first commit

app_vue/node_modules/@vue/cli-service/lib/util/resolveUserConfig.js

@@ -0,0 +1,83 @@
+const path = require('path')
+const { chalk, warn, error } = require('@vue/cli-shared-utils')
+const { validate } = require('../options')
+
+function ensureSlash (config, key) {
+  const val = config[key]
+  if (typeof val === 'string') {
+    config[key] = val.replace(/([^/])$/, '$1/')
+  }
+}
+
+function removeSlash (config, key) {
+  if (typeof config[key] === 'string') {
+    config[key] = config[key].replace(/\/$/g, '')
+  }
+}
+
+module.exports = function resolveUserConfig ({
+  inlineOptions,
+  pkgConfig,
+  fileConfig,
+  fileConfigPath
+}) {
+  if (fileConfig) {
+    if (typeof fileConfig === 'function') {
+      fileConfig = fileConfig()
+    }
+
+    if (!fileConfig || typeof fileConfig !== 'object') {
+      throw new Error(
+        `Error loading ${chalk.bold(fileConfigPath)}: ` +
+        `should export an object or a function that returns object.`
+      )
+    }
+  }
+
+  // package.vue
+  if (pkgConfig && typeof pkgConfig !== 'object') {
+    throw new Error(
+      `Error loading Vue CLI config in ${chalk.bold(`package.json`)}: ` +
+      `the "vue" field should be an object.`
+    )
+  }
+
+  let resolved, resolvedFrom
+  if (fileConfig) {
+    const configFileName = path.basename(fileConfigPath)
+    if (pkgConfig) {
+      warn(
+        `"vue" field in package.json ignored ` +
+        `due to presence of ${chalk.bold(configFileName)}.`
+      )
+      warn(
+        `You should migrate it into ${chalk.bold(configFileName)} ` +
+        `and remove it from package.json.`
+      )
+    }
+    resolved = fileConfig
+    resolvedFrom = configFileName
+  } else if (pkgConfig) {
+    resolved = pkgConfig
+    resolvedFrom = '"vue" field in package.json'
+  } else {
+    resolved = inlineOptions || {}
+    resolvedFrom = 'inline options'
+  }
+
+  // normalize some options
+  if (resolved.publicPath !== 'auto') {
+    ensureSlash(resolved, 'publicPath')
+  }
+  if (typeof resolved.publicPath === 'string') {
+    resolved.publicPath = resolved.publicPath.replace(/^\.\//, '')
+  }
+  removeSlash(resolved, 'outputDir')
+
+  // validate options
+  validate(resolved, msg => {
+    error(`Invalid options in ${chalk.bold(resolvedFrom)}: ${msg}`)
+  })
+
+  return resolved
+}