Render the templates for LTSS code streams but don't build them on OBS

This fixes #1087

.github/workflows/obs_build.yml

@@ -12,12 +12,20 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        no_build:
+          - false
         os_version:
-          - 6
           - 5
+          - 6
           - Tumbleweed
           - Basalt
 
+        include:
+          - os_version: 3
+            no_build: true
+          - os_version: 4
+            no_build: true
+
     steps:
       # we need all branches for the build checks
       - uses: actions/checkout@v4
@@ -82,7 +90,7 @@ jobs:
               --os-version ${{ matrix.os_version }} \
               --branch-name="${{ matrix.os_version }}-${{ github.event.pull_request.number }}" \
               -vvvv \
-              scratch_build \
+              ${{ matrix.no_build && "commit_state" || "scratch_build" }} \
                 --commit-message='Test build for #${{ github.event.pull_request.number }}' \
             | tee info
           if grep -q "No changes" info; then
@@ -103,8 +111,9 @@ jobs:
           issue-number: ${{ github.event.pull_request.number }}
           # !!! if you change the body, then you must adjust StagingBot.from_github_comment() !!!
           body: |
-            Created a staging project on OBS for ${{ matrix.os_version }}: [${{ env.PROJECT_NAME }}](${{ env.PROJECT_URL }})
+            Rendered the templates for ${{ matrix.os_version }}
             Changes pushed to branch [`${{ env.BRANCH_NAME }}`](https://github.com/SUSE/BCI-dockerfile-generator/tree/${{ env.BRANCH_NAME }}) as commit [`${{ env.DEPLOYMENT_COMMIT_HASH }}`](https://github.com/SUSE/BCI-dockerfile-generator/commit/${{ env.DEPLOYMENT_COMMIT_HASH }})
+            ${{ matrix.no_build || ('Created a staging project on OBS: [' + env.PROJECT_NAME + '](' + env.PROJECT_URL ')') }}
 
       - name: wait for the build to finish
         run: poetry run scratch-build-bot -vvvv wait
@@ -115,7 +124,7 @@ jobs:
 
       - name: Install crane to list images on the registry
         uses: imjasonh/setup-crane@v0.3
-        if: env.no_change != 'true'
+        if: ${{ (env.no_change != 'true') && (! matrix.no_build) }}
 
       - name: retrieve the build result
         run: |
@@ -147,10 +156,10 @@ jobs:
         env:
           OSC_PASSWORD: ${{ secrets.OSC_PASSWORD }}
           OSC_USER: "defolos"
-        if: env.no_change != 'true'
+        if: ${{ (env.no_change != 'true') && (! matrix.no_build) }}
 
       - name: report the finished build
-        if: env.no_change != 'true'
+        if: ${{ (env.no_change != 'true') && (! matrix.no_build) }}
         uses: peter-evans/create-or-update-comment@v4
         with:
           issue-number: ${{ github.event.pull_request.number }}
@@ -164,7 +173,7 @@ jobs:
         env:
           OSC_PASSWORD: ${{ secrets.OSC_PASSWORD }}
           OSC_USER: "defolos"
-        if: env.no_change != 'true'
+        if: ${{ (env.no_change != 'true') && (! matrix.no_build) }}
 
       - name: cleanup the branches if no functional changes were commited or the build was cancelled
         run: poetry run scratch-build-bot -vvvv -l cleanup

src/staging/bot.py

@@ -278,14 +278,19 @@ def from_github_comment(comment_text: str, osc_username: str) -> "StagingBot":
         if comment_text == "":
             raise ValueError("Received empty github comment, cannot create the bot")
         # comment_text looks like this:
-        # Created a staging project on OBS for 4: [home:defolos:BCI:Staging:SLE-15-SP4:sle15-sp4-HsmtR](url/to/proj)
+        #
+        # Rendered the templates for 6
         # Changes pushed to branch [`sle15-sp4-HsmtR`](url/to/branch)
+        # Created a staging project on OBS: [home:defolos:BCI:Staging:SLE-15-SP4:sle15-sp4-HsmtR](url/to/proj)
+        #
+        # The last line of the comment is only present if the bot created a
+        # build, otherwise it's missing
         lines = comment_text.strip().splitlines()
-        proj_line = lines[0]
-        CREATED_TEXT = "Created a staging project on OBS for "
-        if CREATED_TEXT not in proj_line:
+        branch_line = lines[0]
+        RENDERED_TEMPLATES_TEXT = "Rendered the templates for "
+        if RENDERED_TEMPLATES_TEXT not in branch_line:
             raise ValueError(f"Invalid first line in the comment: {comment_text}")
-        os_ver, prj_markdown_link = proj_line.replace(CREATED_TEXT, "").split(": ")
+        os_ver = branch_line.replace(RENDERED_TEMPLATES_TEXT, "").strip()
 
         CHANGES_TEXT = "Changes pushed to branch "
         branch_line = lines[1]
@@ -300,10 +305,18 @@ def from_github_comment(comment_text: str, osc_username: str) -> "StagingBot":
             osc_username=osc_username,
         )
 
