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ci: add a workflow to test custom MSYS2 runtimes
Every once in a while it is necessary to verify that a given patch to the MSYS2 runtime does not regress on passing the Git test suite. To verify this, let's reuse what `setup-git-for-windows-sdk` uses in Git's very own CI: - determine the latest successful `ci-artifacts` workflow run in git-for-windows/git-sdk-64 - download its Git files and build artifacts - download its minimal-sdk - download a specified msys2-runtime build's artifacts and overwrite the corresponding files in the minimal-sdk - run the test suite and the assorted validations just like the `ci-artifacts` workflow (from which these jobs are copied) Signed-off-by: Johannes Schindelin <[email protected]>
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‎.github/workflows/test-msys2-runtime.yml‎

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name: test-msys2-runtime
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run-name: Test a specific MSYS2 runtime version
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on:
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workflow_dispatch:
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inputs:
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msys2-runtime-artifacts-url:
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# e.g. https://github.com/msys2/msys2-runtime/actions/runs/7865269712/artifacts/1236989688
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description: The URL to the artifacts of an msys2-runtime build
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type: string
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env:
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LC_CTYPE: C.UTF-8
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MSYS2_RUNTIME_ARTIFACT_URL: ${{ inputs.msys2-runtime-artifacts-url }}
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G4W_SDK_REPO: git-for-windows/git-sdk-64
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jobs:
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minimal-sdk-artifact:
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runs-on: windows-latest
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outputs:
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git-artifacts-extract-location: ${{ steps.git-artifacts-extract-location.outputs.result }}
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steps:
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- name: get latest successful ci-artifacts run
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id: ci-artifacts-run-id
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uses: actions/github-script@v7
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with:
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script: |
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const [ owner, repo ] = process.env.G4W_SDK_REPO.split('/')
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const info = await github.rest.actions.listWorkflowRuns({
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owner,
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repo,
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workflow_id: 938271, // ci-artifacts.yml
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status: 'success',
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per_page: 1
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})
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return info.data.workflow_runs[0].id
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- name: get the ci-artifacts build's artifacts
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shell: bash
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run: |
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run_id=${{ steps.ci-artifacts-run-id.outputs.result }} &&
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curl -H "Authorization: token ${{secrets.GITHUB_TOKEN}}" \
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-L https://api.github.com/repos/$G4W_SDK_REPO/actions/runs/$run_id/artifacts |
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jq -r '.artifacts[] | [.name, .archive_download_url] | @tsv' |
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tr -d '\r' |
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while read name url
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do
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echo "$name"
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curl -H "Authorization: token ${{secrets.GITHUB_TOKEN}}" \
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-#sLo /tmp/"$name".zip "$url" &&
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unzip -qo /tmp/"$name".zip ||
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exit $?
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done
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ls -la
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- name: overwrite MSYS2 runtime with the msys2-runtime build's artifacts
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shell: bash
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run: |
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set -x &&
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case "$MSYS2_RUNTIME_ARTIFACT_URL" in
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https://github.com/*/actions/runs/[0-9]*/artifacts/[0-9]*)
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MSYS2_RUNTIME_ARTIFACT_URL="$(echo "$MSYS2_RUNTIME_ARTIFACT_URL" |
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sed 's|^\(https://\)\(github.com/\)\(.*/actions/\)runs/[0-9]*/\(artifacts/[0-9]*\)$|\1api.\2repos/\3\4/zip|')"
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;;
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esac
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curl -H "Authorization: token ${{secrets.GITHUB_TOKEN}}" \
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-fLo msys2-runtime.zip "$MSYS2_RUNTIME_ARTIFACT_URL" &&
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mkdir minimal-sdk &&
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cd minimal-sdk &&
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tar xzf ../git-sdk-x86_64-minimal.tar.gz &&
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unzip -qo ../msys2-runtime.zip &&
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tar cvf - * .[0-9A-Za-z]* | gzip -1 >../git-sdk-x86_64-minimal.tar.gz
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- name: upload minimal-sdk artifact
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uses: actions/upload-artifact@v4
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with:
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name: minimal-sdk
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path: git-sdk-x86_64-minimal.tar.gz
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- name: run `uname`
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run: minimal-sdk\usr\bin\uname.exe -a
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- name: determine where `git-artifacts` want to be extracted
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id: git-artifacts-extract-location
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shell: bash
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run: |
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echo "result=$(tar Oxf git-artifacts.tar.gz git/bin-wrappers/git |
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sed -n 's|^GIT_EXEC_PATH='\''\(.*\)/git'\''$|\1|p')" >>$GITHUB_OUTPUT
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- name: upload git artifacts for testing
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uses: actions/upload-artifact@v4
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with:
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name: git-artifacts
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path: git-artifacts.tar.gz
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test-minimal-sdk:
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runs-on: windows-latest
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needs: [minimal-sdk-artifact]
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strategy:
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matrix:
