Merge pull request #55 from jancajthaml-openbank/bugfix/pure-enable-s…

…ervices pure enabling of service files with symlinks
jancajthaml-openbank · Jun 26, 2019 · 8f16ea3 · 8f16ea3
2 parents 8beb59f + b1456b9
commit 8f16ea3
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Showing 6 changed files with 174 additions and 135 deletions.
diff --git a/packaging/debian_amd64/DEBIAN/postinst b/packaging/debian_amd64/DEBIAN/postinst
@@ -2,34 +2,43 @@
 
 set -e
 
+if [ "$(ps -o comm -p 1 --no-headers | tr -d ' ')" = "systemd" ] ; then
+  SYSTEMD_AVAIL=true
+else
+  SYSTEMD_AVAIL=false
+fi
+
+enable() {
+  wanted_by=$(cat /lib/systemd/system/${1} | sed -n -e 's/^.*WantedBy=//p')
+  mkdir -p /etc/systemd/system/${wanted_by}.wants
+  ln -s \
+    "/lib/systemd/system/${1}" \
+    "/etc/systemd/system/${wanted_by}.wants/${1}"
+}
+
+register_cron_job() {
+  ontime="30 14 * * * set -a; systemctl start cnb-rates-import"
+  crontab -l | grep -v 'cnb-rates-import' | crontab -
+  crontab -l | { cat; echo "${ontime}"; } | crontab -
+}
+
 case "$1" in
 
   configure)
-    if [ -f "/etc/init/cnb-rates.conf" ] ; then
-      if [ -d /run/systemd/system ] ; then
-        systemctl unmask \
-          cnb-rates.path \
-          cnb-rates-rest.service \
-          cnb-rates-import.service \
-          cnb-rates-batch.service \
-          cnb-rates.service \
-        >/dev/null
-
-        systemctl enable \
-          cnb-rates.path \
-          cnb-rates-import.service \
-          cnb-rates-rest.service \
-          cnb-rates.service \
-        >/dev/null
-      fi
+    if [ -f /etc/init/cnb-rates.conf ] ; then
 
-      ontime="30 14 * * * set -a; systemctl start cnb-rates-import"
-      crontab -l | grep -v 'cnb-rates-import' | crontab -
-      crontab -l | { cat; echo "${ontime}"; } | crontab -
+      enable cnb-rates.path
+      enable cnb-rates.service
+      enable cnb-rates-rest.service
+      enable cnb-rates-import.service
 
-      if [ -d /run/systemd/system ] ; then
+      if [ ${SYSTEMD_AVAIL} ] ; then
+        (systemctl daemon-reload || :)
         (systemctl start cnb-rates.service >/dev/null || :)
       fi
+
+      register_cron_job
+
     else
       (>&2 echo "/etc/init/cnb-rates.conf file not found")
       exit 1

diff --git a/packaging/debian_amd64/DEBIAN/postrm b/packaging/debian_amd64/DEBIAN/postrm
@@ -2,32 +2,34 @@
 
 set -e
 
-delete_service_files() {
-  if [ -f "/lib/systemd/system/cnb-rates-rest.service" ] ; then
-    rm /lib/systemd/system/cnb-rates-rest.service
+if [ "$(ps -o comm -p 1 --no-headers | tr -d ' ')" = "systemd" ] ; then
+  SYSTEMD_AVAIL=true
+else
+  SYSTEMD_AVAIL=false
+fi
+
+delete() {
+  if [ -f "${1}" ] ; then
+    rm "${1}"
   fi
+}
 
-  if [ -f "/lib/systemd/system/cnb-rates-import.service" ] ; then
-    rm /lib/systemd/system/cnb-rates-import.service
-  fi
+delete_service_files() {
+  delete /etc/systemd/cnb-rates.service.wants/cnb-rates-rest.service
+  delete /lib/systemd/system/cnb-rates-rest.service
 
-  if [ -f "/lib/systemd/system/cnb-rates-batch.service" ] ; then
-    rm /lib/systemd/system/cnb-rates-batch.service
-  fi
+  delete /etc/systemd/cnb-rates.service.wants/cnb-rates-import.service
+  delete /lib/systemd/system/cnb-rates-import.service
 
-  if [ -f "/lib/systemd/system/cnb-rates.service" ] ; then
-    rm /lib/systemd/system/cnb-rates.service
-  fi
+  delete /etc/systemd/cnb-rates.service.wants/cnb-rates.path
+  delete /lib/systemd/system/cnb-rates.path
 
-  if [ -f "/lib/systemd/system/cnb-rates.path" ] ; then
-    rm /lib/systemd/system/cnb-rates.path
-  fi
+  delete /etc/systemd/multi-user.target.wants/cnb-rates.service
+  delete /lib/systemd/system/cnb-rates.service
 }
 
 delete_displace_files() {
-  if [ -f "/etc/init/cnb-rates.conf" ] ; then
-    rm /etc/init/cnb-rates.conf
-  fi
+  delete /etc/init/cnb-rates.conf
 }
 
 unregister_cron_job() {
@@ -37,13 +39,12 @@ unregister_cron_job() {
 case "$1" in
 
   purge)
-    # userdel openbank || :
-
     unregister_cron_job
+
     delete_service_files
     delete_displace_files
 
