Convert contrib modules to use the extension facility.

This isn't fully tested as yet, in particular I'm not sure that the
"foo--unpackaged--1.0.sql" scripts are OK.  But it's time to get some
buildfarm cycles on it.

sepgsql is not converted to an extension, mainly because it seems to
require a very nonstandard installation process.

Dimitri Fontaine and Tom Lane

contrib/spi/.gitignore

@@ -1,5 +0,0 @@
-/autoinc.sql
-/insert_username.sql
-/moddatetime.sql
-/refint.sql
-/timetravel.sql

contrib/spi/Makefile

@@ -1,7 +1,15 @@
 # contrib/spi/Makefile
 
 MODULES = autoinc insert_username moddatetime refint timetravel
-DATA_built = $(addsuffix .sql, $(MODULES))
+
+EXTENSION = autoinc insert_username moddatetime refint timetravel
+
+DATA = autoinc--1.0.sql autoinc--unpackaged--1.0.sql \
+       insert_username--1.0.sql insert_username--unpackaged--1.0.sql \
+       moddatetime--1.0.sql moddatetime--unpackaged--1.0.sql \
+       refint--1.0.sql refint--unpackaged--1.0.sql \
+       timetravel--1.0.sql timetravel--unpackaged--1.0.sql
+
 DOCS = $(addsuffix .example, $(MODULES))
 
 # this is needed for the regression tests;

contrib/spi/autoinc--1.0.sql

@@ -0,0 +1,6 @@
+/* contrib/spi/autoinc--1.0.sql */
+
+CREATE OR REPLACE FUNCTION autoinc()
+RETURNS trigger
+AS 'MODULE_PATHNAME'
+LANGUAGE C;

contrib/spi/autoinc--unpackaged--1.0.sql

@@ -0,0 +1,3 @@
+/* contrib/spi/autoinc--unpackaged--1.0.sql */
+
+ALTER EXTENSION autoinc ADD function autoinc();

contrib/spi/autoinc.control

@@ -0,0 +1,5 @@
+# autoinc extension
+comment = 'functions for autoincrementing fields'
+default_version = '1.0'
+module_pathname = '$libdir/autoinc'
+relocatable = true

contrib/spi/autoinc.sql.in

@@ -1,9 +0,0 @@
-/* contrib/spi/autoinc.sql.in */
-
--- Adjust this setting to control where the objects get created.
-SET search_path = public;
-
-CREATE OR REPLACE FUNCTION autoinc()
-RETURNS trigger
-AS 'MODULE_PATHNAME'
-LANGUAGE C;

contrib/spi/insert_username--1.0.sql

@@ -0,0 +1,6 @@
+/* contrib/spi/insert_username--1.0.sql */
+
+CREATE OR REPLACE FUNCTION insert_username()
+RETURNS trigger
+AS 'MODULE_PATHNAME'
+LANGUAGE C;

contrib/spi/insert_username--unpackaged--1.0.sql

@@ -0,0 +1,3 @@
+/* contrib/spi/insert_username--unpackaged--1.0.sql */
+
+ALTER EXTENSION insert_username ADD function insert_username();

contrib/spi/insert_username.control

@@ -0,0 +1,5 @@
+# insert_username extension
+comment = 'functions for tracking who changed a table'
+default_version = '1.0'
+module_pathname = '$libdir/insert_username'
+relocatable = true

contrib/spi/insert_username.sql.in

@@ -1,9 +0,0 @@
-/* contrib/spi/insert_username.sql.in */
-
--- Adjust this setting to control where the objects get created.
-SET search_path = public;
-
-CREATE OR REPLACE FUNCTION insert_username()
-RETURNS trigger
-AS 'MODULE_PATHNAME'
-LANGUAGE C;

contrib/spi/moddatetime--1.0.sql

@@ -0,0 +1,6 @@
+/* contrib/spi/moddatetime--1.0.sql */
+
+CREATE OR REPLACE FUNCTION moddatetime()
+RETURNS trigger
+AS 'MODULE_PATHNAME'
+LANGUAGE C;

contrib/spi/moddatetime--unpackaged--1.0.sql

@@ -0,0 +1,3 @@
+/* contrib/spi/moddatetime--unpackaged--1.0.sql */
+
+ALTER EXTENSION moddatetime ADD function moddatetime();

contrib/spi/moddatetime.control

@@ -0,0 +1,5 @@
+# moddatetime extension
+comment = 'functions for tracking last modification time'
+default_version = '1.0'
+module_pathname = '$libdir/moddatetime'
+relocatable = true

contrib/spi/moddatetime.sql.in

@@ -1,9 +0,0 @@
-/* contrib/spi/moddatetime.sql.in */
-
--- Adjust this setting to control where the objects get created.
-SET search_path = public;
-
-CREATE OR REPLACE FUNCTION moddatetime()
-RETURNS trigger
-AS 'MODULE_PATHNAME'
-LANGUAGE C;

contrib/spi/refint--1.0.sql

@@ -1,7 +1,4 @@
-/* contrib/spi/refint.sql.in */
-
--- Adjust this setting to control where the objects get created.
-SET search_path = public;
+/* contrib/spi/refint--1.0.sql */
 
 CREATE OR REPLACE FUNCTION check_primary_key()
 RETURNS trigger

contrib/spi/refint--unpackaged--1.0.sql

@@ -0,0 +1,4 @@
+/* contrib/spi/refint--unpackaged--1.0.sql */
+
+ALTER EXTENSION refint ADD function check_primary_key();
+ALTER EXTENSION refint ADD function check_foreign_key();

contrib/spi/refint.control

@@ -0,0 +1,5 @@
+# refint extension
+comment = 'functions for implementing referential integrity (obsolete)'
+default_version = '1.0'
+module_pathname = '$libdir/refint'
+relocatable = true

contrib/spi/timetravel--1.0.sql

@@ -1,7 +1,4 @@
-/* contrib/spi/timetravel.sql.in */
-
--- Adjust this setting to control where the objects get created.
-SET search_path = public;
+/* contrib/spi/timetravel--1.0.sql */
 
 CREATE OR REPLACE FUNCTION timetravel()
 RETURNS trigger

contrib/spi/timetravel--unpackaged--1.0.sql

@@ -0,0 +1,5 @@
+/* contrib/spi/timetravel--unpackaged--1.0.sql */
+
+ALTER EXTENSION timetravel ADD function timetravel();
+ALTER EXTENSION timetravel ADD function set_timetravel(name,integer);
+ALTER EXTENSION timetravel ADD function get_timetravel(name);

contrib/spi/timetravel.control

@@ -0,0 +1,5 @@
+# timetravel extension
+comment = 'functions for implementing time travel'
+default_version = '1.0'
+module_pathname = '$libdir/timetravel'
+relocatable = true