[RFC PATCH] gitlab-ci.yml: Speed up CI by using "meson test --no-rebuild"

[Thomas Huth]

Currently, our check-system-* jobs are recompiling the whole sources
again. This happens due to the fact that the jobs are checking out
the whole source tree and required submodules again, and only try
to use the "build" directory with the binaries and object files
as an artifact from the previous stage - which simply does not work
anymore (with the current version of meson). Due to some changed
time stamps, meson is always trying to rebuild the whole tree.

To fix this problem, use "meson test --no-rebuild" instead of
"make check" to avoid rebuilding all binaries every time. This
saves ca. 15 - 20 minutes of precious CI cycles in each run.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 Marked as "RFC" since I'm not quite sure whether "meson test" has
 the same test coverage as "make check"... Paolo?

 .gitlab-ci.yml | 41 ++++++++++++++++++++++-------------------
 1 file changed, 22 insertions(+), 19 deletions(-)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index de3a3d25b5..c9fb11c325 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -34,6 +34,19 @@ include:
         make -j"$JOBS" $MAKE_CHECK_ARGS ;
       fi
 
+.native_meson_test_job:
+  stage: test
+  image: $CI_REGISTRY_IMAGE/qemu/$IMAGE:latest
+  script:
+    - cd build
+    - touch *
+    - make git-submodule-update
+    - if [ -x ../meson/meson.py ]; then
+          ../meson/meson.py test --no-rebuild -t 5 $MESON_TEST_ARGS ;
+      else
+          meson test --no-rebuild -t 5 $MESON_TEST_ARGS ;
+      fi
+
 .native_test_job_template: &native_test_job_definition
   stage: test
   image: $CI_REGISTRY_IMAGE/qemu/$IMAGE:latest
@@ -83,17 +96,15 @@ build-system-alpine:
   artifacts:
     expire_in: 2 days
     paths:
-      - .git-submodule-status
       - build
 
 check-system-alpine:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-system-alpine
       artifacts: true
   variables:
     IMAGE: alpine
-    MAKE_CHECK_ARGS: check
 
 acceptance-system-alpine:
   <<: *native_test_job_definition
@@ -118,13 +129,12 @@ build-system-ubuntu:
       - build
 
 check-system-ubuntu:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-system-ubuntu
       artifacts: true
   variables:
     IMAGE: ubuntu2004
-    MAKE_CHECK_ARGS: check
 
 acceptance-system-ubuntu:
   <<: *native_test_job_definition
@@ -149,13 +159,12 @@ build-system-debian:
       - build
 
 check-system-debian:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-system-debian
       artifacts: true
   variables:
     IMAGE: debian-amd64
-    MAKE_CHECK_ARGS: check
 
 # No targets are built here, just tools, docs, and unit tests. This
 # also feeds into the eventual documentation deployment steps later
@@ -194,13 +203,12 @@ build-system-fedora:
       - build
 
 check-system-fedora:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-system-fedora
       artifacts: true
   variables:
     IMAGE: fedora
-    MAKE_CHECK_ARGS: check
 
 acceptance-system-fedora:
   <<: *native_test_job_definition
@@ -226,13 +234,12 @@ build-system-centos:
       - build
 
 check-system-centos:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-system-centos
       artifacts: true
   variables:
     IMAGE: centos8
-    MAKE_CHECK_ARGS: check
 
 acceptance-system-centos:
   <<: *native_test_job_definition
@@ -256,13 +263,12 @@ build-system-opensuse:
       - build
 
 check-system-opensuse:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-system-opensuse
       artifacts: true
   variables:
     IMAGE: opensuse-leap
-    MAKE_CHECK_ARGS: check
 
 acceptance-system-opensuse:
    <<: *native_test_job_definition
@@ -525,13 +531,12 @@ build-crypto-old-nettle:
       - build
 
 check-crypto-old-nettle:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-crypto-old-nettle
       artifacts: true
   variables:
     IMAGE: centos7
-    MAKE_CHECK_ARGS: check
 
 
 build-crypto-old-gcrypt:
@@ -546,13 +551,12 @@ build-crypto-old-gcrypt:
       - build
 
 check-crypto-old-gcrypt:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-crypto-old-gcrypt
       artifacts: true
   variables:
     IMAGE: centos7
-    MAKE_CHECK_ARGS: check
 
 
 build-crypto-only-gnutls:
@@ -567,13 +571,12 @@ build-crypto-only-gnutls:
       - build
 
 check-crypto-only-gnutls:
-  <<: *native_test_job_definition
+  extends: .native_meson_test_job
   needs:
     - job: build-crypto-only-gnutls
       artifacts: true
   variables:
     IMAGE: centos7
-    MAKE_CHECK_ARGS: check
 
 # We don't need to exercise every backend with every front-end
 build-trace-multi-user:
-- 
2.27.0