From 8eda2b1779a788247a7a92141d477ee51d7e0ae3 Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Sat, 19 Sep 2026 21:01:14 -0400
Subject: find_installed_removed: added.

---
 Makefile               |  2 +-
 NEWS                   |  2 ++
 find_installed_removed | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100755 find_installed_removed

diff --git a/Makefile b/Makefile
index 8cf315e..dc822e9 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ MAN1DIR=$(MANDIR)/man1
 DOCDIR=$(PREFIX)/doc/$(PROJ)-$(VERSION)
 
 DOCS=README QUICKSTART TODO pre-commit-sbolint NEWS CREDITS
-SCRIPTS=sbopkglint sbolint sbofixinfo sbodl explodepkg.sbopkglint find_installed_orphans
+SCRIPTS=sbopkglint sbolint sbofixinfo sbodl explodepkg.sbopkglint find_installed_orphans find_installed_removed
 
 all:
 	@echo "Use 'make install PREFIX=<path>' to install $(PROJ)."
diff --git a/NEWS b/NEWS
index ce1ca20..331f598 100644
--- a/NEWS
+++ b/NEWS
@@ -4,6 +4,8 @@ user-visible changes between releases.
 New in 0.9.9:
 =============
 
+New tools added: find_installed_orphans and find_installed_removed.
+
 sbolint:
 - Having multiple *.SlackBuild files is now an error.
 - doinst.sh should not use chmod. This is a note rather than
diff --git a/find_installed_removed b/find_installed_removed
new file mode 100755
index 0000000..ad088cc
--- /dev/null
+++ b/find_installed_removed
@@ -0,0 +1,57 @@
+#!/usr/bin/perl -w
+
+($SELF = $0) =~ s,.*/,,;
+if(@ARGV) {
+	print <<EOF;
+$SELF - find installed SBo packages that are not in the SBo repo
+
+Usage: $SELF
+
+Output is a list of installed SBo packages that are not listed on the
+SBo site. Usually this means the builds were removed from the repo,
+but if you are a SBo developer, it could also find builds that you
+never got around to submitting to SBo.
+
+Exit status is 0 (success) if no removed packages are installed
+(if there is no output), or 1 (failure) if any removed packages are
+installed.
+
+By default, the 15.0 repo is searched, but you can export
+SLACKVER in the environment to check a different version.
+
+To use an alternate package database directory (other than
+/var/log/packages), set PKGDIR in the environment.
+EOF
+	exit 0;
+}
+
+# TODO: get this from /etc/slackware-version or /etc/os-release
+$SLACKVER = $ENV{SLACKVER} || "15.0";
+
+# use the .gz version, saves a lot of bandwidth
+$URL = "https://slackbuilds.org/slackbuilds/$SLACKVER/SLACKBUILDS.TXT.gz";
+
+$PKGDIR = $ENV{PKGDIR} || "/var/log/packages";
+chdir $PKGDIR || die "can't cd to $PKGDIR: $!\n";
+
+for(<*_SBo>) {
+	my $r = reverse;
+	my @a = split /-/, $r, 4;
+	my $pkg = reverse $a[3];
+	$installed{$pkg}++;
+}
+
+open my $pipe, "wget -qO- $URL | gzip -dc |" or die $!;
+while(<$pipe>) {
+	chomp;
+	next unless m{^SLACKBUILD NAME: (.*)$};
+	$in_repo{$1}++;
+}
+close $pipe;
+
+$count = 0;
+for(sort keys %installed) {
+	$count++, print "$_\n" unless $in_repo{$_};
+}
+
+exit ($count != 0);
-- 
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