[PATCH 8/8] ci: use Meson's new `--slice` option

From: Patrick Steinhardt <ps@pks.im>
Date: Jul 3, 2025, 09:28 UTC
Message-ID: <20250703-b4-pks-meson-cleanups-v1-8-2804c2932abe@pks.im>
In-Reply-To: <20250703-b4-pks-meson-cleanups-v1-0-2804c2932abe@pks.im>

As executing our test suite is notoriously slow on Windows we use matrix jobs in our CI systems to slice up tests and run them via multiple jobs. On Meson this is done with a comparatively complex PowerShell invocation as Meson didn't yet have a native way to slice tests like this.

I have upstreamed a new `--slice` option [1] that addresses this use case though, which has been merged and released with Meson 1.8. Both GitLab and GitHub CI have Meson 1.8.2 available by now, so let's update the jobs to use that new option.

[1]: https://github.com/mesonbuild/meson/pull/14092

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 .github/workflows/main.yml | 2 +-
 .gitlab-ci.yml             | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7dbf9f7f123..f0f653bd853 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -298,7 +298,7 @@ jobs:
         path: build
     - name: Test
       shell: pwsh
-      run: meson test -C build --list | Select-Object -Skip 1 | Select-String .* | Group-Object -Property { $_.LineNumber % 10 } | Where-Object Name -EQ ${{ matrix.nr }} | ForEach-Object { meson test -C build --no-rebuild --print-errorlogs $_.Group }
+      run: meson test -C build --no-rebuild --print-errorlogs --slice ${{ matrix.nr }}/10
 
   regular:
     name: ${{matrix.vector.jobname}} (${{matrix.vector.pool}})
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bb6d5b976cd..af10ebb59a3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -178,7 +178,7 @@ test:msvc-meson:
     - job: "build:msvc-meson"
       artifacts: true
   script:
-    - meson test -C build --list | Select-Object -Skip 1 | Select-String .* | Group-Object -Property { $_.LineNumber % $Env:CI_NODE_TOTAL + 1 } | Where-Object Name -EQ $Env:CI_NODE_INDEX | ForEach-Object { meson test -C build --no-rebuild --print-errorlogs $_.Group; if (!$?) { exit $LASTEXITCODE } }
+    - meson test -C build --no-rebuild --print-errorlogs --slice $Env:CI_NODE_INDEX/$Env:CI_NODE_TOTAL
   parallel: 10
 
 test:fuzz-smoke-tests:

-- 
2.50.0.195.g74e6fc65d0.dirty