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ci/cleanup_caches: prune setup-msys2 package caches

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setup-msys2 saves the pacman package cache under a key ending in a hash
of its contents. So with each update it saves more caches, what's more
important it saves it per each PR ref. We don't want that. Keep only the
msys2 cache on main branch and only the latest one per each
configuration. If PR saves new one, it will be dropped, we prefer master
branch case that can be used by all PR, rather then per PR cache of
this. The few packages that will be refetched are ok.

This change is an atempt to keep our cache under 10GB limit, to avoid
evicting more important ccache caches.
This commit is contained in:
Kacper Michajłow
2026-07-31 17:58:16 +02:00
parent 612bf5b6e8
commit 55146ecd14
1 changed files with 21 additions and 10 deletions
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.github/workflows/cleanup_caches.yml
+21 -10
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@@ -27,19 +27,29 @@ jobs:
'{($pr): $state}'
done | jq -s 'add // {}' > prs.json
jq -r --slurpfile prs prs.json '
jq -r --slurpfile prs prs.json --arg default "$DEFAULT_REF" '
$prs[0] as $state |
[ .[] | select(.key | startswith("x86_64-w64-mingw32-") or
startswith("i686-w64-mingw32-") or
startswith("aarch64-pc-windows-msvc-") or
startswith("x86_64-pc-windows-msvc-"))
| . + { group: (.key | sub("-[0-9]+$"; "")),
pr: (.ref | if test("^refs/pull/[0-9]+/merge$")
then split("/")[2] else null end) } ] as $all
# Group caches by kind, dropping the timestamp or content hash
# that every save appends to the key.
def family: if startswith("msys2-") then "msys2"
elif test("-[0-9]+$") then "ccache"
else "other" end;
def group: if family == "msys2" then sub("-(files|state):.*$"; "")
else sub("-[0-9]+$"; "") end;
# Caches of merged or closed pull requests.
| ( $all | map(select(.pr != null and $state[.pr] != "OPEN")) ) as $dead
[ .[] | . + { family: (.key | family),
group: (.key | group),
pr: (.ref | if test("^refs/pull/[0-9]+/merge$")
then split("/")[2] else null end) } ]
| map(select(.family != "other")) as $all
# Caches of merged or closed pull requests, and msys2 caches
# outside the default branch, which every ref restores from.
| ( $all | map(select(
(.pr != null and $state[.pr] != "OPEN") or
(.family == "msys2" and .ref != $default)
)) ) as $dead
# Of the rest only the newest cache of each kind per ref is used.
| ( ($all - $dead) | group_by([.ref, .group]) | map(.[1:]) | add // [] ) as $superseded
@@ -53,3 +63,4 @@ jobs:
env:
GH_REPO: ${{ github.repository }}
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
DEFAULT_REF: refs/heads/${{ github.event.repository.default_branch }}