Initial commit

.rezip/rezip.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+#usage rezip.sh [-#] [filename]
+
+unset compression
+
+while [ $# != 0 ] ; do
+    case $1 in
+    -*)
+       compression="$1"
+       ;;
+    *)
+       inputfile="$1"
+    esac
+    shift
+done
+
+if [ -z "$compression" ]; then compression=-0; fi
+
+if [ -z "$inputfile" ]; then 
+    zipfile=$(mktemp -t rezip.zip.XXXXXXXX)
+    cat >"$zipfile"
+else
+    zipfile=$(realpath "$inputfile")
+fi
+
+tmpdir=$(mktemp -d -t rezip.tmd.XXXXXXXX)
+
+files=$(unzip -Z -1 "$zipfile")
+unzip -qq -d "$tmpdir" "$zipfile"
+cd "$tmpdir"
+tmpfile=$(mktemp -u -t rezip.tmp.XXXXXXXX)
+unzip -Z -1 "$curdir/$zipfile"| zip -qq -@ "$compression" "$tmpfile"
+
+if [ -z "$inputfile" ] ; then
+    rm "$zipfile"
+    cat "$tmpfile"
+    rm "$tmpfile"
+else
+    mv "$tmpfile" "$zipfile"
+fi
+
+rm -rf "$tmpdir"
+