nealrichardson commented on a change in pull request #9383:
URL: https://github.com/apache/arrow/pull/9383#discussion_r567950168
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File path: .github/workflows/r.yml
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@@ -168,6 +168,22 @@ jobs:
cd r/tests
sed -i.bak -E -e 's/"arrow"/"arrow", reporter = "location"/'
testthat.R
rm -f testthat.R.bak
+ - name: Setup ccache
+ shell: bash
+ run: |
+ ci/scripts/ccache_setup.sh
+ echo "CCACHE_DIR=$(cygpath --absolute --windows ccache)" >>
$GITHUB_ENV
+ # We must enable actions/cache before r-lib/actions/setup-r to ensure
+ # using system tar instead of tar provided by Rtools.
+ # We can use tar provided by Rtools when we drop support for Rtools 3.5.
+ # Because Rtools 4.0 or later has zstd. actions/cache requires zstd
+ # when tar is GNU tar.
Review comment:
🤯
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