From 7eb512205fba0efad301521bbd641848b4890b1d Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kodama.kitenet.net>
Date: Wed, 15 Oct 2008 19:38:21 -0400
Subject: [PATCH] updated from pesco's darcs repo, current to Oct 11 version

---
 IkiWiki/Plugin/darcs.pm   | 730 ++++++++++++++++++--------------------
 doc/ikiwiki-makerepo.mdwn |  11 +-
 ikiwiki-makerepo          |  40 ++-
 3 files changed, 392 insertions(+), 389 deletions(-)

diff --git a/IkiWiki/Plugin/darcs.pm b/IkiWiki/Plugin/darcs.pm
index 0957ef0ef..27ea6b6dd 100644
--- a/IkiWiki/Plugin/darcs.pm
+++ b/IkiWiki/Plugin/darcs.pm
@@ -45,465 +45,427 @@ use IkiWiki;
 
 
 sub import {
-    hook(type => "checkconfig", id => "darcs", call => \&checkconfig);
-    hook(type => "getsetup", id => "darcs", call => \&getsetup);
-    hook(type => "rcs", id => "rcs_update", call => \&rcs_update);
-    hook(type => "rcs", id => "rcs_prepedit", call => \&rcs_prepedit);
-    hook(type => "rcs", id => "rcs_commit", call => \&rcs_commit);
-    hook(type => "rcs", id => "rcs_commit_staged", call => \&rcs_commit_staged);
-    hook(type => "rcs", id => "rcs_add", call => \&rcs_add);
-    hook(type => "rcs", id => "rcs_remove", call => \&rcs_remove);
-    hook(type => "rcs", id => "rcs_rename", call => \&rcs_rename);
-    hook(type => "rcs", id => "rcs_recentchanges", call => \&rcs_recentchanges);
-    hook(type => "rcs", id => "rcs_diff", call => \&rcs_diff);
-    hook(type => "rcs", id => "rcs_getctime", call => \&rcs_getctime);
+	hook(type => "checkconfig", id => "darcs", call => \&checkconfig);
+	hook(type => "getsetup", id => "darcs", call => \&getsetup);
+	hook(type => "rcs", id => "rcs_update", call => \&rcs_update);
+	hook(type => "rcs", id => "rcs_prepedit", call => \&rcs_prepedit);
+	hook(type => "rcs", id => "rcs_commit", call => \&rcs_commit);
+	hook(type => "rcs", id => "rcs_commit_staged", call => \&rcs_commit_staged);
+	hook(type => "rcs", id => "rcs_add", call => \&rcs_add);
+	hook(type => "rcs", id => "rcs_remove", call => \&rcs_remove);
+	hook(type => "rcs", id => "rcs_rename", call => \&rcs_rename);
+	hook(type => "rcs", id => "rcs_recentchanges", call => \&rcs_recentchanges);
+	hook(type => "rcs", id => "rcs_diff", call => \&rcs_diff);
+	hook(type => "rcs", id => "rcs_getctime", call => \&rcs_getctime);
 }
 
 
-# Which darcs executable to use.
-my $darcs = ($ENV{DARCS} or 'darcs');
-
-
 # Internal functions
 
-our %cache;
-
-sub loadcache () {
-    my $repodir=$config{srcdir};
-    if (!defined %cache) {
-        my $f = "$repodir/.ikiwiki.ctimes";
-        if (-s "$f") {
-            my $VAR1;
-            my $x = `cat "$f"`;
-            $x =~ /^(.*)$/sm; # untaint
-            eval "$1";
-            %cache = %$VAR1;
-        }
-    }
-}
-
-END {
-    my $repodir=$config{srcdir};
-    if (defined %cache) {
-        debug("dumping ctime cache to $repodir/.ikiwiki.ctimes");
-        open CACHE, ">$repodir/.ikiwiki.ctimes";
-        print CACHE Dumper(\%cache);
-        close CACHE;
-    }
-}
-
 sub silentsystem (@) {
-    open(SAVED_STDOUT, ">&STDOUT");
-    open(STDOUT, ">/dev/null");
-    my $ret = system @_;
-    open(STDOUT, ">&SAVED_STDOUT");
-    return $ret;
+	open(SAVED_STDOUT, ">&STDOUT");
+	open(STDOUT, ">/dev/null");
+	my $ret = system @_;
+	open(STDOUT, ">&SAVED_STDOUT");
+	return $ret;
 }
 
