The following commit has been merged in the master branch:
commit e1fb5e5c6be00244636d0dfd7c92b88673c7d839
Author: Raphaël Hertzog <[email protected]>
Date: Mon Nov 9 22:39:25 2009 +0100
Dpkg::Conf: new module to parse options from a configuration file
diff --git a/scripts/Dpkg/Conf.pm b/scripts/Dpkg/Conf.pm
new file mode 100644
index 0000000..2de197f
--- /dev/null
+++ b/scripts/Dpkg/Conf.pm
@@ -0,0 +1,117 @@
+# Copyright © 2009 Raphaël Hertzog <[email protected]>
+#
+# 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::Conf;
+
+use strict;
+use warnings;
+
+use Dpkg::Gettext;
+use Dpkg::ErrorHandling;
+
+use overload
+ '@{}' => sub { $_[0]->{'options'} },
+ '""' => sub { join(" ", @{$_[0]->{'options'}}) },
+ fallback => 1;
+
+=head1 NAME
+
+Dpkg::Conf - parse dpkg configuration files
+
+=head1 DESCRIPTION
+
+The Dpkg::Conf object can be used to read options from a configuration
+file. It can exports an array that can then be parsed exactly like @ARGV.
+
+=head1 FUNCTIONS
+
+=over 4
+
+=item my $conf = Dpkg::Conf->new()
+
+Create a new Dpkg::Conf object.
+
+=cut
+
+sub new {
+ my ($this, %opts) = @_;
+ my $class = ref($this) || $this;
+
+ my $self = {
+ options => [],
+ };
+ bless $self, $class;
+
+ return $self;
+}
+
+=item @$conf
+
+Returns the list of options to be parsed.
+
+=item $conf->load($file)
+
+Read options from a file. Return the number of options parsed.
+
+=item $conf->parse($fh)
+
+Parse options from a file handle. Return the number of options parsed.
+
+=cut
+
+sub load {
+ my ($self, $file) = @_;
+ open(my $fh, "<", $file) or syserr(_g("cannot read %s"), $file);
+ my $ret = $self->parse($fh, $file);
+ close($fh);
+ return $ret;
+}
+
+sub parse {
+ my ($self, $fh, $desc) = @_;
+ my $count = 0;
+ while (<$fh>) {
+ chomp;
+ s/^\s+//; s/\s+$//; # Strip leading/trailing spaces
+ s/\s+=\s+/=/; # Remove spaces around the first =
+ s/\s+/=/ unless m/=/; # First spaces becomes = if no =
+ next if /^#/ or /^$/; # Skip empty lines and comments
+ if (/^(\S+)(?:=(.*))?$/) {
+ my ($name, $value) = ($1, $2);
+ $name = "--$name" unless $name =~ /^-/;
+ if (defined $value) {
+ $value =~ s/^"(.*)"$/$1/ or $value =~ s/^'(.*)'$/$1/;
+ push @{$self->{'options'}}, "$name=$value";
+ } else {
+ push @{$self->{'options'}}, $name;
+ }
+ $count++;
+ } else {
+ warning(_g("invalid syntax for option in %s, line %d"),
+ $desc, $.);
+ }
+ }
+ return $count;
+}
+
+=back
+
+=head1 AUTHOR
+
+Raphaël Hertzog <[email protected]>.
+
+=cut
+
+1;
diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index a3468ae..27ff34d 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -96,6 +96,7 @@ nobase_dist_perllib_DATA = \
Dpkg/Changelog/Parse.pm \
Dpkg/Checksums.pm \
Dpkg/Compression.pm \
+ Dpkg/Conf.pm \
Dpkg/Control.pm \
Dpkg/Control/Changelog.pm \
Dpkg/Control/Fields.pm \
diff --git a/scripts/po/POTFILES.in b/scripts/po/POTFILES.in
index 82a400a..97d44fc 100644
--- a/scripts/po/POTFILES.in
+++ b/scripts/po/POTFILES.in
@@ -21,6 +21,7 @@ scripts/Dpkg/Changelog/Entry.pm
scripts/Dpkg/Changelog/Entry/Debian.pm
scripts/Dpkg/Changelog/Parse.pm
scripts/Dpkg/Checksums.pm
+scripts/Dpkg/Conf.pm
scripts/Dpkg/Control.pm
scripts/Dpkg/Control/Changelog.pm
scripts/Dpkg/Control/Fields.pm
--
dpkg's main repository
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