Files
Stirling-PDF/.github/workflows
Ludy 6376d1ff8b ci: share Docker base image across test-build matrix (#7584)
# Description of Changes

This PR decouples the Docker base-image preparation from the embedded
Docker image matrix builds in `.github/workflows/test-build-docker.yml`.

- Added a dedicated `prepare-base-image` job that runs once when a pull
request changes the Docker base image.
- Builds `stirling-pdf-base:pr-test` once for `linux/amd64` instead of
rebuilding the same image independently in every matrix job.
- Exports the prepared image with `docker save`, compresses it, and
uploads it as a short-lived GitHub Actions artifact.
- Added a dependency from `test-build-docker-images` to
`prepare-base-image`, while still allowing the matrix job to run when
base-image preparation is skipped.
- Each matrix entry downloads and loads the prepared Docker image when
`docker-base-changed` is enabled.
- Removed the previous per-matrix `Build base image locally` step.
- Keeps the prepared image available to the embedded Docker builds
through the local Docker daemon.

The change was made to eliminate redundant base-image builds across the
Docker test matrix. Previously, pull requests modifying `docker/base`
caused each matrix entry to build the identical base image independently
and in parallel. Preparing the image once reduces duplicated CI work,
improves consistency between matrix entries, and should reduce CI
resource usage and execution time for Docker-related pull requests.

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## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have run `task check` to verify linters, typechecks, and tests
pass
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#7-testing)
for more details.
2026-08-20 19:43:33 +00:00
..