 sub darcs_info ($$$) {
-    my $field = shift;
-    my $repodir = shift;
-    my $file = shift; # Relative to the repodir.
-
-    my $child = open(DARCS_CHANGES, "-|");
-    if (! $child) {
-    exec($darcs, 'changes', '--repodir', $repodir, '--xml-output', $file) or
-        error("failed to run 'darcs changes'");
-    }
-
-    # Brute force for now.  :-/
-    while (<DARCS_CHANGES>) {
-    last if /^<\/created_as>$/;
-    }
-    ($_) = <DARCS_CHANGES> =~ /$field=\'([^\']+)/;
-    $field eq 'hash' and s/\.gz//; # Strip away the '.gz' from 'hash'es.
-
-    close(DARCS_CHANGES) or error("'darcs changes' exited " . $?);
-
-    return $_;
+	my $field = shift;
+	my $repodir = shift;
+	my $file = shift; # Relative to the repodir.
+
+	my $child = open(DARCS_CHANGES, "-|");
+	if (! $child) {
+		exec('darcs', 'changes', '--repodir', $repodir, '--xml-output', $file) or
+			error("failed to run 'darcs changes'");
+	}
+
+	# Brute force for now.  :-/
+	while (<DARCS_CHANGES>) {
+		last if /^<\/created_as>$/;
+	}
+	($_) = <DARCS_CHANGES> =~ /$field=\'([^\']+)/;
+	$field eq 'hash' and s/\.gz//; # Strip away the '.gz' from 'hash'es.
+
+	close(DARCS_CHANGES) or error("'darcs changes' exited " . $?);
+
+	return $_;
 }
 
 sub darcs_rev($) {
-    my $file = shift; # Relative to the repodir.
-    my $repodir = $config{srcdir};
-
-    my $child = open(DARCS_MANIFEST, "-|");
-    if (! $child) {
-        exec($darcs, 'query', 'manifest', '--repodir', $repodir) or
-            error("failed to run 'darcs query manifest'");
-    }
-    my $found=0;
-    while (<DARCS_MANIFEST>) {
-        $found = 1, last if /^$file$/;
-    }
-    return "" if (! $found);
-    close(DARCS_MANIFEST) or error("'darcs query manifest' exited " . $?);
-
-    my $hash = darcs_info('hash', $repodir, $file);
-    return defined $hash ? $hash : "";
+	my $file = shift; # Relative to the repodir.
+	my $repodir = $config{srcdir};
+
+	my $child = open(DARCS_MANIFEST, "-|");
+	if (! $child) {
+		exec('darcs', 'query', 'manifest', '--repodir', $repodir) or
+			error("failed to run 'darcs query manifest'");
+	}
+	my $found=0;
+	while (<DARCS_MANIFEST>) {
+		$found = 1, last if /^$file$/;
+	}
+	return "" if (! $found);
+	close(DARCS_MANIFEST) or error("'darcs query manifest' exited " . $?);
+
+	my $hash = darcs_info('hash', $repodir, $file);
+	return defined $hash ? $hash : "";
 }
 
 
 # Exported functions.
 
 sub checkconfig() {
-    if (defined $config{darcs_wrapper} && length $config{darcs_wrapper}) {
-	push @{$config{wrappers}}, {
-	    wrapper => $config{darcs_wrapper},
-	    wrappermode => (defined $config{darcs_wrappermode} ? $config{darcs_wrappermode} : "06755"),
-	};
-    }
+	if (defined $config{darcs_wrapper} && length $config{darcs_wrapper}) {
+		push @{$config{wrappers}}, {
+			wrapper => $config{darcs_wrapper},
+			wrappermode => (defined $config{darcs_wrappermode} ? $config{darcs_wrappermode} : "06755"),
+		};
+	}
 }
 
