Add epub exctraction script

arch-config/scripts/pieces/manga-extract-epub.sh

@@ -1,8 +1,32 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
+if [ $# -ne 1 ]; then
+    echo "Please use this script with a \"PATH\" to a folder containing Manga chapters"
+    $(exit 1); echo "$?"
+fi
+
+dir="$1"
+parentdir="$(dirname "$dir")"
+filename="$(basename "$dir")"
+# remove .epub to get output folder name
+outdir="${filename%.*}"
+
+cd "$parentdir"
+
+#echo $parentdir
+#echo $filename
+#echo $outdir
+
 # 1. extract .epub
+unzip "$dir" -d "$outdir"
+
 # 2. images under "(folder name)/OEBPS/image"
-# 3. rename images to "pageXXX.(ext)"
-# 4. move to "(folder name)"
-# 5. delete folders "META-INF", "OEBPS" and file "mimetype"
+mv "$outdir/OEBPS/image/"* "$outdir/"
+
+# 3. delete folders "META-INF", "OEBPS" and file "mimetype"
+rm -r "$outdir/"{META-INF,OEBPS,mimetype}
+
+# 4. rename images to "pageXXX.(ext)"
+cd "$outdir"
+ls | cat -n | while read n f; do mv "$f" `printf "page%03d.jpg" $n`; done