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//
// ConsoleProgressMonitor.cs
//
// Author:
// Lluis Sanchez Gual
//
// Copyright (C) 2005 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;
namespace MonoDevelop.Core.ProgressMonitoring
{
public class ConsoleProgressMonitor: NullProgressMonitor
{
int columns = 0;
bool leaveOpen;
bool indent = true;
bool wrap = false;
int ilevel = 0;
int isize = 3;
int col = -1;
LogTextWriter logger;
bool ignoreLogMessages;
TextWriter writer;
string TimeStamp {
get { return EnableTimeStamp ? string.Format ("[{0}] ", DateTime.Now.ToString ("yyyy-MM-dd HH:mm:ss.f")) : string.Empty; }
}
public ConsoleProgressMonitor () : this (Console.Out, true)
{
//TODO: can we efficiently update Console.WindowWidth when it changes?
//when the output is redirected, Mono returns 0 but .NET throws IOException
if (Console.IsOutputRedirected)
columns = 0;
else
columns = Console.WindowWidth;
wrap = columns > 0;
}
public ConsoleProgressMonitor (TextWriter writer, bool leaveOpen)
{
this.writer = writer;
this.leaveOpen = leaveOpen;
logger = new LogTextWriter ();
logger.TextWritten += WriteLog;
}
public ConsoleProgressMonitor (TextWriter writer) : this (writer, false)
{
}
public override void Dispose ()
{
logger.TextWritten -= WriteLog;
logger.Dispose ();
if (!leaveOpen)
writer.Dispose ();
base.Dispose ();
}
public bool EnableTimeStamp {
get; set;
}
public bool WrapText {
get { return wrap; }
set { wrap = value; }
}
public bool IgnoreLogMessages {
get { return ignoreLogMessages; }
set { ignoreLogMessages = value; }
}
public int WrapColumns {
get { return columns; }
set { columns = value; }
}
public bool IndentTasks {
get { return indent; }
set { indent = value; }
}
public override void BeginTask (string name, int totalWork)
{
if (!ignoreLogMessages) {
WriteText (name);
Indent ();
}
}
public override void BeginStepTask (string name, int totalWork, int stepSize)
{
BeginTask (name, totalWork);
}
public override void EndTask ()
{
if (!ignoreLogMessages)
Unindent ();
}
void WriteLog (string text)
{
if (!ignoreLogMessages)
WriteText (text);
}
public override TextWriter Log {
get { return logger; }
}
public override void ReportSuccess (string message)
{
WriteText (message + "\n");
}
public override void ReportWarning (string message)
{
WriteText ("WARNING: " + message + "\n");
}
public override void ReportError (string message, Exception ex)
{
if (message == null && ex != null)
message = ex.Message;
else if (message != null && ex != null) {
if (!message.EndsWith (".")) message += ".";
message += " " + ex.Message;
}
WriteText ("ERROR: " + message + "\n");
}
void WriteText (string text)
{
if (indent)
WriteText (text, ilevel);
else
WriteText (text, 0);
}
void WriteText (string text, int leftMargin)
{
if (text == null)
return;
string timestamp = TimeStamp;
int maxCols = wrap ? columns - timestamp.Length : int.MaxValue;
int n = 0;
while (n < text.Length)
{
if (col == -1) {
writer.Write (timestamp + new string (' ', leftMargin));
col = leftMargin;
}
int lastWhite = -1;
int sn = n;
bool eol = false;
while (col < maxCols && n < text.Length) {
char c = text [n];
if (c == '\r') {
n++;
continue;
}
if (c == '\n') {
eol = true;
break;
}
if (char.IsWhiteSpace (c))
lastWhite = n;
col++;
n++;
}
if (lastWhite == -1 || col < maxCols)
lastWhite = n;
else if (col >= maxCols)
n = lastWhite + 1;
writer.Write (text.Substring (sn, lastWhite - sn));
if (eol || col >= maxCols) {
col = -1;
writer.WriteLine ();
if (eol) n++;
}
}
}
void Indent ()
{
ilevel += isize;
if (col != -1) {
writer.WriteLine ();
col = -1;
}
}
void Unindent ()
{
ilevel -= isize;
if (ilevel < 0) ilevel = 0;
if (col != -1) {
writer.WriteLine ();
col = -1;
}
}
}
}
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