 sub getsetup() {
-    return
+	return
 	plugin => {
-	    safe => 0, # rcs plugin
-	    rebuild => undef,
+		safe => 0, # rcs plugin
+		rebuild => undef,
 	},
 	darcs_wrapper => {
-	    type => "string",
-	    example => "/darcs/repo/_darcs/ikiwiki-wrapper",
-	    description => "wrapper to generate (set as master repo apply hook)",
-	    safe => 0, # file
-	    rebuild => 0,
+		type => "string",
+		example => "/darcs/repo/_darcs/ikiwiki-wrapper",
+		description => "wrapper to generate (set as master repo apply hook)",
+		safe => 0, # file
+		rebuild => 0,
 	},
 	darcs_wrappermode => {
-	    type => "string",
-	    example => '06755',
-	    description => "mode for darcs_wrapper (can safely be made suid)",
-	    safe => 0,
-	    rebuild => 0,
+		type => "string",
+		example => '06755',
+		description => "mode for darcs_wrapper (can safely be made suid)",
+		safe => 0,
+		rebuild => 0,
 	},
 	historyurl => {
-	    type => "string",
-	    example => "http://darcs.example.com/darcsweb.cgi?r=wiki;a=filehistory;f=[[file]]",
-	    description => "darcsweb url to show file history ([[file]] substituted)",
-	    safe => 1,
-	    rebuild => 1,
+		type => "string",
+		example => "http://darcs.example.com/darcsweb.cgi?r=wiki;a=filehistory;f=[[file]]",
+		description => "darcsweb url to show file history ([[file]] substituted)",
+		safe => 1,
+		rebuild => 1,
 	},
 	diffurl => {
-	    type => "string",
-	    example => "http://darcs.example.com/darcsweb.cgi?r=wiki;a=filediff;h=[[hash]];f=[[file]]",
-	    description => "darcsweb url to show a diff ([[hash]] and [[file]] substituted)",
-	    safe => 1,
-	    rebuild => 1,
+		type => "string",
+		example => "http://darcs.example.com/darcsweb.cgi?r=wiki;a=filediff;h=[[hash]];f=[[file]]",
+		description => "darcsweb url to show a diff ([[hash]] and [[file]] substituted)",
+		safe => 1,
+		rebuild => 1,
 	},
 }
 
 sub rcs_update () {
-    silentsystem($darcs, "pull", "--repodir", $config{srcdir}, "-qa")
+	silentsystem('darcs', "pull", "--repodir", $config{srcdir}, "-qa")
 }
 
 sub rcs_prepedit ($) {
-    # Prepares to edit a file under revision control.  Returns a token that
-    # must be passed to rcs_commit() when the file is to be commited.  For us,
-    # this token the hash value of the latest patch that modifies the file,
-    # i.e. something like its current revision.  If the file is not yet added
-    # to the repository, we return TODO: the empty string.
-
-    my $file = shift; # Relative to the repodir.
-    my $rev = darcs_rev($file);
-    return $rev;
+	# Prepares to edit a file under revision control.  Returns a token that
+	# must be passed to rcs_commit() when the file is to be commited.  For us,
+	# this token the hash value of the latest patch that modifies the file,
+	# i.e. something like its current revision.  If the file is not yet added
+	# to the repository, we return TODO: the empty string.
+
+	my $file = shift; # Relative to the repodir.
+	my $rev = darcs_rev($file);
+	return $rev;
 }
 
