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// |
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// InferenceEnvironment.swift |
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// Siti AI visionOS |
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// |
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import Foundation |
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/// Points `HF_HOME` and `HF_HUB_CACHE` at a writable location inside the app |
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/// sandbox. Uses the same `group.com.ondeinference.apps` App Group as the |
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/// Tauri build of Siti (see `src-tauri/src/setup/setup_application_filesystem.rs`) |
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/// so a model downloaded by one Siti app on this device is reused by the |
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/// other instead of being fetched twice. Falls back to the app's own |
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/// Application Support directory if the group is unavailable. |
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/// |
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/// Call this once at launch, before creating an `OndeChatEngine`. |
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func setupInferenceEnvironment() { |
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let fm = FileManager.default |
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let base: URL = fm.containerURL( |
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forSecurityApplicationGroupIdentifier: "group.com.ondeinference.apps" |
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) ?? fm.urls(for: .applicationSupportDirectory, in: .userDomainMask)[0] |
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let hfHome = base.appendingPathComponent("models", isDirectory: true) |
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let hfHubCache = hfHome.appendingPathComponent("hub", isDirectory: true) |
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try? fm.createDirectory(at: hfHubCache, withIntermediateDirectories: true) |
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setenv("HF_HOME", hfHome.path, 1) |
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setenv("HF_HUB_CACHE", hfHubCache.path, 1) |
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// Make sure TMPDIR points inside the sandbox for the Rust side. |
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let tmp = base.appendingPathComponent("tmp", isDirectory: true) |
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try? fm.createDirectory(at: tmp, withIntermediateDirectories: true) |
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setenv("TMPDIR", tmp.path, 1) |
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} |