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Keep sccache server alive during long jobs

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Eric X. Liu
2026-05-05 20:27:40 -07:00
parent f71948857f
commit 791d065c4c
2 changed files with 4 additions and 0 deletions
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1
.gitea/actions/rust-cache/action.yml
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@@ -97,6 +97,7 @@ runs:
echo "enabled=true" >> "$GITHUB_OUTPUT" echo "enabled=true" >> "$GITHUB_OUTPUT"
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV" echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
echo "SCCACHE_IGNORE_SERVER_IO_ERROR=1" >> "$GITHUB_ENV" echo "SCCACHE_IGNORE_SERVER_IO_ERROR=1" >> "$GITHUB_ENV"
echo "SCCACHE_IDLE_TIMEOUT=3600" >> "$GITHUB_ENV"
echo "SCCACHE_LOG=${SCCACHE_LOG:-warn}" >> "$GITHUB_ENV" echo "SCCACHE_LOG=${SCCACHE_LOG:-warn}" >> "$GITHUB_ENV"
if [ -n '${{ inputs.sccache-bucket }}' ]; then if [ -n '${{ inputs.sccache-bucket }}' ]; then
repo="${GITHUB_REPOSITORY:-unknown/repository}" repo="${GITHUB_REPOSITORY:-unknown/repository}"

3
README.md
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@@ -68,4 +68,7 @@ Omit `sccache-bucket` to use the runner-local sccache cache:
variables from workflow secrets. variables from workflow secrets.
- `SCCACHE_IGNORE_SERVER_IO_ERROR=1` is set so a cache outage falls back to - `SCCACHE_IGNORE_SERVER_IO_ERROR=1` is set so a cache outage falls back to
local compilation instead of failing the build. local compilation instead of failing the build.
- `SCCACHE_IDLE_TIMEOUT=3600` keeps the server alive across long build/test
steps, which matters when the setup step has S3 credentials scoped only to
that step.
- Add `sccache --show-stats` after build/test steps to inspect cache hit rates. - Add `sccache --show-stats` after build/test steps to inspect cache hit rates.