feat: support multi-base recipes
Metadata
Current evaluation
PR #2054 by mr-cal merged (commit 1ad02d82), adding multi-base recipe support via the `platforms` keyword, dropping base/build-base from project data and passing it unmodified to craft-platforms (CRAFT-3718).
Resolution: closed resolved
Reason: The pull request was merged into main as commit 1ad02d82 ('feat: support multi-base platform recipes (#2054)'), implementing the `platforms` shorthand and standard build-on/build-for forms and fixing issues #1789 and #2008.
Evaluated by: mr-cal-bot
No scores available.
Issue body
Adds support for multi-base recipes with the `platforms` keyword.
Internally, this moves to a new practice where the application stops modifying project data before passing the it to craft-platforms. This will ensure consistent processing by charmcraft and by launchpad.
Documentation is coming soon via https://github.com/canonical/craft-platforms/issues/75 and https://github.com/canonical/charmcraft/issues/2009.
To summarize the usage, `base` and `build-base` are removed from the project and the base is encoded into the platform.
Platforms can be defined in a shorthand notation:
```yaml
platforms:
ubuntu@22.04:amd64:
ubuntu@24.04:amd64:
```
Or they can be defined in standard form:
```yaml
platforms:
jammy:
build-on: [ubuntu@22.04:amd64]
build-for: [ubuntu@22.04:amd64]
noble:
build-on: [ubuntu@24.04:amd64]
build-for: [ubuntu@24.04:amd64]
```
Fixes #1789
Fixes #2008
Creates https://github.com/canonical/craft-platforms/issues/85
Found during implementation https://github.com/canonical/craft-platforms/issues/80
(CRAFT-3718)
Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| stealth/space-bunny-alpha | — | closed resolved | PR #2054 by mr-cal merged (commit 1ad02d82), adding multi-base recipe support via the `platforms` keyword, dropping base/build-base from project data and passing it unmodified to craft-platforms (CRAFT-3718). | |
| stealth/space-bunny-alpha | — | closed resolved | Multi-base recipe support was merged in canonical/charmcraft#2054 (commit 1ad02d82), adding platforms-based builds and removing base/build-base from project data. | |
| stealth/space-bunny-alpha | — | closed resolved | Merged PR #2054 (commit 1ad02d82) added multi-base recipes via platforms, removed base/build-base fields, and fixed #1789 and #2008. | |
| stealth/space-bunny-alpha | — | closed resolved | PR #2054 merged as 1ad02d82, adding multi-base platforms support and replacing top-level base/build-base fields; fixes #1789 and #2008. | |
| stealth/space-bunny-alpha | — | closed resolved | Merged in canonical/charmcraft#2054 (commit 1ad02d82), adding multi-base recipe support through platforms and removing base/build-base project fields. | |
| qwen/qwen3.6-35b-a3b | — | — | Merged. Implemented multi-base recipe support using the platforms keyword, removing base and build-base fields. Refactored data handling to delegate to craft-platforms for consistent processing. Closes #1789 and #2008. | |
| qwen3.6-35b-a3b-mtp-q6 | — | — | Merged. Implements multi-base recipe support using a new platforms keyword, replacing base and build-base fields by encoding bases into platform definitions. Routes processing to craft-platforms for consistency. Closes #1789 and #2008. |
Update history
No update history recorded yet.
Related work
-
Likely Fixed By:
canonical/charmcraft#1789
(confidence 95%)
Multi-base subordinate charm builds on 24.04 enabled by platforms-based recipes; issue closed by this PR.
-
Likely Fixed By:
canonical/charmcraft#2008
(confidence 93%)
Multi-base platform support feature request satisfied by the merged implementation.
-
Related To:
canonical/charmcraft#2009
(confidence 70%)
Documentation follow-up issue; later closed as superseded by internal ticket CRAFT-3720 rather than by this PR.
-
Related To:
canonical/craft-platforms#85
(confidence 45%)
Upstream craft-platforms issue created during this implementation.
-
Related To:
canonical/craft-platforms#80
(confidence 40%)
Upstream craft-platforms issue found during implementation of the platforms handling.
-
Related To:
canonical/charmcraft#2069
(confidence 30%)
Follow-up dependency update of craft-application/craft-providers building on the new platforms workflow.
Related issues
| Issue | Project | State | Summary | Similarity |
|---|---|---|---|---|
| #598 feat: allow for multi-base builds | craft-application | merged | Merged as d81c39a7; allowed bases in platform entries so applications can implement multi-base build plans, fixing #569 (CRAFT-3719). | |
| #2008 Multi-base platform support | charmcraft | closed | Multi-base support shipped in charmcraft#2054 (commit 1ad02d82) via platforms-based recipes; the prototype was not separately polished, but the requested capability was implemented. | |
| #81 feat: multi-base support for charm build plans | craft-platforms | merged | Merged PR #81 as commit 519b705, adding multi-base charm build-plan support and fixing #73, with stricter shorthand validation and CraftPlatformsError. | |
| #52 feat: add support for the "platforms" primitive | rockcraft | merged | Merged PR canonical/rockcraft#52 (commit 9f4269c4) added the 'platforms' primitive to rockcraft.yaml, implementing multi-architecture build syntax requested in issue #49, which is now closed. | |
| #214 feat: support 26.10 as a stable base and build-base | debcraft | merged | Merged PR #214 adding Ubuntu 26.10 as a stable base and build-base, replacing the `devel` wildcard fallback, and updating craft-providers to 3.8.0. | |
| #483 feat: support "--platform" for "clean" | craft-application | merged | Merged PR #483 via commit 07e89deb, adding --platform to clean so one managed instance can be removed, and fixing craft-application#425. |