-        assert (
-            bot.staging_project_name
-            == (prj := prj_markdown_link.split("]")[0].replace("[", ""))
-        ), f"Mismatch between the constructed project name ({bot.staging_project_name}) and the project name from the comment ({prj})"
+        # sanity check if we have created a project
+        if len(lines) > 2 and (proj_line := lines[2]):
+            prj_markdown_link = proj_line.replace(
+                "Created a staging project on OBS: ", ""
+            )
+            prj = prj_markdown_link.split("]")[0].replace("[", "")
+
+            if bot.staging_project_name != prj:
+                raise ValueError(
+                    f"Mismatch between the constructed project name ({bot.staging_project_name}) and the project name from the comment ({prj})"
+                )
+
         return bot
 
     @staticmethod
@@ -1773,7 +1786,14 @@ async def _create_staging_proj():
             coro = _create_staging_proj()
 
         elif action == "commit_state":
-            coro = bot.write_all_build_recipes_to_branch(args.commit_message[0])
+
+            async def _commit():
+                commit_or_None = await bot.write_all_build_recipes_to_branch(
+                    args.commit_message[0]
+                )
+                return commit_or_None or "No changes"
+
+            coro = _commit()
 
         elif action == "query_build_result":
 

tests/test_bot.py

@@ -47,32 +47,45 @@ async def test_load_from_env(
     "comment,bot",
     [
         (
-            """Created a staging project on OBS for 4: [home:defolos:BCI:Staging:SLE-15-SP4:sle15-sp4-AVeMj](https://build.opensuse.org/project/show/home:defolos:BCI:Staging:SLE-15-SP4:sle15-sp4-AVeMj)
-Changes pushed to branch [`sle15-sp4-AVeMj`](https://github.com/SUSE/BCI-dockerfile-generator/tree/sle15-sp4-AVeMj)""",
+            """Rendered the templates for 4
+Changes pushed to branch [`sle15-sp4-AVeMj`](https://github.com/SUSE/BCI-dockerfile-generator/tree/sle15-sp4-AVeMj)
+Created a staging project on OBS: [home:defolos:BCI:Staging:SLE-15-SP4:sle15-sp4-AVeMj](https://build.opensuse.org/project/show/home:defolos:BCI:Staging:SLE-15-SP4:sle15-sp4-AVeMj)""",
             StagingBot(
                 os_version=OsVersion.SP4,
                 branch_name="sle15-sp4-AVeMj",
                 osc_username=_osc_user,
             ),
         ),
         (
-            """Created a staging project on OBS for Tumbleweed: [home:defolos:BCI:Staging:Tumbleweed:tumbleweed-EqgiS](https://build.opensuse.org/project/show/home:defolos:BCI:Staging:Tumbleweed:tumbleweed-EqgiS)
-Changes pushed to branch [`tumbleweed-EqgiS`](https://github.com/SUSE/BCI-dockerfile-generator/tree/tumbleweed-EqgiS)""",
+            """Rendered the templates for Tumbleweed
+Changes pushed to branch [`tumbleweed-EqgiS`](https://github.com/SUSE/BCI-dockerfile-generator/tree/tumbleweed-EqgiS)
+Created a staging project on OBS: [home:defolos:BCI:Staging:Tumbleweed:tumbleweed-EqgiS](https://build.opensuse.org/project/show/home:defolos:BCI:Staging:Tumbleweed:tumbleweed-EqgiS)""",
             StagingBot(
                 os_version=OsVersion.TUMBLEWEED,
                 branch_name="tumbleweed-EqgiS",
                 osc_username=_osc_user,
             ),
         ),
         (
-            """Created a staging project on OBS for 3: [home:defolos:BCI:Staging:SLE-15-SP3:sle15-sp3-OZGYa](https://build.opensuse.org/project/show/home:defolos:BCI:Staging:SLE-15-SP3:sle15-sp3-OZGYa)
-Changes pushed to branch [`sle15-sp3-OZGYa`](https://github.com/SUSE/BCI-dockerfile-generator/tree/sle15-sp3-OZGYa)""",
+            """Rendered the templates for 3
+Changes pushed to branch [`sle15-sp3-OZGYa`](https://github.com/SUSE/BCI-dockerfile-generator/tree/sle15-sp3-OZGYa)
+Created a staging project on OBS: [home:defolos:BCI:Staging:SLE-15-SP3:sle15-sp3-OZGYa](https://build.opensuse.org/project/show/home:defolos:BCI:Staging:SLE-15-SP3:sle15-sp3-OZGYa)""",
             StagingBot(
                 os_version=OsVersion.SP3,
                 branch_name="sle15-sp3-OZGYa",
                 osc_username=_osc_user,
             ),
         ),
+        (
+            """Rendered the templates for 6
+Changes pushed to branch [`sle15-sp6-1337`](https://github.com/SUSE/BCI-dockerfile-generator/tree/sle15-sp6-1337)
+""",
+            StagingBot(
+                os_version=OsVersion.SP6,
+                branch_name="sle15-sp6-1337",
+                osc_username=_osc_user,
+            ),
+        ),
     ],
 )
 def test_from_github_comment(comment: str, bot: StagingBot):