deploy

#!/bin/bash

# Exit on errors
set -e

# Useful paths and vars
ROOT=$(cd "$(dirname "$0")"; pwd) # Absolute path to root of repository
VERSION=`defaults read $ROOT/Feeds/Feeds-Info.plist CFBundleVersion`
BUILD="/tmp/feeds/Build" # Temporary build products
DIST_NAME="Feeds-$VERSION" # like "Feeds-1.0"
DIST="/tmp/feeds/Distribution/$DIST_NAME" # like "/path/to/feeds/Distribution/Feeds-1.0"
BUCKET="gs://feeds-releases"

# Options
FORCE_UPLOAD=0

# Parse command-line options
# http://stackoverflow.com/a/21128172/66673
while getopts 'f' flag; do
  case "${flag}" in
    f) FORCE_UPLOAD=1 ;;
  esac
done

echo "====================="
echo "Building Feeds App..."
echo "====================="

xcodebuild \
  -project Feeds.xcodeproj \
  CONFIGURATION_BUILD_DIR="$BUILD"

echo "========================"
echo "Zipping Distributable..."
echo "========================"

# Remove any previously-built distributable for this version
rm -rf "$DIST"

# Begin building our distributable
mkdir -p "$DIST"

# Copy the app itself
cp -aR "$BUILD/Feeds.app" "$DIST/Feeds.app"

# must chdir and use relative paths or else we get absolute paths in the zip file
cd "$DIST"

# delete any old zip that's sitting there
rm -f "$DIST_NAME.zip" 

zip -rq --symlinks \
  "$DIST_NAME.zip" "Feeds.app" \
  -x "*.DS_Store"

echo "===================================="
echo "Uploading to Google Cloud Storage..."
echo "===================================="

# upload the zip to cloud storage on the "feedswww" Google Cloud Project
# in the "feeds-releases" bucket, which has been pre-configured with CORS
# so the website can fetch the download URL to the latest version

# first check that we're not overwriting a previously-published version
set +e # temporarily prevent exiting on error
gsutil -q ls "$BUCKET/$DIST_NAME.zip" &> /dev/null
GSUTIL_EXIT_CODE=`echo $?`
set -e

# check the exit code - if zero, that means the ls command succeeded (file exists already) so this SDK
# was already uploaded! So let's bail unless you told us to overwrite the SDK explicitly.
if [[ $GSUTIL_EXIT_CODE -eq 0  ]] && [[ $FORCE_UPLOAD -eq 0 ]]; then
  echo "A version $VERSION of Feeds has already been published. Use the '-f' option to overwrite the existing version."
  exit 1
fi

# OK let's copy the new version. Use "-a public-read" to ensure that these files are
# publicly accessible by both end-users and the website Javascript.
gsutil -m -q cp -a public-read "$DIST/$DIST_NAME.zip" "$BUCKET/$DIST_NAME.zip"

# also upload the appcast
gsutil -m -q cp -R -a public-read "$ROOT/appcast.xml" "$BUCKET/appcast.xml"

# Create a file that contains the latest version (assumed to be the one we're publishing) so that
# the website can figure out what to download.
echo "$VERSION" > "/tmp/LATEST"
gsutil -m -q cp -a public-read "/tmp/LATEST" "$BUCKET/LATEST"

# We want to disable caching on these files so changes are propagated immediately.
gsutil -m -q setmeta -R -h "Cache-Control:no-cache" \
  "$BUCKET/LATEST" \
  "$BUCKET/appcast.xml" \
  "$BUCKET/$DIST_NAME.zip"

echo "====="
echo "Done."
echo "====="