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gaia/tools/svg_recompress.sh

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+#!/bin/sh
+
+###############################################################################
+# Compress SVG files using svgo (https://github.com/svg/svgo)
+#
+# The following svgo plugins are disabled:
+# * convertPathData
+#     Though the resulting files are OK in any browsers, they're rendered in a
+#     weird way on Ubuntu files explorer.
+# * mergePaths
+#     Can result on wrong odd/even filling if some paths are overlapping.
+
+###############################################################################
+# Option variables
+
+opt_help=no
+opt_paths=""
+
+###############################################################################
+# Print the help message
+
+print_help() {
+    printf "Usage: `basename $0` [OPTION...] [PATH...]
+Recompresses SVG files using 'svgo' tools.
+
+Help options:
+  -h, --help            Show this help message
+"
+}
+
+suggest_help() {
+    printf "Try \``basename $0` --help' for more information\n"
+}
+
+###############################################################################
+# Parse the program arguments
+
+parse_args() {
+    # Set the options variables depending on the passed arguments
+    while [ $# -gt 0 ]; do
+       if [ `expr "$1" : "^-"` -eq 1 ]; then
+           if [ $1 = "-h" ] || [ $1 = "--help" ]; then
+                opt_help=yes
+                shift 1
+           else
+                printf "error: Unknown option $1\n"
+                exit 1
+           fi
+       else
+            # No more arguments, the following parameters will be paths
+            break
+       fi
+    done
+
+    if [ $# -eq 0 ] && [ $opt_help != yes ]; then
+        printf "error: no files specified\n"
+        suggest_help
+        exit 1
+    fi
+
+    # Gather all the paths
+    while [ $# -gt 0 ]; do
+        opt_paths="$opt_paths$1\n"
+        shift
+    done
+}
+
+###############################################################################
+# Check for program
+
+check_program() {
+    which svgo 1>/dev/null 2>/dev/null
+
+    if [ $? -ne 0 ]; then
+        printf "error: svgo not found\n"
+        exit 1;
+    fi
+}
+
+###############################################################################
+# Main script
+
+parse_args "$@"
+check_program
+
+if [ $opt_help = yes ] || [ $# -eq 0 ]; then
+    print_help
+    exit 0
+fi
+
+# Process all the specified paths
+while [ $# -gt 0 ]; do
+    svgo --disable=convertPathData --disable=mergePaths --multipass --folder="$1"
+    shift
+done