703 lines
17 KiB
C#
703 lines
17 KiB
C#
// SparkleShare, an instant update workflow to Git.
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// Copyright (C) 2010 Hylke Bons <hylkebons@gmail.com>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using Mono.Unix;
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Text.RegularExpressions;
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using System.Timers;
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namespace SparkleLib {
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public class SparkleRepo
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{
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private Process Process;
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private Timer FetchTimer;
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private Timer BufferTimer;
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private FileSystemWatcher Watcher;
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private bool HasChanged;
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private DateTime LastChange;
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private System.Object ChangeLock = new System.Object();
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public string Name;
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public string Domain;
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public string LocalPath;
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public string RemoteOriginUrl;
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public string CurrentHash;
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public string UserEmail;
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public string UserName;
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public delegate void AddedEventHandler (object o, SparkleEventArgs args);
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public delegate void CommitedEventHandler (object o, SparkleEventArgs args);
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public delegate void PushingStartedEventHandler (object o, SparkleEventArgs args);
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public delegate void PushingFinishedEventHandler (object o, SparkleEventArgs args);
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public delegate void FetchingStartedEventHandler (object o, SparkleEventArgs args);
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public delegate void FetchingFinishedEventHandler (object o, SparkleEventArgs args);
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public delegate void NewCommitEventHandler (object o, NewCommitArgs args);
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public delegate void ConflictDetectedEventHandler (object o, SparkleEventArgs args);
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public event AddedEventHandler Added;
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public event CommitedEventHandler Commited;
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public event PushingStartedEventHandler PushingStarted;
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public event PushingFinishedEventHandler PushingFinished;
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public event FetchingStartedEventHandler FetchingStarted;
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public event FetchingFinishedEventHandler FetchingFinished;
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public event NewCommitEventHandler NewCommit;
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public event ConflictDetectedEventHandler ConflictDetected;
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public SparkleRepo (string path)
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{
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if (!Directory.Exists (path))
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Directory.CreateDirectory (path);
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LocalPath = path;
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Name = Path.GetFileName (LocalPath);
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Process = new Process () {
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EnableRaisingEvents = true
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};
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Process.StartInfo.FileName = "git";
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Process.StartInfo.RedirectStandardOutput = true;
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Process.StartInfo.UseShellExecute = false;
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Process.StartInfo.WorkingDirectory = LocalPath;
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UserName = GetUserName ();
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UserEmail = GetUserEmail ();
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RemoteOriginUrl = GetRemoteOriginUrl ();
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CurrentHash = GetCurrentHash ();
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Domain = GetDomain (RemoteOriginUrl);
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HasChanged = false;
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// Watch the repository's folder
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Watcher = new FileSystemWatcher (LocalPath) {
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IncludeSubdirectories = true,
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EnableRaisingEvents = true,
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Filter = "*"
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};
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Watcher.Changed += new FileSystemEventHandler (OnFileActivity);
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Watcher.Created += new FileSystemEventHandler (OnFileActivity);
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Watcher.Deleted += new FileSystemEventHandler (OnFileActivity);
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// Fetch remote changes every minute
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FetchTimer = new Timer () {
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Interval = 60000
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};
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FetchTimer.Elapsed += delegate {
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Fetch ();
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};
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// Keep a buffer that checks if there are changes and
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// whether they have settled
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BufferTimer = new Timer () {
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Interval = 4000
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};
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BufferTimer.Elapsed += delegate (object o, ElapsedEventArgs args) {
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CheckForChanges ();
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};
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FetchTimer.Start ();
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BufferTimer.Start ();
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// Add everything that changed
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// since SparkleShare was stopped
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AddCommitAndPush ();
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Idling...");
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}
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private void CheckForChanges ()
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{
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lock (ChangeLock) {
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if (HasChanged) {
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SparkleHelpers.DebugInfo ("Buffer", "[" + Name + "] Changes found, checking if settled.");
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DateTime now = DateTime.UtcNow;
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TimeSpan changed = new TimeSpan (now.Ticks - LastChange.Ticks);
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if (changed.TotalMilliseconds > 5000) {
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HasChanged = false;
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SparkleHelpers.DebugInfo ("Buffer", "[" + Name + "] Changes have settled, adding files...");
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AddCommitAndPush ();
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}
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}
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}
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}
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// Starts a time buffer when something changes
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private void OnFileActivity (object o, FileSystemEventArgs args)
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{
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WatcherChangeTypes wct = args.ChangeType;
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if (!ShouldIgnore (args.Name)) {
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SparkleHelpers.DebugInfo ("Event", "[" + Name + "] " + wct.ToString () + " '" + args.Name + "'");
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FetchTimer.Stop ();
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lock (ChangeLock) {
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LastChange = DateTime.UtcNow;
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HasChanged = true;
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}
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}
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}
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// When there are changes we generally want to Add, Commit and Push
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// so this method does them all with appropriate timers, etc. switched off
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public void AddCommitAndPush ()
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{
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try {
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BufferTimer.Stop ();
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FetchTimer.Stop ();
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Add ();
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string message = FormatCommitMessage ();
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if (!message.Equals ("")) {
