119 lines
4.3 KiB
YAML
119 lines
4.3 KiB
YAML
# Keeps GitHub Actions cache storage from filling up.
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#
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# Two complementary triggers:
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#
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# 1. Weekly sweep — delete every cache older than 14 days. Catches the slow
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# drift from old branches and stale entries that nothing references.
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# 2. PR-close sweep — when a pull request is merged or closed, delete every
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# cache scoped to that PR's branch. Most caches are short-lived per-PR
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# buildx scopes; without this they linger for the full retention window
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# eating quota for nothing.
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#
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# Storage quota on davidmonterocrespo24's plan is 0.5 GB. A multi-stage Docker
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# build with mode=min cache can sit around 200-400 MB so two stale PR caches
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# are enough to push us over.
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name: Actions cache cleanup
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on:
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schedule:
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# Sundays at 04:00 UTC — well outside CI peak hours.
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- cron: '0 4 * * 0'
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pull_request:
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types: [closed]
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workflow_dispatch: {}
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jobs:
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weekly-sweep:
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if: github.event_name != 'pull_request'
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runs-on: ubuntu-latest
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permissions:
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actions: write
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steps:
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- name: Delete caches older than 14 days
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uses: actions/github-script@v7
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with:
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script: |
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const cutoffMs = Date.now() - 14 * 24 * 60 * 60 * 1000;
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let page = 1;
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let deleted = 0;
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let kept = 0;
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let bytesFreed = 0;
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while (true) {
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const { data } = await github.rest.actions.getActionsCacheList({
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owner: context.repo.owner,
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repo: context.repo.repo,
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per_page: 100,
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page,
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});
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if (!data.actions_caches.length) break;
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for (const cache of data.actions_caches) {
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const created = new Date(cache.created_at).getTime();
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if (created < cutoffMs) {
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console.log(
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`delete ${cache.id} ${(cache.size_in_bytes / 1024 / 1024).toFixed(1)} MB ${cache.ref} ${cache.key}`,
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);
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await github.rest.actions.deleteActionsCacheById({
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owner: context.repo.owner,
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repo: context.repo.repo,
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cache_id: cache.id,
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});
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deleted += 1;
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bytesFreed += cache.size_in_bytes;
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} else {
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kept += 1;
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}
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}
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if (data.actions_caches.length < 100) break;
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page += 1;
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}
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console.log(
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`summary: deleted=${deleted} kept=${kept} freed=${(bytesFreed / 1024 / 1024).toFixed(1)} MB`,
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);
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pr-close-sweep:
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if: github.event_name == 'pull_request'
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runs-on: ubuntu-latest
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permissions:
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actions: write
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steps:
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- name: Delete caches scoped to the closed PR's branch
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uses: actions/github-script@v7
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env:
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PR_REF: refs/pull/${{ github.event.pull_request.number }}/merge
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BRANCH_REF: refs/heads/${{ github.event.pull_request.head.ref }}
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with:
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script: |
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const refs = [process.env.PR_REF, process.env.BRANCH_REF];
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let deleted = 0;
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let bytesFreed = 0;
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for (const ref of refs) {
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let page = 1;
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while (true) {
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const { data } = await github.rest.actions.getActionsCacheList({
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owner: context.repo.owner,
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repo: context.repo.repo,
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ref,
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per_page: 100,
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page,
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});
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if (!data.actions_caches.length) break;
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for (const cache of data.actions_caches) {
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console.log(
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`delete ${cache.id} ${(cache.size_in_bytes / 1024 / 1024).toFixed(1)} MB ${cache.ref} ${cache.key}`,
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);
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await github.rest.actions.deleteActionsCacheById({
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owner: context.repo.owner,
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repo: context.repo.repo,
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cache_id: cache.id,
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});
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deleted += 1;
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bytesFreed += cache.size_in_bytes;
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}
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if (data.actions_caches.length < 100) break;
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page += 1;
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}
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}
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console.log(
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`pr-close summary: deleted=${deleted} freed=${(bytesFreed / 1024 / 1024).toFixed(1)} MB`,
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);
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