di-cyberduck.sh

#!/usr/bin/env zsh -f
# Purpose: Download and install the latest version of Cyberduck
#
# From:	Timothy J. Luoma
# Mail:	luomat at gmail dot com
# Date:	2016-01-19

NAME="$0:t:r"
INSTALL_TO="/Applications/Cyberduck.app"

HOMEPAGE="https://cyberduck.io"

DOWNLOAD_PAGE="https://cyberduck.io"

SUMMARY="Cyberduck is a libre server and cloud storage browser with support for FTP, SFTP, WebDAV, Amazon S3, OpenStack Swift, Backblaze B2, Microsoft Azure & OneDrive, Google Drive, and Dropbox."

## This is a more complicated case than usual, because Cyberduck
## has THREE feeds:
##	one for _nightly_ releases
##	one for _beta_ releases
##	one for _stable_ releases
##
## Now, currently, as of 2018-08-13, both of the so-called “nightly”
## and the “beta” feeds actually seem to contain the same information
## but, that might change in the future.
##
## So we have to give people the option of being able to set two
## 'PREFERS_BETAS_FILE' files. The question is, how do we prioritize them?
##
## Well, I made the decision that if someone has created a file for
## _both_ the nightly _and_ the betas, I was going to use the betas
##
## But they could still opt for the betas instead of the nightly
## builds, if they prefer.

	## Create _this_ file if you want NIGHTLY builds
PREFERS_BETAS_FILE="$HOME/.config/di/cyberduck-prefer-nightly.txt"

if [[ -e "$PREFERS_BETAS_FILE" ]]
then
 	XML_FEED="https://version.cyberduck.io/nightly/changelog.rss"
	NAME="$NAME (nightly releases)"

else
		## Create _this_ file if you want BETA builds
	PREFERS_BETAS_FILE="$HOME/.config/di/cyberduck-prefer-betas.txt"

	if [[ -e "$PREFERS_BETAS_FILE" ]]
	then
		NAME="$NAME (beta releases)"
		XML_FEED="https://version.cyberduck.io/beta/changelog.rss"
	else
		XML_FEED="https://version.cyberduck.io/changelog.rss"
	fi
fi

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

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

INFO=($(curl -sfL "$XML_FEED" \
	| tr ' ' '\012' \
	| egrep '^(url|sparkle:shortVersionString|sparkle:version)=' \
	| sort \
	| head -3 \
	| awk -F'"' '//{print $2}'))

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_VERSION" = "" -o "$LATEST_BUILD" = "" -o "$URL" = "" ]
then
	echo "$NAME: Error: bad data received:\nINFO: $INFO\nLATEST_VERSION: $LATEST_VERSION\nLATEST_BUILD: $LATEST_BUILD\nURL: $URL"
	exit 1
fi

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

	INSTALLED_VERSION=$(defaults read "${INSTALL_TO}/Contents/Info" CFBundleShortVersionString)

	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 "	See <https://apps.apple.com/us/app/cyberduck/id409222199?mt=12> or"
		echo "	<macappstore://apps.apple.com/us/app/cyberduck/id409222199>"
		echo "	Please use the App Store app to update it: <macappstore://showUpdatesPage?scan=true>"
		exit 0
	fi

else

	FIRST_INSTALL='yes'
fi

FILENAME="$HOME/Downloads/$INSTALL_TO:t:r-${LATEST_VERSION}_${LATEST_BUILD}.zip"

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

	( echo "$NAME: Release Notes for $INSTALL_TO:t:r ($LATEST_VERSION/$LATEST_BUILD):" ;
		(echo '<ul>';
			curl -sfL "${RELEASE_NOTES_URL}" | sed '1,/<ul>/d; /<\/ul>/,$d' ;
			echo '</ul>' ) \
		| lynx -dump -nomargins -width='10000' -assume_charset=UTF-8 -pseudo_inlines -stdin ;
		echo "\nSource: <$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

if [[ -e "$INSTALL_TO" ]]
then
	pgrep -qx "$INSTALL_TO:t:r" && LAUNCH='yes' && killall "$INSTALL_TO:t:r"
	mv -f "$INSTALL_TO" "$HOME/.Trash/$INSTALL_TO:t:r.$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

exit 0
EOF