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 ($$$$) { #{{{
62 my $mergerc = $config{mtnmergerc};
64 my $child = open(MTNMERGE, "-|");
66 open STDERR, ">&STDOUT";
67 exec("mtn", "--root=$config{mtnrootdir}", "--rcfile",
68 $mergerc, "explicit_merge", $leftRev, $rightRev,
69 $branch, "--author", $author, "--key",
70 $config{mtnkey}) || error("mtn merge failed to run");
74 if (/^mtn.\s.merged.\s($sha1_pattern)$/) {
79 close MTNMERGE || return undef;
81 debug("merged $leftRev, $rightRev to make $mergeRev");
86 sub commit_file_to_new_rev($$$$$$$$) { #{{{
90 my $newFileContents=shift;
97 my ($out, $err) = $automator->call("put_file", $oldFileID, $newFileContents);
98 my ($newFileID) = ($out =~ m/^($sha1_pattern)$/);
99 error("Failed to store file data for $wsfilename in repository")
100 if (! defined $newFileID || length $newFileID != 40);
102 # get the mtn filename rather than the workspace filename
103 ($out, $err) = $automator->call("get_corresponding_path", $oldrev, $wsfilename, $oldrev);
104 my ($filename) = ($out =~ m/^file "(.*)"$/);
105 error("Couldn't find monotone repository path for file $wsfilename") if (! $filename);
106 debug("Converted ws filename of $wsfilename to repos filename of $filename");
108 # then stick in a new revision for this file
109 my $manifest = "format_version \"1\"\n\n".
110 "new_manifest [0000000000000000000000000000000000000000]\n\n".
111 "old_revision [$oldrev]\n\n".
112 "patch \"$filename\"\n".
113 " from [$oldFileID]\n".
114 " to [$newFileID]\n";
115 ($out, $err) = $automator->call("put_revision", $manifest);
116 my ($newRevID) = ($out =~ m/^($sha1_pattern)$/);
117 error("Unable to make new monotone repository revision")
118 if (! defined $newRevID || length $newRevID != 40);
119 debug("put revision: $newRevID");
121 # now we need to add certs for this revision...
122 # author, branch, changelog, date
123 $automator->call("cert", $newRevID, "author", $author);
124 $automator->call("cert", $newRevID, "branch", $branch);
125 $automator->call("cert", $newRevID, "changelog", $message);
126 $automator->call("cert", $newRevID, "date",
127 time2str("%Y-%m-%dT%T", time, "UTC"));
129 debug("Added certs for rev: $newRevID");
133 sub check_mergerc () { #{{{
134 my $mergerc = $config{mtnmergerc};
135 if (! -r $mergerc ) {
136 debug("$mergerc doesn't exist. Creating file with default mergers.");
137 open (my $out, ">", $mergerc) or error("can't open $mergerc: $!");
143 sub read_certs ($$) { #{{{
146 my @results = $automator->call("certs", $rev);
149 my $line = $results[0];
150 while ($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) {
163 sub get_changed_files ($$) { #{{{
167 my @results = $automator->call("get_revision", $rev);
168 my $changes=$results[0];
173 while ($changes =~ m/\s*(add_file|patch|delete|rename)\s"(.*?)(?<!\\)"\n/sg) {
175 # don't add the same file multiple times
176 if (! $seen{$file}) {
185 sub rcs_update () { #{{{
188 if (defined($config{mtnsync}) && $config{mtnsync}) {
189 if (system("mtn", "--root=$config{mtnrootdir}", "sync",
190 "--quiet", "--ticker=none",
191 "--key", $config{mtnkey}) != 0) {
192 debug("monotone sync failed before update");
196 if (system("mtn", "--root=$config{mtnrootdir}", "update", "--quiet") != 0) {
197 debug("monotone update failed");
201 sub rcs_prepedit ($) { #{{{
206 # For monotone, return the revision of the file when
211 sub rcs_commit ($$$;$$) { #{{{
212 # Tries to commit the page; returns undef on _success_ and
213 # a version of the page with the rcs's conflict markers on failure.
214 # The file is relative to the srcdir.
