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Create provider settings at build time and update the settings list d…
…ynamically
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| const fs = require('fs'); | ||
| const tsj = require('ts-json-schema-generator'); | ||
| const path = require('path'); | ||
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| console.log('Building settings schema\n'); | ||
|
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| const outputDir = 'src/_provider-settings'; | ||
| if (!fs.existsSync(outputDir)) { | ||
| fs.mkdirSync(outputDir); | ||
| } | ||
|
|
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| // Build the langchain BaseLanguageModelParams object | ||
| const configBase = { | ||
| path: 'node_modules/@langchain/core/dist/language_models/base.d.ts', | ||
| tsconfig: './tsconfig.json', | ||
| type: 'BaseLanguageModelParams', | ||
| }; | ||
|
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| const schemaBase = tsj.createGenerator(configBase).createSchema(configBase.type); | ||
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| const providers = { | ||
| mistralAI: { | ||
| path: 'node_modules/@langchain/mistralai/dist/chat_models.d.ts', | ||
| type: 'ChatMistralAIInput' | ||
| } | ||
| }; | ||
|
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| Object.entries(providers).forEach(([name, desc], index) => { | ||
| const config = { | ||
| path: desc.path, | ||
| tsconfig: './tsconfig.json', | ||
| type: desc.type | ||
| }; | ||
|
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| const outputPath = path.join(outputDir, `${name}.json`); | ||
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| const schema =tsj.createGenerator(config).createSchema(config.type); | ||
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| if (!schema.definitions) { | ||
| return; | ||
| } | ||
|
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| // Remove the properties from extended class. | ||
| const providerKeys = Object.keys( | ||
| schema.definitions[desc.type]['properties'] | ||
| ); | ||
| Object.keys( | ||
| schemaBase.definitions?.['BaseLanguageModelParams']['properties'] | ||
| ).forEach(key => { | ||
| if (providerKeys.includes(key)) { | ||
| delete schema.definitions?.[desc.type]['properties'][key]; | ||
| } | ||
| }); | ||
|
|
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| // Remove the useless definitions. | ||
| let change = true; | ||
| while (change) { | ||
| change = false; | ||
| const temporarySchemaString = JSON.stringify(schema); | ||
|
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| Object.keys(schema.definitions).forEach(key => { | ||
| const index = temporarySchemaString.indexOf(`#/definitions/${key}`); | ||
| if (index === -1) { | ||
| delete schema.definitions?.[key]; | ||
| change = true; | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| // Transform the default values. | ||
| Object.values(schema.definitions[desc.type]['properties']).forEach(value => { | ||
| const defaultValue = value.default; | ||
| if (!defaultValue) { | ||
| return; | ||
| } | ||
| if (value.type === 'number') { | ||
| value.default = Number(/{(.*)}/.exec(value.default)?.[1] ?? 0); | ||
| } else if (value.type === 'boolean') { | ||
| value.default = (/{(.*)}/.exec(value.default))?.[1] === 'true'; | ||
| } else if (value.type === 'string') { | ||
| value.default = /{\"(.*)\"}/.exec(value.default)?.[1] ?? ''; | ||
| } | ||
| }); | ||
|
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| // Write JSON file. | ||
| const schemaString = JSON.stringify(schema, null, 2); | ||
| fs.writeFile(outputPath, schemaString, err => { | ||
| if (err) { | ||
| throw err; | ||
| } | ||
| }); | ||
| }); | ||
|
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| console.log('Settings schema built\n'); | ||
| console.log('=====================\n'); |
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