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Commit (message);
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Fetch ();
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Push ();
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}
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} finally {
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FetchTimer.Start ();
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BufferTimer.Start ();
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}
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}
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// Stages the made changes
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private void Add ()
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{
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// TODO: Check whether adding files is neccassary
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Staging changes...");
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Process.StartInfo.Arguments = "add --all";
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Process.Start ();
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Process.WaitForExit ();
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Changes staged.");
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SparkleEventArgs args = new SparkleEventArgs ("Added");
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if (Added != null)
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Added (this, args);
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}
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// Commits the made changes
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public void Commit (string message)
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{
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SparkleHelpers.DebugInfo ("Commit", "[" + Name + "] " + message);
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Process.StartInfo.Arguments = "commit -m \"" + message + "\"";
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Process.Start ();
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Process.WaitForExit ();
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SparkleEventArgs args = new SparkleEventArgs ("Commited");
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args.Message = message;
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if (Commited != null)
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Commited (this, args);
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}
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// Fetches changes from the remote repository
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public void Fetch ()
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{
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FetchTimer.Stop ();
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Process process = new Process () {
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EnableRaisingEvents = true
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};
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process.StartInfo.FileName = "git";
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process.StartInfo.RedirectStandardOutput = true;
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process.StartInfo.UseShellExecute = false;
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process.StartInfo.WorkingDirectory = LocalPath;
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SparkleEventArgs args;
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args = new SparkleEventArgs ("FetchingStarted");
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if (FetchingStarted != null)
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FetchingStarted (this, args);
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Fetching changes...");
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process.StartInfo.Arguments = "fetch";
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process.Start ();
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process.Exited += delegate {
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Changes fetched.");
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// TODO: this doesn't exit sometimes
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args = new SparkleEventArgs ("FetchingFinished");
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if (FetchingFinished != null)
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FetchingFinished (this, args);
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Rebase ();
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FetchTimer.Start ();
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};
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}
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// Merges the fetched changes
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public void Rebase ()
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{
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Watcher.EnableRaisingEvents = false;
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Rebasing changes...");
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Process.StartInfo.Arguments = "rebase -v origin/master";
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Process.WaitForExit ();
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Process.Start ();
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Changes rebased.");
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string output = Process.StandardOutput.ReadToEnd ().Trim ();
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if (!output.Contains ("up to date")) {
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if (output.Contains ("Failed to merge")) {
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Resolving conflict...");
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Process.StartInfo.Arguments = "status";
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Process.WaitForExit ();
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Process.Start ();
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output = Process.StandardOutput.ReadToEnd ().Trim ();
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string [] lines = Regex.Split (output, "\n");
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foreach (string line in lines) {
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if (line.Contains ("needs merge")) {
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string problem_file_name = line.Substring (line.IndexOf (": needs merge"));
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Process.StartInfo.Arguments = "checkout --ours " + problem_file_name;
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Process.WaitForExit ();
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Process.Start ();
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string timestamp = DateTime.Now.ToString ("H:mm d MMM yyyy");
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File.Move (problem_file_name, problem_file_name + " (" + UserName + ", " + timestamp + ")");
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Process.StartInfo.Arguments = "checkout --theirs " + problem_file_name;
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Process.WaitForExit ();
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Process.Start ();
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SparkleEventArgs args = new SparkleEventArgs ("ConflictDetected");
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if (ConflictDetected != null)
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ConflictDetected (this, args);
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}
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}
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Add ();
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Process.StartInfo.Arguments = "rebase --continue";
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Process.WaitForExit ();
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Process.Start ();
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Conflict resolved.");
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Push ();
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Fetch ();
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}
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// Get the last commiter
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Process.StartInfo.Arguments = "log --format=\"%an\" -1";
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Process.Start ();
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string author = Process.StandardOutput.ReadToEnd ().Trim ();
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// Get the last committer e-mail
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Process.StartInfo.Arguments = "log --format=\"%ae\" -1";
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Process.Start ();
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string email = Process.StandardOutput.ReadToEnd ().Trim ();
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// Get the last commit message
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Process.StartInfo.Arguments = "log --format=\"%s\" -1";
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Process.Start ();
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string message = Process.StandardOutput.ReadToEnd ().Trim ();
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NewCommitArgs new_commit_args = new NewCommitArgs (author, email, message);
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if (NewCommit != null)
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NewCommit (this, new_commit_args);
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}
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Watcher.EnableRaisingEvents = true;
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Idling...");
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}
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// Pushes the changes to the remote repo
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public void Push ()
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{
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SparkleEventArgs args = new SparkleEventArgs ("PushingStarted");
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if (PushingStarted != null)
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PushingStarted (this, args);
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Pushing changes...");
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Process.StartInfo.Arguments = "push";
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Process.Start ();