 sub rcs_commit ($$$;$$) {
-    # Commit the page.  Returns 'undef' on success and a version of the page
-    # with conflict markers on failure.
-
-    my ($file, $message, $rcstoken, $user, $ipaddr) = @_;
-
-    # Compute if the "revision" of $file changed.
-    my $changed = darcs_rev($file) ne $rcstoken;
-
-    # Yes, the following is a bit convoluted.
-    if ($changed) {
-    # TODO.  Invent a better, non-conflicting name.
-    rename("$config{srcdir}/$file", "$config{srcdir}/$file.save") or
-        error("failed to rename $file to $file.save: $!");
-
-    # Roll the repository back to $rcstoken.
-
-    # TODO.  Can we be sure that no changes are lost?  I think that
-    # we can, if we make sure that the 'darcs push' below will always
-    # succeed.
-
-    # We need to revert everything as 'darcs obliterate' might choke
-    # otherwise.
-        # TODO: 'yes | ...' needed?  Doesn't seem so.
-    silentsystem($darcs, "revert", "--repodir", $config{srcdir}, "--all") and
-        error("'darcs revert' failed");
-    # Remove all patches starting at $rcstoken.
-    my $child = open(DARCS_OBLITERATE, "|-");
-    if (! $child) {
-        open(STDOUT, ">/dev/null");
-        exec($darcs, "obliterate", "--repodir", $config{srcdir},
-           "--match", "hash " . $rcstoken) and
-           error("'darcs obliterate' failed");
-    }
-    while (print DARCS_OBLITERATE "y") {
-        ;
-    }
-    close(DARCS_OBLITERATE);
-    # Restore the $rcstoken one.
-    silentsystem($darcs, "pull", "--quiet", "--repodir", $config{srcdir},
-           "--match", "hash " . $rcstoken, "--all") and
-           error("'darcs pull' failed");
-
-    # We're back at $rcstoken.  Re-install the modified file.
-    rename("$config{srcdir}/$file.save", "$config{srcdir}/$file") or
-        error("failed to rename $file.save to $file: $!");
-    }
-
-    # Record the changes.
-    my $author;
-    if (defined $user) {
-        $author = "$user\@web";
-    } elsif (defined $ipaddr) {
-        $author = "$ipaddr\@web";
-    } else {
-        $author = "anon\@web";
-    }
-    if (!defined $message || !length($message)) {
-        $message = "empty message";
-    }
-    silentsystem($darcs, 'record', '--repodir', $config{srcdir}, '--all',
-       '-m', $message, '--author', $author, $file) and
-           error("'darcs record' failed");
-
-    # Update the repository by pulling from the default repository, which is
-    # master repository.
-    silentsystem($darcs, "pull", "--quiet", "--repodir", $config{srcdir},
-       "--all") and error("'darcs pull' failed");
-
-    # If this updating yields any conflicts, we'll record them now to resolve
-    # them.  If nothing is recorded, there are no conflicts.
-    $rcstoken = darcs_rev($file);
-    # TODO: Use only the first line here, i.e. only the patch name?
-    writefile("$file.log", $config{srcdir}, 'resolve conflicts: ' . $message);
-    silentsystem($darcs, 'record', '--repodir', $config{srcdir}, '--all',
-       '-m', 'resolve conflicts: ' . $message, '--author', $author, $file) and
-           error("'darcs record' failed");
-    my $conflicts = darcs_rev($file) ne $rcstoken;
-    unlink("$config{srcdir}/$file.log") or
-    error("failed to remove '$file.log'");
-
-    # Push the changes to the main repository.
-    silentsystem($darcs, 'push', '--quiet', '--repodir', $config{srcdir}, '--all')
-    and error("'darcs push' failed");
-    # TODO: darcs send?
-
-    if ($conflicts) {
-        my $document = readfile("$config{srcdir}/$file");
-        # Try to leave everything in a consistent state.
-        # TODO: 'yes | ...' needed?  Doesn't seem so.
-        silentsystem($darcs, "revert", "--repodir", $config{srcdir}, "--all") and
-            warn("'darcs revert' failed");
-        return $document;
-    } else {
-        return undef;
-    }
+	# Commit the page.  Returns 'undef' on success and a version of the page
+	# with conflict markers on failure.
+
+	my ($file, $message, $rcstoken, $user, $ipaddr) = @_;
+
+	# Compute if the "revision" of $file changed.
+	my $changed = darcs_rev($file) ne $rcstoken;
+
+	# Yes, the following is a bit convoluted.
+	if ($changed) {
+	# TODO.  Invent a better, non-conflicting name.
+	rename("$config{srcdir}/$file", "$config{srcdir}/$file.save") or
+		error("failed to rename $file to $file.save: $!");
+
+	# Roll the repository back to $rcstoken.
+
+	# TODO.  Can we be sure that no changes are lost?  I think that
+	# we can, if we make sure that the 'darcs push' below will always
+	# succeed.
+
+	# We need to revert everything as 'darcs obliterate' might choke
+	# otherwise.
+	# TODO: 'yes | ...' needed?  Doesn't seem so.
+	silentsystem('darcs', "revert", "--repodir", $config{srcdir}, "--all") and
+		error("'darcs revert' failed");
+	# Remove all patches starting at $rcstoken.
+	my $child = open(DARCS_OBLITERATE, "|-");
+	if (! $child) {
+		open(STDOUT, ">/dev/null");
+		exec('darcs', "obliterate", "--repodir", $config{srcdir},
+		   "--match", "hash " . $rcstoken) and
+		   error("'darcs obliterate' failed");
+	}
+	while (print DARCS_OBLITERATE "y") {
+		;
+	}
+	close(DARCS_OBLITERATE);
+	# Restore the $rcstoken one.
+	silentsystem('darcs', "pull", "--quiet", "--repodir", $config{srcdir},
+		"--match", "hash " . $rcstoken, "--all") and
+		error("'darcs pull' failed");
+
+	# We're back at $rcstoken.  Re-install the modified file.
+	rename("$config{srcdir}/$file.save", "$config{srcdir}/$file") or
+		error("failed to rename $file.save to $file: $!");
+	}
+
+	# Record the changes.
+	my $author;
+	if (defined $user) {
+		$author = "$user\@web";
+	} elsif (defined $ipaddr) {
+		$author = "$ipaddr\@web";
+	} else {
+		$author = "anon\@web";
+	}
+	if (!defined $message || !length($message)) {
+		$message = "empty message";
+	}
+	silentsystem('darcs', 'record', '--repodir', $config{srcdir}, '--all',
+	   '-m', $message, '--author', $author, $file) and
+		error("'darcs record' failed");
+
+	# Update the repository by pulling from the default repository, which is
+	# master repository.
+	silentsystem('darcs', "pull", "--quiet", "--repodir", $config{srcdir},
+		"--all") and error("'darcs pull' failed");
+
+	# If this updating yields any conflicts, we'll record them now to resolve
+	# them.  If nothing is recorded, there are no conflicts.
+	$rcstoken = darcs_rev($file);
+	# TODO: Use only the first line here, i.e. only the patch name?
+	writefile("$file.log", $config{srcdir}, 'resolve conflicts: ' . $message);
+	silentsystem('darcs', 'record', '--repodir', $config{srcdir}, '--all',
+		'-m', 'resolve conflicts: ' . $message, '--author', $author, $file) and
+		error("'darcs record' failed");
+	my $conflicts = darcs_rev($file) ne $rcstoken;
+	unlink("$config{srcdir}/$file.log") or
+	error("failed to remove '$file.log'");
+
+	# Push the changes to the main repository.
+	silentsystem('darcs', 'push', '--quiet', '--repodir', $config{srcdir}, '--all')
+	and error("'darcs push' failed");
+	# TODO: darcs send?
+
+	if ($conflicts) {
+		my $document = readfile("$config{srcdir}/$file");
+		# Try to leave everything in a consistent state.
+		# TODO: 'yes | ...' needed?  Doesn't seem so.
+		silentsystem('darcs', "revert", "--repodir", $config{srcdir}, "--all") and
+			warn("'darcs revert' failed");
+		return $document;
+	} else {
+		return undef;
+	}
 }
 
