693 lines
19 KiB
Perl
693 lines
19 KiB
Perl
#!/usr/bin/perl
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package IkiWiki::Plugin::monotone;
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use warnings;
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use strict;
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use IkiWiki;
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use Monotone;
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use Date::Parse qw(str2time);
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use Date::Format qw(time2str);
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my $sha1_pattern = qr/[0-9a-fA-F]{40}/; # pattern to validate sha1sums
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sub import { #{{{
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hook(type => "checkconfig", id => "monotone", call => \&checkconfig);
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hook(type => "getsetup", id => "monotone", call => \&getsetup);
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hook(type => "rcs", id => "rcs_update", call => \&rcs_update);
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hook(type => "rcs", id => "rcs_prepedit", call => \&rcs_prepedit);
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hook(type => "rcs", id => "rcs_commit", call => \&rcs_commit);
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hook(type => "rcs", id => "rcs_commit_staged", call => \&rcs_commit_staged);
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hook(type => "rcs", id => "rcs_add", call => \&rcs_add);
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hook(type => "rcs", id => "rcs_remove", call => \&rcs_remove);
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hook(type => "rcs", id => "rcs_rename", call => \&rcs_rename);
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hook(type => "rcs", id => "rcs_recentchanges", call => \&rcs_recentchanges);
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hook(type => "rcs", id => "rcs_diff", call => \&rcs_diff);
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hook(type => "rcs", id => "rcs_getctime", call => \&rcs_getctime);
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} #}}}
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sub checkconfig () { #{{{
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if (!defined($config{mtnrootdir})) {
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$config{mtnrootdir} = $config{srcdir};
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}
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if (! -d "$config{mtnrootdir}/_MTN") {
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error("Ikiwiki srcdir does not seem to be a Monotone workspace (or set the mtnrootdir)!");
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}
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my $child = open(MTN, "-|");
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if (! $child) {
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open STDERR, ">/dev/null";
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exec("mtn", "version") || error("mtn version failed to run");
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}
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my $version=undef;
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while (<MTN>) {
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if (/^monotone (\d+\.\d+) /) {
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$version=$1;
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}
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}
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close MTN || debug("mtn version exited $?");
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if (!defined($version)) {
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error("Cannot determine monotone version");
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}
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if ($version < 0.38) {
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error("Monotone version too old, is $version but required 0.38");
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}
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if (length $config{mtn_wrapper}) {
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push @{$config{wrappers}}, {
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wrapper => $config{mtn_wrapper},
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wrappermode => (defined $config{mtn_wrappermode} ? $config{mtn_wrappermode} : "06755"),
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};
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}
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} #}}}
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sub getsetup () { #{{{
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return
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mtn_wrapper => {
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type => "string",
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example => "/srv/mtn/wiki/_MTN/ikiwiki-netsync-hook",
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description => "monotone netsync hook executable to generate",
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safe => 0, # file
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rebuild => 0,
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},
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mtn_wrappermode => {
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type => "string",
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example => '06755',
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description => "mode for mtn_wrapper (can safely be made suid)",
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safe => 0,
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rebuild => 0,
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},
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mtnkey => {
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type => "string",
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example => 'web@example.com',
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description => "your monotone key",
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safe => 1,
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rebuild => 0,
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},
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historyurl => {
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type => "string",
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example => "http://viewmtn.example.com/branch/head/filechanges/com.example.branch/[[file]]",
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description => "viewmtn url to show file history ([[file]] substituted)",
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safe => 1,
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rebuild => 1,
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},
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diffurl => {
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type => "string",
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example => "http://viewmtn.example.com/revision/diff/[[r1]]/with/[[r2]]/[[file]]",
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description => "viewmtn url to show a diff ([[r1]], [[r2]], and [[file]] substituted)",
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safe => 1,
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rebuild => 1,
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},
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mtnsync => {
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type => "boolean",
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example => 0,
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description => "sync on update and commit?",
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safe => 0, # paranoia
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rebuild => 0,
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},
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mtnrootdir => {
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type => "string",
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description => "path to your workspace (defaults to the srcdir; specify if the srcdir is a subdirectory of the workspace)",
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safe => 0, # path
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rebuild => 0,
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},
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} #}}}
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sub get_rev () { #{{{
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my $sha1 = `mtn --root=$config{mtnrootdir} automate get_base_revision_id`;
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($sha1) = $sha1 =~ m/($sha1_pattern)/; # sha1 is untainted now
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if (! $sha1) {
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debug("Unable to get base revision for '$config{srcdir}'.")
