fb: make POSIX compatible

Contributed-by: Moritz Wilhelmy
Signed-off-by: Florian Pritz <bluewind@xssn.at>

1 files changed, 30 insertions, 25 deletions

diff --git a/fb b/fb
index f98ee07..aca94c8 100755
--- a/fb
+++ b/fb
@@ -1,6 +1,7 @@
-#!/bin/bash
+#!/bin/sh
 #----------------------------------------------------
 # Author:       Florian "Bluewind" Pritz <flo@xssn.at>
+# Contributor:  Moritz Wilhelmy
 #
 # Licensed under WTFPL v2
 #   (see COPYING for full license text)
@@ -10,24 +11,24 @@
 # Optional: xclip
 #----------------------------------------------------
 
-VERSION="0.6.3.2"
+VERSION="0.6.4"
 
-DELETE=0
+DELETE=
 EXTENSION=""
-GET=0
+GET=
 PASTEBIN="http://paste.xinu.at"
 USERAGENT="fb-client/$VERSION"
 CLIPBOARD=""
 
 do_upload() {
   local EXTRA=""
-  if [[ -n $EXTENSION ]]; then
+  if [ "$EXTENSION" ]; then
     EXTRA="-F extension=$EXTENSION"
   fi
-  TMPFILE=$(mktemp "$TMPDIR/data.XXXXXX")
+  TMPFILE=`mktemp "$TMPDIR/data.XXXXXX"`
   curl -# -n -L -A $USERAGENT $EXTRA -F "file=@$1" "$PASTEBIN/file/do_upload" > $TMPFILE
   sed '$d' $TMPFILE >&2
-  URL=$(tail -1 $TMPFILE)
+  URL=`tail -1 $TMPFILE`
   echo $URL
   CLIPBOARD="$CLIPBOARD $URL"
 }
@@ -40,7 +41,7 @@ read_stdin() {
 }
 
 help() {
-  cat <<EOF
+  cat <<!
 fb-client version $VERSION
 usage: [cat |] `basename "$0"` [switches] [file(s)|ID(s)]
 
@@ -52,36 +53,40 @@ usage: [cat |] `basename "$0"` [switches] [file(s)|ID(s)]
     -d             delete the IDs
     -g             download the IDs and output on stdout (use with care!)
     -h             this help
-EOF
-  exit 0
+!
 }
 
-while getopts ":e:gdh" OPTION; do
+if ! set -- `getopt ":e:gdh" "$@"`; then
+  help
+  exit 1
+fi
+
+for OPTION; do
   case $OPTION in
-    e) EXTENSION="$OPTARG";;
-    g) GET=1;;
-    d) DELETE=1;;
-    h) help;;
-    \?) echo "unknown option \"-$OPTARG\"" >&2; exit 1;;
-    :) echo "Option \"-$OPTARG\" needs an argument" >&2; exit 1;;
+    -e) shift; EXTENSION="$1";;
+    -g) GET=1;;
+    -d) DELETE=1;;
+    -h) help; exit 0;;
+    --) break;;
   esac
+  shift
 done
 
-shift $((OPTIND - 1))
+shift
 
-TMPDIR="$(mktemp -d "/tmp/fb.XXXXXX")"
+TMPDIR="`mktemp -d "/tmp/fb.XXXXXX"`"
 trap "rm -rf '${TMPDIR}'" EXIT TERM
 
-if (($# == 0)); then
+if [ $# -eq 0 ]; then
   read_stdin "$TMPDIR/stdin"
   do_upload "$TMPDIR/stdin"
 else
-  for i in "$@"; do
-    if [[ $DELETE == 1 ]]; then
+  for i; do
+    if [ "$DELETE" ]; then
       curl -n -L -A $USERAGENT "$PASTEBIN/file/delete/$i"
-    elif [[ $GET == 1 ]]; then
+    elif [ "$GET" ]; then
       curl -s -o - -A $USERAGENT "$PASTEBIN/$i"
-    elif grep -qE "^(f|ht)tp(s)?://.+" <<< "$i"; then
+    elif echo "$i" | grep -qE "^(f|ht)tp(s)?://.+"; then
       cd $TMPDIR
       curl -# -A $USERAGENT -O "$i"
       for f in *; do
@@ -93,4 +98,4 @@ else
   done
 fi
 
-echo -n $CLIPBOARD | nohup &> /dev/null xclip || true
+[ "`which xclip 2>/dev/null`" ] && echo -n $CLIPBOARD | nohup xclip >/dev/null 2>&1