Move some openrc deps/order into config file.

Author: vaeth

ChangeLog

@@ -1,5 +1,14 @@
 # ChangeLog for zram-init:
 
+*zram-init-13.2:
+	Martin Väth <martin at mvath.de>:
+	- Rework openrc order/dependencies once more: Drop from the
+	  init-script the dependencies which might need to change in some
+	  typical setups. Put them instead into the config file with default
+	  for the (conjectured) most likely setup. Also add a verbose comment
+	  describing why it is there now and when/why/how to change it.
+	  See the discussion in https://github.com/vaeth/zram-init/issues/56
+
 *zram-init-13.1:
 	Xiangzhe (https://github.com/xz-de):
 	- Fix order for openrc

README.md

@@ -37,7 +37,7 @@ should go into `/lib/modprobe.d` or `/etc/modprobe.d` and be modified
 appropriately.
 
 To use `LZ4` compression with zram your kernel needs to be compiled with
-a corresponding options. Depending on your kernel version this might be
+corresponding options. Depending on your kernel version this might be
 
 - `CONFIG_ZRAM_LZ4_COMPRESS=y` (for older kernels)
 - `CONFIG_CRYPTO_LZ4=y` (for recent kernels)

openrc/conf.d/zram-init

@@ -140,3 +140,19 @@ algo3=zstd
 labl3=zram_swap2
 uuid3=
 args3=
+
+# The init-file does not enforce any order or dependency on bootmisc or
+# tmpfiles.setup, but very likely at least some order should be configured
+# in the config file.
+# Note that bootmisc and tmpfiles.setup typically both create /tmp and other
+# temporary directories (if they do no not exist already) but also some
+# subdirectories in it.
+# Depending on whether zram-init should be used to mount directories on
+# mount-points which are typically permanent or volatile (that is, removed
+# and recreated at # every restart) you might want to put these services
+# into rc_before or rc_after (or possibly even stronger rc_use or rc_depend).
+# If both is used, it might be addiotionally necessary to write a separate
+# init-file which creates a needed mount point and to rc_depend on it here.
+#rc_after=""
+#rc_depend=""
+rc_before="bootmisc tmpfiles.setup"

openrc/init.d/zram-init

@@ -3,9 +3,7 @@
 
 depend() {
 	need localmount swap
-	before bootmisc
 	after modules
-	use tmpfiles.setup
 }
 
 ZramInit() {