-    if [ -d /run/systemd/system ] ; then
+    if [ ${SYSTEMD_AVAIL} ] ; then
       (systemctl daemon-reload || :)
       (systemctl reset-failed || :)
     fi
@@ -52,16 +53,19 @@ case "$1" in
   remove)
     unregister_cron_job
 
-    if [ -d /run/systemd/system ] ; then
+    if [ ${SYSTEMD_AVAIL} ] ; then
       (systemctl -a -t service --no-legend  | awk '$1 ~ /cnb-rates/ { print $1 }' | xargs -I {} systemctl stop {} 2> /dev/null || :)
-      (systemctl daemon-reload || :)
     fi
 
     delete_displace_files
+
+    if [ ${SYSTEMD_AVAIL} ] ; then
+      (systemctl daemon-reload || :)
+    fi
   ;;
 
   upgrade|deconfigure)
-    if [ -d /run/systemd/system ] ; then
+    if [ ${SYSTEMD_AVAIL} ] ; then
       systemctl stop cnb-rates 2> /dev/null || :
     fi
   ;;

diff --git a/packaging/debian_arm64/DEBIAN/postinst b/packaging/debian_arm64/DEBIAN/postinst
@@ -2,34 +2,43 @@
 
 set -e
 
+if [ "$(ps -o comm -p 1 --no-headers | tr -d ' ')" = "systemd" ] ; then
+  SYSTEMD_AVAIL=true
+else
+  SYSTEMD_AVAIL=false
+fi
+
+enable() {
+  wanted_by=$(cat /lib/systemd/system/${1} | sed -n -e 's/^.*WantedBy=//p')
+  mkdir -p /etc/systemd/system/${wanted_by}.wants
+  ln -s \
+    "/lib/systemd/system/${1}" \
+    "/etc/systemd/system/${wanted_by}.wants/${1}"
+}
+
+register_cron_job() {
+  ontime="30 14 * * * set -a; systemctl start cnb-rates-import"
+  crontab -l | grep -v 'cnb-rates-import' | crontab -
+  crontab -l | { cat; echo "${ontime}"; } | crontab -
+}
+
 case "$1" in
 
   configure)
-    if [ -f "/etc/init/cnb-rates.conf" ] ; then
-      if [ -d /run/systemd/system ] ; then
-        systemctl unmask \
-          cnb-rates.path \
-          cnb-rates-rest.service \
-          cnb-rates-import.service \
-          cnb-rates-batch.service \
-          cnb-rates.service \
-        >/dev/null
-
-        systemctl enable \
-          cnb-rates.path \
-          cnb-rates-import.service \
-          cnb-rates-rest.service \
-          cnb-rates.service \
-        >/dev/null
-      fi
+    if [ -f /etc/init/cnb-rates.conf ] ; then
 
-      ontime="30 14 * * * set -a; systemctl start cnb-rates-import"
-      crontab -l | grep -v 'cnb-rates-import' | crontab -
-      crontab -l | { cat; echo "${ontime}"; } | crontab -
+      enable cnb-rates.path
+      enable cnb-rates.service
+      enable cnb-rates-rest.service
+      enable cnb-rates-import.service
 
-      if [ -d /run/systemd/system ] ; then
+      if [ ${SYSTEMD_AVAIL} ] ; then
+        (systemctl daemon-reload || :)
         (systemctl start cnb-rates.service >/dev/null || :)
       fi
+
+      register_cron_job
+
     else
       (>&2 echo "/etc/init/cnb-rates.conf file not found")
       exit 1

diff --git a/packaging/debian_arm64/DEBIAN/postrm b/packaging/debian_arm64/DEBIAN/postrm
@@ -2,32 +2,34 @@
 
 set -e
 
-delete_service_files() {
-  if [ -f "/lib/systemd/system/cnb-rates-rest.service" ] ; then
-    rm /lib/systemd/system/cnb-rates-rest.service
+if [ "$(ps -o comm -p 1 --no-headers | tr -d ' ')" = "systemd" ] ; then
+  SYSTEMD_AVAIL=true
+else
+  SYSTEMD_AVAIL=false
+fi
+
+delete() {
+  if [ -f "${1}" ] ; then
+    rm "${1}"
   fi
+}
 
-  if [ -f "/lib/systemd/system/cnb-rates-import.service" ] ; then
-    rm /lib/systemd/system/cnb-rates-import.service
-  fi
+delete_service_files() {
+  delete /etc/systemd/cnb-rates.service.wants/cnb-rates-rest.service
+  delete /lib/systemd/system/cnb-rates-rest.service
 