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}
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return $sha1;
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} #}}}
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sub get_rev_auto ($) { #{{{
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my $automator=shift;
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my @results = $automator->call("get_base_revision_id");
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my $sha1 = $results[0];
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($sha1) = $sha1 =~ m/($sha1_pattern)/; # sha1 is untainted now
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if (! $sha1) {
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debug("Unable to get base revision for '$config{srcdir}'.")
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}
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return $sha1;
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} #}}}
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sub mtn_merge ($$$$) { #{{{
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my $leftRev=shift;
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my $rightRev=shift;
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my $branch=shift;
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my $author=shift;
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my $mergeRev;
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my $child = open(MTNMERGE, "-|");
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if (! $child) {
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open STDERR, ">&STDOUT";
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exec("mtn", "--root=$config{mtnrootdir}",
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"explicit_merge", $leftRev, $rightRev,
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$branch, "--author", $author, "--key",
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$config{mtnkey}) || error("mtn merge failed to run");
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}
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while (<MTNMERGE>) {
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if (/^mtn.\s.merged.\s($sha1_pattern)$/) {
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$mergeRev=$1;
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}
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}
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close MTNMERGE || return undef;
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debug("merged $leftRev, $rightRev to make $mergeRev");
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return $mergeRev;
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} #}}}
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sub commit_file_to_new_rev ($$$$$$$$) { #{{{
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my $automator=shift;
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my $wsfilename=shift;
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my $oldFileID=shift;
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my $newFileContents=shift;
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my $oldrev=shift;
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my $branch=shift;
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my $author=shift;
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my $message=shift;
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#store the file
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my ($out, $err) = $automator->call("put_file", $oldFileID, $newFileContents);
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my ($newFileID) = ($out =~ m/^($sha1_pattern)$/);
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error("Failed to store file data for $wsfilename in repository")
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if (! defined $newFileID || length $newFileID != 40);
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# get the mtn filename rather than the workspace filename
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($out, $err) = $automator->call("get_corresponding_path", $oldrev, $wsfilename, $oldrev);
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my ($filename) = ($out =~ m/^file "(.*)"$/);
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error("Couldn't find monotone repository path for file $wsfilename") if (! $filename);
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debug("Converted ws filename of $wsfilename to repos filename of $filename");
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# then stick in a new revision for this file
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my $manifest = "format_version \"1\"\n\n".
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"new_manifest [0000000000000000000000000000000000000000]\n\n".
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"old_revision [$oldrev]\n\n".
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"patch \"$filename\"\n".
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" from [$oldFileID]\n".
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" to [$newFileID]\n";
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($out, $err) = $automator->call("put_revision", $manifest);
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my ($newRevID) = ($out =~ m/^($sha1_pattern)$/);
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error("Unable to make new monotone repository revision")
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if (! defined $newRevID || length $newRevID != 40);
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debug("put revision: $newRevID");
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# now we need to add certs for this revision...
