di-dintch.sh

#!/usr/bin/env zsh -f
# Purpose: Dintch – check the integrity of your files
#
# From:	Timothy J. Luoma
# Mail:	luomat at gmail dot com
# Date:	2020-04-15

NAME="$0:t:r"

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

HOMEPAGE='https://eclecticlight.co/dintch/'

INSTALL_TO='/Applications/Dintch.app'

TEMPFILE="${TMPDIR-/tmp}/${NAME}.$$.$RANDOM.plist"

curl -sfLS "https://raw.githubusercontent.com/hoakleyelc/updates/master/eclecticapps.plist" > "$TEMPFILE" || exit 1

LATEST_VERSION=$(/usr/libexec/PlistBuddy -c print "$TEMPFILE" | egrep -B1 -i ' Dintch$' | awk '{print $NF}' | head -1)

URL=$(/usr/libexec/PlistBuddy -c print "$TEMPFILE" | egrep -A1 -i ' Dintch$' | awk '{print $NF}' | tail -1)

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

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

	autoload is-at-least

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

	VERSION_COMPARE="$?"

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

	echo "$NAME: Outdated: $INSTALLED_VERSION vs $LATEST_VERSION"

	FIRST_INSTALL='no'

else

	FIRST_INSTALL='yes'
fi

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

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

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

	pgrep -xq "$INSTALL_TO:t:r" \
	&& LAUNCH='yes' \
	&& osascript -e "tell application \"$INSTALL_TO:t:r\" to quit"

	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
	# note that the '/*/' is to go inside whatever subfolder is created
	# this is something all 'eclecticapps' apps do but most other apps do not
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

[[ "$LAUNCH" = "yes" ]] && open -a "$INSTALL_TO"

exit 0
#EOF




exit 0
#EOF