-  if [ -f "/lib/systemd/system/cnb-rates-batch.service" ] ; then
-    rm /lib/systemd/system/cnb-rates-batch.service
-  fi
+  delete /etc/systemd/cnb-rates.service.wants/cnb-rates-import.service
+  delete /lib/systemd/system/cnb-rates-import.service
 
-  if [ -f "/lib/systemd/system/cnb-rates.service" ] ; then
-    rm /lib/systemd/system/cnb-rates.service
-  fi
+  delete /etc/systemd/cnb-rates.service.wants/cnb-rates.path
+  delete /lib/systemd/system/cnb-rates.path
 
-  if [ -f "/lib/systemd/system/cnb-rates.path" ] ; then
-    rm /lib/systemd/system/cnb-rates.path
-  fi
+  delete /etc/systemd/multi-user.target.wants/cnb-rates.service
+  delete /lib/systemd/system/cnb-rates.service
 }
 
 delete_displace_files() {
-  if [ -f "/etc/init/cnb-rates.conf" ] ; then
-    rm /etc/init/cnb-rates.conf
-  fi
+  delete /etc/init/cnb-rates.conf
 }
 
 unregister_cron_job() {
@@ -37,13 +39,12 @@ unregister_cron_job() {
 case "$1" in
 
   purge)
-    # userdel openbank || :
-
     unregister_cron_job
+
     delete_service_files
     delete_displace_files
 
-    if [ -d /run/systemd/system ] ; then
+    if [ ${SYSTEMD_AVAIL} ] ; then
       (systemctl daemon-reload || :)
       (systemctl reset-failed || :)
     fi
@@ -52,16 +53,19 @@ case "$1" in
   remove)
     unregister_cron_job
 
-    if [ -d /run/systemd/system ] ; then
+    if [ ${SYSTEMD_AVAIL} ] ; then
       (systemctl -a -t service --no-legend  | awk '$1 ~ /cnb-rates/ { print $1 }' | xargs -I {} systemctl stop {} 2> /dev/null || :)
-      (systemctl daemon-reload || :)
     fi
 
     delete_displace_files
+
+    if [ ${SYSTEMD_AVAIL} ] ; then
+      (systemctl daemon-reload || :)
+    fi
   ;;
 
   upgrade|deconfigure)
-    if [ -d /run/systemd/system ] ; then
+    if [ ${SYSTEMD_AVAIL} ] ; then
       systemctl stop cnb-rates 2> /dev/null || :
     fi
   ;;

diff --git a/packaging/debian_armhf/DEBIAN/postinst b/packaging/debian_armhf/DEBIAN/postinst
@@ -2,34 +2,43 @@
 
 set -e
 
+if [ "$(ps -o comm -p 1 --no-headers | tr -d ' ')" = "systemd" ] ; then
+  SYSTEMD_AVAIL=true
+else
+  SYSTEMD_AVAIL=false
+fi
+
+enable() {
+  wanted_by=$(cat /lib/systemd/system/${1} | sed -n -e 's/^.*WantedBy=//p')
+  mkdir -p /etc/systemd/system/${wanted_by}.wants
+  ln -s \
+    "/lib/systemd/system/${1}" \
+    "/etc/systemd/system/${wanted_by}.wants/${1}"
+}
+
+register_cron_job() {
+  ontime="30 14 * * * set -a; systemctl start cnb-rates-import"
+  crontab -l | grep -v 'cnb-rates-import' | crontab -
+  crontab -l | { cat; echo "${ontime}"; } | crontab -
+}
+
 case "$1" in
 
   configure)
-    if [ -f "/etc/init/cnb-rates.conf" ] ; then
-      if [ -d /run/systemd/system ] ; then
-        systemctl unmask \
-          cnb-rates.path \
-          cnb-rates-rest.service \
-          cnb-rates-import.service \
-          cnb-rates-batch.service \
-          cnb-rates.service \
-        >/dev/null
-
-        systemctl enable \
-          cnb-rates.path \
-          cnb-rates-import.service \
-          cnb-rates-rest.service \
-          cnb-rates.service \
-        >/dev/null
-      fi
+    if [ -f /etc/init/cnb-rates.conf ] ; then
 
-      ontime="30 14 * * * set -a; systemctl start cnb-rates-import"
-      crontab -l | grep -v 'cnb-rates-import' | crontab -
-      crontab -l | { cat; echo "${ontime}"; } | crontab -
+      enable cnb-rates.path
+      enable cnb-rates.service
+      enable cnb-rates-rest.service
+      enable cnb-rates-import.service
 
-      if [ -d /run/systemd/system ] ; then
+      if [ ${SYSTEMD_AVAIL} ] ; then
+        (systemctl daemon-reload || :)
         (systemctl start cnb-rates.service >/dev/null || :)
       fi
+
+      register_cron_job
+
     else
       (>&2 echo "/etc/init/cnb-rates.conf file not found")
       exit 1