lsrpm

#!/bin/sh
############################################################ IDENT(1)
#
# $Title: Script to list RPMs in the order they were installed $
# $Copyright: 2019-2020 Devin Teske. All rights reserved. $
# $FrauBSD: lsrpm/lsrpm 2020-05-31 21:05:02 -0700 freebsdfrau $
#
############################################################ GLOBALS

pgm="${0##*/}" # Program basename

#
# Global exit status
#
SUCCESS=0
FAILURE=1

#
# Command-line options
#
VERBOSE=0	# -v

#
# Command-line arguments
#
START_EPOCH=0
STOP_EPOCH=0

#
# rpmquery formats
#
INSTALL_DATE='%{INSTALLTIME:date}'
INSTALL_TIME='%{INSTALLTIME}'
RPM_NAME='%{NAME}-%{VERSION}-%{RELEASE}'
RPMQUERY_FORMAT="$INSTALL_TIME $INSTALL_DATE $RPM_NAME"

############################################################ FUNCTIONS

usage()
{
	local fmt="$1"
	local optfmt="\t%-5s %s\n"
	exec >&2
	if [ "$fmt" ]; then
		shift 1 # fmt
		printf "%s: $fmt\n" "$pgm" "$@"
	fi
	printf "Usage: %s [-hv] [start_epoch] [stop_epoch]\n" "$pgm"
	printf "Options:\n"
	printf "$optfmt" "-h" "Print this text and exit."
	printf "$optfmt" "-v" "Verbose. Always show install time."
	exit $FAILURE
}

############################################################ MAIN

#
# Process command-line options
#
while getopts hv flag; do
	case "$flag" in
	v) VERBOSE=1 ;;
	*) usage # NOTREACHED
	esac
done
shift $(( $OPTIND - 1 ))

#
# Process command-line arguments
#
if [ $# -ge 1 -a $# -le 2 ]; then
	case "$1" in
	""|*[^0-9]*) usage "illegal argument -- %s" "$1" ;; # NOTREACHED
	esac
	START_EPOCH=$1
elif [ $# -ge 3 ]; then
	usage "Too many arguments" # NOTREACHED
fi
if [ $# -eq 2 ]; then
	case "$2" in
	""|*[^0-9]*) usage "illegal argument -- %s" "$2" ;; # NOTREACHED
	esac
	STOP_EPOCH=$2
fi

#
# List RPMs
#
rpm -qa --qf "$RPMQUERY_FORMAT\n" | sort -n | awk \
	-v start=$START_EPOCH \
	-v stop=$STOP_EPOCH \
	-v verbose=$VERBOSE \
	' # BEGIN-AWK
		$1 >= start && (stop == 0 || $1 <= stop) {
			print (!verbose && start > 0 ? $NF : $0)
		}
	' # END-AWK

################################################################################
# END
################################################################################