added ouput, fixed bugs

cdscript.sh

@@ -22,29 +22,31 @@
 
 
 # general info 
-EXT="jpg" # DO NOT CHANGE THIS TO PNG
+# EXT="jpg" # DO NOT CHANGE THIS TO PNG
-TMP="/tmp"
+# TMP="/tmp"
-NAME=work."$EXT" 
+# NAME=work."$EXT" 
-COVER="meow"
+# rm -f "$OUTPUT"
-rm -f "$TMP"/"$NAME"
 
 
 # message that gets printed if theres missing or unexistant arguments
-USAGE="Usage: $0 -p <paper> -c <cover> [OPTIONS] [OUTPUT]\nTry '$0 -h' for more information" 
+USAGE="Usage: $0 [OPTIONS] [OUTPUT]\nTry '$0 -h' for more information" 
 
 
 # help message
-HELP="Script to create printable CD jewel case inserts. 
+HELP="Script to create printable CD jewel case inserts 
 Options:
 
  flags                                           extra options
  -------------------------------------------------------------
  -h: shows this message and exits                         none
- -p: sets paper format. (necessary)                  a4|letter
+ -p: sets paper format  (necessary)                  a4|letter
- -c: sets the album cover path. (necessary)             <path>
+ -c: sets the album cover path (necessary)              <path>
- -b: sets the back info. (necessary)                  no|image
+ -b: sets the back info (necessary)                   no|image
- -i: sets the back image (nec. if b = image)            <path>
+ -i: sets the back image (nec. is b = image)            <path>
- -m: sets a border around everything,                width(px)
+ -m: sets a border around everything                 width(px)
+ -o: sets output file (necessary)                       <path>
+
+!! DO NOT USE PNG !!
 "
 
 ###########################################
@@ -52,7 +54,7 @@ Options:
 ###########################################
 
 # getops argument handling
-while getopts "hp:c:b:i:m:" o; do
+while getopts "hp:c:b:i:m:o:" o; do
     case "${o}" in
         h)
          echo -e "$HELP"
@@ -89,7 +91,7 @@ while getopts "hp:c:b:i:m:" o; do
 
         i)
         if [[ "$BACKTYPE" = "image" ]]; then
-          BACKIMG=$OPTARG
+          BACKIMG="$OPTARG"
          else
           echo "Invalid back type. Run '$0 -h' for info."
 	      exit 1
@@ -107,6 +109,15 @@ while getopts "hp:c:b:i:m:" o; do
          BORDER_WIDTH="$OPTARG"
         ;;
 
+        o)
+         if [ -f "$OPTARG" ]; then
+          echo -e "Error: file already exists."
+          exit 1
+         else
+          OUTPUT="$OPTARG"
+         fi
+        ;;
+
         *)
          echo -e "$USAGE"
          exit
@@ -115,10 +126,19 @@ while getopts "hp:c:b:i:m:" o; do
 done
 
 
-# print the usage message if there aren't enough arguments
+# check if something is missing
-if [ $# -lt 6 ]; then
+if [ -z "$PAPER" ] || [ -z "$COVER" ] || [ -z "$BACKTYPE" ] || [ -z "$OUTPUT" ]; then
+    echo -e "Error: missing options"
     echo -e "$USAGE"
-    exit
+    exit 1
+fi
+
+
+# check if i is missing
+if [[ "$BACKTYPE" == "image" && -z "$BACKIMG" ]]; then
+    echo -e "Error: missing options"
+    echo -e "$USAGE"
+    exit 1
 fi
 
 
@@ -158,32 +178,26 @@ else
 fi
 
 
-# failsafe
-# if [ "$COVER" = "meow" ]; 
-#     echo -e "$USAGE"
-# fi
-
-
 # create a blank file with the specified paper type
-magick -colorspace sRGB -type TrueColor -depth 8 -size $SIZE canvas:white "$TMP"/"$NAME" > /dev/null
+magick -colorspace sRGB -type TrueColor -depth 8 -size $SIZE canvas:white "$OUTPUT" > /dev/null
 
 
 # draws border (rectangle)
 if [ "$BORDER" = "TRUE" ]; then
 INSET=$((BORDER_WIDTH / 2))
-magick "$TMP/$NAME" \( -size $((CO_PX + 2 * BORDER_WIDTH))x$((CO_PX * 2 + 2 * BORDER_WIDTH)) xc:none -colorspace sRGB -type TrueColor -depth 8 -fill none -stroke black -strokewidth $BORDER_WIDTH -draw "rectangle $INSET,$INSET $((CO_PX + BORDER_WIDTH - 1)),$((CO_PX * 2 + BORDER_WIDTH - 1))" \) -gravity center -composite "$TMP/$NAME"
+magick ""$OUTPUT"" \( -size $((CO_PX + 2 * BORDER_WIDTH))x$((CO_PX * 2 + 2 * BORDER_WIDTH)) xc:none -colorspace sRGB -type TrueColor -depth 8 -fill none -stroke black -strokewidth $BORDER_WIDTH -draw "rectangle $INSET,$INSET $((CO_PX + BORDER_WIDTH - 1)),$((CO_PX * 2 + BORDER_WIDTH - 1))" \) -gravity center -composite ""$OUTPUT""
 fi
 
 
 # add the cover art set to the right size, rotated left by 90d and shifted up by (cover art size) / 2
 # TODO: change rotation to a variable to allow different folding points via argument
 # TODO: make command multi-line for readibility
-magick -colorspace sRGB -type TrueColor -depth 8 "$TMP"/"$NAME" \( "$COVER" -resize ${CO_PX}x${CO_PX} -rotate 270 \) -gravity center -geometry +0-$((CO_PX/2)) -composite "$TMP"/"$NAME" > /dev/null
+magick -colorspace sRGB -type TrueColor -depth 8 "$OUTPUT" \( "$COVER" -resize ${CO_PX}x${CO_PX} -rotate 270 \) -gravity center -geometry +0-$((CO_PX/2)) -composite "$OUTPUT" > /dev/null
 
 
 # adds back
 if [ "$BACKTYPE" = "image" ]; then
-magick -colorspace sRGB -type TrueColor -depth 8 "$TMP"/"$NAME" \( "$BACKIMG" -resize ${CO_PX}x${CO_PX} -rotate 270 \) -gravity center -geometry +0+$((CO_PX/2)) -composite "$TMP"/"$NAME" > /dev/null
+magick -colorspace sRGB -type TrueColor -depth 8 "$OUTPUT" \( "$BACKIMG" -resize ${CO_PX}x${CO_PX} -rotate 270 \) -gravity center -geometry +0+$((CO_PX/2)) -composite "$OUTPUT" > /dev/null
 else
-:
+magick -colorspace sRGB -type TrueColor -depth 8 "$OUTPUT" \( -size ${CO_PX}x${CO_PX} xc:'#FFFFFF' \) -gravity center -geometry +0+$((CO_PX/2)) -composite "$OUTPUT" > /dev/null
 fi