Adding VersionStream for gitlab-pages-18.2

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[octo-sts]

🔄 Build Failed: Git Checkout Error

[git checkout] FAIL Expected commit 2deb326a0d99eef8523d7cb6037c94ef206aceba for v18.2.0, found 1a0d71daf5990e5d29de82d51d94e7832510aeab

Build Details

Category	Details
Build System	git
Failure Point	git checkout --quiet origin/tags/v18.2.0

Root Cause Analysis 🔍

The build expected a specific Git commit hash (2deb326a0d99eef8523d7cb6037c94ef206aceba) for tag v18.2.0, but found a different commit hash (1a0d71daf5990e5d29de82d51d94e7832510aeab) when checking out the repository. This indicates the tag reference in the build configuration doesn't match what's actually in the Git repository.

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🔍 Build failure fix suggestions

Found similar build failures that have been fixed in the past and analyzed them to suggest a fix:

Similar PRs with fixes

• Adding VersionStream for gitlab-runner-17.11 #51032
• Adding VersionStream for gitaly-17.10 #47615
• Improve Trino package #51354

Suggested Changes

File: gitlab-pages-18.2.yaml

• replace at line 28 (In the git-checkout step, expected-commit parameter)
  Original:

      expected-commit: 2deb326a0d99eef8523d7cb6037c94ef206aceba

Replacement:

      expected-commit: 1a0d71daf5990e5d29de82d51d94e7832510aeab

Content:

Update the expected commit hash to match the actual commit hash for tag v18.2.0

Click to expand fix analysis

Analysis

The pattern observed in the similar fixed build failures involves Git tag checkout issues where the expected commit hash doesn't match what's found in the repository. In all three examples, the problem was resolved by updating the expected-commit parameter in the git-checkout step to match the actual commit hash that the tag points to.

This is a common issue with Git tags that are annotated tags (tag objects) rather than lightweight tags (direct pointers to commits). When a repository uses annotated tags, the tag points to a tag object, which then points to a commit. The build system in these cases expects a direct commit hash, but the repository structure has an additional layer of indirection.

In each of the three example fixes, the developers updated the expected-commit parameter to use the correct commit hash that the tag actually references. They didn't change the tag itself, just updated the build configuration to expect the correct commit hash.

Click to expand fix explanation

Explanation

The build is failing because the Git tag v18.2.0 in the gitlab-pages repository is pointing to a different commit than what is specified in the build configuration. The error message indicates that the build expected commit 2deb326a0d99eef8523d7cb6037c94ef206aceba but found commit 1a0d71daf5990e5d29de82d51d94e7832510aeab instead.

This is a common situation when dealing with annotated Git tags. Annotated tags are Git objects that point to another object (typically a commit), and they contain additional metadata like the tagger's name, email, date, and a message. When the build system tries to check out a specific tag, it's actually getting the commit that the tag points to, not the tag object itself.

The solution is to update the expected-commit parameter in the Melange YAML file to match the actual commit hash (1a0d71daf5990e5d29de82d51d94e7832510aeab) that the tag v18.2.0 points to. This allows the build system to correctly verify the Git checkout operation without changing the tag itself.

This fix follows the pattern seen in all three example fixes where the expected-commit parameter was updated to match the actual commit hash referenced by the tag. This approach is simple, non-invasive, and directly addresses the root cause of the build failure.

Click to expand alternative approaches

Alternative Approaches

• Another approach would be to use a direct commit reference instead of a tag in the git-checkout step. This would bypass the tag indirection issue entirely, but would make the build less semantically clear and harder to maintain when updating to new versions.
• A third option would be to modify the git-checkout step to handle annotated tags differently, allowing it to verify the tag object instead of expecting a direct commit reference. However, this would require changes to the build infrastructure rather than a simple configuration update.

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