Add a GitClone async task

Also add a lot of misc code which was there from a previous spike. We
need an AsyncTask as one cannot run network operations in the main
thread.

android/app/src/main/java/com/example/journal/GitCloneTask.java

@@ -0,0 +1,39 @@
+package com.example.journal;
+
+import android.os.AsyncTask;
+
+import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.api.errors.GitAPIException;
+
+import java.io.File;
+
+import io.flutter.plugin.common.MethodChannel.Result;
+
+public class GitCloneTask extends AsyncTask<String, Void, Void> {
+    private Result result;
+
+    public GitCloneTask(Result _result) {
+        result = _result;
+    }
+
+    protected Void doInBackground(String... params) {
+        String url = params[0];
+        String filesDir = params[1];
+        File directory = new File(filesDir + "/git");
+
+        try {
+            Git git = Git.cloneRepository()
+                    .setURI(url)
+                    .setDirectory(directory)
+                    .call();
+        }
+        catch (GitAPIException e) {
+            System.err.println("Error Cloning repository " + url + " : "+ e.getMessage());
+        }
+        return null;
+    }
+
+    protected void onPostExecute(Void taskResult) {
+        result.success(null);
+    }
+}

android/app/src/main/java/com/example/journal/MainActivity.java

@@ -3,6 +3,7 @@ package com.example.journal;
 import java.io.File;
 
 import android.os.Bundle;
+import android.util.Log;
 
 import io.flutter.app.FlutterActivity;
 import io.flutter.plugins.GeneratedPluginRegistrant;
@@ -13,6 +14,8 @@ import io.flutter.plugin.common.MethodChannel;
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
 import io.flutter.plugin.common.MethodChannel.Result;
 
+import io.flutter.util.PathUtils;
+
 import org.eclipse.jgit.api.CloneCommand;
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.errors.GitAPIException;
@@ -38,8 +41,18 @@ public class MainActivity extends FlutterActivity {
               return;
             }
 
-            gitClone(cloneUrl, filePath);
+            String filesDir = PathUtils.getFilesDir(getApplicationContext());
+            Log.d("vhanda", filesDir);
+            String cloneLocation = filesDir + "/git";
+
+            new GitCloneTask(result).execute(cloneUrl, cloneLocation);
+            /*
+            if (gitClone(cloneUrl, filePath)) {
               result.success(null);
+            } else {
+              result.error("UNAVAILABLE", "Battery level not available.", null);
+            }
+            */
             return;
           }
 
@@ -55,20 +68,81 @@ public class MainActivity extends FlutterActivity {
       });
   }
 
-  private void gitClone(String url, String filePath) {
+  private boolean gitClone(String url, String filePath) {
     // TODO: Progress
     // TODO: Credentials
     // TODO: Handle errors!
-    File directory = new File(filePath);
+
+    File directory = new File("/git");
 
     try {
       Git git = Git.cloneRepository()
               .setURI(url)
               .setDirectory(directory)
               .call();
+      return true;
+    }
+    catch (GitAPIException e) {
+      System.err.println("Error Cloning repository " + url + " : "+ e.getMessage());
+      return false;
+    }
+  }
+
+  /*
+  private void gitAdd(String gitRootUrl, String gitFileUrl) {
+    File directory = new File(gitRootUrl);
+
+    try {
+      Git git = Git.open(directory);
+
+      git.add()
+        .addFilepattern(gitFileUrl)
+        .call();
     }
     catch (GitAPIException e) {
       System.err.println("Error Cloning repository " + url + " : "+ e.getMessage());
     }
+    catch (java.io.IOException e) {
+      System.err.println("Error Opening GitRepo " + gitRootUrl + " : "+ e.getMessage());
     }
+  }
+
+  private void gitRemove(String gitRootUrl, String gitFileUrl) {
+    File directory = new File(gitRootUrl);
+
+    try {
+      Git git = Git.open(directory);
+
+      git.rm()
+        .addFilepattern(gitFileUrl)
+        .call();
+    }
+    catch (GitAPIException e) {
+      System.err.println("Error Cloning repository " + url + " : "+ e.getMessage());
+    }
+    catch (java.io.IOException e) {
+      System.err.println("Error Opening GitRepo " + gitRootUrl + " : "+ e.getMessage());
+    }
+  }
+
+  private void gitCommit(String gitRootUrl, String message) {
+    File directory = new File(gitRootUrl);
+
+    try {
+      Git git = Git.open(directory);
+
+      git.commit()
+        .setAuthor("JournalApp", "none@example.com")
+        .setMessage(message)
+        .call();
+    }
+    catch (GitAPIException e) {
+      System.err.println("Error Cloning repository " + url + " : "+ e.getMessage());
+    }
+    catch (java.io.IOException e) {
+      System.err.println("Error Opening GitRepo " + gitRootUrl + " : "+ e.getMessage());
+    }
+  }
+  */
+
 }