From 29550c62bcd527c6ae1a74e3534db51b1e5deec7 Mon Sep 17 00:00:00 2001
From: Harald Pfeiffer <coding@lirion.de>
Date: Sun, 3 Oct 2021 15:12:22 +0200
Subject: +aptitude "replacement"

---
 bin/aptitude | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100755 bin/aptitude

diff --git a/bin/aptitude b/bin/aptitude
new file mode 100755
index 0000000..54cd585
--- /dev/null
+++ b/bin/aptitude
@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+# vim:ts=4
+
+# This is just a replacement - for quite a while, while already abandoning aptitude, I still kept
+# aptitude installed just for typing "aptitude why $package". This script just does this.
+
+# Converting because we need ${ARGARR[*]}
+ARGARR=( "$@" )
+
+MYERR="\\033[1;31mE:\\033[0m"
+
+function myhelp {
+	printf "USAGE: %b ( why PACKAGE [PACKAGE ..] | help )\\n\\n" "$(basename "$0")"
+	(
+		printf "why:;Lists the recursive depends of a package, i.e. why it is installed.\\n"
+		printf " ;Wrapper to 'apt[-cache] rdepends --installed PACKAGE'\\n"
+		printf "help:;This help"
+	)|column -ts\;
+	printf "\\n"
+}
+if [ -z "$1" ];then
+	printf "%b No parameter supplied.\\n" "$MYERR" >&2
+	exit 10
+fi
+
+case "$1" in
+	help|"-h"|"--help")
+		myhelp
+		exit 0
+	;;
+	why)
+		if [ -z "$2" ];then
+			printf "%b No package name(s) supplied.\\n" "$MYERR" >&2
+			exit 12
+		fi
+		for i in "${@:2}";do
+			IFS=$'\n'
+			# shellcheck disable=SC2207
+			WHYARR=( $(apt rdepends --installed "$i" 2>/dev/null) )
+			if [ "$?" -ne 0 ];then
+				apt rdepends --installed "$i" >/dev/null
+				exit 2
+			fi
+			unset IFS
+			WHYDEPS="$(printf "%b\\n" "${WHYARR[@]}"|grep -P "^[\ \t]*Depends:")"
+			WHYBREAKS="$(printf "%b\\n" "${WHYARR[@]}"|grep -P "^[\ \t]*Breaks:")"
+			#WHYARCHS="$(printf "%b\\n" "${WHYARR[@]}"|grep -P "^[\ \t]*$i:")"
+			printf "%b\\n" "$i"
+			for (( j=0;j<${#i};++j ));do printf "=";done;printf "\\n"
+			printf "Installed packages with dependencies:\\n"
+			if [ -n "$WHYDEPS" ];then
+				printf "%b\\n" "$WHYDEPS"
+			else
+				printf "  NO INSTALLED DEPENDENCIES\\n"
+			fi
+			if [ -n "$WHYBREAKS" ];then
+				printf "Supplemental information:\\n"
+	 			printf "%b\\n" "$WHYBREAKS"
+			fi
+			printf "\\n"
+		done
+	;;
+	*)
+		printf "%b Arguments not understood: %b\\n" "$MYERR" "${ARGARR[*]}" >&2
+		exit 11
+	;;
+esac
-- 
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