Add script to verify SickChill version and updates

github/check.jellyfin.update

@@ -35,12 +35,12 @@ jellyfin_repo_url="https://github.com/jellyfin/jellyfin"
 usage() {                                                       # {{{
 
 	cat <<- EOF
-usage: $PROGNAME [-d|-f|-h|-u|]
+usage: $PROGNAME [-d|-f|-h] --url http://jellyfin.domain.tld:port/System/Info/Public
 Compare current version of an installed Jellyfin site and the last available.
 
 EXAMPLE :
     - Compare the current version installed on http://jellyfin.domain.tld:port
-        check.jellyfin.update http://jellyfin.domain.tld:port/System/Info/Public
+        check.jellyfin.update --url http://jellyfin.domain.tld:port/System/Info/Public
 
 OPTIONS :
     -f,--file
@@ -83,11 +83,11 @@ error_message() {                                               # {{{
 # }}}
 define_vars() {                                                 # {{{
 
-	## If reprepro_dir wasn't defined (argument,...) {{{
+	## If jellyfin_url wasn't defined (argument,...) {{{
 	if [ -z "${jellyfin_url}" ]; then
 		### Display help message and exit
 		usage
-		error_message "Please set the Jellyfin's URL with -u|--url option."
+		error_message "Please set the Jellyfin's URL with -u|--url option." 3
 	fi
 	## }}}
 
@@ -142,7 +142,7 @@ if [ ! "${NBARGS}" -eq "0" ]; then
 	if ! printf -- '%s' "${1}" | grep -q -E -- "^-+";
 	then
 		usage
-		error_message "Unknown argument (${1}), check the help." 2
+		error_message "Unknown argument (${1}), check the help." 1
 	fi
 
 	manage_arg="0"
@@ -195,7 +195,7 @@ ${RED}${1}${COLOR_DEBUG} option managed."
 	debug_message "Arguments management − \
 ${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
 else
-	error_message "Please at least give an URL with -u|--url option. See --help for more informations."
+	error_message "Please at least give an URL with -u|--url option. See --help for more informations." 2
 fi
 