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# author, branch, changelog, date
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$automator->call("cert", $newRevID, "author", $author);
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$automator->call("cert", $newRevID, "branch", $branch);
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$automator->call("cert", $newRevID, "changelog", $message);
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$automator->call("cert", $newRevID, "date",
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time2str("%Y-%m-%dT%T", time, "UTC"));
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debug("Added certs for rev: $newRevID");
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return $newRevID;
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} #}}}
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sub read_certs ($$) { #{{{
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my $automator=shift;
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my $rev=shift;
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my @results = $automator->call("certs", $rev);
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my @ret;
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my $line = $results[0];
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while ($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) {
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push @ret, {
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key => $1,
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signature => $2,
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name => $3,
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value => $4,
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trust => $5,
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};
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}
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return @ret;
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} #}}}
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sub get_changed_files ($$) { #{{{
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my $automator=shift;
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my $rev=shift;
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my @results = $automator->call("get_revision", $rev);
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my $changes=$results[0];
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my @ret;
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my %seen = ();
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while ($changes =~ m/\s*(add_file|patch|delete|rename)\s"(.*?)(?<!\\)"\n/sg) {
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my $file = $2;
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# don't add the same file multiple times
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if (! $seen{$file}) {
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push @ret, $file;
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$seen{$file} = 1;
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}
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}
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return @ret;
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} #}}}
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sub rcs_update () { #{{{
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chdir $config{srcdir}
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or error("Cannot chdir to $config{srcdir}: $!");
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if (defined($config{mtnsync}) && $config{mtnsync}) {
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if (system("mtn", "--root=$config{mtnrootdir}", "sync",
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"--quiet", "--ticker=none",
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"--key", $config{mtnkey}) != 0) {
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debug("monotone sync failed before update");
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}
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}
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if (system("mtn", "--root=$config{mtnrootdir}", "update", "--quiet") != 0) {
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debug("monotone update failed");
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}
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} #}}}
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sub rcs_prepedit ($) { #{{{
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my $file=shift;
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chdir $config{srcdir}
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or error("Cannot chdir to $config{srcdir}: $!");
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# For monotone, return the revision of the file when
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# editing begins.
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return get_rev();
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} #}}}
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sub rcs_commit ($$$;$$) { #{{{
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# Tries to commit the page; returns undef on _success_ and
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# a version of the page with the rcs's conflict markers on failure.
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# The file is relative to the srcdir.
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my $file=shift;
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my $message=shift;
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my $rcstoken=shift;
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my $user=shift;
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my $ipaddr=shift;
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my $author;
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if (defined $user) {
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$author="Web user: " . $user;
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}
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elsif (defined $ipaddr) {
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$author="Web IP: " . $ipaddr;
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}
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else {
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$author="Web: Anonymous";
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}
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chdir $config{srcdir}
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or error("Cannot chdir to $config{srcdir}: $!");
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my ($oldrev)= $rcstoken=~ m/^($sha1_pattern)$/; # untaint
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my $rev = get_rev();
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if (defined $rev && defined $oldrev && $rev ne $oldrev) {
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my $automator = Monotone->new();
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$automator->open_args("--root", $config{mtnrootdir}, "--key", $config{mtnkey});
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# Something has been committed, has this file changed?
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my ($out, $err);
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$automator->setOpts("r", $oldrev, "r", $rev);
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($out, $err) = $automator->call("content_diff", $file);
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debug("Problem committing $file") if ($err ne "");
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my $diff = $out;
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if ($diff) {
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# Commit a revision with just this file changed off
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# the old revision.
