init: add PGSCLS env variable

* postgresql-ctl.in: Respect PGSCLS env variable.
* postgresql.init.in: Export PGSCLS variable possibly sourced from
sysconfig configuration file.
* NEWS: Document.

3 files changed, 13 insertions, 2 deletions

diff --git a/NEWS b/NEWS
index c2d0c5c..d2062f4 100644
--- a/NEWS
+++ b/NEWS
@@ -20,6 +20,10 @@ New in 3.0 version
 
 * The starting timeout is now configurable via PGSTARTTIMEOUT.
 
+* Service file and initscript now support running of PostgreSQL extensions
+  built against specific software collections, specified by PGSCLS
+  environment variable.
+
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 New in 2.0 version
diff --git a/postgresql-ctl.in b/postgresql-ctl.in
index 546ffba..ad18004 100644
--- a/postgresql-ctl.in
+++ b/postgresql-ctl.in
@@ -17,6 +17,11 @@
 
 @SCL_SOURCE@
 
+# Help users to run postgresql server extensions built against specific
+# software collection (that said, such collection is runtime dependancy of
+# such extension, not the server itself).
+test -n "$PGSCLS" && source scl_source enable $PGSCLS
+
 port=()
 if test "$1" = "start" && test -n "$PGPORT"; then
     port=(-o "-p $PGPORT")
diff --git a/postgresql.init.in b/postgresql.init.in
index ca0909e..7fca5f3 100644
--- a/postgresql.init.in
+++ b/postgresql.init.in
@@ -74,6 +74,7 @@ PG_OOM_ADJ=-17
 export PGDATA
 export PGPORT
 export PGSTARTTIMEOUT
+export PGSCLS
 
 lockfile="/var/lock/subsys/${NAME}"
 
@@ -117,8 +118,9 @@ start()
     # the system too long.  See `man pg_ctl & -w option`.  This is not issue in
     # case of systemd.
 
-    run_cmd_as_dbadmin \
-            "@libexecdir@/postgresql-ctl start -D ${PGDATA} -s \
+    run_cmd_as_dbadmin "\
+            PGSCLS='${PGSCLS}' \
+            @libexecdir@/postgresql-ctl start -D ${PGDATA} -s \
                 -w -t ${PGSTARTTIMEOUT-30}" \
             "$PGLOG" "$PGLOG"