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", $rev);
243 #my ($out, $err) = $automator->call("content_diff", $file);
244 #debug("Problem committing $file") if ($err ne "");
245 # FIXME: use of $file in these backticks is not wise from a
246 # security POV. Probably safe, but should be avoided
248 # At the moment the backticks are used because the above call using the automate
249 # interface was failing. When that bug in monotone is fixed, we should switch
251 my $diff = `mtn --root=$config{mtnrootdir} au content_diff -r $oldrev -r $rev $file`; # was just $out;
254 # Commit a revision with just this file changed off
257 # first get the contents
258 debug("File changed: forming branch");
259 my $newfile=readfile("$config{srcdir}/$file");
261 # then get the old content ID from the diff
262 if ($diff !~ m/^---\s$file\s+($sha1_pattern)$/m) {
263 error("Unable to find previous file ID for $file");
267 # get the branch we're working in
268 ($out, $err) = $automator->call("get_option", "branch");
270 error("Illegal branch name in monotone workspace") if ($out !~ m/^([-\@\w\.]+)$/);
273 # then put the new content into the DB (and record the new content ID)
274 my $newRevID = commit_file_to_new_rev($automator, $file, $oldFileID, $newfile, $oldrev, $branch, $author, $message);
278 # if we made it to here then the file has been committed... revert the local copy
279 if (system("mtn", "--root=$config{mtnrootdir}", "revert", $file) != 0) {
280 debug("Unable to revert $file after merge on conflicted commit!");
282 debug("Divergence created! Attempting auto-merge.");
286 # see if it will merge cleanly
287 $ENV{MTN_MERGE}="fail";
288 my $mergeResult = mtn_merge($newRevID, $rev, $branch, $author);
291 # push any changes so far
292 if (defined($config{mtnsync}) && $config{mtnsync}) {
293 if (system("mtn", "--root=$config{mtnrootdir}", "push", "--quiet", "--ticker=none", "--key", $config{mtnkey}) != 0) {
294 debug("monotone push failed");
298 if (defined($mergeResult)) {
299 # everything is merged - bring outselves up to date
300 if (system("mtn", "--root=$config{mtnrootdir}",
301 "update", "-r", $mergeResult) != 0) {
302 debug("Unable to update to rev $mergeResult after merge on conflicted commit!");
306 debug("Auto-merge failed. Using diff-merge to add conflict markers.");
308 $ENV{MTN_MERGE}="diffutils_force";
309 $mergeResult = mtn_merge($newRevID, $rev, $branch, $author);
312 if (!defined($mergeResult)) {
313 debug("Unable to insert conflict markers!");
314 error("Your commit succeeded. Unfortunately, someone else committed something to the same ".
315 "part of the wiki at the same time. Both versions are stored in the monotone repository, ".
316 "but at present the different versions cannot be reconciled through the web interface. ".
317 "Please use the non-web interface to resolve the conflicts.");
320 if (system("mtn", "--root=$config{mtnrootdir}",
321 "update", "-r", $mergeResult) != 0) {
322 debug("Unable to update to rev $mergeResult after conflict-enhanced merge on conflicted commit!");
325 # return "conflict enhanced" file to the user
326 # for cleanup note, this relies on the fact
327 # that ikiwiki seems to call rcs_prepedit()
328 # again after we return
329 return readfile("$config{srcdir}/$file");
336 # If we reached here then the file we're looking at hasn't changed
337 # since $oldrev. Commit it.
