Merge pull request #475 from linuxserver/universal-cron-s6v3

switch to hybrid (universal-cron)

root/etc/s6-overlay/s6-rc.d/init-mod-universal-cron-add-package/run

@@ -0,0 +1,8 @@
+#!/usr/bin/with-contenv bash
+
+if [ ! -f /usr/sbin/cron ] && [ -f /usr/bin/apt ]; then
+    echo "**** Adding cron to package install list ****"
+    echo "cron" >> /mod-repo-packages-to-install.list
+else
+    echo "**** cron package already installed, skipping ****"
+fi

root/etc/s6-overlay/s6-rc.d/init-mod-universal-cron-add-package/type

@@ -0,0 +1 @@
+oneshot

root/etc/s6-overlay/s6-rc.d/init-mod-universal-cron-add-package/up

@@ -0,0 +1 @@
+/etc/s6-overlay/s6-rc.d/init-mod-universal-cron-add-package/run

root/etc/s6-overlay/s6-rc.d/init-mod-universal-cron-setup/run

@@ -0,0 +1,35 @@
+#!/usr/bin/with-contenv bash
+
+# make folders
+mkdir -p \
+    /config/crontabs
+
+# if root crontabs do not exist in config
+if [[ ! -f /config/crontabs/root ]]; then
+    # copy root crontab from system
+    if crontab -l -u root; then
+        crontab -l -u root > /config/crontabs/root
+    fi
+    
+    # if root crontabs still do not exist in config (were not copied from system)
+    # copy root crontab from included defaults (using -n, do not overwrite an existing file)
+    cp -n /defaults/crontabs-mod/root /config/crontabs/
+fi
+
+
+# if abc crontabs do not exist in config
+if [[ ! -f /config/crontabs/abc ]]; then
+    # copy abc crontab from system
+    if crontab -l -u abc; then
+        crontab -l -u abc > /config/crontabs/abc
+    fi
+
+    # if abc crontabs still do not exist in config (were not copied from system)
+    # copy abc crontab from included defaults
+    cp -n /defaults/crontabs-mod/abc /config/crontabs/
+fi
+
+
+# import user crontabs
+crontab -u root /config/crontabs/root
+crontab -u abc /config/crontabs/abc

root/etc/s6-overlay/s6-rc.d/init-mod-universal-cron-setup/type

@@ -0,0 +1 @@
+oneshot

root/etc/s6-overlay/s6-rc.d/init-mod-universal-cron-setup/up

@@ -0,0 +1 @@
+/etc/s6-overlay/s6-rc.d/init-mod-universal-cron-setup/run

root/etc/s6-overlay/s6-rc.d/svc-mod-universal-cron/run

@@ -0,0 +1,9 @@
+#!/usr/bin/with-contenv bash
+
+if [ -f /usr/bin/apt ]; then
+    # ubuntu
+    exec /usr/sbin/cron -f -L 1
+elif [ -f /sbin/apk ]; then
+    # alpine
+    exec /usr/sbin/crond -f -S -l 5
+fi

root/etc/s6-overlay/s6-rc.d/svc-mod-universal-cron/type

@@ -0,0 +1 @@
+longrun