38 lines
1.1 KiB
TypeScript
38 lines
1.1 KiB
TypeScript
import { generatorHandler } from "@prisma/generator-helper";
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import fs from "node:fs/promises";
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import path from "node:path";
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const header = `// This file was generated by a custom prisma generator, do not edit manually.\n`;
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generatorHandler({
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onManifest() {
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return {
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defaultOutput: "./enums/index.ts",
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prettyName: "Prisma Enum Generator",
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};
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},
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async onGenerate(options) {
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const enums = options.dmmf.datamodel.enums;
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const output = enums.map((e) => {
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let enumString = `export const ${e.name} = {\n`;
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e.values.forEach(({ name: value }) => {
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enumString += ` ${value}: "${value}",\n`;
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});
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enumString += `} as const;\n\n`;
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enumString += `export type ${e.name} = (typeof ${e.name})[keyof typeof ${e.name}];\n`;
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return enumString;
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});
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const outputFile = options.generator.output;
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if (!outputFile || !outputFile.value) {
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throw new Error("No output file specified");
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}
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const outputPath = path.resolve(outputFile.value);
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await fs.mkdir(path.dirname(outputPath), { recursive: true });
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await fs.writeFile(outputPath, header + output.join("\n"), "utf-8");
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},
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});
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