 sub rcs_commit_staged($$$) {
-    my ($message, $user, $ipaddr) = @_;
-
-    my $author;
-    if (defined $user) {
-        $author = "$user\@web";
-    } elsif (defined $ipaddr) {
-        $author = "$ipaddr\@web";
-    } else {
-        $author = "anon\@web";
-    }
-    if (!defined $message || !length($message)) {
-        $message = "empty message";
-    }
-
-    silentsystem($darcs, "record", "--repodir", $config{srcdir}, "-a", "-A", $author,
-	"-m", $message)	and error("'darcs record' failed");
-
-    # Push the changes to the main repository.
-    silentsystem($darcs, 'push', '--quiet', '--repodir', $config{srcdir}, '--all')
-    and error("'darcs push' failed");
-    # TODO: darcs send?
-
-    return undef;
+	my ($message, $user, $ipaddr) = @_;
+
+	my $author;
+	if (defined $user) {
+		$author = "$user\@web";
+	} elsif (defined $ipaddr) {
+		$author = "$ipaddr\@web";
+	} else {
+		$author = "anon\@web";
+	}
+	if (!defined $message || !length($message)) {
+		$message = "empty message";
+	}
+
+	silentsystem('darcs', "record", "--repodir", $config{srcdir}, "-a", "-A", $author,
+		"-m", $message)	and error("'darcs record' failed");
+
+	# Push the changes to the main repository.
+	silentsystem('darcs', 'push', '--quiet', '--repodir', $config{srcdir}, '--all')
+		and error("'darcs push' failed");
+	# TODO: darcs send?
+
+	return undef;
 }
 
 sub rcs_add ($) {
-    my $file = shift; # Relative to the repodir.
+	my $file = shift; # Relative to the repodir.
 
-    # Intermediate directories will be added automagically.
-    system($darcs, 'add', '--quiet', '--repodir', $config{srcdir},
-       '--boring', $file) and error("'darcs add' failed");
+	# Intermediate directories will be added automagically.
+	system('darcs', 'add', '--quiet', '--repodir', $config{srcdir},
+	   '--boring', $file) and error("'darcs add' failed");
 }
 
 sub rcs_remove ($) {
-    my $file = shift; # Relative to the repodir.
+	my $file = shift; # Relative to the repodir.
 
