mirror of
https://github.com/YunoHost-Apps/synapse_ynh.git
synced 2024-09-03 20:26:38 +02:00
a0b756446f
- Use systemd helper - Use official version syntax - Use app_package_version helper - Put all experimental helper in specific file
184 lines
6 KiB
Bash
184 lines
6 KiB
Bash
# Read the value of a key in a ynh manifest file
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#
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# usage: ynh_read_manifest manifest key
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# | arg: manifest - Path of the manifest to read
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# | arg: key - Name of the key to find
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ynh_read_manifest () {
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manifest="$1"
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key="$2"
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python3 -c "import sys, json;print(json.load(open('$manifest'))['$key'])"
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}
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# Read the upstream version from the manifest
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# this include the number before ~ynh
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#
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# usage: ynh_app_upstream_version
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ynh_app_upstream_version () {
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manifest_path="../manifest.json"
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if [ ! -e "$manifest_path" ]; then
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manifest_path="../settings/manifest.json" # Into the restore script, the manifest is not at the same place
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fi
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version_key=$(ynh_read_manifest "$manifest_path" "version")
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echo "${version_key/~ynh*/}"
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}
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# Read package version from the manifest
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# this include the number after ~ynh
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#
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# usage: ynh_app_package_version
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ynh_app_package_version () {
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manifest_path="../manifest.json"
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if [ ! -e "$manifest_path" ]; then
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manifest_path="../settings/manifest.json" # Into the restore script, the manifest is not at the same place
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fi
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version_key=$(ynh_read_manifest "$manifest_path" "version")
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echo "${version_key/*~ynh/}"
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}
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####### Solve issue https://dev.yunohost.org/issues/1006
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# Build and install a package from an equivs control file
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#
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# example: generate an empty control file with `equivs-control`, adjust its
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# content and use helper to build and install the package:
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# ynh_package_install_from_equivs /path/to/controlfile
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#
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# usage: ynh_package_install_from_equivs controlfile
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# | arg: controlfile - path of the equivs control file
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ynh_package_install_from_equivs () {
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controlfile=$1
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# Check if the equivs package is installed. Or install it.
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ynh_package_is_installed 'equivs' \
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|| ynh_package_install equivs
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# retrieve package information
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pkgname=$(grep '^Package: ' $controlfile | cut -d' ' -f 2) # Retrieve the name of the debian package
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pkgversion=$(grep '^Version: ' $controlfile | cut -d' ' -f 2) # And its version number
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[[ -z "$pkgname" || -z "$pkgversion" ]] \
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&& echo "Invalid control file" && exit 1 # Check if this 2 variables aren't empty.
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# Update packages cache
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ynh_package_update
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# Build and install the package
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TMPDIR=$(mktemp -d)
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# Note that the cd executes into a sub shell
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# Create a fake deb package with equivs-build and the given control file
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# Install the fake package without its dependencies with dpkg
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# Install missing dependencies with ynh_package_install
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(cp "$controlfile" "${TMPDIR}/control" && cd "$TMPDIR" \
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&& equivs-build ./control 1>/dev/null \
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&& sudo dpkg --force-depends \
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-i "./${pkgname}_${pkgversion}_all.deb" 2>&1 \
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&& ynh_package_install -f) || ynh_die "Unable to install dependencies"
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[[ -n "$TMPDIR" ]] && rm -rf $TMPDIR # Remove the temp dir.
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# check if the package is actually installed
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ynh_package_is_installed "$pkgname"
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}
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# Start or restart a service and follow its booting
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#
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# usage: ynh_check_starting "Line to match" [Log file] [Timeout] [Service name]
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#
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# | arg: Line to match - The line to find in the log to attest the service have finished to boot.
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# | arg: Log file - The log file to watch
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# | arg: Service name
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# /var/log/$app/$app.log will be used if no other log is defined.
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# | arg: Timeout - The maximum time to wait before ending the watching. Defaut 300 seconds.
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ynh_check_starting () {
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local line_to_match="$1"
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local service_name="${4:-$app}"
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local app_log="${2:-/var/log/$service_name/$service_name.log}"
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local timeout=${3:-300}
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ynh_clean_check_starting () {
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# Stop the execution of tail.
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kill -s 15 $pid_tail 2>&1
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ynh_secure_remove "$templog" 2>&1
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}
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echo "Starting of $service_name" >&2
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systemctl restart $service_name
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local templog="$(mktemp)"
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# Following the starting of the app in its log
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tail -F -n1 "$app_log" > "$templog" &
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# Get the PID of the tail command
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local pid_tail=$!
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local i=0
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for i in `seq 1 $timeout`
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do
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# Read the log until the sentence is found, that means the app finished to start. Or run until the timeout
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if grep --quiet "$line_to_match" "$templog"
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then
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echo "The service $service_name has correctly started." >&2
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break
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fi
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echo -n "." >&2
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sleep 1
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done
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if [ $i -eq $timeout ]
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then
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echo "The service $service_name didn't fully started before the timeout." >&2
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fi
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echo ""
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ynh_clean_check_starting
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}
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# Create a dedicated systemd config
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#
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# usage: ynh_add_systemd_config [Service name] [Source file]
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# | arg: Service name
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# | arg: Systemd source file (for example appname.service)
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#
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# This will use a template in ../conf/systemd.service
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# and will replace the following keywords with
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# global variables that should be defined before calling
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# this helper :
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#
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# __APP__ by $app
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# __FINALPATH__ by $final_path
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#
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# usage: ynh_add_systemd_config
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ynh_add_systemd_config () {
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local service_name="${1:-$app}"
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finalsystemdconf="/etc/systemd/system/$service_name.service"
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ynh_backup_if_checksum_is_different "$finalsystemdconf"
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sudo cp ../conf/${2:-systemd.service} "$finalsystemdconf"
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# To avoid a break by set -u, use a void substitution ${var:-}. If the variable is not set, it's simply set with an empty variable.
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# Substitute in a nginx config file only if the variable is not empty
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if test -n "${final_path:-}"; then
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ynh_replace_string "__FINALPATH__" "$final_path" "$finalsystemdconf"
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fi
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if test -n "${app:-}"; then
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ynh_replace_string "__APP__" "$app" "$finalsystemdconf"
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fi
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ynh_store_file_checksum "$finalsystemdconf"
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sudo chown root: "$finalsystemdconf"
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sudo systemctl enable $service_name
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sudo systemctl daemon-reload
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}
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# Remove the dedicated systemd config
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#
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# usage: ynh_remove_systemd_config [Service name]
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# | arg: Service name
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#
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# usage: ynh_remove_systemd_config
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ynh_remove_systemd_config () {
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local service_name="${1:-$app}"
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local finalsystemdconf="/etc/systemd/system/$service_name.service"
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if [ -e "$finalsystemdconf" ]; then
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sudo systemctl stop $service_name
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sudo systemctl disable $service_name
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ynh_secure_remove "$finalsystemdconf"
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sudo systemctl daemon-reload
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fi
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}
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