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#
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# first get the contents
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debug("File changed: forming branch");
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my $newfile=readfile("$config{srcdir}/$file");
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# then get the old content ID from the diff
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if ($diff !~ m/^---\s$file\s+($sha1_pattern)$/m) {
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error("Unable to find previous file ID for $file");
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}
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my $oldFileID = $1;
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# get the branch we're working in
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($out, $err) = $automator->call("get_option", "branch");
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chomp $out;
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error("Illegal branch name in monotone workspace") if ($out !~ m/^([-\@\w\.]+)$/);
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my $branch = $1;
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# then put the new content into the DB (and record the new content ID)
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my $newRevID = commit_file_to_new_rev($automator, $file, $oldFileID, $newfile, $oldrev, $branch, $author, $message);
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$automator->close();
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# if we made it to here then the file has been committed... revert the local copy
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if (system("mtn", "--root=$config{mtnrootdir}", "revert", $file) != 0) {
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debug("Unable to revert $file after merge on conflicted commit!");
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}
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debug("Divergence created! Attempting auto-merge.");
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# see if it will merge cleanly
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$ENV{MTN_MERGE}="fail";
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my $mergeResult = mtn_merge($newRevID, $rev, $branch, $author);
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$ENV{MTN_MERGE}="";
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# push any changes so far
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if (defined($config{mtnsync}) && $config{mtnsync}) {
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if (system("mtn", "--root=$config{mtnrootdir}", "push", "--quiet", "--ticker=none", "--key", $config{mtnkey}) != 0) {
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debug("monotone push failed");
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}
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}
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if (defined($mergeResult)) {
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# everything is merged - bring outselves up to date
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if (system("mtn", "--root=$config{mtnrootdir}",
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"update", "-r", $mergeResult) != 0) {
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debug("Unable to update to rev $mergeResult after merge on conflicted commit!");
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}
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}
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else {
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debug("Auto-merge failed. Using diff-merge to add conflict markers.");
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$ENV{MTN_MERGE}="diffutils";
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$ENV{MTN_MERGE_DIFFUTILS}="partial=true";
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$mergeResult = mtn_merge($newRevID, $rev, $branch, $author);
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$ENV{MTN_MERGE}="";
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$ENV{MTN_MERGE_DIFFUTILS}="";
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if (!defined($mergeResult)) {
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debug("Unable to insert conflict markers!");
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error("Your commit succeeded. Unfortunately, someone else committed something to the same ".
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"part of the wiki at the same time. Both versions are stored in the monotone repository, ".
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"but at present the different versions cannot be reconciled through the web interface. ".
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"Please use the non-web interface to resolve the conflicts.");
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}
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if (system("mtn", "--root=$config{mtnrootdir}",
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"update", "-r", $mergeResult) != 0) {
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debug("Unable to update to rev $mergeResult after conflict-enhanced merge on conflicted commit!");
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}
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# return "conflict enhanced" file to the user
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# for cleanup note, this relies on the fact
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# that ikiwiki seems to call rcs_prepedit()
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# again after we return
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return readfile("$config{srcdir}/$file");
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}
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return undef;
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}
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$automator->close();
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}
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# If we reached here then the file we're looking at hasn't changed
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# since $oldrev. Commit it.
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if (system("mtn", "--root=$config{mtnrootdir}", "commit", "--quiet",
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"--author", $author, "--key", $config{mtnkey}, "-m",
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IkiWiki::possibly_foolish_untaint($message), $file) != 0) {
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debug("Traditional commit failed! Returning data as conflict.");
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my $conflict=readfile("$config{srcdir}/$file");
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if (system("mtn", "--root=$config{mtnrootdir}", "revert",
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"--quiet", $file) != 0) {
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debug("monotone revert failed");
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}
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return $conflict;
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}
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if (defined($config{mtnsync}) && $config{mtnsync}) {
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if (system("mtn", "--root=$config{mtnrootdir}", "push",
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"--quiet", "--ticker=none", "--key",
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$config{mtnkey}) != 0) {
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debug("monotone push failed");
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}
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}
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return undef # success
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} #}}}
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sub rcs_commit_staged ($$$) {
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# Commits all staged changes. Changes can be staged using rcs_add,
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# rcs_remove, and rcs_rename.
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my ($message, $user, $ipaddr)=@_;
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# Note - this will also commit any spurious changes that happen to be
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# lying around in the working copy. There shouldn't be any, but...
