Dump all notes to a git repo for backup purpose

bin/dump-to-git.js

@@ -0,0 +1,138 @@
+'use strict';
+
+var fs = require('fs');
+var process = require('process');
+var child_process = require('child_process');
+var Promise = require('bluebird');
+var NodeGit = require('nodegit');
+var LZString = require('lz-string');
+var models = require("../lib/models");
+var config = require('../config.json').dumpToGit;
+
+var repoRootDir = config.targetDirectory;
+
+try {
+	process.chdir(repoRootDir);
+} catch (e) {
+	console.error("The target directory for your notes does not exist, please create %s", repoRootDir);
+	process.exit(1);
+}
+
+
+function exportNotes() {
+  return models.Note
+  .findAll()
+  .then(function (notes) {
+    // Iterate over all notes
+    return Promise.all(notes.map(function (note) {
+      var fileName = LZString.decompressFromBase64(note.title) + " - " + LZString.compressToBase64(note.id) + ".md";
+      fileName = fileName.replace('/', '_');
+
+      // Export note to file
+      return new Promise(function (resolve) {
+        console.log('Exporting ' + note.id + ' to ' + fileName);
+        var body = LZString.decompressFromBase64(note.content);
+        fs.writeFile(fileName, body, resolve);
+      })
+      .then(function () {
+        return fileName;
+      });
+
+    }));
+  });
+}
+
+
+function addToIndexAndReturnTree(files, index) {
+  return Promise.all(files.map(function (file) {
+    console.log('Adding ' + file + ' to git index');
+    return index.addByPath(file);
+  }))
+  .then(function () {
+    console.log('Write files to git index');
+    return index.write();
+  })
+  .then(function () {
+    console.log('Write git index to tree');
+    return index.writeTree();
+  });
+}
+
+
+function getHeadCommit(repo) {
+  return NodeGit.Reference
+  .nameToId(repo, 'HEAD')
+  .then(function (headRef) {
+    return repo.getCommit(headRef);
+  });
+}
+
+
+function commit(repo, tree) {
+  return getHeadCommit(repo)
+  .then(function (head) {
+    console.log('Commiting...');
+    var sig = NodeGit.Signature.now(config.name, config.email);
+    return repo.createCommit('HEAD', sig, sig, 'Automated import', tree, [head]);
+  });
+}
+
+
+
+NodeGit.Repository
+.open('.')
+.then(function (repo) {
+
+  return exportNotes()
+  .then(function(files) {
+
+    return getHeadCommit(repo)
+    .then(function (head) {
+      return head.getTree();
+    })
+    .then(function (tree) {
+      console.log('Diff HEAD to workdir');
+      var opts = new NodeGit.DiffOptions();
+      opts.flags |= NodeGit.Diff.OPTION.INCLUDE_UNTRACKED;
+      return NodeGit.Diff.treeToWorkdir(repo, tree, opts);
+    })
+    .then(function (diff) {
+      console.log('Number of deltas: ' + diff.numDeltas());
+      if (diff.numDeltas() == 0) {
+        console.log('Nothing to commit');
+        return;
+      }
+
+      return repo.refreshIndex()
+      .then(function (index) {
+        return addToIndexAndReturnTree(files, index);
+      })
+      .then(function (tree) {
+        return commit(repo, tree);
+      });
+    })
+    .then(function () {
+      console.log('Get remote...');
+      return repo.getRemote('origin')
+    })
+    .then(function (remote) {
+      console.log('Push to origin');
+      // Didn't get remote.push() to work...
+      child_process.exec('git push');
+      // return remote.push(
+      //   ['refs/heads/master:refs/heads/master'],
+      //   {
+      //     callbacks: {
+      //       credentials: function(url, userName) {
+      //         console.log('credential for ' + url + ' and ' + userName);
+      //         return nodegit.Cred.sshKeyFromAgent(userName);
+      //       }
+      //     }
+      //   }
+      // );
+    });
+  });
+})
+.catch(function (error) {
+  console.log(error.message);
+});

config.json.example

@@ -54,5 +54,10 @@
         "imgur": {
             "clientID": "change this"
         }
+    },
+    "dumpToGit": {
+        "targetDirectory": "./notes",
+        "name": "Autocommitter",
+        "email": "john@example.com"
     }
 }

package.json

@@ -14,6 +14,7 @@
     "Idle.Js": "github:shawnmclean/Idle.js",
     "async": "^2.1.4",
     "aws-sdk": "^2.7.15",
+    "bluebird": "^3.4.0",
     "blueimp-md5": "^2.6.0",
     "body-parser": "^1.15.2",
     "bootstrap": "^3.3.7",
@@ -78,6 +79,7 @@
     "morgan": "^1.7.0",
     "mysql": "^2.12.0",
     "node-uuid": "^1.4.7",
+    "nodegit": "^0.13.0",
     "octicons": "~3.5.0",
     "passport": "^0.3.2",
     "passport-dropbox-oauth2": "^1.1.0",