first commit

app_vue/node_modules/@vue/component-compiler-utils/lib/templateCompilerModules/assetUrl.ts

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+// vue compiler module for transforming `<tag>:<attribute>` to `require`
+
+import { urlToRequire, ASTNode, Attr } from './utils'
+
+export interface AssetURLOptions {
+  [name: string]: string | string[]
+}
+
+export interface TransformAssetUrlsOptions {
+  /**
+   * If base is provided, instead of transforming relative asset urls into
+   * imports, they will be directly rewritten to absolute urls.
+   */
+  base?: string
+}
+
+const defaultOptions: AssetURLOptions = {
+  audio: 'src',
+  video: ['src', 'poster'],
+  source: 'src',
+  img: 'src',
+  image: ['xlink:href', 'href'],
+  use: ['xlink:href', 'href']
+}
+
+export default (
+  userOptions?: AssetURLOptions,
+  transformAssetUrlsOption?: TransformAssetUrlsOptions
+) => {
+  const options = userOptions
+    ? Object.assign({}, defaultOptions, userOptions)
+    : defaultOptions
+
+  return {
+    postTransformNode: (node: ASTNode) => {
+      transform(node, options, transformAssetUrlsOption)
+    }
+  }
+}
+
+function transform(
+  node: ASTNode,
+  options: AssetURLOptions,
+  transformAssetUrlsOption?: TransformAssetUrlsOptions
+) {
+  for (const tag in options) {
+    if ((tag === '*' || node.tag === tag) && node.attrs) {
+      const attributes = options[tag]
+      if (typeof attributes === 'string') {
+        node.attrs.some(attr =>
+          rewrite(attr, attributes, transformAssetUrlsOption)
+        )
+      } else if (Array.isArray(attributes)) {
+        attributes.forEach(item =>
+          node.attrs.some(attr => rewrite(attr, item, transformAssetUrlsOption))
+        )
+      }
+    }
+  }
+}
+
+function rewrite(
+  attr: Attr,
+  name: string,
+  transformAssetUrlsOption?: TransformAssetUrlsOptions
+) {
+  if (attr.name === name) {
+    const value = attr.value
+    // only transform static URLs
+    if (value.charAt(0) === '"' && value.charAt(value.length - 1) === '"') {
+      attr.value = urlToRequire(value.slice(1, -1), transformAssetUrlsOption)
+      return true
+    }
+  }
+  return false
+}