From ab7605d234b87866bf9456a8838d00984a66b5c5 Mon Sep 17 00:00:00 2001
From: Sebastian Harl <sh@tokkee.org>
Date: Wed, 13 Jun 2007 17:48:24 +0100
Subject: [PATCH] Added check_plugins.pl to check the build result of all
 plugins.

---
 debian/changelog        |   1 +
 debian/check_plugins.pl | 162 ++++++++++++++++++++++++++++++++++++++++
 debian/rules            |   1 +
 3 files changed, 164 insertions(+)
 create mode 100755 debian/check_plugins.pl

diff --git a/debian/changelog b/debian/changelog
index 9e65430..6cb8d1e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -30,6 +30,7 @@ collectd (4.0.2-1) experimental; urgency=low
   * Updated init script to only start a single collectd process.
   * Added examples/MyPlugin.pm.
   * Added XS-Vcs-{Git,Browser} tags.
+  * Added check_plugins.pl to check the build result of all plugins.
 
  -- Sebastian Harl <sh@tokkee.org>  Wed, 13 Jun 2007 11:11:22 +0100
 
diff --git a/debian/check_plugins.pl b/debian/check_plugins.pl
new file mode 100755
index 0000000..c173aee
--- /dev/null
+++ b/debian/check_plugins.pl
@@ -0,0 +1,162 @@
+#!/usr/bin/perl --
+#
+# collectd - check_plugins.pl
+# Copyright (C) 2006, 2007 Sebastian Harl
+#
+# 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; only version 2 of the License is applicable.
+#
+# 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 St, Fifth Floor, Boston, MA  02110-1301 USA
+#
+# Author:
+#   Sebastian Harl <sh at tokkee.org>
+
+# This script checks each plugin and reports the address of each plugin's
+# registered functions. It uses src/.libs/*.so for its checks.  This can be
+# used to check what kind of operations each plugin supports after it has been
+# built.
+
+use strict;
+use warnings;
+
+my $srcdir = 'src/';
+my $libdir = 'src/.libs';
+
+my $plugins = {};
+
+opendir(my $srcs, $srcdir);
+
+if (! $srcs) {
+	print STDERR "Could not open directory '$srcdir': $!\n"
+		. "Make sure you are in the toplevel source directory.\n";
+	exit 1;
+}
+
+while (my $dirent = readdir($srcs)) {
+	if ($dirent !~ m/^(.*)\.c$/) {
+		next;
+	}
+
+	my $name = $1;
+
+	open(my $src, "<", "$srcdir/$dirent");
+
+	if (! $src) {
+		print STDERR "Unable to open '$srcdir/$dirent': $!\n";
+		next;
+	}
+
+	while (my $line = <$src>) {
+		if ($line =~ m/plugin_register_(\w+)\s*\("([^"]+)",\s*(\w+)/) {
+			my ($t, $n, $f) = ($1, $2, $3);
+
+			$plugins->{$name}->{$n}->{$t} = $f;
+		}
+	}
+
+	close($src);
+} # while (my $dirent = readdir($srcs))
+
+closedir($srcs);
+
+opendir(my $libs, $libdir);
+
+if (! $libs) {
+	print STDERR "Could not open directory '$libdir': $!\n"
+		. "Make sure you ran 'make'.\n";
+	exit 1;
+}
+
+while (my $dirent = readdir($libs)) {
+	if ($dirent !~ m/^(.*)\.so$/) {
+		next;
+	}
+
+	my $name = $1;
+
+	if (! defined $plugins->{$name}) {
+		print STDERR "No information available for plugin '$name'!\n";
+		next;
+	}
+
+	open(my $nm, "-|", "nm $libdir/$dirent");
+
+	if (! $nm) {
+		print STDERR "Unable to open pipe from nm(1): $!\n";
+		next;
+	}
+
+	while (my $line = <$nm>) {
+		if ($line !~ m/^([0-9a-fA-F]{8,}) [tT] (\w+)$/) {
+			next;
+		}
+
+		my $adr = $1;
+		my $sym = $2;
+
+		for my $n (keys %{$plugins->{$name}}) {
+			for my $t (keys %{$plugins->{$name}->{$n}}) {
+				if (defined $plugins->{$name}->{$n}->{$t}
+						&& ($sym eq $plugins->{$name}->{$n}->{$t})) {
+					$plugins->{$name}->{$n}->{$t} = "0x" . $adr;
+				}
+			}
+		}
+	}
+
+	close($nm);
+} # while (my $dirent = readdir($libs))
+
+closedir($libs);
+
+print 'plugin name     config   init     read     write    log      shutdown';
+print $/ . '-' x 70 . $/;
+
+for my $name (sort keys %$plugins) {
+	if (! -f "$libdir/$name.so") {
+		print "$name.c has not been compiled.\n";
+		next;
+	}
+
+	for my $n (sort keys %{$plugins->{$name}}) {
+		dump_plugin_data($n, $plugins->{$name}->{$n});
+	}
+}
+
+exit 0;
+
+sub dump_plugin_data {
+	my $name  = shift || return;
+	my $funcs = shift || return;
+
+	if (length($name) > 15) {
+		$name = substr($name, 0, 12) . '...';
+	}
+
+	printf '%-15s ', $name;
+
+	foreach my $t ("config", "init", "read", "write", "log", "shutdown") {
+		if (! defined $funcs->{$t}) {
+			print '-        ';
+		}
+		elsif ($funcs->{$t} =~ m/^0x[A-Fa-f0-9]{8,}$/) {
+			print substr($funcs->{$t}, -8, 8) . " ";
+		}
+		else {
+			print 'nA       ';
+		}
+	}
+
+	print $/;
+	return 1;
+} # sub dump_plugin_data
+
+# vim: set sw=4 ts=4 tw=78 noexpandtab :
diff --git a/debian/rules b/debian/rules
index 4389e1c..f25daa0 100755
--- a/debian/rules
+++ b/debian/rules
@@ -44,6 +44,7 @@ build-stamp: config.status
 	dh_testdir
 	
 	$(MAKE)
+	perl ./debian/check_plugins.pl
 	
 	touch build-stamp
 
-- 
2.30.2