Add an example for add/remove to index

John Haley · John Haley · commit a42b721c45d4 · 2015-02-27T16:05:41.000-07:00
diff --git a/examples/index-add-and-remove.js b/examples/index-add-and-remove.js
@@ -0,0 +1,134 @@
+var nodegit = require("../");
+var path = require("path");
+var Promise = require("nodegit-promise");
+var promisify = require("promisify-node");
+var fse = promisify(require("fs-extra"));
+
+nodegit.Repository.open(path.resolve(__dirname, "../.git"))
+  .then(function(repo) {
+    return repo.openIndex()
+    .then(function(index) {
+      var fileContent = {
+        newFile1: "this has some content",
+        newFile2: "and this will have more content"
+      };
+      var fileNames = Object.keys(fileContent);
+
+      return Promise.all(fileNames.map(function(fileName) {
+        fse.writeFile(
+          path.join(repo.workdir(), fileName), fileContent[fileName]);
+      }))
+
+
+
+        // This will add all files to the index
+      .then(function() {
+        return index.addAll();
+      })
+      .then(function() {
+        var newFiles = index.entries().filter(function(entry) {
+          return ~fileNames.indexOf(entry.path());
+        });
+
+        console.log(
+          "\n-------------------\n" +
+          "Added files: " +
+          "\n-------------------\n");
+        newFiles.forEach(function(entry) {
+          console.log(entry.path());
+        });
+      })
+      .then(function() {
+        // This will remove the files from the index
+        return index.removeAll("newFile*");
+      })
+      .then(function() {
+        var newFiles = index.entries().filter(function(entry) {
+          return ~fileNames.indexOf(entry.path());
+        });
+
+        console.log("New files in index: " + newFiles.length);
+      })
+
+
+
+      // We can also provide a pattern to add files to the index
+      .then(function() {
+        return index.addAll("newFile*");
+      })
+      .then(function() {
+        var newFiles = index.entries().filter(function(entry) {
+          return ~fileNames.indexOf(entry.path());
+        });
+
+        console.log(
+          "\n-------------------\n" +
+          "Added files with pattern: " +
+          "\n-------------------\n");
+        newFiles.forEach(function(entry) {
+          console.log(entry.path());
+        });
+      })
+      .then(function() {
+        // We're also using the pattern in the remove
+        return index.removeAll("newFile*");
+      })
+      .then(function() {
+        var newFiles = index.entries().filter(function(entry) {
+          return ~fileNames.indexOf(entry.path());
+        });
+
+        console.log("New files in index: " + newFiles.length);
+      })
+
+
+
+      // Callbacks can be used for a finer degree of control over what
+      // we add to the index
+      .then(function() {
+        return index.addAll(
+          "newFile*",
+          nodegit.Index.ADD_OPTION.ADD_CHECK_PATHSPEC,
+          function(path, matchedPattern) {
+            if (path == "newFile1") {
+              return 0; // add the file
+            }
+
+            return 1; // skip the file
+          });
+      })
+      .then(function() {
+        var newFiles = index.entries().filter(function(entry) {
+          return ~fileNames.indexOf(entry.path());
+        });
+
+        console.log(
+          "\n-------------------\n" +
+          "Added files with callback: " +
+          "\n-------------------\n");
+        newFiles.forEach(function(entry) {
+          console.log(entry.path());
+        });
+      })
+      .then(function() {
+        // Lets use a callback in the remove as well
+        return index.removeAll(null, function(path) {
+          if (~path.indexOf("newFile")) {
+            return 0; // remove the file
+          }
+
+          return 1; // don't remove the file
+        });
+      })
+      .then(function() {
+        var newFiles = index.entries().filter(function(entry) {
+          return ~fileNames.indexOf(entry.path());
+        });
+
+        console.log("Total: " + index.entries().length);
+        console.log("New files in index: " + newFiles.length);
+      });
+    });
+  }).done(function() {
+    console.log("All done!");
+  });
