/usr/bin/vrms is in vrms 1.16.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#
# 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.
#
use strict;
use warnings;
use Getopt::Long;
# Declaration of important/main variables.
my $quiet = 0;
my $sparse = 0;
my $help = 0;
my $explain = 1;
my $debug = 0;
my $reasondir = '/usr/share/vrms/reasons/';
my %reason = ();
#
# Auxiliary functions section (FIXME: put them in a file by themselves).
#
# sub usage:
# Input: nothing.
# Output: Messages to stdout telling the usage of the program.
sub usage() {
print <<EOF;
Usage: vrms [OPTIONS] ...
--quiet, -q Do nothing if there are no non-free packages installed.
--explain, -e Give a brief explanation of why a package is non-free,
if available.
--sparse, -s Just list non-free packages, nothing else.
--reason-dir=DIR Use DIR as the reason directory.
--help, -h Display this help.
--debug, -d Generate debugging information.
All options can be prefixed with "no" (eg: --noexplain) to turn them off.
EOF
}
# sub parse_reason_file:
# Input: the name of a reason file and the global hash %reason
# Output: the hash %reason filled with reasons from the input file
# (FIXME: %reason shouldn't be global)
sub parse_reason_file {
my $file = shift;
print "Parsing reason file $file\n" if $debug >= 1;
open(REASON, "<", $file) or
die "Can't open FILE [$file]: $!\n";
while (my $line = <REASON>) {
chomp $line;
# Grab a line of the form 'package: reason', skip if we don't match
my ($pkg, $reason) = ($line =~ /^(\S+):\s+(.*)\s*$/) or next;
print "'$pkg' because '$reason'\n" if ($debug >= 1);
# If this is _our_ master file, then prefer anything
# else (so that package maintainers can override)
next if exists $reason{$pkg} and $file =~ /\/vrms$/;
$reason{$pkg} = $reason;
}
close REASON or
die "Can't close FILE [$file]: $!\n";
}
#
# Main program starts here.
#
GetOptions('q|quiet' => \$quiet,
's|sparse' => \$sparse,
'e|explain!' => \$explain,
'reason-dir=s' => \$reasondir,
'd|debug+' => \$debug,
'h|help' => \$help);
if ($help) {
usage();
exit 0;
}
opendir(REASONDIR, $reasondir) or
die "Can't open DIR [$reasondir]: $!\n";
# Parse all the reason files in $reasondir except those beginning with
# a . or ending with a ~
parse_reason_file("$reasondir/$_")
foreach (grep {!/~$/ && !/^\./} readdir(REASONDIR));
closedir REASONDIR or
die "Can't close DIR [$reasondir]: $!\n";
my $statusfile = '/var/lib/dpkg/status';
my $is_nonfree = 0; ### preset none found, yet
my %nonfree = ();
my $is_other_nonfree = 0; ### preset none found, yet
my %other_nonfree = ();
my $is_contrib = 0; ### preset none found, yet
my %contrib = ();
my $is_other_contrib = 0; ### preset none found, yet
my %other_contrib = ();
my %pkg_status = ();
my $pkgcnt = 0;
my $clumpcnt = 0;
my $dontcarelines = 5; ### no. of lines a non-installed entry may have in the statusfile
my $sysname = "";
chop($sysname = `uname -n`);
open(PKG_SOURCE, "< $statusfile") or
die "Can't open FILE [$statusfile]: $!\n";
$/ = ""; ### snarf a paragraph at a time
while(<PKG_SOURCE>) {
my $clump = $_;
$clumpcnt++;
my (@pkglines) = split(/\n/, $clump);
### iff more than $dontcarelines lines, package is installed, so process it
### (speed-up by skipping don't-care entries)
if (@pkglines > $dontcarelines) {
my $pkg = ""; ### name of this package
my $pkgstatus = ""; ### status
my $plan = ""; ### install plan (hold, deinstall, purge, install, etc.)
my $state = ""; ### state (ok or ???)
my $status = ""; ### status (installed, not-installed, etc.)
my $section = ""; ### section this is where non-free is marked
my $shortdescr = ""; ### one-liner description of pkg
my $linenbr = 0; ### current line number of this pkackag's info
my $label = ""; ### junk field (not used, except to catch split values)
my $has_pkg = 0; ### reset the markers
my $has_status = 0;
my $has_section = 0;
foreach (@pkglines) {
chomp;
$linenbr++;
if (/^Package:/) {
($label, $pkg) = split(/:\s+/,$_,2);
$pkgcnt++;
printf "pkg(%4.4d) pkg=[%s]\n",$pkgcnt,$pkg if $debug >= 1;
$has_pkg = 1; ### we have necessary section
next;
}
if (/^Status:/) {
my $label = "";
($label, $pkgstatus) = split(/:\s+/,$_,2);
print "\tpkgstatus=[$pkgstatus]\n" if $debug >= 1;
$pkg_status{$pkg} = $pkgstatus;
($plan, $state, $status) = split(/\s+/,$pkgstatus);
print "\t\tplan=[$plan]\n" if $debug >= 1;
print "\t\tstate=[$state]\n" if $debug >= 1;
print "\t\tstatus=[$status]\n" if $debug >= 1;
$has_status = 1; ### we have necessary section
next;
}
if (/^Section:/) {
my $label = "";
($label, $section) = split(/:\s+/,$_,2);
print "\tsection=[$section]\n" if $debug >= 1;
$has_section = 1; ### we have necessary section
if ($section =~ /contrib|non-free|restricted|multiverse|partner/) {
### read thru rest of array to find descr instead of waiting for it
my $found_descr =0;
while (! $found_descr) {
if ($linenbr > $#pkglines) {
