Fix 2207 and 2273, add export for storage.

browser/main/lib/dataApi/exportStorage.js

@@ -0,0 +1,63 @@
+import { findStorage } from 'browser/lib/findStorage'
+import resolveStorageData from './resolveStorageData'
+import resolveStorageNotes from './resolveStorageNotes'
+import filenamify from 'filenamify'
+import * as path from 'path'
+import * as fs from 'fs'
+
+/**
+ * @param {String} storageKey
+ * @param {String} fileType
+ * @param {String} exportDir
+ *
+ * @return {Object}
+ * ```
+ * {
+ *   storage: Object,
+ *   fileType: String,
+ *   exportDir: String
+ * }
+ * ```
+ */
+
+function exportStorage (storageKey, fileType, exportDir) {
+  let targetStorage
+  try {
+    targetStorage = findStorage(storageKey)
+  } catch (e) {
+    return Promise.reject(e)
+  }
+
+  return resolveStorageData(targetStorage)
+    .then(storage => (
+      resolveStorageNotes(storage).then(notes => ({storage, notes}))
+    ))
+    .then(function exportNotes (data) {
+      const { storage, notes } = data
+      const folderNamesMapping = {}
+      storage.folders.forEach(folder => {
+        const folderExportedDir = path.join(exportDir, filenamify(folder.name, {replacement: '_'}))
+        folderNamesMapping[folder.key] = folderExportedDir
+        // make sure directory exists
+        try {
+          fs.mkdirSync(folderExportedDir)
+        } catch (e) {}
+      })
+      notes
+        .filter(note => !note.isTrashed && note.type === 'MARKDOWN_NOTE')
+        .forEach(markdownNote => {
+          const folderExportedDir = folderNamesMapping[markdownNote.folder]
+          const snippetName = `${filenamify(markdownNote.title, {replacement: '_'})}.${fileType}`
+          const notePath = path.join(folderExportedDir, snippetName)
+          fs.writeFileSync(notePath, markdownNote.content)
+        })
+
+      return {
+        storage,
+        fileType,
+        exportDir
+      }
+    })
+}
+
+module.exports = exportStorage