223 $author="Web user: " . $user;
225 elsif (defined $ipaddr) {
226 $author="Web IP: " . $ipaddr;
229 $author="Web: Anonymous";
234 my ($oldrev)= $rcstoken=~ m/^($sha1_pattern)$/; # untaint
236 if (defined $rev && defined $oldrev && $rev ne $oldrev) {
237 my $automator = Monotone->new();
238 $automator->open_args("--root", $config{mtnrootdir}, "--key", $config{mtnkey});
240 # Something has been committed, has this file changed?
242 $automator->setOpts("r", $oldrev, "r", $rev);
243 ($out, $err) = $automator->call("content_diff", $file);
244 debug("Problem committing $file") if ($err ne "");
248 # Commit a revision with just this file changed off
251 # first get the contents
252 debug("File changed: forming branch");
253 my $newfile=readfile("$config{srcdir}/$file");
255 # then get the old content ID from the diff
256 if ($diff !~ m/^---\s$file\s+($sha1_pattern)$/m) {
257 error("Unable to find previous file ID for $file");
261 # get the branch we're working in
262 ($out, $err) = $automator->call("get_option", "branch");
264 error("Illegal branch name in monotone workspace") if ($out !~ m/^([-\@\w\.]+)$/);
267 # then put the new content into the DB (and record the new content ID)
268 my $newRevID = commit_file_to_new_rev($automator, $file, $oldFileID, $newfile, $oldrev, $branch, $author, $message);
272 # if we made it to here then the file has been committed... revert the local copy
273 if (system("mtn", "--root=$config{mtnrootdir}", "revert", $file) != 0) {
274 debug("Unable to revert $file after merge on conflicted commit!");
276 debug("Divergence created! Attempting auto-merge.");
280 # see if it will merge cleanly
281 $ENV{MTN_MERGE}="fail";
282 my $mergeResult = mtn_merge($newRevID, $rev, $branch, $author);
285 # push any changes so far
286 if (defined($config{mtnsync}) && $config{mtnsync}) {
287 if (system("mtn", "--root=$config{mtnrootdir}", "push", "--quiet", "--ticker=none", "--key", $config{mtnkey}) != 0) {
288 debug("monotone push failed");
292 if (defined($mergeResult)) {
293 # everything is merged - bring outselves up to date
294 if (system("mtn", "--root=$config{mtnrootdir}",
295 "update", "-r", $mergeResult) != 0) {
296 debug("Unable to update to rev $mergeResult after merge on conflicted commit!");
300 debug("Auto-merge failed. Using diff-merge to add conflict markers.");
302 $ENV{MTN_MERGE}="diffutils_force";
303 $mergeResult = mtn_merge($newRevID, $rev, $branch, $author);
306 if (!defined($mergeResult)) {
307 debug("Unable to insert conflict markers!");
308 error("Your commit succeeded. Unfortunately, someone else committed something to the same ".
309 "part of the wiki at the same time. Both versions are stored in the monotone repository, ".
310 "but at present the different versions cannot be reconciled through the web interface. ".
311 "Please use the non-web interface to resolve the conflicts.");
314 if (system("mtn", "--root=$config{mtnrootdir}",
315 "update", "-r", $mergeResult) != 0) {
316 debug("Unable to update to rev $mergeResult after conflict-enhanced merge on conflicted commit!");
319 # return "conflict enhanced" file to the user
320 # for cleanup note, this relies on the fact
321 # that ikiwiki seems to call rcs_prepedit()
322 # again after we return
323 return readfile("$config{srcdir}/$file");
330 # If we reached here then the file we're looking at hasn't changed
331 # since $oldrev. Commit it.
