~ m/\s*(add_file|patch|delete|rename)\s"(.*?)(?<!\\)"\n/sg) {
180 # don't add the same file multiple times
181 if (! $seen{$file}) {
190 sub rcs_update () { #{{{
193 if (defined($config{mtnsync}) && $config{mtnsync}) {
194 if (system("mtn", "--root=$config{mtnrootdir}", "sync",
195 "--quiet", "--ticker=none",
196 "--key", $config{mtnkey}) != 0) {
197 debug("monotone sync failed before update");
201 if (system("mtn", "--root=$config{mtnrootdir}", "update", "--quiet") != 0) {
202 debug("monotone update failed");
206 sub rcs_prepedit ($) { #{{{
211 # For monotone, return the revision of the file when
216 sub rcs_commit ($$$;$$) { #{{{
217 # Tries to commit the page; returns undef on _success_ and
218 # a version of the page with the rcs's conflict markers on failure.
219 # The file is relative to the srcdir.
228 $author="Web user: " . $user;
230 elsif (defined $ipaddr) {
231 $author="Web IP: " . $ipaddr;
234 $author="Web: Anonymous";
239 my ($oldrev)= $rcstoken=~ m/^($sha1_pattern)$/; # untaint
241 if (defined $rev && defined $oldrev && $rev ne $oldrev) {
242 my $automator = Monotone->new();
243 $automator->open_args("--root", $config{mtnrootdir}, "--key", $config{mtnkey});
245 # Something has been committed, has this file changed?
247 $automator->setOpts("r", $oldrev, "r", $rev);
248 ($out, $err) = $automator->call("content_diff", $file);
249 debug("Problem committing $file") if ($err ne "");
253 # Commit a revision with just this file changed off
256 # first get the contents
257 debug("File changed: forming branch");
258 my $newfile=readfile("$config{srcdir}/$file");
260 # then get the old content ID from the diff
261 if ($diff !~ m/^---\s$file\s+($sha1_pattern)$/m) {
262 error("Unable to find previous file ID for $file");
266 # get the branch we're working in
267 ($out, $err) = $automator->call("get_option", "branch");
269 error("Illegal branch name in monotone workspace") if ($out !~ m/^([-\@\w\.]+)$/);
272 # then put the new content into the DB (and record the new content ID)
273 my $newRevID = commit_file_to_new_rev($automator, $file, $oldFileID, $newfile, $oldrev, $branch, $author, $message);
277 # if we made it to here then the file has been committed... revert the local copy
278 if (system("mtn", "--root=$config{mtnrootdir}", "revert", $file) != 0) {
279 debug("Unable to revert $file after merge on conflicted commit!");
281 debug("Divergence created! Attempting auto-merge.");
285 # see if it will merge cleanly
286 $ENV{MTN_MERGE}="fail";
287 my $mergeResult = mtn_merge($newRevID, $rev, $branch, $author);
290 # push any changes so far
291 if (defined($config{mtnsync}) && $config{mtnsync}) {
292 if (system("mtn", "--root=$config{mtnrootdir}", "push", "--quiet", "--ticker=none", "--key", $config{mtnkey}) != 0) {
293 debug("monotone push failed");
297 if (defined($mergeResult)) {
298 # everything is merged - bring outselves up to date
299 if (system("mtn", "--root=$config{mtnrootdir}",
300 "update", "-r", $mergeResult) != 0) {
301 debug("Unable to update to rev $mergeResult after merge on conflicted commit!");
305 debug("Auto-merge failed. Using diff-merge to add conflict markers.");
307 $ENV{MTN_MERGE}="diffutils_force";
308 $mergeResult = mtn_merge($newRevID, $rev, $branch, $author);
311 if (!defined($mergeResult)) {
312 debug("Unable to insert conflict markers!");
313 error("Your commit succeeded. Unfortunately, someone else committed something to the same ".
314 "part of the wiki at the same time. Both versions are stored in the monotone repository, ".
315 "but at present the different versions cannot be reconciled through the web interface. ".
316 "Please use the non-web interface to resolve the conflicts.");
319 if (system("mtn", "--root=$config{mtnrootdir}",
320 "update", "-r", $mergeResult) != 0) {
321 debug("Unable to update to rev $mergeResult after conflict-enhanced merge on conflicted commit!");
324 # return "conflict enhanced" file to the user
325 # for cleanup note, this relies on the fact
326 # that ikiwiki seems to call rcs_prepedit()
327 # again after we return
328 return readfile("$config{srcdir}/$file");
335 # If we reached here then the file we're looking at hasn't changed
336 # since $oldrev. Commit it.
