180 lines
5 KiB
C#
180 lines
5 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 Gtk;
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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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namespace SparkleShare {
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public class SparkleDiff
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{
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// Short alias for the translations
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public static string _ (string s)
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{
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return Catalog.GetString (s);
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}
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// Finds out the path relative to the Git root directory
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public static string GetPathFromGitRoot (string file_path)
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{
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string git_root = GetGitRoot (file_path);
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return file_path.Substring (git_root.Length + 1);
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}
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// Finds out the path relative to the Git root directory
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public static string GetGitRoot (string file_path)
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{
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file_path = System.IO.Path.GetDirectoryName (file_path);
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while (file_path != null) {
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if (Directory.Exists (System.IO.Path.Combine (file_path, ".git")))
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return file_path;
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file_path = Directory.GetParent (file_path).FullName;
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}
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return null;
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}
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public static void Main (string [] args)
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{
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Catalog.Init (Defines.GETTEXT_PACKAGE, Defines.LOCALE_DIR);
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// Check whether git is installed
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Process Process = new Process ();
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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.Start ();
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if (Process.StandardOutput.ReadToEnd ().IndexOf ("version") == -1) {
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Console.WriteLine (_("Git wasn't found."));
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Console.WriteLine (_("You can get Git from http://git-scm.com/."));
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Environment.Exit (0);
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}
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UnixUserInfo UnixUserInfo = new UnixUserInfo (UnixEnvironment.UserName);
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// Don't allow running as root
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if (UnixUserInfo.UserId == 0) {
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Console.WriteLine (_("Sorry, you can't run SparkleShare with these permissions."));
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Console.WriteLine (_("Things would go utterly wrong."));
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Environment.Exit (0);
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}
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if (args.Length > 0) {
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if (args [0].Equals ("--help") || args [0].Equals ("-h")) {
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ShowHelp ();
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Environment.Exit (0);
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}
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string file_path = System.IO.Path.GetFullPath (args [0]);
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if (File.Exists (file_path)) {
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Gtk.Application.Init ();
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string [] revisions = GetRevisionsForFilePath (file_path);
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// Quit if the given file doesn't have any history
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if (revisions.Length < 2) {
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Console.WriteLine ("SparkleDiff: " + file_path + ": File has no history.");
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Environment.Exit (-1);
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}
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SparkleDiffWindow sparkle_diff_window;
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sparkle_diff_window = new SparkleDiffWindow (file_path, revisions);
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sparkle_diff_window.ShowAll ();
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// The main loop
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Gtk.Application.Run ();
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} else {
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Console.WriteLine ("SparkleDiff: " + file_path + ": No such file or directory.");
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Environment.Exit (-1);
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}
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} else {
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ShowHelp ();
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}
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}
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// Gets a list of all earlier revisions of this file
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public static string [] GetRevisionsForFilePath (string file_path)
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{
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Process process = new Process ();
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process.EnableRaisingEvents = true;
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process.StartInfo.RedirectStandardOutput = true;
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process.StartInfo.UseShellExecute = false;
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process.StartInfo.WorkingDirectory = SparkleDiff.GetGitRoot (file_path);
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process.StartInfo.FileName = "git";
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process.StartInfo.Arguments = "log --format=\"%H\" " + SparkleDiff.GetPathFromGitRoot (file_path);
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process.Start ();
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string output = process.StandardOutput.ReadToEnd ();
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string [] revisions = Regex.Split (output.Trim (), "\n");
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return revisions;
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}
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// Prints the help output
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public static void ShowHelp ()
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{
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Console.WriteLine (_("SparkleDiff Copyright (C) 2010 Hylke Bons"));
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Console.WriteLine (" ");
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Console.WriteLine (_("This program comes with ABSOLUTELY NO WARRANTY."));
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Console.WriteLine (_("This is free software, and you are welcome to redistribute it "));
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Console.WriteLine (_("under certain conditions. Please read the GNU GPLv3 for details."));
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Console.WriteLine (" ");
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Console.WriteLine (_("SparkleDiff let's you compare revisions of an image file side by side."));
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Console.WriteLine (" ");
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Console.WriteLine (_("Usage: sparklediff [FILE]"));
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Console.WriteLine (_("Open an image file to show its revisions"));
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Console.WriteLine (" ");
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Console.WriteLine (_("Arguments:"));
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Console.WriteLine (_("\t -h, --help\t\tDisplay this help text."));
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Console.WriteLine (" ");
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}
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}
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}
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