Make CI work with multiple Pg versions, really necessary to

test the various differences in backends for an extension like this.

.github/workflows/ci.yml

@@ -11,25 +11,51 @@ jobs:
     runs-on: ubuntu-20.04
 
     env:
-      PG_VERSION: 14
+      PGVER: 10
       OS_NAME: focal-pgdg
+      OS_PGVER: 14
+
+
+    name: "CI"
+    strategy:
+      matrix:
+        ci:
+        - { PGVER: 9.5 }
+        - { PGVER: 9.6 }
+        - { PGVER: 10 }
+        - { PGVER: 11 }
+        - { PGVER: 12 }
+        - { PGVER: 13 }
+        - { PGVER: 14 }
 
     steps:
 
     - name: 'Check Out'
       uses: actions/checkout@v2
 
-    - name: 'Install'
+    - name: 'Uninstall PostgreSQL'
+      run: |
+        sudo apt-get -y -f --ignore-missing --purge remove postgresql postgresql-common postgresql-$OS_PGVER
+        sudo apt-get -y autoremove
+        sudo rm -rf /var/lib/postgresql
+
+    - name: 'Install PostgreSQL'
       run: |
+        export PGVER=${{ matrix.ci.PGVER }}
+        export PGDATA=/var/lib/postgresql/$PGVER/main
+        export PGETC=/etc/postgresql/$PGVER/main
+        export PGBIN=/usr/lib/postgresql/$PGVER/bin
         curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
-        sudo add-apt-repository "deb http://apt.postgresql.org/pub/repos/apt/ $OS_NAME main $PG_VERSION"
-        sudo apt-get -y install libcurl4-gnutls-dev postgresql-server-dev-$PG_VERSION
-        sudo cp ./ci/pg_hba.conf /etc/postgresql/$PG_VERSION/main/pg_hba.conf
-        sudo systemctl start postgresql.service
+        sudo add-apt-repository "deb http://apt.postgresql.org/pub/repos/apt/ $OS_NAME main $PGVER"
+        sudo apt-get -y install libcurl4-gnutls-dev postgresql-server-dev-$PGVER postgresql-client-$PGVER postgresql-$PGVER
+        sudo su postgres -c "$PGBIN/pg_ctl --pgdata $PGDATA stop"
+        # sudo $PGBIN/pg_ctlcluster $PGVER main stop
+        sudo cp ./ci/pg_hba.conf $PGETC/pg_hba.conf
+        sudo su postgres -c "$PGBIN/pg_ctl --pgdata $PGDATA start -o '-c config_file=$PGETC/postgresql.conf'"
 
     - name: 'Build & Test'
       run: |
-        export PATH=/usr/lib/postgresql/$PG_VERSION/bin/:$PATH
-        make
+        export PATH=/usr/lib/postgresql/$PGVER/bin/:$PATH
+        make DEBUG=1 all
         sudo make install
         PGUSER=postgres make installcheck || (cat regression.diffs && /bin/false)

Makefile

@@ -21,7 +21,7 @@ LIBS += $(shell $(CURL_CONFIG) --libs)
 SHLIB_LINK := $(LIBS)
 
 ifdef DEBUG
-COPT			+= -O0
+COPT			+= -O0 -Werror
 endif
 
 PGXS := $(shell $(PG_CONFIG) --pgxs)

expected/http.out

@@ -180,22 +180,20 @@ BEGIN
     SELECT status FROM http_get('https://httpbin.org/status/555');
 EXCEPTION
     WHEN OTHERS THEN
-        RAISE EXCEPTION 'Failed to connect';
+        RAISE WARNING 'Failed to connect';
 END;
 $$;
-ERROR:  Failed to connect
-CONTEXT:  PL/pgSQL function inline_code_block line 6 at RAISE
+WARNING:  Failed to connect
 -- Still an error
 DO $$
 BEGIN
     SELECT status FROM http_get('https://httpbin.org/status/555');
 EXCEPTION
     WHEN OTHERS THEN
-        RAISE EXCEPTION 'Failed to connect';
+        RAISE WARNING 'Failed to connect';
 END;
 $$;
-ERROR:  Failed to connect
-CONTEXT:  PL/pgSQL function inline_code_block line 6 at RAISE
+WARNING:  Failed to connect
 -- Reset options
 SELECT http_reset_curlopt();
  http_reset_curlopt 

http.c

@@ -80,7 +80,7 @@
 #  define table_close(rel, lock) heap_close((rel), (lock))
 #endif
 
-#ifndef PG_GETARG_JSONB_P
+#if PG_VERSION_NUM < 110000
 #define PG_GETARG_JSONB_P(x) DatumGetJsonb(PG_GETARG_DATUM(x))
 #endif
 
@@ -597,16 +597,15 @@ static Oid
 get_extension_schema(Oid ext_oid)
 {
 	Oid			result;
-	Relation	rel;
 	SysScanDesc scandesc;
 	HeapTuple	tuple;
 	ScanKeyData entry[1];
-	rel = table_open(ExtensionRelationId, AccessShareLock);
 #if PG_VERSION_NUM >= 120000
 	Oid pg_extension_oid = Anum_pg_extension_oid;
 #else
 	Oid pg_extension_oid = ObjectIdAttributeNumber;
 #endif
+	Relation rel = table_open(ExtensionRelationId, AccessShareLock);
 
 	ScanKeyInit(&entry[0],
 				pg_extension_oid,
@@ -642,18 +641,19 @@ typname_get_tupledesc(const char *extname, const char *typname)
 {
 	Oid extoid = get_extension_oid(extname, true);
 	Oid extschemaoid;
+	Oid typoid;
 
 	if ( ! OidIsValid(extoid) )
 		elog(ERROR, "could not lookup '%s' extension oid", extname);
 
 	extschemaoid = get_extension_schema(extoid);
 
 #if PG_VERSION_NUM >= 120000
-	Oid typoid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
+	typoid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
 	               PointerGetDatum(typname),
 	               ObjectIdGetDatum(extschemaoid));
 #else
-	Oid typoid = GetSysCacheOid2(TYPENAMENSP,
+	typoid = GetSysCacheOid2(TYPENAMENSP,
 	               PointerGetDatum(typname),
 	               ObjectIdGetDatum(extschemaoid));
 #endif

sql/http.sql

@@ -112,7 +112,7 @@ BEGIN
     SELECT status FROM http_get('https://httpbin.org/status/555');
 EXCEPTION
     WHEN OTHERS THEN
-        RAISE EXCEPTION 'Failed to connect';
+        RAISE WARNING 'Failed to connect';
 END;
 $$;
 -- Still an error
@@ -121,7 +121,7 @@ BEGIN
     SELECT status FROM http_get('https://httpbin.org/status/555');
 EXCEPTION
     WHEN OTHERS THEN
-        RAISE EXCEPTION 'Failed to connect';
+        RAISE WARNING 'Failed to connect';
 END;
 $$;
 -- Reset options