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[Inference] LoRA: use the precomputed adapterWeightsPath property #1379

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Merged
merged 3 commits into from
Apr 25, 2025
Merged

[Inference] LoRA: use the precomputed adapterWeightsPath property #1379

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e9c24f6
use the precomputed adapterWeightsPath property
SBrandeis Apr 23, 2025
2dde80c
actually we can remove this code wholly
SBrandeis Apr 24, 2025
9be192e
remove duplicated code
SBrandeis Apr 24, 2025
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18 changes: 1 addition & 17 deletions packages/inference/src/lib/getInferenceProviderMapping.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ import { typedInclude } from "../utils/typedInclude";
export const inferenceProviderMappingCache = new Map<ModelId, InferenceProviderMapping>();

export type InferenceProviderMapping = Partial<
Record<InferenceProvider, Omit<InferenceProviderModelMapping, "hfModelId" | "adapterWeightsPath">>
Record<InferenceProvider, Omit<InferenceProviderModelMapping, "hfModelId">>
>;

export interface InferenceProviderModelMapping {
Expand Down Expand Up @@ -74,22 +74,6 @@ export async function getInferenceProviderMapping(
`Model ${params.modelId} is in staging mode for provider ${params.provider}. Meant for test purposes only.`
);
}
if (providerMapping.adapter === "lora") {
const treeResp = await (options?.fetch ?? fetch)(`${HF_HUB_URL}/api/models/${params.modelId}/tree/main`);
if (!treeResp.ok) {
throw new Error(`Unable to fetch the model tree for ${params.modelId}.`);
}
const tree: Array<{ type: "file" | "directory"; path: string }> = await treeResp.json();
const adapterWeightsPath = tree.find(({ type, path }) => type === "file" && path.endsWith(".safetensors"))?.path;
if (!adapterWeightsPath) {
throw new Error(`No .safetensors file found in the model tree for ${params.modelId}.`);
}
return {
...providerMapping,
hfModelId: params.modelId,
adapterWeightsPath,
};
}
return { ...providerMapping, hfModelId: params.modelId };
}
return null;
Expand Down
10 changes: 0 additions & 10 deletions packages/inference/src/providers/fal-ai.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -86,16 +86,6 @@ export class FalAITextToImageTask extends FalAITask implements TextToImageTaskHe
...(params.args.parameters as Record<string, unknown>),
sync_mode: true,
prompt: params.args.inputs,
...(params.mapping?.adapter === "lora" && params.mapping.adapterWeightsPath
? {
loras: [
{
path: buildLoraPath(params.mapping.hfModelId, params.mapping.adapterWeightsPath),
scale: 1,
},
],
}
: undefined),
};

if (params.mapping?.adapter === "lora" && params.mapping.adapterWeightsPath) {
Expand Down