333 if (system("mtn", "--root=$config{mtnrootdir}", "commit", "--quiet",
334 "--author", $author, "--key", $config{mtnkey}, "-m",
335 possibly_foolish_untaint($message), $file) != 0) {
336 debug("Traditional commit failed! Returning data as conflict.");
337 my $conflict=readfile("$config{srcdir}/$file");
338 if (system("mtn", "--root=$config{mtnrootdir}", "revert",
339 "--quiet", $file) != 0) {
340 debug("monotone revert failed");
344 if (defined($config{mtnsync}) && $config{mtnsync}) {
345 if (system("mtn", "--root=$config{mtnrootdir}", "push",
346 "--quiet", "--ticker=none", "--key",
347 $config{mtnkey}) != 0) {
348 debug("monotone push failed");
352 return undef # success
355 sub rcs_add ($) { #{{{
360 if (system("mtn", "--root=$config{mtnrootdir}", "add", "--quiet",
362 error("Monotone add failed");
366 sub rcs_recentchanges ($) { #{{{
372 # use log --brief to get a list of revs, as this
373 # gives the results in a nice order
374 # (otherwise we'd have to do our own date sorting)
378 my $child = open(MTNLOG, "-|");
380 exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
381 "--brief") || error("mtn log failed to run");
384 while (($num >= 0) and (my $line = <MTNLOG>)) {
385 if ($line =~ m/^($sha1_pattern)/) {
390 close MTNLOG || debug("mtn log exited $?");
392 my $automator = Monotone->new();
393 $automator->open(undef, $config{mtnrootdir});
396 my $rev = shift @revs;
397 # first go through and figure out the messages, etc
399 my $certs = [read_certs($automator, $rev)];
404 my (@pages, @message);
406 foreach my $cert (@$certs) {
407 if ($cert->{signature} eq "ok" &&
408 $cert->{trust} eq "trusted") {
409 if ($cert->{name} eq "author") {
410 $user = $cert->{value};
411 # detect the source of the commit
413 if ($cert->{key} eq $config{mtnkey}) {
416 $committype = "monotone";
418 } elsif ($cert->{name} eq "date") {
419 $when = str2time($cert->{value}, 'UTC');
420 } elsif ($cert->{name} eq "changelog") {
421 my $messageText = $cert->{value};
422 # split the changelog into multiple
424 foreach my $msgline (split(/\n/, $messageText)) {
425 push @message, { line => $msgline };
431 my @changed_files = get_changed_files($automator, $rev);
434 my ($out, $err) = $automator->call("parents", $rev);
435 my @parents = ($out =~ m/^($sha1_pattern)$/);
436 my $parent = $parents[0];
438 foreach $file (@changed_files) {
439 next unless length $file;
441 if (defined $config{diffurl} and (@parents == 1)) {
442 my $diffurl=$config{diffurl};
443 $diffurl=~s/\[\[r1\]\]/$parent/g;
444 $diffurl=~s/\[\[r2\]\]/$rev/g;
445 $diffurl=~s/\[\[file\]\]/$file/g;
447 page => pagename($file),
453 page => pagename($file),
461 committype => $committype,
463 message => [@message],
473 sub rcs_getctime ($) { #{{{
478 my $child = open(MTNLOG, "-|");
480 exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
481 "--brief", $file) || error("mtn log $file failed to run");
486 if (/^($sha1_pattern)/) {
490 close MTNLOG || debug("mtn log $file exited $?");
492 if (! defined $firstRev) {
493 debug "failed to parse mtn log for $file";
497 my $automator = Monotone->new();
498 $automator->open(undef, $config{mtnrootdir});
500 my $certs = [read_certs($automator, $firstRev)];
506 foreach my $cert (@$certs) {
507 if ($cert->{signature} eq "ok" && $cert->{trust} eq "trusted") {
508 if ($cert->{name} eq "date") {
509 $date = $cert->{value};
514 if (! defined $date) {
515 debug "failed to find date cert for revision $firstRev when looking for creation time of $file";
519 $date=str2time($date, 'UTC');
520 debug("found ctime ".localtime($date)." for $file");
526 # default mergerc content
528 function local_execute_redirected(stdin, stdout, stderr, path, ...)
532 pid = spawn_redirected(stdin, stdout, stderr, path, unpack(arg))
533 if (pid ~= -1) then ret, pid = wait(pid) end
536 if (not execute_redirected) then -- use standard function if available
537 execute_redirected = local_execute_redirected
539 if (not mergers.fail) then -- use standard merger if available
541 cmd = function (tbl) return false end,
542 available = function () return true end,
543 wanted = function () return true end
546 mergers.diffutils_force = {
548 local ret = execute_redirected(
555 "--label", string.format("[Yours]", tbl.left_path ),
556 "--label", string.format("[Original]", tbl.anc_path ),
557 "--label", string.format("[Theirs]", tbl.right_path),
563 io.write(gettext("Error running GNU diffutils 3-way difference tool 'diff3'"))
570 return program_exists_in_path("diff3");