first commit

app_vue/node_modules/jsonfile/index.js

@@ -0,0 +1,88 @@
+let _fs
+try {
+  _fs = require('graceful-fs')
+} catch (_) {
+  _fs = require('fs')
+}
+const universalify = require('universalify')
+const { stringify, stripBom } = require('./utils')
+
+async function _readFile (file, options = {}) {
+  if (typeof options === 'string') {
+    options = { encoding: options }
+  }
+
+  const fs = options.fs || _fs
+
+  const shouldThrow = 'throws' in options ? options.throws : true
+
+  let data = await universalify.fromCallback(fs.readFile)(file, options)
+
+  data = stripBom(data)
+
+  let obj
+  try {
+    obj = JSON.parse(data, options ? options.reviver : null)
+  } catch (err) {
+    if (shouldThrow) {
+      err.message = `${file}: ${err.message}`
+      throw err
+    } else {
+      return null
+    }
+  }
+
+  return obj
+}
+
+const readFile = universalify.fromPromise(_readFile)
+
+function readFileSync (file, options = {}) {
+  if (typeof options === 'string') {
+    options = { encoding: options }
+  }
+
+  const fs = options.fs || _fs
+
+  const shouldThrow = 'throws' in options ? options.throws : true
+
+  try {
+    let content = fs.readFileSync(file, options)
+    content = stripBom(content)
+    return JSON.parse(content, options.reviver)
+  } catch (err) {
+    if (shouldThrow) {
+      err.message = `${file}: ${err.message}`
+      throw err
+    } else {
+      return null
+    }
+  }
+}
+
+async function _writeFile (file, obj, options = {}) {
+  const fs = options.fs || _fs
+
+  const str = stringify(obj, options)
+
+  await universalify.fromCallback(fs.writeFile)(file, str, options)
+}
+
+const writeFile = universalify.fromPromise(_writeFile)
+
+function writeFileSync (file, obj, options = {}) {
+  const fs = options.fs || _fs
+
+  const str = stringify(obj, options)
+  // not sure if fs.writeFileSync returns anything, but just in case
+  return fs.writeFileSync(file, str, options)
+}
+
+const jsonfile = {
+  readFile,
+  readFileSync,
+  writeFile,
+  writeFileSync
+}
+
+module.exports = jsonfile