From b93a1920abdfdcf3a2329eaf9b16197a31857eae Mon Sep 17 00:00:00 2001
From: Nick Bowler <nbowler@draconx.ca>
Date: Wed, 28 May 2008 15:23:37 -0400
Subject: [PATCH] Update thumbnail.zsh to use zsh conventions.

---
 thumbnail.zsh | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/thumbnail.zsh b/thumbnail.zsh
index 245cba2..a967803 100755
--- a/thumbnail.zsh
+++ b/thumbnail.zsh
@@ -3,7 +3,7 @@
 music=/stuff/music
 thumbs="$HOME/.fvwm/.thumbs"
 
-if [ ! -d "$thumbs" ]; then
+if ! [[ -d "$thumbs" ]]; then
 	mkdir "$thumbs" || exit 1
 fi
 
@@ -11,15 +11,15 @@ size="x128"
 printimg=""
 ismusic=""
 
-while [ "${1#--}" != "$1" -a "$1" != "-" ]; do
-	if [ "$1" = "--small" ]; then
+while [[ "${1#--}" != "$1" && "$1" != "-" ]]; do
+	if   [[ "$1" == "--small" ]]; then
 		size="56"
-	elif [ "$1" = "--size" ]; then
+	elif [[ "$1" == "--size"  ]]; then
 		size="$2"
 		shift
-	elif [ "$1" = "--music" ]; then
+	elif [[ "$1" = "--music"  ]]; then
 		ismusic="yes"
-	elif [ "$1" = "--image" ]; then
+	elif [[ "$1" = "--image"  ]]; then
 		printimg="yes"
 	else
 		echo "unrecognised option: $1" 1>&2
@@ -29,32 +29,32 @@ while [ "${1#--}" != "$1" -a "$1" != "-" ]; do
 done
 [ "$1" = "-" ] && shift
 
-if ! expr match "$size" '^\([0-9]*\(x[0-9]\+\)\?\)$' >/dev/null 2>&1; then
+if ! [[ "$size" =~ '^([0-9]*(x[0-9]+)?)$' ]]; then
 	echo "invalid size specification: $size" 1>&2
 	exit 1
 fi
 
-if [ -z "$1" ]; then
+if [[ -z "$1" ]]; then
 	echo "usage: thumbnail.zsh [--small|--size <spec>] [--image] [--music] path" 1>&2
 	exit 1
 fi
 
-if [ -n "$ismusic" ]; then
-	imgpath="$music/`dirname "${1#$music}"`/cover.jpg"
-	[ ! -f "$imgpath" ] && imgpath="${imgpath%jpg}png"
+if [[ -n "$ismusic" ]]; then
+	imgpath="$music/$(dirname "${1#$music}")/cover.jpg"
+	[[ ! -f "$imgpath" ]] && imgpath="${imgpath%jpg}png"
 else
 	imgpath="$1"
 fi
 
-[ ! -f "$imgpath" ] && exit 0
+[[ ! -f "$imgpath" ]] && exit 0
 
 image="$(readlink -f -- "$imgpath")"
-[ ! -f "$image" ] && exit 0
+[[ ! -f "$image" ]] && exit 0
 
-thumb="$thumbs/`echo -n $image | md5sum - | cut -d ' ' -f 1`_$size.png"
-if [ -f "$thumb" ]; then
-	mtime_s="`stat -c %Y -- "$image"`"
-	mtime_t="`stat -c %Y -- "$thumb"`"
+thumb="$thumbs/$(echo -n $image | md5sum - | cut -d ' ' -f 1)_$size.png"
+if [[ -f "$thumb" ]]; then
+	mtime_s="$(stat -c %Y -- "$image")"
+	mtime_t="$(stat -c %Y -- "$thumb")"
 	if [ "$mtime_s" -gt "$mtime_t" ]; then
 		convert -scale "$size" "$image" "$thumb"
 	fi
-- 
2.43.0