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//
// FileLogger.cs: Logs to file
//
// Author:
// Marek Sieradzki (marek.sieradzki@gmail.com)
// Ankit Jain (jankit@novell.com)
//
// (C) 2005 Marek Sieradzki
// Copyright 2011 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
using System;
using System.IO;
using System.Text;
using Microsoft.Build.Framework;
#if MICROSOFT_BUILD_DLL
namespace Microsoft.Build.Logging
#else
namespace Microsoft.Build.BuildEngine
#endif
{
public class FileLogger : ConsoleLogger {
StreamWriter sw;
string logfile;
string encoding = null;
IEventSource eventSource;
public FileLogger ()
{
base.Verbosity = LoggerVerbosity.Detailed;
}
public override void Initialize (IEventSource eventSource)
{
this.eventSource = eventSource;
logfile = "msbuild.log";
bool append = false;
string key, value;
string[] splittedParameters = Parameters.Split (new char [] {';'}, StringSplitOptions.RemoveEmptyEntries);
foreach (string s in splittedParameters) {
if (String.Compare (s, "Append") == 0) {
append = true;
continue;
}
if (s.StartsWith ("Encoding")) {
if (!TrySplitKeyValuePair (s, out key, out value))
throw new LoggerException ("Encoding should be specified as: Encoding=<encoding>, eg. Encoding=UTF-8");
if (String.IsNullOrEmpty (value))
throw new LoggerException ("Encoding must be non-empty");
encoding = value;
continue;
}
if (s.StartsWith ("LogFile")) {
if (!TrySplitKeyValuePair (s, out key, out value))
throw new LoggerException ("LogFile should be specified as: LogFile=<encoding>, eg. LogFile=foo.log");
if (String.IsNullOrEmpty (value))
throw new LoggerException ("LogFile value must be non-empty");
logfile = value;
continue;
}
}
// Attach *our* HandleBuildStarted as the first one,
// as it needs to create the writer!
eventSource.BuildStarted += HandleBuildStarted;
base.Initialize (eventSource);
// Attach *our* HandleBuildFinished as the last one,
// as it needs to close the writer!
eventSource.BuildFinished += HandleBuildFinished;
CreateWriter (append);
}
void CreateWriter (bool append_to)
{
if (sw != null)
return;
if (!String.IsNullOrEmpty (encoding))
sw = new StreamWriter (logfile, append_to, Encoding.GetEncoding (encoding));
else
sw = new StreamWriter (logfile, append_to, Encoding.Default);
WriteHandler = sw.WriteLine;
}
void HandleBuildStarted (object sender, BuildStartedEventArgs args)
{
CreateWriter (true);
}
void HandleBuildFinished (object sender, BuildFinishedEventArgs args)
{
base.WriteHandler = null;
if (sw != null) {
sw.Close ();
sw = null;
}
}
bool TrySplitKeyValuePair (string pair, out string key, out string value)
{
key = value = null;
string[] parts = pair.Split ('=');
if (parts.Length != 2)
return false;
key = parts [0];
value = parts [1];
return true;
}
public override void Shutdown ()
{
base.WriteHandler = null;
if (sw != null) {
sw.Close ();
sw = null;
}
if (eventSource != null) {
eventSource.BuildStarted -= HandleBuildStarted;
eventSource.BuildFinished -= HandleBuildFinished;
}
base.Shutdown ();
}
}
}
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