Make GitHub Actions Slack notification consistent

with Travis, rather than AppVeyor.

Formerly it was made similar to AppVeyor to provide some normal set of
CI failure notification. But for some reason people preferred a shorter
variant and introduced a1d606c079 and
d8d8015b93.

Instead of AppVeyor format, this commit chose Travis-like format to achieve
consistency and to include usual CI-failure information, while keeping
it one-liner for people who prefer short notifications.

Note that this shrinks the 40-char sha to 10-char, using the new feature
of k0kubun/action-slack@v2.0.0:
1c88a05dac

.github/workflows/macos.yml

@@ -57,12 +57,14 @@ jobs:
         if: matrix.test_task == 'test-bundled-gems' && !contains(github.event.head_commit.message, '[ci skip]')
       - name: Leaked Globals
         run: make -s leaked-globals
-      - uses: k0kubun/action-slack@v1.0.0
+      - uses: k0kubun/action-slack@v2.0.0
         with:
           payload: |
             {
               "attachments": [{
-                "text": "<https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks|${{ job.status }}: ${{ github.workflow }} / ${{ matrix.test_task }}> (<https://github.com/${{ github.repository }}/commit/${{ github.sha }}|${{ github.sha }}>)",
+                "text": "${{ job.status}}: <https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks|${{ github.workflow }} / ${{ matrix.test_task }}> " +
+                        "(<https://github.com/${{ github.repository }}/commit/${{ github.sha }}|" + "${{ github.sha }}".substring(0, 10) + ">) " +
+                        "of ${{ github.repository }}@" + "${{ github.ref }}".split('/').reverse()[0] + " by ${{ github.event.head_commit.committer.name }}",
                 "color": "danger"
               }]
             }

.github/workflows/ubuntu.yml

@@ -65,12 +65,14 @@ jobs:
         env:
           GITHUB_CONTEXT: ${{ toJson(github) }}
         if: failure() && github.event_name == 'push'
-      - uses: k0kubun/action-slack@v1.0.0
+      - uses: k0kubun/action-slack@v2.0.0
         with:
           payload: |
             {
               "attachments": [{
-                "text": "<https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks|${{ job.status }}: ${{ github.workflow }} / ${{ matrix.test_task }}> (<https://github.com/${{ github.repository }}/commit/${{ github.sha }}|${{ github.sha }}>)",
+                "text": "${{ job.status}}: <https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks|${{ github.workflow }} / ${{ matrix.test_task }}> " +
+                        "(<https://github.com/${{ github.repository }}/commit/${{ github.sha }}|" + "${{ github.sha }}".substring(0, 10) + ">) " +
+                        "of ${{ github.repository }}@" + "${{ github.ref }}".split('/').reverse()[0] + " by ${{ github.event.head_commit.committer.name }}",
                 "color": "danger"
               }]
             }

.github/workflows/windows.yml

@@ -54,12 +54,14 @@ jobs:
           call "C:\Program Files (x86)\Microsoft Visual Studio\${{ matrix.vs }}\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
           nmake ${{ matrix.test_task }}
         if: "!contains(github.event.head_commit.message, '[ci skip]')"
-      - uses: k0kubun/action-slack@v1.0.0
+      - uses: k0kubun/action-slack@v2.0.0
         with:
           payload: |
             {
               "attachments": [{
-                "text": "<https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks|${{ job.status }}: ${{ github.workflow }} / ${{ matrix.test_task }}> (<https://github.com/${{ github.repository }}/commit/${{ github.sha }}|${{ github.sha }}>)",
+                "text": "${{ job.status}}: <https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks|${{ github.workflow }} / ${{ matrix.test_task }}> " +
+                        "(<https://github.com/${{ github.repository }}/commit/${{ github.sha }}|" + "${{ github.sha }}".substring(0, 10) + ">) " +
+                        "of ${{ github.repository }}@" + "${{ github.ref }}".split('/').reverse()[0] + " by ${{ github.event.head_commit.committer.name }}",
                 "color": "danger"
               }]
             }