43 lines
1.2 KiB
TypeScript
43 lines
1.2 KiB
TypeScript
// MIT License
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// Copyright (c) 2021 Marton Lederer
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// https://github.com/martonlederer/esbuild-plugin-yaml/tree/d8d14d18c999f6507e906a7015ace0c991b507b4
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import { isAbsolute, join } from "path"
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import { TextDecoder } from "util"
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import { promises as fs } from "fs"
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import type { Plugin } from "esbuild"
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import type { LoadOptions } from "js-yaml"
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import yaml from "js-yaml"
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interface YamlPluginOptions {
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loadOptions?: LoadOptions
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}
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export const yamlPlugin = (options: YamlPluginOptions = {}): Plugin => ({
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name: "yaml",
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setup(build) {
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// resolve .yaml and .yml files
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build.onResolve({ filter: /\.(yml|yaml)$/ }, ({ path, resolveDir }) => {
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if (resolveDir === "") return
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return {
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path: isAbsolute(path) ? path : join(resolveDir, path),
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namespace: "yaml",
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}
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})
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// load files with "yaml" namespace
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build.onLoad({ filter: /.*/, namespace: "yaml" }, async ({ path }) => {
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const yamlContent = await fs.readFile(path)
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const parsed = yaml.load(
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new TextDecoder().decode(yamlContent),
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options?.loadOptions,
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) as any
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return {
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contents: JSON.stringify(parsed),
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loader: "json",
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}
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})
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},
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})
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