CI: test safe cache on a first PR - #13

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doraemonmj wants to merge 1 commit into

support/test-first-pr-cache-basefrom

support/test-first-pr-cache-pr

doraemonmj commented Aug 13, 2026

Owner

Purpose

measure a brand-new PR restoring a compiler cache from its base branch
simulate a real compile miss for one macOS object
keep the PR read-only with respect to the shared cache

Isolation

fork-only temporary PR
does not modify or target the upstream repository
do not merge

Safety settings

actions/cache v5 restore-only on pull_request
cache save restricted to trusted push runs
compiler binary checked by content
ccache direct mode disabled
all five packaging modes retained


          CI: simulate a first-PR compile miss

c743dec

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