From 98ff88bda6caad9155f515ef1ded882ba8605dd6 Mon Sep 17 00:00:00 2001
From: Jordan Petridis <jordan@centricular.com>
Date: Tue, 5 Dec 2023 12:12:35 +0200
Subject: [PATCH] ci: Pass FDO_CI_CONCURRENT to meson compile

Limit the compile jobs to what the runners expect.

Related to gstreamer/gstreamer#2434

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5763>
---
 .gitlab-ci.yml      | 8 ++++----
 ci/scripts/build.sh | 7 ++++++-
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 913475b114..f5a4a43591 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -446,7 +446,7 @@ build vs2022 amd64:
   script:
     - !reference [".build windows", "script"]
     - meson setup --vsenv build $env:MESON_ARGS
-    - meson compile -C build
+    - meson compile -C build --jobs $env:FDO_CI_CONCURRENT
     - .\gst-env.py gst-inspect-1.0.exe --version
     - .\gst-env.py gst-inspect-1.0.exe
     - mkdir destdir
@@ -462,7 +462,7 @@ build vs2022 amd64 full-static:
     - !reference [".build windows", "script"]
     - echo $env:MESON_ARGS
     - cmd.exe /C "meson setup --vsenv build --default-library=static $env:MESON_ARGS"
-    - meson compile -C build
+    - meson compile -C build --jobs $env:FDO_CI_CONCURRENT
     - .\gst-env.py gst-inspect-1.0.exe --version
     - .\gst-env.py gst-inspect-1.0.exe
   variables:
@@ -482,7 +482,7 @@ build vs2022 amd64 full-static:
     - echo $env:MESON_CROSS_ARGS
     - cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=$env:ARCH &&
         meson setup build $env:MESON_ARGS $env:MESON_CROSS_ARGS &&
-        meson compile -C build "
+        meson compile -C build --jobs $env:FDO_CI_CONCURRENT"
 
 build vs2022 x86:
   extends: '.build windows cross'
@@ -526,7 +526,7 @@ build msys2:
     - $env:MESON_ARGS = $env:MESON_ARGS.replace('-Dgst-plugins-bad:d3d11-wgc=enabled','') + ' -Dpython=disabled -Dintrospection=disabled'
     # Configure MSYS2 to use the UCRT64 environment, start in the same directory
     # and inherit PATH
-    - C:\msys64\msys2_shell.cmd -ucrt64 -defterm -no-start -here -use-full-path -lc "meson setup build $env:MESON_ARGS && meson compile -C build"
+    - C:\msys64\msys2_shell.cmd -ucrt64 -defterm -no-start -here -use-full-path -lc "meson setup build $env:MESON_ARGS && meson compile -C build --jobs $env:FDO_CI_CONCURRENT"
 
 build macos:
   extends:
diff --git a/ci/scripts/build.sh b/ci/scripts/build.sh
index 8d4864494d..bd62a0862b 100755
--- a/ci/scripts/build.sh
+++ b/ci/scripts/build.sh
@@ -15,6 +15,11 @@ export RUSTUP_HOME="/usr/local/rustup"
 export CARGO_HOME="/usr/local/cargo"
 export PATH="/usr/local/cargo/bin:$PATH"
 
+# nproc works on linux
+# sysctl for macos
+_jobs=$(nproc || sysctl -n hw.ncpu)
+jobs="${FDO_CI_CONCURRENT:-$_jobs}"
+
 date -R
 ci/scripts/handle-subprojects-cache.py --cache-dir /subprojects subprojects/
 
@@ -35,7 +40,7 @@ then
 fi
 
 date -R
-meson compile -C build/
+meson compile -C build/ --jobs "$jobs"
 date -R
 
 if command -v ccache