Public commit

scripts/plugins/esbuild-yaml.ts

@@ -0,0 +1,42 @@
+// MIT License
+// Copyright (c) 2021 Marton Lederer
+// https://github.com/martonlederer/esbuild-plugin-yaml/tree/d8d14d18c999f6507e906a7015ace0c991b507b4
+import { isAbsolute, join } from "path"
+import { TextDecoder } from "util"
+import { promises as fs } from "fs"
+import type { Plugin } from "esbuild"
+import type { LoadOptions } from "js-yaml"
+import yaml from "js-yaml"
+
+interface YamlPluginOptions {
+  loadOptions?: LoadOptions
+}
+
+export const yamlPlugin = (options: YamlPluginOptions = {}): Plugin => ({
+  name: "yaml",
+  setup(build) {
+    // resolve .yaml and .yml files
+    build.onResolve({ filter: /\.(yml|yaml)$/ }, ({ path, resolveDir }) => {
+      if (resolveDir === "") return
+
+      return {
+        path: isAbsolute(path) ? path : join(resolveDir, path),
+        namespace: "yaml",
+      }
+    })
+
+    // load files with "yaml" namespace
+    build.onLoad({ filter: /.*/, namespace: "yaml" }, async ({ path }) => {
+      const yamlContent = await fs.readFile(path)
+      const parsed = yaml.load(
+        new TextDecoder().decode(yamlContent),
+        options?.loadOptions,
+      ) as any
+
+      return {
+        contents: JSON.stringify(parsed),
+        loader: "json",
+      }
+    })
+  },
+})