[debsums] 119/184: rather than filing in the version at build time, figure it out in a smarter way during runtime

[Axel Beckert]

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abe pushed a commit to branch master
in repository debsums.

commit 72b73ba3a327c8b55a6429d1be19be458ced3f0e
Author: Ryan Niebur <ryanryan52 at gmail.com>
Date:   Sun Dec 20 13:42:27 2009 -0800

    rather than filing in the version at build time, figure it out in a smarter way during runtime
---
 debian/changelog |  4 +++-
 debsums.in       | 27 +++++++++++++++++++++++++--
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index f291f0f..dd4344a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -7,8 +7,10 @@ debsums (2.0.48) UNRELEASED; urgency=low
     (Closes: 559551)
   * update localepurge handling (Closes: #548278)
   * set Standards-Version to 3.8.3
+  * rather than filing in the version at build time, figure it out in a
+    smarter way during runtime
 
- -- Ryan Niebur <ryan at debian.org>  Sun, 20 Dec 2009 13:32:19 -0800
+ -- Ryan Niebur <ryan at debian.org>  Sun, 20 Dec 2009 13:42:25 -0800
 
 debsums (2.0.47) unstable; urgency=low
 
diff --git a/debsums.in b/debsums.in
index f4d48a5..8a5e821 100755
--- a/debsums.in
+++ b/debsums.in
@@ -17,10 +17,31 @@ use Digest::MD5;
 use constant ELF_MAGIC => "\177ELF";
 use Errno;
 use POSIX;
+use File::Basename;
+use File::Spec;
+
+sub version {
+    my $changelog = File::Spec->catfile(dirname($0), "debian", "changelog");
+    my $cmd;
+    if(-f $changelog) {
+        $cmd = "dpkg-parsechangelog '-l$changelog'";
+    } else {
+        $cmd = 'dpkg-query -s debsums';
+    }
+    $cmd .= ' | grep ^Version: | cut -d " " -f 2';
+    my $res = `$cmd`;
+    chomp($res);
+    if(!($res =~ /^[0-9.]+$/)) {
+        $res = "";
+    }
+    return $res;
+}
 
 (my $self = $0) =~ s!.*/!!;
+sub version_info {
+my $version_number = version();
 my $version = <<EOT;
-$self #VERSION#
+$self $version_number
 
 Copyright (c) 2002, 2004, 2005, 2006, 2007  Brendan O'Dea <bod\@debian.org>
 This is free software, licensed under the terms of the GNU General Public
@@ -30,6 +51,8 @@ PARTICULAR PURPOSE.
 Written by Brendan O'Dea <bod\@debian.org>, based on a program by
 Christoph Lameter <clameter\@debian.org> and Petr Cech <cech\@debian.org>.
 EOT
+return $version;
+}
 
 my $help = <<EOT;
 $self checks the MD5 sums of installed debian packages.
@@ -73,7 +96,7 @@ GetOptions (
     'ignore-permissions' => \my $ignore_permissions,
     g			=> sub { $gen_opt = 'missing' },
     help		=> sub { print $help; exit },
-    version		=> sub { print $version; exit },
+    version		=> sub { print version_info(); exit },
 ) or die "Try '$self --help' for more information.\n";
 
 sub can_ignore {

-- 
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