1 files changed, 64 insertions(+), 0 deletions(-)

A modules/shell-utils/bin/img-autoname

@@ 0,0 1,64 @@
+#!/bin/sh
+
+# This script renames images automatically based on their metadata. If two
+# images would have the same name, then it will skip renaming one of them to
+# avoid data loss.
+
+set -e
+set -u
+
+if [ $# -eq 0 ] ; then
+	echo "usage: img-autoname IMG1 IMG2 ..." 1>&2
+	exit 1
+fi
+
+for dep in exiftool rq ; do
+	if [ ! -x "$(which "$dep")" ] ; then
+		echo "FATAL: '$dep' not in PATH" 1>&2
+		exit 1
+	fi
+done
+
+while true ; do
+	if [ $# -eq 0 ] ; then
+		break
+	fi
+
+	f="$1"
+	shift
+
+	if [ ! -e "$f" ] ; then
+		echo "WARNING: skipping '$f' because it does not exist" 1>&2
+		continue
+	fi
+
+	parent="$(dirname "$f")"
+	base="$(basename "$f")"
+
+	created="$(exiftool -j "$f" -d "%Y-%m-%d" | rq -R 'input[0].DateTimeOriginal')"
+	if [ -z "$created" ] ; then
+		created="$(exiftool -j "$f" -d "%Y-%m-%d" | rq -R 'input[0].CreationDate')"
+	fi
+
+	if [ -z "$created" ] ; then
+		created="$(exiftool -j "$f" -d "%Y-%m-%d" | rq -R 'input[0].CreateDate')"
+	fi
+
+	if [ -z "$created" ] ; then
+		created="$(date '+%Y-%m-%d')"
+	fi
+
+
+	seq="$(echo "$base" | egrep -o '[0-9][0-9]+')"
+	ext="$(echo "$base" | tr '.' '\n' | tail -n 1)"
+	new="$parent/$created""_$seq.$ext"
+
+	echo "'$f' -> '$new'" 1>&2
+
+	if [ -e "$new" ] ; then
+		echo "WARNING: skipping file '$f' because it's new name '$new' already exists" 1>&2
+		continue
+	fi
+
+	mv "$f" "$new"
+done