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# 0..16 permuted according to the matrix builds' timings as of git/git@9fadedd63
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nr: [9, 6, 13, 0, 8, 5, 2, 16, 15, 11, 10, 1, 7, 3, 14, 12, 4]
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fail-fast: false
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steps:
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- name: download minimal-sdk artifact
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uses: actions/download-artifact@v4
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with:
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name: minimal-sdk
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path: ${{github.workspace}}
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- name: uncompress minimal-sdk
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shell: bash
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run: |
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mkdir -p minimal-sdk &&
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tar -C minimal-sdk -xzf git-sdk-x86_64-minimal.tar.gz &&
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cygpath -aw minimal-sdk/usr/bin >>$GITHUB_PATH
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- name: download git artifacts
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uses: actions/download-artifact@v4
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with:
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name: git-artifacts
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path: ${{github.workspace}}
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- name: uncompress git-artifacts
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shell: bash
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env:
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GIT_ARTIFACTS_EXTRACT_LOCATION: ${{ needs.minimal-sdk-artifact.outputs.git-artifacts-extract-location }}
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run: |
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mkdir -p "$GIT_ARTIFACTS_EXTRACT_LOCATION" &&
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tar -C "$GIT_ARTIFACTS_EXTRACT_LOCATION" -xzf git-artifacts.tar.gz
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- name: test
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shell: bash
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run: |
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set -x
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. /etc/profile
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test "$(cygpath -aw /)" = "${{github.workspace}}\minimal-sdk" || exit 1
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cd "$GIT_ARTIFACTS_EXTRACT_LOCATION"/git/t &&
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make T="$(ls -S t[0-9]*.sh | awk '!((NR+${{matrix.nr}})%17)' | tr '\n' \ )" prove || {
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for d in trash*
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do
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t=${d#trash directory.}
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echo ===========================
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echo Failed: $t.sh
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cat test-results/$t.out
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done
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exit 1
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}
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env:
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GIT_ARTIFACTS_EXTRACT_LOCATION: ${{ needs.minimal-sdk-artifact.outputs.git-artifacts-extract-location }}
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PATH: ${{github.workspace}}\minimal-sdk\mingw64\bin;${{github.workspace}}\minimal-sdk\usr\bin;${{github.workspace}}\minimal-sdk\usr\bin\core_perl;C:\Windows\system32;C:\Windows;C:\Windows\system32\wbem
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GIT_TEST_OPTS: --verbose-log -x --no-chain-lint
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GIT_PROVE_OPTS: --timer --jobs 8
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NO_SVN_TESTS: 1
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assorted-validations:
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runs-on: windows-latest
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needs: [minimal-sdk-artifact]
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steps:
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- name: download minimal-sdk artifact
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uses: actions/download-artifact@v4
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with:
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name: minimal-sdk
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path: ${{github.workspace}}
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- name: uncompress minimal-sdk
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shell: bash
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run: |
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mkdir -p minimal-sdk &&
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tar -C minimal-sdk -xzf git-sdk-x86_64-minimal.tar.gz &&
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cygpath -aw minimal-sdk/usr/bin >>$GITHUB_PATH
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- name: run some tests
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shell: bash
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env:
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PATH: ${{github.workspace}}\minimal-sdk\mingw64\bin;${{github.workspace}}\minimal-sdk\usr\bin;C:\Windows\system32;C:\Windows;C:\Windows\system32\wbem
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run: |
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set -x
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. /etc/profile
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# cygpath works
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test "$(cygpath -aw /)" = "${{github.workspace}}\minimal-sdk" || exit 1
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# comes with GCC and can compile a DLL
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test "$(type -p gcc)" = "/mingw64/bin/gcc" || exit 1
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cat >dll.c <<-\EOF &&
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__attribute__((dllexport)) int increment(int i)
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{
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return i + 1;
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}
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EOF
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gcc -Wall -g -O2 -shared -o sample.dll dll.c || exit 1
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ls -la
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# stat works
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test "stat is /usr/bin/stat" = "$(type stat)" || exit 1
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stat /usr/bin/stat.exe || exit 1
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# unzip works
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test "unzip is /usr/bin/unzip" = "$(type unzip)" || exit 1
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git init unzip-test &&
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echo TEST >unzip-test/README &&
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git -C unzip-test add -A &&
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git -C unzip-test -c user.name=A -c [email protected] commit -m 'Testing, testing...' &&
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git --git-dir=unzip-test/.git archive -o test.zip HEAD &&
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unzip -v test.zip >unzip-test.out &&
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cat unzip-test.out &&
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test "grep is /usr/bin/grep" = "$(type grep)" || exit 1
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grep README unzip-test.out

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