From 35ded8f2f8f6d1f10d95c20e55bce60225855683 Mon Sep 17 00:00:00 2001
From: John McQuah <jquah@mx.sdf.org>
Date: Tue, 21 Mar 2023 20:34:20 -0400
Subject: [PATCH] prtcheckmissing: initial import, honoring custom rules in
 pkgadd.conf

---
 scripts/prtcheckmissing | 50 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100755 scripts/prtcheckmissing

diff --git a/scripts/prtcheckmissing b/scripts/prtcheckmissing
new file mode 100755
index 0000000..cea9351
--- /dev/null
+++ b/scripts/prtcheckmissing
@@ -0,0 +1,50 @@
+#!/usr/bin/perl
+#
+# $Id: prtcheckmissing,v 1.1 2003/10/27 15:26:50 opel Exp $
+
+use strict;
+use warnings;
+
+my @missing;
+my @mask = parse_pkgadd_conf();
+
+local $/ = ""; # read files paragraph-wise; see ``perldoc perlvar''
+
+open my $dbh, "< /var/lib/pkg/db"
+  or die "Couldn't open package database!\n";
+
+while(<$dbh>) {
+  my ($pkg_name, $pkg_version, @pkg_file) = split /\n/;
+  @missing = grep { (! -e "/$_") && wanted($_, @mask) } @pkg_file;
+  next if not @missing;
+
+  print map "/$_ $pkg_name\n", @missing;
+}
+ 
+close($dbh);
+
+sub parse_pkgadd_conf {
+  my @unwanted;
+  local $/ = "\n";
+  open my $pah, "< /etc/pkgadd.conf"
+    or die "Couldn't open pkgadd install rules!\n";
+
+  while(<$pah>) {
+    next if /^\s*#/ or /^$/;
+    my ($event, $pattern, $choice) = split;
+    push (@unwanted, qr/$pattern/s) if ($event eq "INSTALL" and $choice eq "NO");
+  }
+  close ($pah);
+
+  return @unwanted;
+}
+
+sub wanted {
+  my $testfile = shift;
+  my $retval = 1;
+  while (my $regexp=shift) {
+    $retval = 0 if $testfile =~ $regexp;
+    last if $retval==0;
+  }
+  return $retval;
+}