Rewrite travis script in order to use docker

.travis.yml

@@ -1,51 +1,19 @@
 sudo: required
-dist: trusty
+
 language: c
-matrix:
-   include:
-     - addons: 
-          postgresql: 9.3
-       env:
-          - POSTGRESQL=9.3
-       install:
-           - sudo apt-get install postgresql-server-dev-9.3
-           - sudo make install
-     - addons: 
-          postgresql: 9.4
-       env:
-          - POSTGRESQL=9.4
-       install:
-           - sudo apt-get install postgresql-server-dev-9.4
-           - sudo make install
-     - addons: 
-          postgresql: 9.5
-       install:
-           - sudo apt-get install postgresql-server-dev-9.5
-           - sudo make install
-       env:
-          - POSTGRESQL=9.5
-     - addons: 
-          postgresql: 9.6
-       install:
-           - sudo apt-get install postgresql-server-dev-9.6
-           - sudo make install
-       env:
-          - POSTGRESQL=9.6
-     - # addons: postgresql: 10
-       install:
-           - sudo service postgresql stop
-           - wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | sudo apt-key add -
-           - sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
-           - sudo apt-get update
-           - sudo apt-get install postgresql postgresql-contrib postgresql-client
-           - sudo apt-get install postgresql-server-dev-10
-           - sudo sh -c 'echo "port=5432" >> /etc/postgresql/10/main/postgresql.conf'
-           - sudo pg_ctlcluster 10 main restart
-           - sudo -u postgres psql  -c "create user travis with superuser";
-           - sudo make install
-       env:
-          - POSTGRESQL=10
+
+services: docker
+
+install:
+    - docker build . -t tests --build-arg PG_VERSION=${PG_VERSION}
+
 script:
-  - make installcheck
-after_failure:
-  - cat regression.diffs
+    - docker run tests
+
+env:
+    - PG_VERSION=12
+    - PG_VERSION=11
+    - PG_VERSION=10
+    - PG_VERSION=9.6
+    - PG_VERSION=9.5
+    - PG_VERSION=9.4

Dockerfile

@@ -0,0 +1,29 @@
+ARG PG_VERSION
+FROM postgres:${PG_VERSION}-alpine
+
+# Environment
+ENV LANG=C.UTF-8 PGDATA=/pg/data
+
+# Install dependencies
+RUN apk add --no-cache \
+	make musl-dev gcc
+
+# Make directories
+RUN	mkdir -p ${PGDATA} && \
+	mkdir -p /pg/testdir
+
+# Add data to test dir
+ADD . /pg/testdir
+
+# Grant privileges
+RUN	chown -R postgres:postgres ${PGDATA} && \
+	chown -R postgres:postgres /pg/testdir && \
+	chmod a+rwx /usr/local/lib/postgresql && \
+	chmod a+rwx /usr/local/share/postgresql/extension
+
+COPY run_tests.sh /run_tests.sh
+RUN chmod 755 /run_tests.sh
+
+USER postgres
+WORKDIR /pg/testdir
+ENTRYPOINT /run_tests.sh

run_tests.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+set -ux
+
+# global exports
+export PGPORT=55435
+
+# build extension
+make install
+
+# initialize database
+initdb -D $PGDATA
+
+# start cluster
+pg_ctl start -l /tmp/postgres.log -w -o "-p $PGPORT"
+
+# something's wrong, exit now!
+[[ $? -ne 0 ]] && cat /tmp/postgres.log && exit 1;
+
+# run regression tests
+export PG_REGRESS_DIFF_OPTS="-w -U3" # for alpine's diff (BusyBox)
+make installcheck
+
+# show diff if needed and exit if something's wrong
+[[ $? -ne 0 ]] && { [[ -f regression.diffs ]] && cat regression.diffs ; exit 1 ; }
+
+set +ux

test/expected/parallel_test.out

@@ -18,8 +18,9 @@ SELECT COUNT(*) FROM parallel_test WHERE b1 = '1ftese';
          ->  Partial Aggregate
                Output: PARTIAL count(*)
                ->  Parallel Seq Scan on public.parallel_test
+                     Output: i, b1, b2
                      Filter: (parallel_test.b1 = '1ftese'::base36)
-(9 rows)
+(10 rows)
 
 EXPLAIN (costs off,verbose)
 SELECT COUNT(*) FROM parallel_test WHERE b2 = '1ftese';
@@ -33,8 +34,9 @@ SELECT COUNT(*) FROM parallel_test WHERE b2 = '1ftese';
          ->  Partial Aggregate
                Output: PARTIAL count(*)
                ->  Parallel Seq Scan on public.parallel_test
+                     Output: i, b1, b2
                      Filter: (parallel_test.b2 = '1ftese'::bigbase36)
-(9 rows)
+(10 rows)
 
 EXPLAIN (costs off,verbose)
 SELECT b1, COUNT(*) FROM parallel_test GROUP BY 1;
@@ -43,17 +45,17 @@ SELECT b1, COUNT(*) FROM parallel_test GROUP BY 1;
  Finalize GroupAggregate
    Output: b1, count(*)
    Group Key: parallel_test.b1
-   ->  Sort
+   ->  Gather Merge
          Output: b1, (PARTIAL count(*))
-         Sort Key: parallel_test.b1
-         ->  Gather
+         Workers Planned: 4
+         ->  Sort
                Output: b1, (PARTIAL count(*))
-               Workers Planned: 4
+               Sort Key: parallel_test.b1
                ->  Partial HashAggregate
                      Output: b1, PARTIAL count(*)
                      Group Key: parallel_test.b1
                      ->  Parallel Seq Scan on public.parallel_test
-                           Output: b1
+                           Output: i, b1, b2
 (14 rows)
 
 ROLLBACK;