installer

#!/usr/bin/env bash
# curl -sSL https://wpeb-installer.includes.io | bash
WPEB_NOW=$(date +"%Y-%m-%d-%H%M")
WPEB_MAIN="https://wpeb-main.includes.io"
WPEB_TEMP="/tmp/wpeb.$WPEB_NOW"
WPEB_TARGET="/usr/local/bin/wpeb"
start_checks() {
	if [ -f "$WPEB_TARGET" ]; then
		# WPEB found, run update procedure ?
		run_update
	else
		# WPEB not found in the regular location, let's run the install.
		run_install
	fi
}
run_update() {
	# We already know the file exists from the check for old version,
	# let's get the version and just compare.
	# Go ahead with the download.
	WPEB_TEMP_DL=$(curl -sSL "$WPEB_MAIN" -o "$WPEB_TEMP")
	WPEB_DOWN_OK=$?
	if [ "$WPEB_DOWN_OK" -ne 0 ]; then
		# For some reason we couldn't download, let's bail.
		echo ""
		echo " *** For some reason, i couldn't download the latest version of WPEB"
		echo " *** Maybe you want to have a look at the docs and try a manual install ?"
		echo " *** https://niladam.github.io/wpeb  ***"
		echo ""
		run_cleanup
		exit 1
	fi
	WPEB_NEW_VERSION=$(grep WPEB_VER "$WPEB_TEMP" | head -1 | cut -d = -f2 | tr -d '"')
	WPEB_OLD_VERSION=$(grep WPEB_VER "$WPEB_TARGET" | head -1 | cut -d = -f2 | tr -d '"')
	WPEB_GT=$(echo "$WPEB_NEW_VERSION > $WPEB_OLD_VERSION" | bc -q )
	if [ "$WPEB_GT" = 1 ]; then
		# Got newer version, move to target file.
		echo " *** New version found, $WPEB_NEW_VERSION. You have $WPEB_OLD_VERSION. Proceeding with install.."
	  	mv -f "$WPEB_TEMP" "$WPEB_TARGET"
	  	chmod +x "$WPEB_TARGET"
	  	echo ""
	  	echo " *** New version, $WPEB_NEW_VERSION was updated. Enjoy!"
	  	echo ""
	else
		# Now that should be impossible!:)
		echo " *** Apparently, the installed version is newer or current.."
		echo " *** Current: $WPEB_OLD_VERSION // NEW: $WPEB_NEW_VERSION"
		# echo " *** This can happen if the file has been manually modified and/or altered.."
		echo " *** If you think this is a mistake, please open an issue at "
		echo " *** https://github.com/niladam/wpeb/issues *** "
		run_cleanup
		exit 1
	fi
}
run_install() {
	WPEB_TEMP_DL=$(curl -sSL "$WPEB_MAIN" -o "$WPEB_TEMP")
	WPEB_NEW_VERSION=$(grep WPEB_VER "$WPEB_TEMP" | head -1 | cut -d = -f2 | tr -d '"')
	if [ "$WPEB_TEMP_DL" -ne 0 ]; then
		# For some reason we couldn't download, let's bail.
		echo ""
		echo " *** For some reason, i couldn't download the latest version of WPEB"
		echo " *** Maybe you want to have a look at the docs and try a manual install ?"
		echo " *** https://niladam.github.io/wpeb  ***"
		echo ""
		run_cleanup
		exit 1
	else
		echo " *** WPEB not found on the system. Installing $WPEB_NEW_VERSION.."
		mv -f "$WPEB_TEMP" "$WPEB_TARGET"
		chmod +x "$WPEB_TARGET"
		echo ""
		echo " *** WPEB version $WPEB_NEW_VERSION was installed. Enjoy!"
		echo ""
	fi

}
run_cleanup() {
	# Let's clean up after ourselves..
	rm -rf "$WPEB_TEMP"
}

# We have everything, let's proceed.
start_checks