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Viewing changes to contrib/NGit/NGit.Util/FS_Win32.cs

  • Committer: Bazaar Package Importer
  • Author(s): Jo Shields
  • Date: 2011-06-27 17:03:13 UTC
  • mto: (1.8.1 upstream)
  • mto: This revision was merged to the branch mainline in revision 54.
  • Revision ID: james.westby@ubuntu.com-20110627170313-6cvz3s19x6e9hqe9
Import upstream version 2.5.92+dfsg

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contrib/NGit/NGit.Util/FS_Win32.cs
 
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/*
 
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This code is derived from jgit (http://eclipse.org/jgit).
 
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Copyright owners are documented in jgit's IP log.
 
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This program and the accompanying materials are made available
 
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under the terms of the Eclipse Distribution License v1.0 which
 
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accompanies this distribution, is reproduced below, and is
 
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available at http://www.eclipse.org/org/documents/edl-v10.php
 
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All rights reserved.
 
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Redistribution and use in source and binary forms, with or
 
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without modification, are permitted provided that the following
 
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conditions are met:
 
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- Redistributions of source code must retain the above copyright
 
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  notice, this list of conditions and the following disclaimer.
 
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- Redistributions in binary form must reproduce the above
 
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  copyright notice, this list of conditions and the following
 
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  disclaimer in the documentation and/or other materials provided
 
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  with the distribution.
 
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- Neither the name of the Eclipse Foundation, Inc. nor the
 
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  names of its contributors may be used to endorse or promote
 
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  products derived from this software without specific prior
 
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  written permission.
 
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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*/
 
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using System.Collections.Generic;
 
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using System.Diagnostics;
 
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using System.Text;
 
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using NGit.Util;
 
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using Sharpen;
 
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namespace NGit.Util
 
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{
 
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        internal class FS_Win32 : FS
 
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        {
 
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                internal static bool IsWin32()
 
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                {
 
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                        string osDotName = AccessController.DoPrivileged(new _PrivilegedAction_58());
 
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                        return osDotName != null && StringUtils.ToLowerCase(osDotName).IndexOf("windows")
 
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                                 != -1;
 
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                }
 
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                private sealed class _PrivilegedAction_58 : PrivilegedAction<string>
 
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                {
 
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                        public _PrivilegedAction_58()
 
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                        {
 
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                        }
 
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                        public string Run()
 
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                        {
 
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                                return Runtime.GetProperty("os.name");
 
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                        }
 
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                }
 
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                public FS_Win32() : base()
 
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                {
 
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                }
 
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                protected internal FS_Win32(FS src) : base(src)
 
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                {
 
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                }
 
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                public override FS NewInstance()
 
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                {
 
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                        return new NGit.Util.FS_Win32(this);
 
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                }
 
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                public override bool SupportsExecute()
 
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                {
 
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                        return false;
 
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                }
 
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                public override bool CanExecute(FilePath f)
 
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                {
 
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                        return false;
 
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                }
 
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                public override bool SetExecute(FilePath f, bool canExec)
 
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                {
 
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                        return false;
 
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                }
 
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                public override bool RetryFailedLockFileCommit()
 
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                {
 
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                        return true;
 
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                }
 
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                protected internal override FilePath DiscoverGitPrefix()
 
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                {
 
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                        string path = SystemReader.GetInstance().Getenv("PATH");
 
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                        FilePath gitExe = SearchPath(path, "git.exe", "git.cmd");
 
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                        if (gitExe != null)
 
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                        {
 
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                                return gitExe.GetParentFile().GetParentFile();
 
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                        }
 
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                        // This isn't likely to work, if bash is in $PATH, git should
 
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                        // also be in $PATH. But its worth trying.
 
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                        //
 
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                        string w = ReadPipe(UserHome(), new string[] { "bash", "--login", "-c", "which git"
 
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                                 }, Encoding.Default.Name());
 
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                        //
 
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                        //
 
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                        if (w != null)
 
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                        {
 
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                                // The path may be in cygwin/msys notation so resolve it right away
 
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                                gitExe = Resolve(null, w);
 
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                                if (gitExe != null)
 
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                                {
 
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                                        return gitExe.GetParentFile().GetParentFile();
 
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                                }
 
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                        }
 
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                        return null;
 
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                }
 
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                protected internal override FilePath UserHomeImpl()
 
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                {
 
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                        string home = SystemReader.GetInstance().Getenv("HOME");
 
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                        if (home != null)
 
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                        {
 
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                                return Resolve(null, home);
 
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                        }
 
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                        string homeDrive = SystemReader.GetInstance().Getenv("HOMEDRIVE");
 
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                        if (homeDrive != null)
 
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                        {
 
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                                string homePath = SystemReader.GetInstance().Getenv("HOMEPATH");
 
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                                return new FilePath(homeDrive, homePath);
 
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                        }
 
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                        string homeShare = SystemReader.GetInstance().Getenv("HOMESHARE");
 
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                        if (homeShare != null)
 
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                        {
 
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                                return new FilePath(homeShare);
 
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                        }
 
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                        return base.UserHomeImpl();
 
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                }
 
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                public override ProcessStartInfo RunInShell(string cmd, string[] args)
 
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                {
 
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                        IList<string> argv = new AList<string>(3 + args.Length);
 
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                        argv.AddItem("cmd.exe");
 
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                        argv.AddItem("/c");
 
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                        argv.AddItem(cmd);
 
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                        Sharpen.Collections.AddAll(argv, Arrays.AsList(args));
 
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                        ProcessStartInfo proc = new ProcessStartInfo();
 
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                        proc.SetCommand(argv);
 
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                        return proc;
 
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                }
 
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        }
 
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}