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/***************************************************************************************************
Copyright (C) 2024 The Qt Company Ltd.
SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
***************************************************************************************************/
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
namespace QtVsTools.Core
{
public class QMakeConf
{
public Hashtable Entries { get; }
public string QMakeSpecDirectory { get; }
public QMakeConf(string qtVersionDir, QMakeQuery qmakeQuery = null)
{
Entries = new Hashtable();
QMakeSpecDirectory = Path.Combine(qtVersionDir, "mkspecs", "default");
var qmakeConf = Path.Combine(QMakeSpecDirectory, "qmake.conf");
// Starting from Qt5 beta2 there is no more "\\mkspecs\\default" folder available
// To find location of "qmake.conf" there is a need to run "qmake -query" command
// This is what happens below.
if (!File.Exists(qmakeConf)) {
qmakeQuery ??= new QMakeQuery(qtVersionDir);
string qtPrefix = qmakeQuery["QT_INSTALL_PREFIX"];
if (string.IsNullOrEmpty(qtPrefix))
throw new KeyNotFoundException("qmake error: no value for QT_INSTALL_PREFIX");
string qtArchData = qmakeQuery["QT_INSTALL_ARCHDATA"];
if (string.IsNullOrEmpty(qtArchData))
throw new KeyNotFoundException("qmake error: no value for QT_INSTALL_ARCHDATA");
string qmakeXSpec = qmakeQuery["QMAKE_XSPEC"];
if (string.IsNullOrEmpty(qtArchData))
throw new KeyNotFoundException("qmake error: no value for QMAKE_XSPEC");
qmakeConf = Path.Combine(qtPrefix, qtArchData, "mkspecs", qmakeXSpec, "qmake.conf");
if (!File.Exists(qmakeConf)) {
// Check if this is a shadow build of Qt.
qtPrefix = qmakeQuery["QT_INSTALL_PREFIX/src"];
if (string.IsNullOrEmpty(qtPrefix))
throw new KeyNotFoundException("qmake error: no value for QT_INSTALL_PREFIX/src");
qtArchData = qmakeQuery["QT_INSTALL_ARCHDATA/src"];
if (string.IsNullOrEmpty(qtArchData))
throw new KeyNotFoundException("qmake error: no value for QT_INSTALL_ARCHDATA/src");
qmakeConf = Path.Combine(qtPrefix, qtArchData, "mkspecs", qmakeXSpec, "qmake.conf");
}
if (!File.Exists(qmakeConf))
throw new KeyNotFoundException("qmake.conf expected at " + qmakeConf + " not found");
}
ParseFile(qmakeConf);
}
private void ParseFile(string filename)
{
var fileInfo = new FileInfo(filename);
if (fileInfo.Exists) {
var streamReader = new StreamReader(filename);
while (streamReader.ReadLine() is {} line) {
line = line.Trim();
var commentStartIndex = line.IndexOf('#');
if (commentStartIndex >= 0)
line = line.Remove(commentStartIndex);
var pos = line.IndexOf('=');
if (pos > 0) {
var op = "=";
if (line[pos - 1] == '+' || line[pos - 1] == '-')
op = line[pos - 1] + "=";
var lineKey = line.Substring(0, pos - op.Length + 1).Trim();
var lineValue = ExpandVariables(line.Substring(pos + 1).Trim());
if (op == "+=") {
Entries[lineKey] += " " + lineValue;
} else if (op == "-=") {
foreach (var remval in lineValue.Split(' ', '\t'))
RemoveValue(lineKey, remval);
} else {
Entries[lineKey] = lineValue;
}
} else if (line.StartsWith("include", StringComparison.Ordinal)) {
pos = line.IndexOf('(');
var posEnd = line.LastIndexOf(')');
if (pos > 0 && pos < posEnd) {
var filenameToInclude = line.Substring(pos + 1, posEnd - pos - 1);
var saveCurrentDir = Environment.CurrentDirectory;
Environment.CurrentDirectory = fileInfo.Directory.FullName;
var fileInfoToInclude = new FileInfo(filenameToInclude);
if (fileInfoToInclude.Exists)
ParseFile(fileInfoToInclude.FullName);
Environment.CurrentDirectory = saveCurrentDir;
}
}
}
streamReader.Close();
RemoveValue("QMAKE_LFLAGS_CONSOLE", "@QMAKE_SUBSYSTEM_SUFFIX@");
RemoveValue("QMAKE_LFLAGS_WINDOWS", "@QMAKE_SUBSYSTEM_SUFFIX@");
}
}
private string ExpandVariables(string value)
{
var pos = value.IndexOf("$$", StringComparison.Ordinal);
while (pos != -1) {
var startPos = pos + 2;
var endPos = startPos;
if (value[startPos] != '[') { // at the moment no handling of qmake internal variables
for (; endPos < value.Length; ++endPos) {
if ((Char.IsPunctuation(value[endPos]) && value[endPos] != '_')
|| Char.IsWhiteSpace(value[endPos])) {
break;
}
}
if (endPos > startPos) {
var varName = value.Substring(startPos, endPos - startPos);
var varValue = (Entries[varName] ?? string.Empty).ToString();
value = value.Substring(0, pos) + varValue + value.Substring(endPos);
endPos = pos + varValue.Length;
}
}
pos = value.IndexOf("$$", endPos, StringComparison.Ordinal);
}
return value;
}
private void RemoveValue(string key, string valueToRemove)
{
var pos = -1;
if (!Entries.Contains(key))
return;
var value = Entries[key].ToString();
do {
pos = value.IndexOf(valueToRemove, StringComparison.Ordinal);
if (pos >= 0)
value = value.Remove(pos, valueToRemove.Length);
} while (pos >= 0);
Entries[key] = value;
}
}
}
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