[AI] Add plugins/ai/models_path to override the AI models folder#21049
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A feature enhancement, well contained in a single place and only doing something when set which is not the case by default. And furthermore needed by a core dev, so let's merge. Thanks!
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Thanks @TurboGit @andriiryzhkov |
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This isn't a real feature and it isn't a bugfix either – it's a small unblock for users who run multiple darktable installations side by side (testing, packaging, multi-config setups).
Context
By default darktable stores downloaded AI models under
$XDG_DATA_HOME/darktable/models– a single location shared across every darktable installation on the same user account. That's right for most people (one download, many configdirs), but it doesn't fit every setup.The case that prompted this came from darktable-org/lua-scripts#677 (comment): @wpferguson runs 40+ darktable installations on one machine, each with its own
--configdirso they don't step on each other. Everything stays isolated per instance except the models folder, which is hard-coded to the shared user data dir.What this PR does
Adds one optional string conf key,
plugins/ai/models_path. Empty (the default) → behaviour unchanged. Set → the AI registry uses that path verbatim, with a leading~expanded to$HOMEso users can type~/dt-modelsin preferences. No migration of existing downloads; the longdescription notes this.