johnboxall · December 22, 2014 23:30 · Dec 22, 2014 · Dec 22, 2014
diff --git a/gistfile1.txt → tinypng.sh b/gistfile1.txt → tinypng.sh
diff --git a/gistfile1.txt b/gistfile1.txt
@@ -0,0 +1,37 @@
+# Usage:
+#   ./tinypng.sh <filename> <filename> <filename>
+#
+# Upload the files to shrink and then save them locally under the same name.
+# Only works with JPEG and PNG.
+#
+# Uses the TinyPNG API: https://tinypng.com/developers/reference
+# Inspired by this Gist: https://gist.github.com/s4l1h/553d00b71d4ab14c17d9
+#
+# TODO:
+# * Only allow PNG and JPEG
+# * Confirm the images you want to resize.
+# * Test that images always get smaller.
+# * Don't fail anywhere.
+# * Add to githooks to automatically crush new files.
+#
+# set -x
+set -e
+set -o pipefail
+
+KEY=$TINYPNG_API_KEY
+
+if [ -z $TINYPNG_API_KEY ] ; then
+    echo "Must set \$TINYPNG_API_KEY."
+    exit 1
+fi
+
+# -s = silent, no progress meter.
+# -i = include HTTP headers in the response, useful to grab the Location!
+# -f = fail, return non-zero if the command fails.
+# -o = output file
+# --data-binary = read from file
+for f in $@ ; do
+    url=$(curl -sif --user "api:$KEY" --data-binary @$f https://api.tinypng.com/shrink | grep "Location:" | awk -F ' ' '{print $2}')
+    curl -sf -o "$f" "$url"
+    echo "Wrote $f"
+done