Build only changed docker directories in CI#70
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luislavena merged 1 commit intomainfrom Jan 18, 2026
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Previously, every push triggered builds for all Crystal versions even when only one version's Dockerfile changed. This wasted CI resources and slowed down feedback. The workflow now detects which docker directories have actual changes and generates a build matrix dynamically from versions.json. When no docker files change, the build job is skipped entirely. Manual builds remain possible via workflow_dispatch, allowing specific versions or all versions to be built on demand.
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Previously, every push triggered builds for all Crystal versions even when only one version's Dockerfile changed. This wasted CI resources and slowed down feedback.
The workflow now detects which docker directories have actual changes and generates a build matrix dynamically from versions.json. When no docker files change, the build job is skipped entirely.
Manual builds remain possible via workflow_dispatch, allowing specific versions or all versions to be built on demand.