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chdir $config{srcdir}
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or error("Cannot chdir to $config{srcdir}: $!");
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my $author;
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if (defined $user) {
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$author="Web user: " . $user;
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}
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elsif (defined $ipaddr) {
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$author="Web IP: " . $ipaddr;
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}
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else {
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$author="Web: Anonymous";
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}
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if (system("mtn", "--root=$config{mtnrootdir}", "commit", "--quiet",
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"--author", $author, "--key", $config{mtnkey}, "-m",
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IkiWiki::possibly_foolish_untaint($message)) != 0) {
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error("Monotone commit failed");
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}
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}
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sub rcs_add ($) { #{{{
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my $file=shift;
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chdir $config{srcdir}
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or error("Cannot chdir to $config{srcdir}: $!");
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if (system("mtn", "--root=$config{mtnrootdir}", "add", "--quiet",
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$file) != 0) {
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error("Monotone add failed");
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}
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} #}}}
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sub rcs_remove ($) { # {{{
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my $file = shift;
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chdir $config{srcdir}
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or error("Cannot chdir to $config{srcdir}: $!");
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# Note: it is difficult to undo a remove in Monotone at the moment.
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# Until this is fixed, it might be better to make 'rm' move things
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# into an attic, rather than actually remove them.
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# To resurrect a file, you currently add a new file with the contents
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# you want it to have. This loses all connectivity and automated
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# merging with the 'pre-delete' versions of the file.
|
|
|
|
if (system("mtn", "--root=$config{mtnrootdir}", "rm", "--quiet",
|
|
$file) != 0) {
|
|
error("Monotone remove failed");
|
|
}
|
|
} #}}}
|
|
|
|
sub rcs_rename ($$) { # {{{
|
|
my ($src, $dest) = @_;
|
|
|
|
chdir $config{srcdir}
|
|
or error("Cannot chdir to $config{srcdir}: $!");
|
|
|
|
if (system("mtn", "--root=$config{mtnrootdir}", "rename", "--quiet",
|
|
$src, $dest) != 0) {
|
|
error("Monotone rename failed");
|
|
}
|
|
} #}}}
|
|
|
|
sub rcs_recentchanges ($) { #{{{
|
|
my $num=shift;
|
|
my @ret;
|
|
|
|
chdir $config{srcdir}
|
|
or error("Cannot chdir to $config{srcdir}: $!");
|
|
|
|
# use log --brief to get a list of revs, as this
|
|
# gives the results in a nice order
|
|
# (otherwise we'd have to do our own date sorting)
|
|
|
|
my @revs;
|
|
|
|
my $child = open(MTNLOG, "-|");
|
|
if (! $child) {
|
|
exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
|
|
