blob: 94a8fb910a2e354f2f48ecf2ae270c569e5aae52 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/**************************************************************************
**
** This file is part of Installer Framework
**
** Copyright (c) 2011-2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "linereplaceoperation.h"
#include <QtCore/QDir>
#include <QtCore/QFile>
#include <QtCore/QTextStream>
using namespace QInstaller;
LineReplaceOperation::LineReplaceOperation()
{
setName(QLatin1String("LineReplace"));
}
void LineReplaceOperation::backup()
{
}
bool LineReplaceOperation::performOperation()
{
const QStringList args = arguments();
// Arguments:
// 1. filename
// 2. startsWith Search-String
// 3. Replace-Line-String
if (args.count() != 3) {
setError(InvalidArguments);
setErrorString(tr("Invalid arguments in %0: %1 arguments given, exactly 3 expected.").arg(name()).arg(args
.count()));
return false;
}
const QString fileName = args.at(0);
const QString searchString = args.at(1);
const QString replaceString = args.at(2);
QFile file(fileName);
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
setError(UserDefinedError);
setErrorString(QObject::tr("Failed to open %1 for reading.").arg(fileName));
return false;
}
QString replacement;
QTextStream stream(&file);
while (!stream.atEnd()) {
const QString line = stream.readLine();
if (line.trimmed().startsWith(searchString))
replacement.append(replaceString + QLatin1String("\n"));
else
replacement.append(line + QLatin1String("\n"));
}
file.close();
if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
setError(UserDefinedError);
setErrorString(QObject::tr("Failed to open %1 for writing.").arg(fileName));
return false;
}
stream.setDevice(&file);
stream << replacement;
file.close();
return true;
}
bool LineReplaceOperation::undoOperation()
{
return true;
}
bool LineReplaceOperation::testOperation()
{
return true;
}
Operation *LineReplaceOperation::clone() const
{
return new LineReplaceOperation();
}
|
