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feat(linter): propagate workflow:rules:variables: into job rule evaluation

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workflow:rules: can define variables: on matching rules (GitLab CI 15.0+).
These variables are now injected into the evaluation context before job
rules:if: expressions are evaluated, making patterns like:

  workflow:
    rules:
      - if: '$CI_COMMIT_BRANCH == "main"'
        variables:
          DEPLOY_TARGET: production
  deploy:
    rules:
      - if: '$DEPLOY_TARGET == "production"'

work correctly with glint check --branch main.

Changes:
- model.Rule: add Variables map[string]any field (yaml:"variables")
- cicontext.Context: add pinned map tracking which vars must not be
  overwritten; New() pins all shortcut and --var variables; add
  Inject(key, value) which writes only when key is not pinned
- cicontext.ExtractStringVars: shared helper that converts map[string]any
  variable blocks (plain string or {value:...} form) to map[string]string
- cicontext.EvalWorkflow: returns (bool, map[string]string) — the vars of
  the matching workflow rule alongside the runs/no-runs result
- cmd/glint/main.go: enrichContext() injects pipeline-level variable
  defaults then workflow-rule variables before printContext; applied in
  both cmdCheck and cmdGraph

Injection priority (highest wins):
  --var CLI overrides > --branch/--tag/--source shortcuts
  > workflow-rule variables > pipeline variables: defaults

Adds 15 unit tests (TestEvalWorkflow, TestContextInject,
TestExtractStringVars, TestWorkflowVarsJobEval) and a testdata fixture
(workflow_vars.yml) validated across four branch contexts.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
k3nny
2026-06-11 22:35:55 +02:00
parent a0e2582cf1
commit de6a526560
8 changed files with 402 additions and 24 deletions
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CHANGELOG.md
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@@ -9,6 +9,8 @@ This project uses [Semantic Versioning](https://semver.org).
### Added
- **`workflow:rules:variables:` now propagate to job rule evaluation** — when a `workflow:rules:` entry matches, any `variables:` it defines are injected into the evaluation context so job `rules:if:` expressions can reference them. Pipeline-level `variables:` are also available as defaults (lower priority). Variable priority order, highest first: `--var` CLI overrides → `--branch`/`--tag`/`--source` shortcuts → workflow-rule variables → pipeline-level variable defaults. This means `$DEPLOY_TARGET == "production"` in a job rule correctly evaluates when a workflow rule sets `DEPLOY_TARGET: production` for the matching branch. The `glint graph tree` command benefits from the same enrichment.
- **`rules:if:` expression evaluator improvements** — six correctness fixes to the GitLab CI expression parser:
- **Multi-line expressions** — newlines (`\n`, `\r`) are now treated as whitespace between tokens, so block-scalar `if:` values (e.g. `if: | ...`) and folded YAML scalars with `||`/`&&` on a continuation line are parsed correctly instead of falling back to permissive `true`.
- **`${VAR}` curly-brace variable syntax** — `${CI_COMMIT_BRANCH}` is now equivalent to `$CI_COMMIT_BRANCH` everywhere a value is expected.