name: ci-artifacts

on:
  push:
    branches:
      - main
  pull_request:

# For the continuous `ci-artifacts` release
permissions:
  contents: write

env:
  LC_CTYPE: C.UTF-8

jobs:
  minimal-sdk-artifact:
    if: github.repository_owner == 'git-for-windows'
    runs-on: [Windows, ARM64]
    steps:
      - name: clone git-sdk-arm64
        run: |
          git init --bare git-sdk-arm64.git &&
          git --git-dir=git-sdk-arm64.git remote add origin /~https://github.com/${{github.repository}} &&
          git --git-dir=git-sdk-arm64.git config remote.origin.promisor true &&
          git --git-dir=git-sdk-arm64.git config remote.origin.partialCloneFilter blob:none &&
          git --git-dir=git-sdk-arm64.git fetch --depth=1 origin ${{github.sha}} &&
          git --git-dir=git-sdk-arm64.git update-ref --no-deref HEAD ${{github.sha}}
      - name: clone build-extra
        run: git clone --depth=1 --single-branch -b main /~https://github.com/git-for-windows/build-extra
      - name: build git-sdk-arm64-minimal-sdk
        shell: bash
        run: |
          sh -x ./build-extra/please.sh create-sdk-artifact --sdk=git-sdk-arm64.git minimal-sdk &&
          cygpath -aw minimal-sdk/usr/bin >>$GITHUB_PATH
      - name: compress artifact
        shell: bash
        run: mkdir artifacts && (cd minimal-sdk && tar cvf - * .[0-9A-Za-z]*) | gzip -1 >artifacts/git-sdk-aarch64-minimal.tar.gz
      - name: create zip and 7z SFX variants of the minimal SDK
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        shell: bash
        run: |
          for path in clangarm64/bin/7z.exe clangarm64/bin/7z.dll clangarm64/lib/7zip/7zCon.sfx clangarm64/bin/libc++.dll
          do
            git --git-dir=git-sdk-arm64.git show HEAD:$path >${path##*/}
          done &&
          (cd minimal-sdk && ../7z.exe a -mmt=on -mx9 ../artifacts/git-sdk-aarch64-minimal.zip * .?*) &&
          (cd minimal-sdk && ../7z.exe a -t7z -mmt=on -m0=lzma -mqs -mlc=8 -mx=9 -md=256M -mfb=273 -ms=256M -sfx../7zCon.sfx \
            ../artifacts/git-sdk-aarch64-minimal.7z.exe * .?*)
      - name: run some tests
        shell: bash
        run: |
          set -x
          . /etc/profile

          # cygpath works
          test "$(cygpath -aw /)" = "${{github.workspace}}\minimal-sdk" || exit 1

          # comes with Clang and can compile a DLL
          test "$(type -p clang)" = "/clangarm64/bin/clang" || exit 1
          cat >dll.c <<-\EOF &&
          __attribute__((dllexport)) int increment(int i)
          {
              return i + 1;
          }
          EOF

          clang -Wall -g -O2 -shared -o sample.dll dll.c || exit 1
          ls -la

          # stat works
          test "stat is /usr/bin/stat" = "$(type stat)" || exit 1
          stat /usr/bin/stat.exe || exit 1

          # unzip works
          test "unzip is /usr/bin/unzip" = "$(type unzip)" || exit 1
          git init unzip-test &&
          echo TEST >unzip-test/README &&
          git -C unzip-test add -A &&
          git -C unzip-test -c user.name=A -c user.email=b@c.d commit -m 'Testing, testing...' &&
          git --git-dir=unzip-test/.git archive -o test.zip HEAD &&
          unzip -v test.zip >unzip-test.out &&
          cat unzip-test.out &&
          test "grep is /usr/bin/grep" = "$(type grep)" || exit 1
          grep README unzip-test.out
      - name: publish release assets
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        uses: actions/github-script@v7
        with:
          script: |
            process.chdir('artifacts')
            const req = { owner: context.repo.owner, repo: context.repo.repo }
            // find or create the GitHub release named `ci-artifacts`
            const release = await (async () => {
              try {
                return await github.rest.repos.getReleaseByTag({ ...req, tag: 'ci-artifacts' });
              } catch (e) {
                if (e.status === 404) {
                  // create the `ci-artifacts` GitHub release based on the current revision
                  const workflowRunsURL = `${context.serverUrl}/${
                    process.env.GITHUB_WORKFLOW_REF.replace(/\/\.github\/workflows\/([^@]+).*/, '/actions/workflows/$1')
                  }`
                  return await github.rest.repos.createRelease({
                    ... req,
                    tag_name: 'ci-artifacts',
                    body: `Continuous release of \`ci-artifacts\`

            This release is automatically updated by the [ci-artifacts](${workflowRunsURL}) workflow.

            For technical reasons, allow up to a minute for release assets to be missing while they are updated.`,
                  });
                }
                throw e;
              }
            })()

            const fs = require('fs')
            for (const fileName of [
              'git-sdk-aarch64-minimal.tar.gz',
              'git-sdk-aarch64-minimal.zip',
              'git-sdk-aarch64-minimal.7z.exe',
            ]) {
              console.log(`Uploading ${fileName}`)
              const uploadReq = {
                ...req,
                release_id: release.data.id,
                name: fileName,
                headers: {
                  'content-length': (await fs.promises.stat(fileName)).size,
                },
                data: fs.createReadStream(fileName),
              }

              // if the asset does not yet exist, simply upload it
              const originalAsset = release.data.assets.filter(asset => asset.name === fileName).pop()
              if (!originalAsset) {
                const asset =  await github.rest.repos.uploadReleaseAsset(uploadReq)
                console.log(`Uploaded to ${asset.data.browser_download_url}`)
                continue
              }

              // otherwise upload it using a temporary file name,
              // then delete the old asset
              // and then rename the new asset;
              // this way, the asset is not missing for a long time
              const asset = await github.rest.repos.uploadReleaseAsset({ ...uploadReq, name: `tmp.${fileName}` })
              await github.rest.repos.deleteReleaseAsset({ ...req, asset_id: originalAsset.id })
              const updatedAsset =  await github.rest.repos.updateReleaseAsset({...req,
                asset_id: asset.data.id,
                name: fileName,
                label: fileName,
              })
              console.log(`Updated ${updatedAsset.data.browser_download_url}`)
            }

            await github.rest.git.updateRef({
              ...req,
              ref: 'tags/ci-artifacts',
              sha: process.env.GITHUB_SHA,
            })