For the Windows msys2 CI job we install many packages using pacman and use the GitLab cache to preserve the pacman cache across CI runs. While metadata still needs downloading, this avoids pacman re-downloading packages from msys2 if they have not changed.
The problem is that pacman never automatically purges anything from its package cache. Thus the GitLab cache is growing without bound and packing/unpacking the cache is consuming an increasing amount of time in the CI job. If we run 'pacman -Sc' /after/ installing our desired package set, it will purge any cached downloaded packages that are not matching any installed package. This will (currently) cap the pacman download cache at approx 256 MB. Signed-off-by: Daniel P. Berrangé <[email protected]> --- .gitlab-ci.d/windows.yml | 1 + 1 file changed, 1 insertion(+) See a test job with this change, plus a find across the msys pacman cache, showing the cleanup effects.... Before cleanup: https://gitlab.com/berrange/qemu/-/jobs/11679136531#L34 After cleanup: https://gitlab.com/berrange/qemu/-/jobs/11679136531#L1126 diff --git a/.gitlab-ci.d/windows.yml b/.gitlab-ci.d/windows.yml index 1e6a01bd9a..6e1135d8b8 100644 --- a/.gitlab-ci.d/windows.yml +++ b/.gitlab-ci.d/windows.yml @@ -87,6 +87,7 @@ msys2-64bit: mingw-w64-x86_64-pkgconf mingw-w64-x86_64-python mingw-w64-x86_64-zstd" + - .\msys64\usr\bin\bash -lc "pacman -Sc --noconfirm" - Write-Output "Running build at $(Get-Date -Format u)" - $env:JOBS = $(.\msys64\usr\bin\bash -lc nproc) - $env:CHERE_INVOKING = 'yes' # Preserve the current working directory -- 2.50.1