"--brief") || error("mtn log failed to run");
|
|
}
|
|
|
|
while (($num >= 0) and (my $line = <MTNLOG>)) {
|
|
if ($line =~ m/^($sha1_pattern)/) {
|
|
push @revs, $1;
|
|
$num -= 1;
|
|
}
|
|
}
|
|
close MTNLOG || debug("mtn log exited $?");
|
|
|
|
my $automator = Monotone->new();
|
|
$automator->open(undef, $config{mtnrootdir});
|
|
|
|
while (@revs != 0) {
|
|
my $rev = shift @revs;
|
|
# first go through and figure out the messages, etc
|
|
|
|
my $certs = [read_certs($automator, $rev)];
|
|
|
|
my $user;
|
|
my $when;
|
|
my $committype;
|
|
my (@pages, @message);
|
|
|
|
foreach my $cert (@$certs) {
|
|
if ($cert->{signature} eq "ok" &&
|
|
$cert->{trust} eq "trusted") {
|
|
if ($cert->{name} eq "author") {
|
|
$user = $cert->{value};
|
|
# detect the source of the commit
|
|
# from the changelog
|
|
if ($cert->{key} eq $config{mtnkey}) {
|
|
$committype = "web";
|
|
} else {
|
|
$committype = "monotone";
|
|
}
|
|
} elsif ($cert->{name} eq "date") {
|
|
$when = str2time($cert->{value}, 'UTC');
|
|
} elsif ($cert->{name} eq "changelog") {
|
|
my $messageText = $cert->{value};
|
|
# split the changelog into multiple
|
|
# lines
|
|
foreach my $msgline (split(/\n/, $messageText)) {
|
|
push @message, { line => $msgline };
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
my @changed_files = get_changed_files($automator, $rev);
|
|
my $file;
|
|
|
|
my ($out, $err) = $automator->call("parents", $rev);
|
|
my @parents = ($out =~ m/^($sha1_pattern)$/);
|
|
my $parent = $parents[0];
|
|
|
|
foreach $file (@changed_files) {
|
|
next unless length $file;
|
|
|
|
if (defined $config{diffurl} and (@parents == 1)) {
|
|
my $diffurl=$config{diffurl};
|
|
$diffurl=~s/\[\[r1\]\]/$parent/g;
|
|
$diffurl=~s/\[\[r2\]\]/$rev/g;
|
|
$diffurl=~s/\[\[file\]\]/$file/g;
|
|
push @pages, {
|
|
page => pagename($file),
|
|
diffurl => $diffurl,
|
|
};
|
|
}
|
|
else {
|
|
push @pages, {
|
|
page => pagename($file),
|
|
}
|
|
}
|
|
}
|
|
|
|
push @ret, {
|
|
rev => $rev,
|
|
user => $user,
|
|
committype => $committype,
|
|
when => $when,
|
|
message => [@message],
|
|
pages => [@pages],
|
|
} if @pages;
|
|
}
|
|
|
|
$automator->close();
|
|
|
|
return @ret;
|
|
} #}}}
|
|
|
|
sub rcs_diff ($) { #{{{
|
|
my $rev=shift;
|
|
my ($sha1) = $rev =~ /^($sha1_pattern)$/; # untaint
|
|
|
|
chdir $config{srcdir}
|
|
or error("Cannot chdir to $config{srcdir}: $!");
|
|
|
|
my $child = open(MTNDIFF, "-|");
|
|
if (! $child) {
|
|
exec("mtn", "diff", "--root=$config{mtnrootdir}", "-r", "p:".$sha1, "-r", $sha1) || error("mtn diff $sha1 failed to run");
|
|
}
|
|
|
|
my (@lines) = <MTNDIFF>;
|
|
|
|
close MTNDIFF || debug("mtn diff $sha1 exited $?");
|
|
|
|
if (wantarray) {
|
|
return @lines;
|
|
}
|
|
else {
|
|
return join("", @lines);
|
|
}
|
|
} #}}}
|
|
|
|
sub rcs_getctime ($) { #{{{
|
|
my $file=shift;
|
|
|
|
chdir $config{srcdir}
|
|
or error("Cannot chdir to $config{srcdir}: $!");
|
|
|
|
my $child = open(MTNLOG, "-|");
|
|
if (! $child) {
|
|
exec("mtn", "log", "--root=$config{mtnrootdir}", "--no-graph",
|
|
"--brief", $file) || error("mtn log $file failed to run");
|
|
}
|
|
|
|
my $firstRev;
|
|
while (<MTNLOG>) {
|
|
if (/^($sha1_pattern)/) {
|
|
$firstRev=$1;
|
|
}
|
|
}
|
|
close MTNLOG || debug("mtn log $file exited $?");
|
|
|
|
if (! defined $firstRev) {
|
|
debug "failed to parse mtn log for $file";
|
|
return 0;
|
|
}
|
|
|
|
my $automator = Monotone->new();
|
|
$automator->open(undef, $config{mtnrootdir});
|
|
|
|
my $certs = [read_certs($automator, $firstRev)];
|
|
|
|
$automator->close();
|
|
|
|
my $date;
|
|
|
|
foreach my $cert (@$certs) {
|
|
if ($cert->{signature} eq "ok" && $cert->{trust} eq "trusted") {
|
|
if ($cert->{name} eq "date") {
|
|
$date = $cert->{value};
|
|
}
|
|
}
|
|
}
|
|
|
|
if (! defined $date) {
|
|
debug "failed to find date cert for revision $firstRev when looking for creation time of $file";
|
|
return 0;
|
|
}
|
|
|
|
$date=str2time($date, 'UTC');
|
|
debug("found ctime ".localtime($date)." for $file");
|
|
return $date;
|
|
} #}}}
|
|
|
|
1
|