Script to check if Cachet installation is uptodate

github/check.cachet.update

@@ -0,0 +1,67 @@
+#!/bin/sh
+# Purpose {{{
+## Create a temp file (to monitor) if an upgrade is available for Cachet
+## project on Github.
+## It based on the cachet's root directory to get the current version and
+## supposed to be install from source (github) or at least get a VERSION file.
+## How-to use {{{
+### 1. Needs releasetags script, in the same directory
+### cf. https://git.ipr.univ-rennes1.fr/cellinfo/scripts/src/master/github/releasetags
+# wget https://git.ipr.univ-rennes1.fr/cellinfo/scripts/raw/master/github/releasetags
+### 2. Create a cron job with Cachet directory as first argument, eg.
+#00 20 * * * root /opt/repos/ipr.scripts/github/check.cachet.update /var/www/cachet
+### 3. Monitor the temp file : /tmp/.github.cachet.upgrade
+# Or enable MAILTO in cronjob and edit the script to print a message.
+# Or send a mail.
+# …
+## }}}
+# }}}
+
+# Expect 1 argument {{{
+if [ $# -ne 1 ]
+then
+	cat << HELP
+
+check.cachet.update  --
+Compare current version of an installed Cachet and the last available.
+
+EXAMPLE :
+    - Compare the current version installed in /var/www/cachet.domain.tld
+        check.cachet.update /var/www/cachet.domain.tld
+
+HELP
+
+	exit 1
+fi
+
+# }}}
+
+# Vars {{{
+DEBUG=1
+
+script_wd=$(dirname "${0}")
+
+cachet_install_dir="${1}"
+cachet_current_version=$(cd "${cachet_install_dir}" || exit 1 ; grep . -m1 VERSION | sed 's/\(.*\)-.*/\1/g' ; cd - > /dev/null || exit 1)
+
+cachet_repo_url="https://github.com/CachetHQ/Cachet"
+cachet_new_version=$("${script_wd}"/releasetags "${cachet_repo_url}" | head -n1 | sed 's/v//')
+
+cachet_new_version_file="/tmp/.github.cachet.upgrade"
+# }}}
+
+# Check if the current version is the last one {{{
+if [ "${cachet_current_version}" != "${cachet_new_version}" ]; then
+	[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Test version — Current version (${cachet_current_version}) and new one (${cachet_new_version}) seems to be different."
+
+	## Create a temp file to monitor
+	touch -- "${cachet_new_version_file}"
+	printf '\e[1;35m%-6s\e[m\n' "An upgrade is available for Cachet : ${cachet_new_version}." >> "${cachet_new_version_file}"
+
+else
+	[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Test version — The current version is up-to-date."
+	rm -f -- "${cachet_new_version_file}"
+fi
+# }}}
+
+exit 0