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Process.WaitForExit ();
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Process.Exited += delegate {
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SparkleHelpers.DebugInfo ("Git", "[" + Name + "] Changes pushed.");
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args = new SparkleEventArgs ("PushingFinished");
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if (PushingFinished != null)
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PushingFinished (this, args);
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};
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}
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public void Stop ()
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{
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FetchTimer.Stop ();
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BufferTimer.Stop ();
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}
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// Ignores repos, dotfiles, swap files and the like.
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private bool ShouldIgnore (string file_name)
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{
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if (file_name [0].Equals (".") ||
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file_name.Contains (".lock") ||
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file_name.Contains (".git") ||
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file_name.Contains ("/.") ||
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Directory.Exists (LocalPath + file_name)) {
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return true; // Yes, ignore it.
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} else if (file_name.Length > 3 &&
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file_name.Substring (file_name.Length - 4).Equals (".swp")) {
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return true; // Yes, ignore it.
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} else {
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return false;
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}
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}
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// Gets the domain name of a given URL
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public string GetDomain (string url)
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{
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string domain = url.Substring (RemoteOriginUrl.IndexOf ("@") + 1);
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if (domain.IndexOf (":") > -1)
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domain = domain.Substring (0, domain.IndexOf (":"));
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else
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domain = domain.Substring (0, domain.IndexOf ("/"));
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return domain;
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}
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// Gets hash of the current commit
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public string GetCurrentHash ()
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{
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string current_hash;
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Process process = new Process ();
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process.StartInfo.RedirectStandardOutput = true;
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process.StartInfo.UseShellExecute = false;
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process.StartInfo.FileName = "git";
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process.StartInfo.WorkingDirectory = LocalPath;
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process.StartInfo.Arguments = "rev-list --max-count=1 HEAD";
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process.Start ();
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current_hash = process.StandardOutput.ReadToEnd ().Trim ();
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return current_hash;
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}
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// Gets the user's name, example: "User Name"
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public string GetUserName ()
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{
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string user_name;
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Process process = new Process ();
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process.StartInfo.RedirectStandardOutput = true;
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process.StartInfo.UseShellExecute = false;
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process.StartInfo.FileName = "git";
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process.StartInfo.WorkingDirectory = LocalPath;
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process.StartInfo.Arguments = "config --get user.name";
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process.Start ();
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user_name = process.StandardOutput.ReadToEnd ().Trim ();
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if (user_name.Equals ("")) {
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UnixUserInfo unix_user_info = new UnixUserInfo (UnixEnvironment.UserName);
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if (unix_user_info.RealName.Equals (""))
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user_name = "???";
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else
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user_name = unix_user_info.RealName;
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}
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return user_name;
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}
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// Gets the user's email, example: "person@gnome.org"
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public string GetUserEmail ()
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{
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string user_email;
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Process process = new Process ();
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process.StartInfo.UseShellExecute = false;
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process.StartInfo.RedirectStandardOutput = true;
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process.StartInfo.FileName = "git";
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process.StartInfo.WorkingDirectory = LocalPath;
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process.StartInfo.Arguments = "config --get user.email";
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process.Start ();
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user_email = process.StandardOutput.ReadToEnd ().Trim ();
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return user_email;
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}
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// Gets the url of the remote repo, example: "ssh://git@git.gnome.org/project"
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public string GetRemoteOriginUrl ()
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{
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string remote_origin_url;
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Process process = new Process ();
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process.StartInfo.UseShellExecute = false;
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process.StartInfo.RedirectStandardOutput = true;
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process.StartInfo.FileName = "git";
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process.StartInfo.WorkingDirectory = LocalPath;
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process.StartInfo.Arguments = "config --get remote.origin.url";
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process.Start ();
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remote_origin_url = process.StandardOutput.ReadToEnd ().Trim ();
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return remote_origin_url;
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}
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// Creates a pretty commit message based on what has changed
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private string FormatCommitMessage ()
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{
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bool DoneAddCommit = false;
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bool DoneEditCommit = false;
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bool DoneRenameCommit = false;
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bool DoneDeleteCommit = false;
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int FilesAdded = 0;
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int FilesEdited = 0;
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int FilesRenamed = 0;
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int FilesDeleted = 0;
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Process.StartInfo.Arguments = "status";
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Process.Start ();
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string Output = Process.StandardOutput.ReadToEnd ();
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foreach (string line in Regex.Split (Output, "\n")) {
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if (line.IndexOf ("new file:") > -1)
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FilesAdded++;
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if (line.IndexOf ("modified:") > -1)
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FilesEdited++;
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if (line.IndexOf ("renamed:") > -1)
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FilesRenamed++;
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if (line.IndexOf ("deleted:") > -1)
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FilesDeleted++;
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}
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foreach (string line in Regex.Split (Output, "\n")) {
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// Format message for when files are added,
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// example: "added 'file' and 3 more."