 # }}}

github/check.sickchill.update

@@ -0,0 +1,205 @@
+#!/bin/sh
+# Purpose {{{
+## Create a temp file (to monitor) if an upgrade is available for Sickchill
+## project on Github.
+## It's based on the Sickchill URL site to get the current version.
+## How-to use {{{
+### 1. Needs releasetags script, in the same directory
+### cf. https://git.101010.fr/gardouille-dotfiles/scripts/github/releasetags
+# wget https://git.101010.fr/gardouille-dotfiles/scripts/raw/branch/master/github/releasetags
+### 2. Create a cron job with Sickchill URL as first argument, eg.
+#00 20 * * * root /opt/repos/ipr.scripts/github/check_sickchill_update http://sickchill.domain.tld:port/System/Info/Public
+### 3. Monitor the temp file : /tmp/.github.sickchill.upgrade
+# Or enable MAILTO in cronjob and edit the script to print a message.
+# Or send a mail.
+# …
+## }}}
+# }}}
+
+# Vars {{{
+readonly PROGNAME=$(basename "${0}")
+readonly NBARGS="${#}"
+## Test if DEBUG is already defined (by parent script,…)
+[ -z "${DEBUG}" ] && DEBUG=1
+
+## Colors
+readonly PURPLE='\033[1;35m'
+readonly RED='\033[0;31m'
+readonly RESET='\033[0m'
+readonly COLOR_DEBUG="${PURPLE}"
+
+script_wd=$(dirname "${0}")
+sickchill_repo_url="https://github.com/SickChill/SickChill"
+# }}}
+
+usage() {                                                       # {{{
+
+	cat <<- EOF
+usage: $PROGNAME [-d|-f|-h] --url http://sickchill.domain.tld:port/config
+Compare current version of an installed Sickchill site and the last available.
+
+EXAMPLE :
+    - Compare the current version installed on http://sickchill.domain.tld:port
+        check.sickchill.update --url http://sickchill.domain.tld:port/config
+
+OPTIONS :
+    -f,--file
+        Set the path to the temp file that will be create and
+        that should be monitored (default: /tmp/.github.sickchill.upgrade).
+
+    -u,--url
+        Specify the URL of the Sickchill instance to check.
+
+    -d,--debug
+        Enable debug messages.
+
+    -h,--help
+        Print this help message.
+
+EOF
+
+}
+# }}}
+debug_message() {                                               # {{{
+
+	local_debug_message="${1}"
+
+	## Print message if DEBUG is enable (=0)
+	[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG − ${PROGNAME} : ${local_debug_message}"
+
+	return 0
+}
+# }}}
+error_message() {                                               # {{{
+
+	local_error_message="${1}"
+	local_error_code="${2}"
+
+	## Print message if DEBUG is enable (=0)
+	[ "${DEBUG}" -eq "0" ] && printf '%b\n' "ERROR − ${PROGNAME} : ${RED}${local_error_message}${RESET}"
+
+	exit "${local_error_code:=66}"
+}
+# }}}
+define_vars() {                                                 # {{{
+
+	## If sickchill_url wasn't defined (argument,...) {{{
+	if [ -z "${sickchill_url}" ]; then
+		### Display help message and exit
+		usage
+		error_message "Please set the Sickchill's URL with -u|--url option." 3
+	fi
+	## }}}
+
+	## If sickchill_new_version_file wasn't defined (argument,...) {{{
+	if [ -z "${sickchill_new_version_file}" ]; then
+		### Store it in /tmp directory
+		sickchill_new_version_file="/tmp/.github.sickchill.upgrade"
+	fi
+	## }}}
+
+	## TODO: Use --no-progress-meter instead of --silent
+	##       when curl 7.74.x will be available on Debian Stable
+	sickchill_current_version=$(curl --silent "${sickchill_url:=/dev/null}" | \grep -oP '(?<=https://github.com/SickChill/SickChill/releases/tag/v)[[:alnum:].]*')
+
+	sickchill_new_version=$("${script_wd}"/releasetags "${sickchill_repo_url}" | grep -vE -- '(dev|rc)' | head -n1 | sed 's/v//')
+
+}
+# }}}
+
+main() {                                                        # {{{
+
+	## Define all vars according the selected options
+	define_vars
+
+	## Check if the current version is the last one {{{
+	if [ "${sickchill_current_version}" != "${sickchill_new_version}" ]; then
+		debug_message "Test Sickchill version − \
+Current version (${sickchill_current_version}) and new one (${sickchill_new_version}) seems to be different."
+
+		## Create a temp file to monitor
+		debug_message "Test Sickchill version − \
+Create ${sickchill_new_version_file} temp file to monitore."
+		touch -- "${sickchill_new_version_file}"
+		printf '\e[1;35m%-6s\e[m\n' "An upgrade is available for Sickchill (current : ${sickchill_current_version}) : ${sickchill_new_version}." >> "${sickchill_new_version_file}"
+
+	else
+		debug_message "Test Sickchill version − \
+The current version (${sickchill_current_version}) is up-to-date."
+		rm -f -- "${sickchill_new_version_file}"
+	fi
+	## }}}
+
+}
+# }}}
+
+# Manage arguments                                                # {{{
+# This code can't be in a function due to arguments
+
+if [ ! "${NBARGS}" -eq "0" ]; then
+
+	## If the first argument is not an option
+	if ! printf -- '%s' "${1}" | grep -q -E -- "^-+";
+	then
+		usage
+		error_message "Unknown argument (${1}), check the help." 1
+	fi
+
+	manage_arg="0"
+
+	# Parse all options (start with a "-") one by one
+	while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
+
+	case "${1}" in
+		-u|--url )             ## Set URL
+			## Move to the next argument
+			shift
+			## Define sickchill_url
+			sickchill_url="${1}"
+			;;
+		-d|--debug )           ## debug
+			DEBUG=0
+			;;
+		-h|--help )            ## help
+			usage
+			## Exit after help informations
+			exit 0
+			;;
+		-f|--file )            ## Set temp file
+			## Move to the next argument
+			shift
+			## Define sickchill_new_version_file
+			sickchill_new_version_file="${1}"
+			;;
+		-- )                   ## End of options list
+			## End the while loop
+			break
+			;;
+		* )                    ## unknow option
+			printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
+			printf '%b\n' "---"
+			usage
+			exit 1
+			;;
+	esac
+
+	debug_message "Arguments management − \
+${RED}${1}${COLOR_DEBUG} option managed."
+
+	## Move to the next argument
+	shift
+	manage_arg=$((manage_arg+1))
+
+	done
+
+	debug_message "Arguments management − \
+${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
+else
+	error_message "Please at least give an URL with -u|--url option. See --help for more informations." 2
+fi
+
+# }}}
+
+main
+
+exit 0