339 if (system("mtn", "--root=$config{mtnrootdir}", "commit", "--quiet",
340 "--author", $author, "--key", $config{mtnkey}, "-m",
341 possibly_foolish_untaint($message), $file) != 0) {
342 debug("Traditional commit failed! Returning data as conflict.");
343 my $conflict=readfile("$config{srcdir}/$file");
344 if (system("mtn", "--root=$config{mtnrootdir}", "revert",
345 "--quiet", $file) != 0) {
346 debug("monotone revert failed");
350 if (defined($config{mtnsync}) && $config{mtnsync}) {
351 if (system("mtn", "--root=$config{mtnrootdir}", "sync",
352 "--quiet", "--ticker=none", "--key",
353 $config{mtnkey}) != 0) {
354 debug("monotone sync failed");
358 return undef # success
361 sub rcs_add ($) { #{{{
366 if (system("mtn", "--root=$config{mtnrootdir}", "add", "--quiet",
368 error("Monotone add failed");
372 sub rcs_recentchanges ($) { #{{{
378 # use log --brief to get a list of revs, as this
379 # gives the results in a nice order
380 # (otherwise we'd have to do our own date sorting)
384 my $child = open(MTNLOG, "-|");
386 exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
387 "--brief") || error("mtn log failed to run");
390 while (($num >= 0) and (my $line = <MTNLOG>)) {
391 if ($line =~ m/^($sha1_pattern)/) {
396 close MTNLOG || debug("mtn log exited $?");
398 my $automator = Monotone->new();
399 $automator->open(undef, $config{mtnrootdir});
402 my $rev = shift @revs;
403 # first go through and figure out the messages, etc
405 my $certs = [read_certs($automator, $rev)];
410 my (@pages, @message);
412 foreach my $cert (@$certs) {
413 if ($cert->{signature} eq "ok" &&
414 $cert->{trust} eq "trusted") {
415 if ($cert->{name} eq "author") {
416 $user = $cert->{value};
417 # detect the source of the commit
419 if ($cert->{key} eq $config{mtnkey}) {
422 $committype = "monotone";
424 } elsif ($cert->{name} eq "date") {
425 $when = time - str2time($cert->{value}, 'UTC');
426 } elsif ($cert->{name} eq "changelog") {
427 my $messageText = $cert->{value};
428 # split the changelog into multiple
430 foreach my $msgline (split(/\n/, $messageText)) {
431 push @message, { line => $msgline };
437 my @changed_files = get_changed_files($automator, $rev);
440 foreach $file (@changed_files) {
442 page => pagename($file),
449 committype => $committype,
451 message => [@message],
461 sub rcs_notify () { #{{{
462 debug("The monotone rcs_notify function is currently untested. Use at own risk!");
464 if (! exists $ENV{REV}) {
465 error(gettext("REV is not set, not running from mtn post-commit hook, cannot send notifications"));
467 if ($ENV{REV} !~ m/($sha1_pattern)/) { # sha1 is untainted now
468 error(gettext("REV is not a valid revision identifier, cannot send notifications"));
474 my $automator = Monotone->new();
475 $automator->open(undef, $config{mtnrootdir});
477 my $certs = [read_certs($automator, $rev)];
482 foreach my $cert (@$certs) {
483 if ($cert->{signature} eq "ok" && $cert->{trust} eq "trusted") {
484 if ($cert->{name} eq "author") {
485 $user = $cert->{value};
486 } elsif ($cert->{name} eq "date") {
487 $when = $cert->{value};
488 } elsif ($cert->{name} eq "changelog") {
489 $message = $cert->{value};
494 my @changed_pages = get_changed_files($automator, $rev);
498 require IkiWiki::UserInfo;
504 `mtn --root=$config{mtnrootdir} au content_diff -r $rev`;
506 $user, @changed_pages);
509 sub rcs_getctime ($) { #{{{
514 my $child = open(MTNLOG, "-|");
516 exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
517 "--brief", $file) || error("mtn log $file failed to run");
522 if (/^($sha1_pattern)/) {
526 close MTNLOG || debug("mtn log $file exited $?");
528 if (! defined $firstRev) {
529 debug "failed to parse mtn log for $file";
533 my $automator = Monotone->new();
534 $automator->open(undef, $config{mtnrootdir});
536 my $certs = [read_certs($automator, $firstRev)];
542 foreach my $cert (@$certs) {
543 if ($cert->{signature} eq "ok" && $cert->{trust} eq "trusted") {
544 if ($cert->{name} eq "date") {
545 $date = $cert->{value};
550 if (! defined $date) {
551 debug "failed to find date cert for revision $firstRev when looking for creation time of $file";
555 $date=str2time($date, 'UTC');
556 debug("found ctime ".localtime($date)." for $file");
562 # default mergerc content
564 function local_execute_redirected(stdin, stdout, stderr, path, ...)
568 pid = spawn_redirected(stdin, stdout, stderr, path, unpack(arg))
569 if (pid ~= -1) then ret, pid = wait(pid) end
572 if (not execute_redirected) then -- use standard function if available
573 execute_redirected = local_execute_redirected
575 if (not mergers.fail) then -- use standard merger if available
577 cmd = function (tbl) return false end,
578 available = function () return true end,
579 wanted = function () return true end
582 mergers.diffutils_force = {
584 local ret = execute_redirected(
591 "--label", string.format("[Yours]", tbl.left_path ),
592 "--label", string.format("[Original]", tbl.anc_path ),
593 "--label", string.format("[Theirs]", tbl.right_path),
599 io.write(gettext("Error running GNU diffutils 3-way difference tool 'diff3'"))
606 return program_exists_in_path("diff3");