From 6fc97a71b0594afa47781571654e71cb18d4d08a Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <thomas@schwinge.name>
Date: Wed, 9 Jun 2010 15:15:12 +0200
Subject: .library/IkiWiki/Plugin/reset_mtimes.pm: New.

---
 .library/IkiWiki/Plugin/reset_mtimes.pm | 84 +++++++++++++++++++++++++++++++++
 render_locally                          | 21 +++++++--
 2 files changed, 100 insertions(+), 5 deletions(-)
 create mode 100644 .library/IkiWiki/Plugin/reset_mtimes.pm

diff --git a/.library/IkiWiki/Plugin/reset_mtimes.pm b/.library/IkiWiki/Plugin/reset_mtimes.pm
new file mode 100644
index 00000000..a168652b
--- /dev/null
+++ b/.library/IkiWiki/Plugin/reset_mtimes.pm
@@ -0,0 +1,84 @@
+# Copyright © 2010 Thomas Schwinge <thomas@schwinge.name>
+
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 2, or (at your option) any later
+# version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+# 
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+package IkiWiki::Plugin::reset_mtimes;
+
+use warnings;
+use strict;
+use IkiWiki 3.00;
+
+# This plugin resets pages' / files' mtimes according to the RCS information
+# when using --refresh mode.
+# 
+# Note that the files' mtimes are *always* set, even if the file has
+# un-committed changes.
+# 
+# <http://ikiwiki.info/bugs/pagemtime_in_refresh_mode/>
+
+sub import
+{
+    hook (type => "needsbuild",
+	  id => "reset_mtimes",
+	  call => \&needsbuild);
+}
+
+sub needsbuild (@)
+{
+    # Only proceed if --gettime is in effect, as we're clearly not intersted in
+    # this functionality otherwise.
+    return unless $config{gettime};
+
+    my $files = shift;
+    foreach my $file (@$files)
+    {
+	# [TODO.  Perhaps not necessary.  Can this hook ever be called for
+	# removed pages -- that need to be ``rebuilt'' in the sense that
+	# they're to be removed?]  Don't bother for pages that don't exist
+	# anymore.
+	next unless -e "$config{srcdir}/$file";
+
+	my $page = pagename ($file);
+	debug ("needsbuild: <$file> <$page>");
+
+	# Only ever update -- otherwise ikiwiki shall do its own thing.
+	if (defined $IkiWiki::pagemtime{$page})
+	{
+	    debug ("pagemtime: " . $IkiWiki::pagemtime{$page});
+
+	    my $mtime = 0;
+	    eval
+	    {
+		$mtime = IkiWiki::rcs_getmtime ($file);
+	    };
+	    if ($@)
+	    {
+		print STDERR $@;
+	    }
+	    elsif ($mtime > 0)
+	    {
+		$IkiWiki::pagemtime{$page} = $mtime;
+
+		# We have to set the actual file's mtime too, as otherwise
+		# ikiwiki will update it again and again.
+		utime($mtime, $mtime, "$config{srcdir}/$file");
+	    }
+
+	    debug ("pagemtime: " . $IkiWiki::pagemtime{$page});
+	}
+    }
+}
+
+1
diff --git a/render_locally b/render_locally
index 9e257560..ca7856f5 100755
--- a/render_locally
+++ b/render_locally
@@ -12,27 +12,32 @@ export ROOT && ROOT=$(readlink -f "$(dirname "$0")") &&
 export LC_MESSAGES && LC_MESSAGES=C &&
 
 case $1 in
+  # Use this for rendering the set of pages which are to be installed under
+  # <http://www.gnu.org/software/hurd/>.
   --official)
-    # Use this for rendering the set of pages which are to be installed under
-    # <http://www.gnu.org/software/hurd/>.
     shift &&
+
     export TZ && TZ=UTC &&
     export DESTDIR && DESTDIR=$ROOT.rendered.official &&
+
     # Use ``--no-usedirs'' here, so that not too many separate directories have
     # to be created.
     #
-    # ``--gettime --rebuild'':
-    # <http://ikiwiki.info/bugs/pagemtime_in_refresh_mode/>
+    # Use ``--gettime --plugin update_mtimes'' to reset pages' / files' mtimes
+    # according to the RCS information when using --refresh mode.
     set x \
       --set wikistatedir="$ROOT"/.ikiwiki-official \
       --url http://www.gnu.org/software/hurd \
       --no-usedirs \
-      --gettime --rebuild \
+      --gettime --plugin reset_mtimes \
       "$@" &&
     shift;;
+
   --w3m-wrapper)
     shift &&
+
     export NO_MSG && NO_MSG=y &&
+
     # Disable the configured VCS, as the CGI wrapper together with using the
     # anonok plugin inhibits the propagation of authorship information.
     set x \
@@ -41,21 +46,27 @@ case $1 in
       --rcs norcs \
       "$@" &&
     shift &&
+
     exec \
       "$0" \
         --w3m \
         "$@";;
+
   --w3m)
     shift &&
+
     export DESTDIR && DESTDIR=$ROOT.rendered.w3m &&
+
     set x \
       --set wikistatedir="$ROOT"/.ikiwiki-w3m \
       --cgiurl hurd-web.cgi --w3mmode \
       "$@" &&
     shift &&
+
     exec \
       "$0" \
         "$@";;
+
   *)
     # Use ``--no-usedirs'' here, because when browsing local files, the web
     # browsers don't display `index.html' files by default when a hyperlink
-- 
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