Fix zfs-functions packaging bug

This fixes a bug where the generated zfs-functions was being included
along with original zfs-functions.in in the make dist tarball.  This
caused an unfortunate series of events during build/packaging that
resulted in the RPM-installed /etc/zfs/zfs-functions listing the
paths as:

ZFS="/usr/local/sbin/zfs"
ZED="/usr/local/sbin/zed"
ZPOOL="/usr/local/sbin/zpool"

When they should have been:

ZFS="/sbin/zfs"
ZED="/sbin/zed"
ZPOOL="/sbin/zpool"

This affects init.d (non-systemd) distros like CentOS 6.

/etc/default/zfs and /etc/zfs/zfs-functions are also used by the
initramfs, so they need to be built even when init.d support is not.
They have been moved to the (new) etc/default and (existing) etc/zfs
source directories, respectively.

Fixes: #9443

Co-authored-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Richard Laager <rlaager@wiktel.com>

etc/Makefile.am

@@ -1,2 +1,2 @@
-SUBDIRS = zfs sudoers.d $(ZFS_INIT_SYSTEMD) $(ZFS_INIT_SYSV) $(ZFS_MODULE_LOAD)
-DIST_SUBDIRS = init.d zfs systemd modules-load.d sudoers.d
+SUBDIRS = default zfs sudoers.d $(ZFS_INIT_SYSTEMD) $(ZFS_INIT_SYSV) $(ZFS_MODULE_LOAD)
+DIST_SUBDIRS = default init.d zfs systemd modules-load.d sudoers.d

etc/default/.gitignore

@@ -0,0 +1 @@
+zfs

etc/default/Makefile.am

@@ -0,0 +1,12 @@
+initconfdir = $(DEFAULT_INITCONF_DIR)
+initconf_SCRIPTS = zfs
+
+EXTRA_DIST = \
+	$(top_srcdir)/etc/default/zfs.in
+
+$(initconf_SCRIPTS):%:%.in Makefile
+	  $(SED) \
+		 -e 's,@sysconfdir\@,$(sysconfdir),g' \
+		 $< >'$@'
+
+CLEANFILES = $(initconf_SCRIPTS)

etc/init.d/.gitignore

@@ -1,4 +1,3 @@
-zfs-functions
 zfs-import
 zfs-mount
 zfs-share

etc/init.d/Makefile.am

@@ -1,21 +1,15 @@
 initdir = $(DEFAULT_INIT_DIR)
 init_SCRIPTS = zfs-import zfs-mount zfs-share zfs-zed
 
-initcommondir = $(sysconfdir)/zfs
-initcommon_SCRIPTS = zfs-functions
-
 initconfdir = $(DEFAULT_INITCONF_DIR)
-initconf_SCRIPTS = zfs
 
 EXTRA_DIST = \
-	$(top_srcdir)/etc/init.d/zfs-functions.in \
 	$(top_srcdir)/etc/init.d/zfs-share.in \
 	$(top_srcdir)/etc/init.d/zfs-import.in \
 	$(top_srcdir)/etc/init.d/zfs-mount.in \
-	$(top_srcdir)/etc/init.d/zfs-zed.in \
-	$(top_srcdir)/etc/init.d/zfs.in
+	$(top_srcdir)/etc/init.d/zfs-zed.in
 
-$(init_SCRIPTS) $(initconf_SCRIPTS) $(initcommon_SCRIPTS):%:%.in Makefile
+$(init_SCRIPTS):%:%.in Makefile
 	-(if [ -e /etc/debian_version ]; then \
 		NFS_SRV=nfs-kernel-server; \
 	  else \
@@ -26,7 +20,8 @@ $(init_SCRIPTS) $(initconf_SCRIPTS) $(initcommon_SCRIPTS):%:%.in Makefile
 	  else \
 		SHELL=/bin/sh; \
 	  fi; \
-	  $(SED) -e 's,@bindir\@,$(bindir),g' \
+	  $(SED) \
+		 -e 's,@bindir\@,$(bindir),g' \
 		 -e 's,@sbindir\@,$(sbindir),g' \
 		 -e 's,@udevdir\@,$(udevdir),g' \
 		 -e 's,@udevruledir\@,$(udevruledir),g' \
@@ -37,7 +32,6 @@ $(init_SCRIPTS) $(initconf_SCRIPTS) $(initcommon_SCRIPTS):%:%.in Makefile
 		 -e "s,@SHELL\@,$$SHELL,g" \
 		 -e "s,@NFS_SRV\@,$$NFS_SRV,g" \
 		 $< >'$@'; \
-	  [ '$@' = 'zfs-functions' -o '$@' = 'zfs' ] || \
 		chmod +x '$@')
 
-CLEANFILES = $(init_SCRIPTS) $(initcommon_SCRIPTS) $(initconf_SCRIPTS)
+CLEANFILES = $(init_SCRIPTS)

etc/init.d/README.md

@@ -35,7 +35,7 @@ SUPPORT
 
   If you're making your own distribution and you want the scripts to
   work on that, the biggest problem you'll (probably) have is the part
-  at the beginning of the "zfs-functions.in" file which sets up the
+  at the beginning of the "zfs-functions" file which sets up the
   logging output.
 
 INSTALLING INIT SCRIPT LINKS

etc/zfs/.gitignore

@@ -0,0 +1 @@
+zfs-functions

etc/zfs/Makefile.am

@@ -6,5 +6,29 @@ pkgsysconf_DATA = \
 	vdev_id.conf.sas_switch.example \
 	vdev_id.conf.multipath.example \
 	vdev_id.conf.scsi.example
+pkgsysconf_SCRIPTS = \
+	zfs-functions
 
-EXTRA_DIST = $(pkgsysconf_DATA)
+EXTRA_DIST = $(pkgsysconf_DATA) \
+	zfs-functions.in
+
+$(pkgsysconf_SCRIPTS):%:%.in Makefile
+	-(if [ -e /etc/debian_version ]; then \
+		NFS_SRV=nfs-kernel-server; \
+	  else \
+		NFS_SRV=nfs; \
+	  fi; \
+	  if [ -e /sbin/openrc-run ]; then \
+		SHELL=/sbin/openrc-run; \
+	  else \
+		SHELL=/bin/sh; \
+	  fi; \
+	  $(SED) \
+		 -e 's,@sbindir\@,$(sbindir),g' \
+		 -e 's,@sysconfdir\@,$(sysconfdir),g' \
+		 -e 's,@initconfdir\@,$(initconfdir),g' \
+		 $< >'$@'; \
+	  [ '$@' = 'zfs-functions' ] || \
+		chmod +x '$@')
+
+CLEANFILES = $(pkgsysconf_SCRIPTS)