di-coda.sh

#!/usr/bin/env zsh -f
# Purpose: download and install Coda (2.5)
#
# From:	Tj Luo.ma
# Mail:	luomat at gmail dot com
# Web: 	http://RhymesWithDiploma.com
# Date:	2015-02-02

NAME="$0:t:r"

INSTALL_TO='/Applications/Coda 2.app'

HOMEPAGE="https://www.panic.com/coda/"

DOWNLOAD_PAGE="https://www.panic.com/coda/"

SUMMARY="You code for the web. You demand a fast, clean, and powerful text editor. Pixel-perfect preview. A built-in way to open and manage your local and remote files. And maybe a dash of SSH. Say hello, Coda."

if [[ -e "$HOME/.path" ]]
then
	source "$HOME/.path"
fi

OS_VER=`SYSTEM_VERSION_COMPAT=1 sw_vers -productVersion`

INSTALLED_VERSION=`defaults read "$INSTALL_TO/Contents/Info" CFBundleShortVersionString 2>/dev/null || echo '0'`

XML_FEED="https://www.panic.com/updates/update.php?osVersion=${OS_VER}&lang=en&appName=Coda%202&appVersion=$INSTALLED_VERSION"

RELEASE_NOTES_URL=$(curl -sfL "$XML_FEED" \
	| egrep '<sparkle:releaseNotesLink>.*</sparkle:releaseNotesLink>' \
	| head -1 \
	| sed 's#.*<sparkle:releaseNotesLink>##g ; s#</sparkle:releaseNotesLink>##g ; s#\?.*##g')

INFO=($(curl -sfL "$XML_FEED" \
		| egrep 'sparkle:version=|sparkle:shortVersionString=|url=' \
		| head -3 \
		| sort \
		| sed 's# #%20#g' \
		| awk -F'"' '/^/{print $2}'))

	# "Sparkle" will always come before "url" because of "sort"
LATEST_VERSION="$INFO[1]"
LATEST_BUILD="$INFO[2]"
URL="$INFO[3]"

	# If any of these are blank, we should not continue
if [ "$INFO" = "" -o "$LATEST_BUILD" = "" -o "$URL" = "" -o "$LATEST_VERSION" = "" ]
then
	echo "$NAME: Error: bad data received:
	INFO: $INFO
	LATEST_VERSION: $LATEST_VERSION
	LATEST_BUILD: $LATEST_BUILD
	URL: $URL
	"

	exit 1
fi

if [[ -e "$INSTALL_TO" ]]
then

	INSTALLED_BUILD=$(defaults read "${INSTALL_TO}/Contents/Info" CFBundleVersion)

	autoload is-at-least

	is-at-least "$LATEST_VERSION" "$INSTALLED_VERSION"

	VERSION_COMPARE="$?"

	is-at-least "$LATEST_BUILD" "$INSTALLED_BUILD"

	BUILD_COMPARE="$?"

	if [ "$VERSION_COMPARE" = "0" -a "$BUILD_COMPARE" = "0" ]
	then
		echo "$NAME: Up-To-Date ($INSTALLED_VERSION/$INSTALLED_BUILD)"
		exit 0
	fi

	echo "$NAME: Outdated: $INSTALLED_VERSION/$INSTALLED_BUILD vs $LATEST_VERSION/$LATEST_BUILD"

	FIRST_INSTALL='no'

	if [[ -e "$INSTALL_TO/Contents/_MASReceipt/receipt" ]]
	then
		echo "$NAME: $INSTALL_TO was installed from the Mac App Store and cannot be updated by this script."
		echo "	Please use the App Store app to update it: <macappstore://showUpdatesPage?scan=true>"
		exit 0
	fi

else

	FIRST_INSTALL='yes'
fi

FILENAME="$HOME/Downloads/Coda-${LATEST_VERSION}_${LATEST_BUILD}.zip"

if (( $+commands[lynx] ))
then

	(echo "$NAME: Release Notes for $INSTALL_TO:t:r version $LATEST_VERSION/$LATEST_BUILD:\n" ;
		lynx -dump -nomargins -width=10000 -assume_charset=UTF-8 -pseudo_inlines "$RELEASE_NOTES_URL" \
		| sed "/You will need to manually update from our website. We're sorry for the inconvenience./,\$d" ;
		echo "Source: <$RELEASE_NOTES_URL>" ) \
	| tee "$FILENAME:r.txt"

fi

echo "$NAME: Downloading '$URL' to '$FILENAME':"

curl --continue-at - --fail --location --output "$FILENAME" "$URL"

EXIT="$?"

	## exit 22 means 'the file was already fully downloaded'
[ "$EXIT" != "0" -a "$EXIT" != "22" ] && echo "$NAME: Download of $URL failed (EXIT = $EXIT)" && exit 0

[[ ! -e "$FILENAME" ]] && echo "$NAME: $FILENAME does not exist." && exit 0

[[ ! -s "$FILENAME" ]] && echo "$NAME: $FILENAME is zero bytes." && rm -f "$FILENAME" && exit 0

if [ -e "$INSTALL_TO" ]
then
		# Quit app, if running
	pgrep -xq "Coda 2" \
	&& LAUNCH='yes' \
	&& osascript -e 'tell application "Coda 2" to quit'

		# move installed version to trash
	mv -vf "$INSTALL_TO" "$HOME/.Trash/Coda 2.$INSTALLED_VERSION.app"
fi

echo "$NAME: Installing $FILENAME to $INSTALL_TO:h/"

UNZIP_TO=$(mktemp -d "${TMPDIR-/tmp/}${NAME}-XXXXXXXX")

echo "$NAME: Unzipping '$FILENAME' to '$UNZIP_TO':"

ditto -xk --noqtn "$FILENAME" "$UNZIP_TO"

EXIT="$?"

if [[ "$EXIT" == "0" ]]
then
	echo "$NAME: Unzip successful"
else
		# failed
	echo "$NAME failed (ditto -xkv '$FILENAME' '$UNZIP_TO')"

	exit 1
fi

if [[ -e "$INSTALL_TO" ]]
then
	echo "$NAME: Moving existing (old) \"$INSTALL_TO\" to \"$HOME/.Trash/\"."

	mv -vf "$INSTALL_TO" "$HOME/.Trash/$INSTALL_TO:t:r.$INSTALLED_VERSION.app"

	EXIT="$?"

	if [[ "$EXIT" != "0" ]]
	then

		echo "$NAME: failed to move existing $INSTALL_TO to $HOME/.Trash/"

		exit 1
	fi
fi

echo "$NAME: Moving new version of '$INSTALL_TO:t' (from '$UNZIP_TO') to '$INSTALL_TO'."

	# Move the file out of the folder
mv -vn "$UNZIP_TO/$INSTALL_TO:t" "$INSTALL_TO"

EXIT="$?"

if [[ "$EXIT" = "0" ]]
then

	echo "$NAME: Successfully installed '$UNZIP_TO/$INSTALL_TO:t' to '$INSTALL_TO'."

else
	echo "$NAME: Failed to move '$UNZIP_TO/$INSTALL_TO:t' to '$INSTALL_TO'."

	exit 1
fi

# defaults write com.panic.Coda2 SerialNumber XXX

exit 0
#
#EOF