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Make sccache read-only outside main #1909

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Merged
ludfjig merged 1 commit into from
Oct 8, 2026
Merged

Make sccache read-only outside main #1909

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5 changes: 5 additions & 0 deletions .github/actions/setup-sccache/action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -12,3 +12,8 @@ runs:
run: |
echo "SCCACHE_GHA_ENABLED=true" >> "$GITHUB_ENV"
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
# Write the cache only on main. Other refs read it, since their
# entries serve only that ref and evict the ones main shares.
if [ "$GITHUB_REF" != "refs/heads/main" ]; then
echo "SCCACHE_GHA_RW_MODE=READ_ONLY" >> "$GITHUB_ENV"
fi
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