Added script that batch converts SVG and/or PNG files to PlantUml sprites. It was used to generate the Material Sprites from https://github.com/plantuml/plantuml-stdlib/pull/1

tools/create_sprites.sh

@@ -0,0 +1,175 @@
+#!/usr/bin/env bash
+
+# 
+# (C) Copyright 2017, Anthony Gaudino
+# 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# 
+
+
+#
+# Batch creates sprite files for PlantUml
+#
+# Given a directory can convert all SVG files to PNG, then on the same directory,
+# convert all PNG files to PlantUml sprite files.
+# To convert SVGs the -s flag must be set.
+#
+# The generated sprites files formats are based on the ones introduced in
+# PlantUml 1.2017.19.
+#
+# This script assumes InkScape and PlantUml are in PATH.
+#
+
+
+# Help usage message
+usage="Batch creates sprite files for PlantUml.
+
+$(basename "$0") [options] prefix
+
+options:
+    -p  directory path to process  Default: ./
+    -w  width  of PNG from SVG     Default: 48
+    -h  height of PNG from SVG     Default: 48
+    -g  sprite graylevel           Default: 16
+    -s  if set processes SVGs
+    
+    prefix: a prefix that is added to the sprite name"
+
+
+
+# Default arguments values
+        dir="./"  # Directory path to process     Default: ./
+      width=48    # Width  of PNG to generate     Default: 48
+     height=48    # Height of PNG to generate     Default: 48
+  graylevel=16    # Number of grayscale colors    Default: 16
+ processsvg=0     # 1 if SVGs should be processed Default: 0
+
+     prefix=""    # Prefix for sprites names, avoids having
+prefixupper=""    # two sprites with same name on STDLIB
+
+
+
+########################################
+#
+#    Main function
+#
+########################################
+main () {
+    # Get arguments
+    while getopts p:w:h:g:s option
+    do
+        case "$option" in
+            p)        dir="$OPTARG";;
+            w)      width="$OPTARG";;
+            h)     height="$OPTARG";;
+            g)  graylevel="$OPTARG";;
+            s) processsvg=1;;
+            :) echo "$usage"
+               exit 1
+               ;;
+           \?) echo "$usage"
+               exit 1
+               ;;
+        esac
+    done
+
+    # Get mandatory argument
+    shift $(($OPTIND-1))
+    prefix=$(     echo $1 | tr '[:upper:]' '[:lower:]')
+    prefixupper=$(echo $1 | tr '[:lower:]' '[:upper:]')
+
+    # Check mandatory argument
+    if [ -z "$prefix" ]
+    then
+        echo "Please specify a prefix!"
+        echo "$usage"
+        exit 1
+    fi
+
+
+
+    # Change dir to where images are
+    if [ ! -d "${dir}" ]
+    then
+        echo "Please specify a valid directory"
+        echo "$usage"
+        exit 1
+    fi
+    
+    cd "$dir"
+
+
+
+    # Processes dir
+    if [ "$processsvg" -eq 1 ]
+    then
+        process_svg
+    fi
+    
+    process_png
+}
+
+
+########################################
+#
+#    Convert all SVG files in directory to PNG
+#
+########################################
+process_svg () {
+    for i in *.svg
+    do
+        [ -f "$i" ] || continue
+
+        inkscape -z --export-png=`echo $i | sed -e 's/svg$/png/' | sed 's/[^a-zA-Z0-9._]/_/g'` -w $width -h $height -b white $i
+    done
+}
+
+
+
+########################################
+#
+#    Generate PlantUml sprite
+#
+########################################
+process_png () {
+    for i in *.png
+    do
+        [ -f "$i" ] || continue
+
+               filename=$(echo $i | sed -e 's/.png$//')                 # Filename without extension
+          filenameupper=$(echo $filename | tr '[:lower:]' '[:upper:]')  # Filename without extension in uppercase
+             spritename="${prefix}_$filename"                           # Sprite name is composed by prefix_filename
+        spritenameupper="${prefixupper}_$filenameupper"                 # Sprite name in uppercase
+           spritestereo="$prefixupper $filenameupper"                   # Sprite stereotype is uppercase prefix followed by uppercase filename
+           stereowhites=$(echo $spritestereo | sed -e 's/./ /g')        # This is just whitespace to make output nicer
+
+        #echo "@startuml" >> $filename.puml
+
+        echo -e "$(plantuml -encodesprite $graylevel $i | sed '1!b;s/\$/$'${prefix}_'/')\n" >> $filename.puml
+
+        echo "!define $spritenameupper(_color)                                 SPRITE_PUT(          $stereowhites          $spritename, _color)"                 >> $filename.puml
+        echo "!define $spritenameupper(_color, _scale)                         SPRITE_PUT(          $stereowhites          $spritename, _color, _scale)"         >> $filename.puml
+
+        echo "!define $spritenameupper(_color, _scale, _alias)                 SPRITE_ENT(  _alias, $spritestereo,         $spritename, _color, _scale)"         >> $filename.puml
+        echo "!define $spritenameupper(_color, _scale, _alias, _shape)         SPRITE_ENT(  _alias, $spritestereo,         $spritename, _color, _scale, _shape)" >> $filename.puml
+        echo "!define $spritenameupper(_color, _scale, _alias, _shape, _label) SPRITE_ENT_L(_alias, $spritestereo, _label, $spritename, _color, _scale, _shape)" >> $filename.puml
+        
+        echo "skinparam folderBackgroundColor<<$prefixupper $filenameupper>> White"                                                                              >> $filename.puml
+        
+        #echo "@enduml" >> $filename.puml
+    done
+}
+
+
+main "$@"