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.

---

## 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
2026-07-24 09:37:10 +00:00
2026-08-13 14:09:25 +00:00
2026-07-11 12:48:53 +01:00
2026-03-25 11:00:40 +00:00
2026-07-17 10:16:06 +00:00
2026-03-25 11:00:40 +00:00

Stirling PDF logo

Stirling PDF - The Open-Source PDF Platform

Stirling PDF is a powerful, open-source PDF editing platform. Run it as a personal desktop app, in the browser, or deploy it on your own servers with a private API. Edit, sign, redact, convert, and automate PDFs without sending documents to external services.

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Stirling PDF - Dashboard

Key Capabilities

  • Everywhere you work - Desktop client, browser UI, and self-hosted server with a private API.
  • 50+ PDF tools - Edit, merge, split, sign, redact, convert, OCR, compress, and more.
  • Automation & workflows - No-code pipelines direct in UI with APIs to process millions of PDFs.
  • Enterprisegrade - SSO, auditing, and flexible onprem deployments.
  • Developer platform - REST APIs available for nearly all tools to integrate into your existing systems.
  • Global UI - Interface available in 40+ languages.

For a full feature list, see the docs: https://docs.stirlingpdf.com

Quick Start

docker run -p 8080:8080 docker.stirlingpdf.com/stirlingtools/stirling-pdf

Then open: http://localhost:8080

For full installation options (including desktop and Kubernetes), see our Documentation Guide.

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Contributing

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

This project uses Task as a unified command runner for all build, dev, and test commands. Run task dev to get started running the editor, run task to see the most common commands, or see the Developer Guide for full details.

For adding translations, see the Translation Guide.

License

Stirling PDF is open-core. See LICENSE for details.

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