338 if (system("mtn", "--root=$config{mtnrootdir}", "commit", "--quiet",
339 "--author", $author, "--key", $config{mtnkey}, "-m",
340 possibly_foolish_untaint($message), $file) != 0) {
341 debug("Traditional commit failed! Returning data as conflict.");
342 my $conflict=readfile("$config{srcdir}/$file");
343 if (system("mtn", "--root=$config{mtnrootdir}", "revert",
344 "--quiet", $file) != 0) {
345 debug("monotone revert failed");
349 if (defined($config{mtnsync}) && $config{mtnsync}) {
350 if (system("mtn", "--root=$config{mtnrootdir}", "push",
351 "--quiet", "--ticker=none", "--key",
352 $config{mtnkey}) != 0) {
353 debug("monotone push failed");
357 return undef # success
360 sub rcs_add ($) { #{{{
365 if (system("mtn", "--root=$config{mtnrootdir}", "add", "--quiet",
367 error("Monotone add failed");
371 sub rcs_recentchanges ($) { #{{{
377 # use log --brief to get a list of revs, as this
378 # gives the results in a nice order
379 # (otherwise we'd have to do our own date sorting)
383 my $child = open(MTNLOG, "-|");
385 exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
386 "--brief") || error("mtn log failed to run");
389 while (($num >= 0) and (my $line = <MTNLOG>)) {
390 if ($line =~ m/^($sha1_pattern)/) {
395 close MTNLOG || debug("mtn log exited $?");
397 my $automator = Monotone->new();
398 $automator->open(undef, $config{mtnrootdir});
401 my $rev = shift @revs;
402 # first go through and figure out the messages, etc
404 my $certs = [read_certs($automator, $rev)];
409 my (@pages, @message);
411 foreach my $cert (@$certs) {
412 if ($cert->{signature} eq "ok" &&
413 $cert->{trust} eq "trusted") {
414 if ($cert->{name} eq "author") {
415 $user = $cert->{value};
416 # detect the source of the commit
418 if ($cert->{key} eq $config{mtnkey}) {
421 $committype = "monotone";
423 } elsif ($cert->{name} eq "date") {
424 $when = str2time($cert->{value}, 'UTC');
425 } elsif ($cert->{name} eq "changelog") {
426 my $messageText = $cert->{value};
427 # split the changelog into multiple
429 foreach my $msgline (split(/\n/, $messageText)) {
430 push @message, { line => $msgline };
436 my @changed_files = get_changed_files($automator, $rev);
439 my ($out, $err) = $automator->call("parents", $rev);
440 my @parents = ($out =~ m/^($sha1_pattern)$/);
441 my $parent = $parents[0];
443 foreach $file (@changed_files) {
444 next unless length $file;
446 if (defined $config{diffurl} and (@parents == 1)) {
447 my $diffurl=$config{diffurl};
448 $diffurl=~s/\[\[r1\]\]/$parent/g;
449 $diffurl=~s/\[\[r2\]\]/$rev/g;
450 $diffurl=~s/\[\[file\]\]/$file/g;
452 page => pagename($file),
458 page => pagename($file),
466 committype => $committype,
468 message => [@message],
478 sub rcs_getctime ($) { #{{{
483 my $child = open(MTNLOG, "-|");
485 exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
486 "--brief", $file) || error("mtn log $file failed to run");
491 if (/^($sha1_pattern)/) {
495 close MTNLOG || debug("mtn log $file exited $?");
497 if (! defined $firstRev) {
498 debug "failed to parse mtn log for $file";
502 my $automator = Monotone->new();
503 $automator->open(undef, $config{mtnrootdir});
505 my $certs = [read_certs($automator, $firstRev)];
511 foreach my $cert (@$certs) {
512 if ($cert->{signature} eq "ok" && $cert->{trust} eq "trusted") {
513 if ($cert->{name} eq "date") {
514 $date = $cert->{value};
519 if (! defined $date) {
520 debug "failed to find date cert for revision $firstRev when looking for creation time of $file";
524 $date=str2time($date, 'UTC');
525 debug("found ctime ".localtime($date)." for $file");
531 # default mergerc content
533 function local_execute_redirected(stdin, stdout, stderr, path, ...)
537 pid = spawn_redirected(stdin, stdout, stderr, path, unpack(arg))
538 if (pid ~= -1) then ret, pid = wait(pid) end
541 if (not execute_redirected) then -- use standard function if available
542 execute_redirected = local_execute_redirected
544 if (not mergers.fail) then -- use standard merger if available
546 cmd = function (tbl) return false end,
547 available = function () return true end,
548 wanted = function () return true end
551 mergers.diffutils_force = {
553 local ret = execute_redirected(
560 "--label", string.format("[Yours]", tbl.left_path ),
561 "--label", string.format("[Original]", tbl.anc_path ),
562 "--label", string.format("[Theirs]", tbl.right_path),
568 io.write(gettext("Error running GNU diffutils 3-way difference tool 'diff3'"))
575 return program_exists_in_path("diff3");