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pacman/contrib/pacsearch
Dan McGee 1ba0d84da2 pacsearch: rewrite in perl
This rewrite in perl blows the socks off the old shell script version for
large searches:

$ time ./pacsearch.perl ^.*$ >/dev/null
real    0m0.836s
user    0m0.593s
sys     0m0.217s

$ time pacsearch.sh ^.*$ >/dev/null
real    1m53.818s
user    1m16.818s
sys     0m33.694s

Functionality and output is identical to the old version with the exception
of the old version's missing EOL after all the output.  It should be a lot
easier to add new things like the --color flag that has been a TODO at the
top of the script for a long time.

Signed-off-by: Dan McGee <dan@archlinux.org>
2008-05-10 11:04:17 -05:00

133 lines
4.0 KiB
Perl
Executable File

#!/usr/bin/perl
# pacsearch - Adds color and install information to a 'pacman -Ss' search
#
# Copyright (C) 2008 Dan McGee <dpmcgee@gmail.com>
#
# Based off original shell script version:
# Copyright (C) 2006-2007 Dan McGee <dpmcgee@gmail.com>
#
# 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/>.
#TODO: colors flag on commandline
use strict;
use warnings;
my $progname = "pacsearch";
my $version = "2.0";
if ($#ARGV lt 0 || $ARGV[0] eq "--help" || $ARGV[0] eq "-h") {
print "$progname - Add color and install information to a pacman -Ss search\n";
print "Usage: $progname <pattern>\n";
print "Example: $progname ^gnome\n";
if ($#ARGV lt 0) {
exit 1;
}
exit 0;
}
if ($ARGV[0] eq "--version" || $ARGV[0] eq "-v") {
print "$progname version $version\n";
print "Copyright (C) 2006-2008 Dan McGee\n";
exit 0;
}
# define our colors to use when printing
my $CLR1 = "\e[0;34m";
my $CLR2 = "\e[0;32m";
my $CLR3 = "\e[0;35m";
my $CLR4 = "\e[0;36m";
my $CLR5 = "\e[0;31m";
my $CLR6 = "\e[0;33m";
my $CLR7 = "\e[1;36m";
my $INST = "\e[1;31m";
my $BASE = "\e[0m";
my $INSTMARK = $INST."***";
# color a "repo/pkgname pkgver" line based on the respository name
sub to_color {
my $line = shift;
$line =~ s/(^core\/.*)/$CLR1$1$BASE/;
$line =~ s/(^extra\/.*)/$CLR2$1$BASE/;
$line =~ s/(^community\/.*)/$CLR3$1$BASE/;
$line =~ s/(^testing\/.*)/$CLR4$1$BASE/;
$line =~ s/(^unstable\/.*)/$CLR5$1$BASE/;
$line =~ s/(^custom\/.*)/$CLR6$1$BASE/;
$line =~ s/(^local\/.*)/$CLR7$1$BASE/;
# any other unknown repository
$line =~ s/(^[\w-]*\/.*)/$CLR6$1$BASE/;
return $line;
}
my %allpkgs = ();
my $syncout = `pacman -Ss @ARGV`;
# split each sync search entry into its own array entry
my @syncpkgs = split(/\n^(?=\w)/m, $syncout);
# remove the extra \n from the last desc entry
if ($#syncpkgs >= 0) {
chomp($syncpkgs[$#syncpkgs]);
}
# counter var for packages, used here and in the query loop too
my $cnt = 0;
foreach $_ (@syncpkgs) {
# we grab 3 fields here: repo, name/ver, and desc
my @pkgfields = /^(.*?)\/(.*?)\n(.*)$/s;
# add a fourth field that will indicate install status
push (@pkgfields, "");
# add a fifth field that indicates original order
push (@pkgfields, $cnt++);
# add each sync pkg by name/ver to a hash table for quick lookup
$allpkgs{$pkgfields[1]} = [ @pkgfields ];
}
my $queryout = `pacman -Qs @ARGV`;
# split each querysearch entry into its own array entry
my @querypkgs = split(/\n^(?=\w)/m, $queryout);
# remove the extra \n from the last desc entry
if ($#querypkgs >= 0) {
chomp ($querypkgs[$#querypkgs]);
}
foreach $_ (@querypkgs) {
# we grab 3 fields here: repo, name/ver, and desc
my @pkgfields = /^(.*?)\/(.*?)\n(.*)$/s;
# check if the package was listed in the sync out
# if it is we want to mark it with a *** marker
if (exists $allpkgs{$pkgfields[1]}) {
# mark it in our fourth field as installed
@{ $allpkgs{$pkgfields[1]} }[3] = $INSTMARK;
} else {
# add a fourth field that will indicate install status
push (@pkgfields, $INSTMARK);
# add a fifth field that indicates original order (after sync)
push (@pkgfields, $cnt++);
# add our local-only package to the hash
$allpkgs{$pkgfields[1]} = [ @pkgfields ];
}
}
# sort by original order (the fifth field) and print
foreach $_ ( sort{ @{$allpkgs{$a}}[4] <=> @{$allpkgs{$b}}[4] } keys %allpkgs) {
my @v = @{$allpkgs{$_}};
my $line = "$v[0]/$v[1]";
$line = to_color($line);
# print install marker + colorized "repo/pkgname pkgver" string
print "$v[3]$line\n";
print "$v[2]\n";
}
#vim: set noet: