converts single binary or script to Mac OS X .app format

bin2app.sh

#!/bin/bash

mkdir -p $2.app/Contents/{MacOS,Resources}
cp $1 $2.app/Contents/MacOS/$2

cat > $2.app/Contents/Info.plist << EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleExecutable</key>
    <string>$2</string>
    <key>CFBundleGetInfoString</key>
    <string>$2</string>
    <key>CFBundleIconFile</key>
    <string>$2</string>
    <key>CFBundleIdentifier</key>
    <string>$2</string>
    <key>CFBundleName</key>
    <string>$2</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
</dict>
</plist>
EOF