The following commit has been merged in the master branch:
commit 17b854753ad135acff4a3f492c3d48910ab4dc11
Author: Guillem Jover <guil...@debian.org>
Date: Wed Jun 20 04:20:26 2012 +0200
Dpkg::BuildEnv: New module to track build environment variables
diff --git a/scripts/Dpkg/BuildEnv.pm b/scripts/Dpkg/BuildEnv.pm
new file mode 100644
index 0000000..511ba24
--- /dev/null
+++ b/scripts/Dpkg/BuildEnv.pm
@@ -0,0 +1,105 @@
+# Copyright © 2012 Guillem Jover <guil...@debian.org>
+#
+# 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 of the License, 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, see <http://www.gnu.org/licenses/>.
+
+package Dpkg::BuildEnv;
+
+use strict;
+use warnings;
+
+our $VERSION = "0.01";
+
+my %env_modified = ();
+my %env_accessed = ();
+
+=encoding utf8
+
+=head1 NAME
+
+Dpkg::BuildEnv - track build environment
+
+=head1 DESCRIPTION
+
+The Dpkg::BuildEnv module is used by dpkg-buildflags to track the build
+environment variables being used and modified.
+
+=head1 FUNCTIONS
+
+=over 4
+
+=item $bf->set($varname, $value)
+
+Update the build environment variable $varname with value $value. Record
+it as being accessed and modified.
+
+=cut
+
+sub set {
+ my ($varname, $value) = @_;
+ $env_modified{$varname} = 1;
+ $env_accessed{$varname} = 1;
+ $ENV{$varname} = $value;
+}
+
+=item $bf->get($varname)
+
+Get the build environment variable $varname value. Record it as being
+accessed.
+
+=cut
+
+sub get {
+ my ($varname) = @_;
+ $env_accessed{$varname} = 1;
+ return $ENV{$varname};
+}
+
+=item $bf->has($varname)
+
+Return a boolean indicating whether the environment variable exists.
+Record it as being accessed.
+
+=cut
+
+sub has {
+ my ($varname) = @_;
+ $env_accessed{$varname} = 1;
+ return exists $ENV{$varname};
+}
+
+=item my @list = $bf->list_accessed()
+
+Returns a list of all environment variables that have been accessed.
+
+=cut
+
+sub list_accessed {
+ return sort keys %env_accessed;
+}
+
+=item my @list = $bf->list_modified()
+
+Returns a list of all environment variables that have been modified.
+
+=cut
+
+sub list_modified {
+ return sort keys %env_modified;
+}
+
+=back
+
+=cut
+
+1;
diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 142b1ca..3172097 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -55,6 +55,7 @@ CLEANFILES = \
perllibdir = $(PERL_LIBDIR)
nobase_dist_perllib_DATA = \
Dpkg/Arch.pm \
+ Dpkg/BuildEnv.pm \
Dpkg/BuildFlags.pm \
Dpkg/BuildOptions.pm \
Dpkg/Changelog.pm \
diff --git a/scripts/po/POTFILES.in b/scripts/po/POTFILES.in
index fd33fd0..b00cb52 100644
--- a/scripts/po/POTFILES.in
+++ b/scripts/po/POTFILES.in
@@ -17,6 +17,7 @@ scripts/dpkg-shlibdeps.pl
scripts/dpkg-source.pl
scripts/changelog/debian.pl
scripts/Dpkg/Arch.pm
+scripts/Dpkg/BuildEnv.pm
scripts/Dpkg/BuildFlags.pm
scripts/Dpkg/BuildOptions.pm
scripts/Dpkg/Compression.pm
--
dpkg's main repository
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