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if (line.IndexOf ("new file:") > -1 && !DoneAddCommit) {
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DoneAddCommit = true;
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if (FilesAdded > 1)
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return "added ‘" +
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line.Replace ("#\tnew file:", "").Trim () +
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"’\nand " + (FilesAdded - 1) + " more.";
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else
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return "added ‘" +
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line.Replace ("#\tnew file:", "").Trim () + "’.";
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}
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// Format message for when files are edited,
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// example: "edited 'file'."
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if (line.IndexOf ("modified:") > -1 && !DoneEditCommit) {
|
||
DoneEditCommit = true;
|
||
if (FilesEdited > 1)
|
||
return "edited ‘" +
|
||
line.Replace ("#\tmodified:", "").Trim () +
|
||
"’\nand " + (FilesEdited - 1) + " more.";
|
||
else
|
||
return "edited ‘" +
|
||
line.Replace ("#\tmodified:", "").Trim () + "’.";
|
||
}
|
||
|
||
// Format message for when files are edited,
|
||
// example: "deleted 'file'."
|
||
if (line.IndexOf ("deleted:") > -1 && !DoneDeleteCommit) {
|
||
DoneDeleteCommit = true;
|
||
if (FilesDeleted > 1)
|
||
return "deleted ‘" +
|
||
line.Replace ("#\tdeleted:", "").Trim () +
|
||
"’\nand " + (FilesDeleted - 1) + " more.";
|
||
else
|
||
return "deleted ‘" +
|
||
line.Replace ("#\tdeleted:", "").Trim () + "’.";
|
||
}
|
||
|
||
// Format message for when files are renamed,
|
||
// example: "renamed 'file' to 'new name'."
|
||
if (line.IndexOf ("renamed:") > -1 && !DoneRenameCommit) {
|
||
DoneDeleteCommit = true;
|
||
if (FilesRenamed > 1)
|
||
return "renamed ‘" +
|
||
line.Replace ("#\trenamed:", "").Trim ().Replace
|
||
(" -> ", "’ to ‘") + "’ and " + (FilesDeleted - 1) +
|
||
" more.";
|
||
else
|
||
return "renamed ‘" +
|
||
line.Replace ("#\trenamed:", "").Trim ().Replace
|
||
(" -> ", "’ to ‘") + "’.";
|
||
}
|
||
|
||
}
|
||
|
||
// Nothing happened:
|
||
return "";
|
||
|
||
}
|
||
|
||
}
|
||
|
||
// Arguments for most events
|
||
public class SparkleEventArgs : System.EventArgs {
|
||
|
||
public string Type;
|
||
public string Message;
|
||
|
||
public SparkleEventArgs (string type)
|
||
{
|
||
|
||
Type = type;
|
||
|
||
}
|
||
|
||
}
|
||
|
||
|
||
// Arguments for the NewCommit event
|
||
public class NewCommitArgs : System.EventArgs {
|
||
|
||
public string Author;
|
||
public string Email;
|
||
public string Message;
|
||
|
||
public NewCommitArgs (string author, string email, string message)
|
||
{
|
||
|
||
Author = author;
|
||
Email = email;
|
||
Message = message;
|
||
|
||
}
|
||
|
||
}
|
||
|
||
}
|