-    system('rm', $config{srcdir}.'/'.$file)
-       and error("'rm' failed");
+	unlink($config{srcdir}.'/'.$file);
 }
 
 sub rcs_rename ($$) {
-    my $a = shift; # Relative to the repodir.
-    my $b = shift; # Relative to the repodir.
+	my $a = shift; # Relative to the repodir.
+	my $b = shift; # Relative to the repodir.
 
-    system($darcs, 'mv', '--repodir', $config{srcdir}, $a, $b)
-       and error("'darcs mv' failed");
+	system('darcs', 'mv', '--repodir', $config{srcdir}, $a, $b)
+	   and error("'darcs mv' failed");
 }
 
 sub rcs_recentchanges ($) {
-    my $num=shift;
-    my @ret;
-
-    eval q{use Date::Parse};
-    eval q{use XML::Simple};
-
-    my $repodir=$config{srcdir};
-
-    debug("darcs recent changes: $num");
-
-    my $child = open(LOG, "-|");
-    if (! $child) {
-        $ENV{"DARCS_DONT_ESCAPE_ANYTHING"}=1;
-        exec("darcs", "changes", "--xml", 
-            "--summary",
-             "--repodir", "$repodir",
-             "--last", "$num")
-        || error("'darcs changes' failed to run");
-    }
-    my $data;
-    $data .= $_ while(<LOG>);
-    close LOG;
-
-    my $log = XMLin($data, ForceArray => 1);
-
-    debug("parsing recent changes...");
-    foreach my $patch (@{$log->{patch}}) {
-        my $date=$patch->{local_date};
-        my $hash=$patch->{hash};
-        my $when=str2time($date);
-        my (@pages, @files, @pg);
-        push @pages, $_ for (@{$patch->{summary}->[0]->{modify_file}});
-        push @pages, $_ for (@{$patch->{summary}->[0]->{add_file}});
-        push @pages, $_ for (@{$patch->{summary}->[0]->{remove_file}});
-        for (@pages) {
-            my $f = $_;
-            $f = $_->{content} if (ref $_);
-            $f =~ s,^\s+,,; $f =~ s,\s+$,,; # cut whitespace
-
-	    push @files, $f;
-        }
-	for (@{$patch->{summary}->[0]->{move}}) {
-	    my $p = $_;
-	    push @files, $p->{from};
-        }
-
-	for (@files) {
-	    my $f = $_;
-	    my $d = defined $config{'diffurl'} ? $config{'diffurl'} : "";
-	    $d =~ s/\[\[file\]\]/$f/go;
-	    $d =~ s/\[\[hash\]\]/$hash/go;
-
-            debug("file: $f");
-	    debug("diffurl: $d");
-            push @pg, {
-                page => pagename($f),
-		diffurl => $d,
-            };
-        }
-        next unless (scalar @pg > 0);
-        debug("recent change: " . $patch->{name}[0] . " ("
-            . scalar @pg . " changes)");
-
-        my @message;
-        push @message, { line => $_ } for (@{$patch->{name}});
-
-        my $committype;
-        if ($patch->{author} =~ /\@web$/) {
-            $committype = "web";
-        } else {
-            $committype = "darcs";
-        }
-
-        push @ret, {
-            rev => $patch->{hash},
-            user => $patch->{author},
-            committype => $committype,
-            when => $when, 
-            message => [@message],
-            pages => [@pg],
-        };
-    }
-
-    return @ret;
+	my $num=shift;
+	my @ret;
+
+	eval q{use Date::Parse};
+	eval q{use XML::Simple};
+
+	my $repodir=$config{srcdir};
+
+	debug("darcs recent changes: $num");
+
+	my $child = open(LOG, "-|");
+	if (! $child) {
+		$ENV{"DARCS_DONT_ESCAPE_ANYTHING"}=1;
+		exec("darcs", "changes", "--xml", 
+			"--summary",
+			 "--repodir", "$repodir",
+			 "--last", "$num")
+		|| error("'darcs changes' failed to run");
+	}
+	my $data;
+	$data .= $_ while(<LOG>);
+	close LOG;
+
+	my $log = XMLin($data, ForceArray => 1);
+
+	debug("parsing recent changes...");
+	foreach my $patch (@{$log->{patch}}) {
+		my $date=$patch->{local_date};
+		my $hash=$patch->{hash};
+		my $when=str2time($date);
+		my (@pages, @files, @pg);
+		push @pages, $_ for (@{$patch->{summary}->[0]->{modify_file}});
+		push @pages, $_ for (@{$patch->{summary}->[0]->{add_file}});
+		push @pages, $_ for (@{$patch->{summary}->[0]->{remove_file}});
+		for (@pages) {
+			my $f = $_;
+			$f = $_->{content} if (ref $_);
+			$f =~ s,^\s+,,; $f =~ s,\s+$,,; # cut whitespace
+
+			push @files, $f;
+		}
+		for (@{$patch->{summary}->[0]->{move}}) {
+			my $p = $_;
+			push @files, $p->{from};
+		}
+
+		for (@files) {
+			my $f = $_;
+			my $d = defined $config{'diffurl'} ? $config{'diffurl'} : "";
+			$d =~ s/\[\[file\]\]/$f/go;
+			$d =~ s/\[\[hash\]\]/$hash/go;
+
+			debug("file: $f");
+			debug("diffurl: $d");
+			push @pg, {
+				page => pagename($f),
+				diffurl => $d,
+			};
+		}
+		next unless (scalar @pg > 0);
+		debug("recent change: " . $patch->{name}[0] . " ("
+			. scalar @pg . " changes)");
+
+		my @message;
+		push @message, { line => $_ } for (@{$patch->{name}});
+
+		my $committype;
+		if ($patch->{author} =~ /\@web$/) {
+			$committype = "web";
+		} else {
+			$committype = "darcs";
+		}
+
+		push @ret, {
+			rev => $patch->{hash},
+			user => $patch->{author},
+			committype => $committype,
+			when => $when, 
+			message => [@message],
+			pages => [@pg],
+		};
+	}
+
+	return @ret;
 }
 
