Script that checks that the optimized images are the same as original.

1 files changed, 47 insertions, 0 deletions

diff --git a/bin/check-artwork.sh b/bin/check-artwork.sh
new file mode 100755
index 000000000..a907aab95
--- /dev/null
+++ b/bin/check-artwork.sh
@@ -0,0 +1,47 @@
+#! /bin/sh
+
+# Take 2 directories with artwork (eg. one reference, 2nd the optimized), and
+# check that they do not differ
+
+D1="$1"
+D2="$2"
+
+if test -z "$D1" -o -z "$D2" ; then
+    echo "check-artwork.sh dir1 dir2"
+    exit 1
+fi
+
+function same_dir_content ()
+{
+    SRC="$1"
+    DST="$2"
+    ( cd "$SRC" ; find . -type f ) | while read F1 ; do
+        F2="$DST/$F1"
+        if test ! -f "$F2" ; then
+            echo "Missing file: '$F2' (source is '$SRC/$F1')"
+        fi
+    done
+}
+
+same_dir_content "$D1" "$D2"
+same_dir_content "$D2" "$D1"
+
+# visual comparison using a XPM format
+# [couldn't use the oodocdiff.sh trick - usually there are changes in the
+# alpha channel that ruin the check :-(]
+
+TEMP=`mktemp -d /tmp/check-artwork.XXXXXXXXXX`
+TMP1="$TEMP/1.xpm"
+TMP2="$TEMP/2.xpm"
+( cd "$D1" ; find . -type f ) | while read F ; do
+    convert "$D1/$F" "$TMP1"
+    convert "$D2/$F" "$TMP2"
+    if diff -q "$TMP1" "$TMP2" > /dev/null 2>&1 ; then
+        :
+    else
+        echo "Images differ: '$D1/$F' and '$D2/$F'"
+    fi
+done
+
+rm "$TMP1" "$TMP2"
+rmdir "$TEMP"