### iff badly formed entry ensure blank description
print "\tEEEE shortdescr=[$shortdescr]\n" if $debug >= 1;
last;
}
my $dline = $pkglines[$linenbr++];
if($dline =~ /^Description:/) {
($label, $shortdescr) = split(/:\s+/,$dline,2);
print "\tshortdescr=[$shortdescr]\n" if $debug >= 1;
$found_descr = 1;
}
}
if ($section =~ /contrib/) {
if (lc $status eq 'installed') {
$is_contrib = 1;
$contrib{$pkg} = $shortdescr;
} else {
$is_other_contrib = 1;
$other_contrib{$pkg} = $shortdescr;
}
} else {
if (lc $status eq 'installed') {
$is_nonfree = 1;
$nonfree{$pkg} = $shortdescr;
} else {
$is_other_nonfree = 1;
$other_nonfree{$pkg} = $shortdescr;
}
}
}
last; ### this is last desriptor of package we care about so end loop
} else {
### un-processed lines from package info
if($debug >= 1) {
print "\t\t--- $_\n";
}
}
}
if (!$has_status or !$has_pkg) {
print STDERR "vrms: ERROR- Badly formed dpkg-status entry #$clumpcnt!\n";
print STDERR " pkg=[$pkg], pkgstatus=[$pkgstatus], section=[$section] \n";
}
} else {
### Entries which are 2 or 4 lines are not-installed
if ($debug >= 1) {
### emit debug so can veryify parsing
my $lineCt = @pkglines;
print " SKIPPED <5: $lineCt lines\n";
foreach (@pkglines) {
my $spacer = ($_ =~ /Package:/) ? "" : " ";
print " SKIPPED <5:$spacer [$_]\n";
}
}
}
}
close (PKG_SOURCE) or
die "Can't close FILE [$statusfile]: $!\n";
#print "$pkgcnt packages installed\n";
my $nfcnt = 0;
my $pkgname = "";
my $nonfreecnt = (keys %nonfree);
if($is_nonfree) {
if($sparse) {
foreach $pkgname (sort keys (%nonfree)) {
$nfcnt++;
print "$pkgname\n";
}
} else {
$~ = "nonfree_head";
write ;
$~ = "nfp";
foreach $pkgname (sort keys(%nonfree) ) {
$nfcnt++;
write ;
print " Reason: $reason{$pkgname}\n"
if (exists $reason{$pkgname} and $explain);
}
}
}
my $pnfcnt = 0;
my $other_nonfreecnt = (keys %other_nonfree);
if($is_other_nonfree) {
if($sparse) {
foreach $pkgname (sort keys(%other_nonfree)) {
$pnfcnt++;
print "$pkgname\n";
}
} else {
$~ = "nonfree_partialhead";
write;
$~ = "pnf";
foreach $pkgname (sort keys(%other_nonfree)) {
$pnfcnt++;
write;
print " Reason: $reason{$pkgname}\n"
if (exists $reason{$pkgname} and $explain);
}
}
}
my $cbcnt = 0;
my $contribcnt = (keys %contrib);
if($is_contrib) {
print "\n";
if($sparse) {
foreach $pkgname (sort keys (%contrib)) {
$cbcnt++;
print "$pkgname\n";
}
} else {
$~ = "contrib_head";
write ;
$~ = "cbp";
foreach $pkgname (sort keys(%contrib) ) {
$cbcnt++;
write ;
print " Reason: $reason{$pkgname}\n"
if (exists $reason{$pkgname} and $explain);
}
}
}
my $pcbcnt = 0;
my $other_contribcnt = (keys %other_contrib);
if($is_other_contrib) {
if($sparse) {
foreach $pkgname (sort keys(%other_contrib)) {
$pcbcnt++;
print "$pkgname\n";
}
} else {
$~ = "contrib_partialhead";
write;
$~ = "pcb";
foreach $pkgname (sort keys(%other_contrib)) {
$pcbcnt++;
write;
print " Reason: $reason{$pkgname}\n"
if (exists $reason{$pkgname} and $explain);
}
}
}
if (!$quiet and !$sparse) {
printf "\n";
if ($nfcnt != 0 or $pnfcnt != 0) {
my $total_nonfree = $nonfreecnt + $other_nonfreecnt;
my $total_installed = $pkgcnt;
my $percentage = $total_nonfree * 100 / $total_installed;
printf " %d non-free packages, %2.1f%% of %d installed packages.\n",
$total_nonfree, $percentage, $total_installed;
}
if ($cbcnt != 0 or $pcbcnt != 0) {
my $total_contrib = $contribcnt + $other_contribcnt;
my $total_installed = $pkgcnt;
my $percentage = $total_contrib * 100 / $total_installed;
printf " %d contrib packages, %2.1f%% of %d installed packages.\n",
$total_contrib, $percentage, $total_installed;
}
}
if (!$quiet and $nfcnt == 0 and $pnfcnt == 0 and $cbcnt == 0 and $pcbcnt == 0) {
print "No non-free or contrib packages installed on $sysname! rms would be proud.\n"
}
format nonfree_head =
@||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
"Non-free packages installed on $sysname"
.
format nonfree_partialhead =
@||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
"Non-free packages with status other than installed on $sysname"
.
format contrib_head =
@||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
"Contrib packages installed on $sysname"
.
format contrib_partialhead =
@||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
"Contrib packages with status other than installed on $sysname"
.
format nfp =
@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$pkgname, $nonfree{$pkgname}
.
format pnf =
@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @<@<<@< @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$pkgname, '(', $pkg_status{$pkgname},')', $other_nonfree{$pkgname}
.
format cbp =
@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$pkgname, $contrib{$pkgname}
.
format pcb =
@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @<@<<@< @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$pkgname, '(', $pkg_status{$pkgname},')', $other_contrib{$pkgname}
.
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