From 818a53e13ab7d86f84231aa30bac2956a93ea292 Mon Sep 17 00:00:00 2001
From: w00t <w00t@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Tue, 4 Aug 2009 21:49:35 +0000
Subject: [PATCH] Track installed module versions, so we can do upgrades
 properly.

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@11489 e03df62e-2008-0410-955e-edbf42e46eb7
---
 make/configure.pm | 17 +----------------
 modulemanager     | 38 +++++++++++++++++++++++++++++++++++++-
 2 files changed, 38 insertions(+), 17 deletions(-)

diff --git a/make/configure.pm b/make/configure.pm
index 05db6004e..ae88d90ce 100644
--- a/make/configure.pm
+++ b/make/configure.pm
@@ -20,7 +20,7 @@ use warnings FATAL => qw(all);
 use Exporter 'import';
 use POSIX;
 use make::utilities;
-our @EXPORT = qw(promptnumeric dumphash is_dir getmodules getrevision getcompilerflags getlinkerflags getdependencies getmodversion nopedantic resolve_directory yesno showhelp promptstring_s);
+our @EXPORT = qw(promptnumeric dumphash is_dir getmodules getrevision getcompilerflags getlinkerflags getdependencies nopedantic resolve_directory yesno showhelp promptstring_s);
 
 my $no_svn = 0;
 
@@ -122,21 +122,6 @@ sub getdependencies {
 	return "";
 }
 
-sub getmodversion {
-	my ($file) = @_;
-	open(FLAGS, $file) or return "";
-	while (<FLAGS>) {
-		if (m#(?:^/* \$|")ModVersion: (\S+)(?: \*\/$|")#) {
-			my $x = translate_functions($1, $file);
-			next if ($x eq "");
-			close(FLAGS);
-			return $x;
-		}
-	}
-	close(FLAGS);
-	return "";
-}
-
 sub nopedantic {
 	my ($file) = @_;
 	open(FLAGS, $file) or return "";
diff --git a/modulemanager b/modulemanager
index 96d58834d..68d32324d 100755
--- a/modulemanager
+++ b/modulemanager
@@ -24,6 +24,7 @@ my %url_seen;
 
 sub parse_url;
 
+# retrieve and parse entries from sources.list
 sub parse_url {
 	my $src = shift;
 	return if $url_seen{$src};
@@ -65,6 +66,29 @@ sub parse_url {
 	}
 }
 
+# hash of installed module versions from our mini-database, key (m_foobar) to version (00abacca..).
+my %mod_versions;
+
+# useless helper stub
+sub getmodversion {
+	my ($file) = @_;
+	return $mod_versions{$file};
+}
+
+# read in installed versions
+if (-e '.modulemanager')
+{
+	open SRC, '.modulemanager' or die ".modulemanager exists but i can't read it: $!";
+	while (<SRC>)
+	{
+		s/\n//;
+		(my $mod, my $ver) = split(/ /, $_);
+		$mod_versions{$mod} = $ver;
+	}
+	close SRC;
+}
+
+# read in external URL sources
 open SRC, 'sources.list' or die "Could not open sources.list: $!";
 while (<SRC>) {
 	next if /^\s*#/;
@@ -74,6 +98,7 @@ close SRC;
 
 getmodules(1);
 
+# determine core version
 `./src/version.sh` =~ /InspIRCd-([0-9.]+)/ or die "Cannot determine inspircd version";
 $installed{core} = $1;
 $modules{core}{$1} = {
@@ -83,10 +108,11 @@ $modules{core}{$1} = {
 	from => 'local file',
 };
 
+# set up core module list
 for my $modname (@modlist) {
 	my $mod = "m_$modname";
 	my $modfile = "src/modules/$mod.cpp";
-	my $ver = getmodversion($modfile) || '0.0';
+	my $ver = getmodversion($mod) || '0.0';
 	$ver =~ s/\$Rev: (.*) \$/$1/; # for storing revision in SVN
 	$installed{$mod} = $ver;
 	next if $modules{$mod}{$ver};
@@ -270,10 +296,20 @@ for my $mod (sort keys %todo) {
 	} else {
 		print "Installing $mod $ver from $url";
 	}
+	$mod_versions{$mod} = $ver;
+
 	my $stat = getstore($url, "src/modules/$mod.cpp");
 	if ($stat == 200) {
 		print " - done\n";
 	} else {
 		print " - HTTP $stat\n";
 	}
+
+	# write database of installed versions
+	open SRC, '>.modulemanager' or die "can't write installed versions to .modulemanager, won't be able to track upgrades properly: $!";
+	foreach my $key (keys %mod_versions)
+	{
+		print SRC "$key $mod_versions{$key}\n";
+	}
+	close SRC;
 }
-- 
2.39.2