make_zips_and_appcast.sh

#!/bin/sh

# If Snk.app is not found on the Desktop, quit.
APP_PATH="$HOME/Desktop/Snk.app"
if [ ! -d "$APP_PATH" ]
then
    echo "\n"
    echo "  + \033[0;31mNOT FOUND:\033[0m $APP_PATH"
    echo "  + Export notarized Snk.app to Desktop."
    echo "\n"
    exit 1
fi

# Get the bundle version from the plist.
PLIST_FILE="$APP_PATH/Contents/Info.plist"
VERSION=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" $PLIST_FILE)
SHORT_VERSION_STRING=$(/usr/libexec/PlistBuddy -c "Print CFBundleShortVersionString" $PLIST_FILE)

# Set up file names and paths.
ZIP_NAME="Snk-$SHORT_VERSION_STRING.zip"
ZIP_NAME=${ZIP_NAME// /-}
DEST_DIR="$HOME/Desktop/Snk-$SHORT_VERSION_STRING"
XML_PATH="$DEST_DIR/snk.xml"
ZIP_PATH1="$DEST_DIR/$ZIP_NAME"
ZIP_PATH2="$DEST_DIR/Snk.zip"

# Run some diagnostics so we can see all is ok."
echo ""
( set -x; spctl -vvv --assess --type exec $APP_PATH )
echo ""
( set -x; codesign -vvv --deep --strict $APP_PATH )
echo ""
( set -x; codesign -dvv $APP_PATH )

echo ""
echo "Making zips and appcast for \033[0;32m$SHORT_VERSION_STRING ($VERSION)\033[0m..."

# Make output dir (if necessary) and clear its contents.
rm -frd "$DEST_DIR"
mkdir -p "$DEST_DIR"

# Compress Snk.app and make a copy without version suffix.
ditto -c -k --rsrc --keepParent "$APP_PATH" "$ZIP_PATH1"
cp "$ZIP_PATH1" "$ZIP_PATH2"

# Get the date and zip file size for the Sparkle XML.
DATE=$(TZ=GMT date)
FILESIZE=$(stat -f "%z" "$ZIP_PATH1")

# Make the Sparkle appcast XML file.
cat > "$XML_PATH" <<EOF
<?xml version="1.0" encoding="utf-8"?>
<rss
  version="2.0"
  xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle"
  xmlns:dc="http://purl.org/dc/elements/1.1/" >
<channel>
<title>Snk Changelog</title>
<link>https://s3.amazonaws.com/mowglii/snk.xml</link>
<description>Most recent changes</description>
<language>en</language>
<item>
<title>Version $SHORT_VERSION_STRING</title>
<sparkle:minimumSystemVersion>10.16</sparkle:minimumSystemVersion>
<sparkle:releaseNotesLink>https://mowglii.com/snk/changelog.html</sparkle:releaseNotesLink>
<pubDate>$DATE +0000</pubDate>
<enclosure
  url="https://s3.amazonaws.com/mowglii/$ZIP_NAME"
  sparkle:version="$VERSION"
  sparkle:shortVersionString="$SHORT_VERSION_STRING"
  length="$FILESIZE"
  type="application/octet-stream" />
</item>
</channel>
</rss>
EOF

echo "Done!"
echo ""

open -R "$XML_PATH"