Plugins may depend on other plugins, and on Postulo's modules #884

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opened 2026-10-10 16:11:43 +00:00 by tiagoagueda · 1 comment

tiagoagueda commented

2026-10-10 16:11:43 +00:00

Owner

A level-0 plugin may depend on other level-0 plugins, as well as on Postulo and on Postulo's modules and sub-modules.

What exists today

A release says which Postulo it is for (requires_postulo, held at install, #186). No plugin declares a dependency on another: no requires anywhere in the plugin code.
Python dependencies come from the wheel's metadata and are installed from PyPI at install time.

What would change

Manifest.requires (plugin and module names, with version specifiers for plugins) and the same in the catalogue's Release.
Install refuses, naming what is missing, or offers to install the missing plugin from the same catalogue; a plugin whose dependency is switched off is off and its switch disabled, with the reason beside it (the cascade rule of #873).
Removing a plugin others depend on is refused, naming them.

Decisions

Auto-install a dependency. Recommended: offer it, never do it silently — installing runs code (#94).

Checked against main at 8c3d03570. From the maintainer's improvements list of 2026-10-07 (plugins).

A level-0 plugin may depend on other level-0 plugins, as well as on Postulo and on Postulo's modules and sub-modules. ## What exists today - A release says which Postulo it is for (`requires_postulo`, held at install, #186). **No plugin declares a dependency on another**: no `requires` anywhere in the plugin code. - Python dependencies come from the wheel's metadata and are installed from PyPI at install time. ## What would change - `Manifest.requires` (plugin and module names, with version specifiers for plugins) and the same in the catalogue's `Release`. - Install refuses, naming what is missing, or offers to install the missing plugin from the same catalogue; a plugin whose dependency is switched off is off and its switch disabled, with the reason beside it (the cascade rule of #873). - Removing a plugin others depend on is refused, naming them. ## Decisions - **Auto-install a dependency.** Recommended: offer it, never do it silently — installing runs code (#94). Checked against `main` at `8c3d03570`. From the maintainer's improvements list of 2026-10-07 (plugins).

tiagoagueda added this to the 1.0.0 milestone

2026-10-10 16:11:43 +00:00

tiagoagueda added the

enhancement

label

2026-10-10 16:11:43 +00:00

tiagoagueda referenced this issue

2026-10-10 16:11:52 +00:00

File formats: GeoJSON import and export of the companies' places, when Maps is on #880

tiagoagueda referenced this issue from a commit

2026-10-12 09:28:35 +00:00

Plugins may depend on other plugins and on Postulo's modules