 sub rcs_diff ($) {
-    my $rev=shift;
-    my @lines;
-    foreach my $line (silentsystem("darcs", "diff", "--match", "hash ".$rev)) {
-	if (@lines || $line=~/^diff/) {
-	    push @lines, $line."\n";
-        }
-    }
-    if (wantarray) {
-	return @lines;
-    }
-    else {
-	return join("", @lines);
-    }
+	my $rev=shift;
+	my @lines;
+	foreach my $line (silentsystem("darcs", "diff", "--match", "hash ".$rev)) {
+		if (@lines || $line=~/^diff/) {
+			push @lines, $line."\n";
+		}
+	}
+	if (wantarray) {
+		return @lines;
+	}
+	else {
+		return join("", @lines);
+	}
 }
 
 sub rcs_getctime ($) {
-    my $file=shift;
-
-    eval q{use Date::Parse};
-    eval q{use XML::Simple};
-    local $/=undef;
+	my $file=shift;
 
-    # Sigh... doing things the hard way again
-    my $repodir=$config{srcdir};
+	eval q{use Date::Parse};
+	eval q{use XML::Simple};
+	local $/=undef;
 
-    &loadcache;
+	# Sigh... doing things the hard way again
+	my $repodir=$config{srcdir};
 
-    my $filer=substr($file, length($repodir));
-    $filer =~ s:^[/]+::;
+	my $filer=substr($file, length($repodir));
+	$filer =~ s:^[/]+::;
 
-    if (defined $cache{$filer}) {
-        #debug("taking cached ctime ".localtime($cache{$filer})." for $filer");
-        return $cache{$filer};
-    }
+	my $child = open(LOG, "-|");
+	if (! $child) {
+		exec("darcs", "changes", "--xml", "--reverse",
+			"--repodir", "$repodir", "$filer")
+		|| error("'darcs changes $filer' failed to run");
+	}
 
-    my $child = open(LOG, "-|");
-    if (! $child) {
-        exec("darcs", "changes", "--xml", "--reverse",
-             "--repodir", "$repodir", "$filer")
-        || error("'darcs changes $filer' failed to run");
-    }
+	my $data;
+	$data .= $_ while(<LOG>);
+	close LOG;
 
-    my $data;
-    $data .= $_ while(<LOG>);
-    close LOG;
+	my $log = XMLin($data, ForceArray => 1);
 
-    my $log = XMLin($data, ForceArray => 1);
+	my $datestr=$log->{patch}[0]->{local_date};
 
-    my $datestr=$log->{patch}[0]->{local_date};
+	if (! defined $datestr) {
+		warn "failed to get ctime for $filer";
+		return 0;
+	}
 
-    if (! defined $datestr) {
-        warn "failed to get ctime for $filer";
-        $cache{$filer} = 0;
-        return 0;
-    }
+	my $date=str2time($datestr);
 
-    my $date=str2time($datestr);
+	#debug("found ctime ".localtime($date)." for $filer");
 
-    #debug("found ctime ".localtime($date)." for $filer");
-
-    $cache{$filer} = $date;
-    return $date;
+	return $date;
 }
 
 1
+
+# vim: ts=4 sw=4 noet
diff --git a/doc/ikiwiki-makerepo.mdwn b/doc/ikiwiki-makerepo.mdwn
index dcebbb96a..d5034b2c7 100644
--- a/doc/ikiwiki-makerepo.mdwn
+++ b/doc/ikiwiki-makerepo.mdwn
@@ -4,9 +4,9 @@ ikiwiki-makerepo - check an ikiwiki srcdir into revision control
 
 # SYNOPSIS
 
-ikiwiki-makerepo svn|git|monotone srcdir repository
+ikiwiki-makerepo svn|git|monotone|darcs srcdir repository
 
-ikiwiki-makerepo mercurial srcdir
+ikiwiki-makerepo mercurial|darcs srcdir
 
 # DESCRIPTION
 
@@ -17,6 +17,13 @@ mercurial repository.
 Note that for mercurial, the srcdir is converted into a mercurial
 repository. There is no need to have a separate repository with mercurial.
 
+For darcs, the second (one-argument) form turns the given srcdir into a
+darcs master repository with the (new) srcdir inside. Adjust your ikiwiki.setup
+according to the command output! Also, the master repo's apply hook will be
+preconfigured to call a (hypothetical) ikiwiki wrapper. The command
+reports the relevant file. Adjust it as needed or remove it if you don't use
+the cgi script.
+
 Note that for monotone, you are assumed to already have run "mtn genkey" to generate
 key.
 
diff --git a/ikiwiki-makerepo b/ikiwiki-makerepo
index c3d835c30..78eea8f53 100755
--- a/ikiwiki-makerepo
+++ b/ikiwiki-makerepo
@@ -6,8 +6,8 @@ srcdir="$2"
 repository="$3"
 
 usage () {
-	echo "usage: ikiwiki-makerepo svn|git|monotone srcdir repository" >&2
-	echo "       ikiwiki-makerepo bzr|mercurial srcdir" >&2
+	echo "usage: ikiwiki-makerepo svn|git|monotone|darcs srcdir repository" >&2
+	echo "       ikiwiki-makerepo bzr|mercurial|darcs srcdir" >&2
 	exit 1
 }
 
@@ -20,7 +20,7 @@ if [ ! -d "$srcdir" ]; then
 	exit 1
 fi
 
-if [ "$rcs" != mercurial ] && [ "$rcs" != bzr ]; then
+if [ "$rcs" != mercurial ] && [ "$rcs" != bzr ] && [ "$rcs" != darcs ]; then
 	if [ -z "$repository" ]; then
 		echo "you need to specify both a srcdir and a repository for $rcs" >&2
 		usage
@@ -121,6 +121,40 @@ monotone)
 	echo '    return "passphrasehere"'
 	echo "end"
 ;;
+darcs)
+	if [ -e "$srcdir/_darcs" ]; then
+		echo "$srcdir already seems to be a darcs repository" >&2
+		exit 1
+	fi
+
+	# if only one arg is given, we turn the given srcdir into the darcs
+	# master repo with a hidden srcdir inside its _darcs directory.
+	if [ -z "$repository" ]; then
+		echo "Turning $srcdir into master repo."
+		repository="$srcdir"
+		srcdir="$srcdir/_darcs/srcdir"
+		echo "The new srcdir is $srcdir - adjust ikiwiki.setup accordingly!"
+	fi
+
+	mkdir -p "$repository"
+	cd "$repository"
+	darcs initialize
+
+	mkdir -p "$srcdir"
+	cd "$srcdir"
+	darcs initialize
+	echo .ikiwiki >> _darcs/prefs/boring
+	darcs record -a -l -q -m "initial import"
+	darcs pull -a -q "$repository"
+	darcs push -a -q "$repository"
+	echo "Directory $srcdir is now a branch of darcs repo $repository"
+
+	# set up master repo's apply hook and tell user to adjust it if desired
+	darcsdefaults="$repository/_darcs/prefs/defaults"
+	echo "Preconfiguring apply hook in $darcsdefaults - adjust as desired!"
+	echo "apply posthook $repository/_darcs/ikiwrapper" >> "$darcsdefaults"
+	echo "apply run-posthook" >> "$darcsdefaults"
+;;
 *)
 	echo "Unsupported revision control system $rcs" >&2
 	usage
-- 
2.32.0.93.g670b81a890