summaryrefslogtreecommitdiff
path: root/src/plugins/cvs/cvseditor.cpp
blob: 268c5cfed7519ae7b7cb4a50f5961276a296fd48 (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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/

#include "cvseditor.h"
#include "cvsutils.h"

#include "annotationhighlighter.h"
#include "cvsconstants.h"

#include <utils/qtcassert.h>
#include <vcsbase/diffandloghighlighter.h>

#include <QDebug>
#include <QTextCursor>
#include <QTextBlock>

namespace Cvs {
namespace Internal {

// Match a CVS revision ("1.1.1.1")
#define CVS_REVISION_PATTERN "[\\d\\.]+"
#define CVS_REVISION_AT_START_PATTERN "^(" CVS_REVISION_PATTERN ") "

CvsEditorWidget::CvsEditorWidget() :
    m_revisionAnnotationPattern(QLatin1String(CVS_REVISION_AT_START_PATTERN ".*$")),
    m_revisionLogPattern(QLatin1String("^revision  *(" CVS_REVISION_PATTERN ")$"))
{
    QTC_ASSERT(m_revisionAnnotationPattern.isValid(), return);
    QTC_ASSERT(m_revisionLogPattern.isValid(), return);
    /* Diff format:
    \code
    cvs diff -d -u -r1.1 -r1.2:
    --- mainwindow.cpp<\t>13 Jul 2009 13:50:15 -0000<tab>1.1
    +++ mainwindow.cpp<\t>14 Jul 2009 07:09:24 -0000<tab>1.2
    @@ -6,6 +6,5 @@
    \endcode
    */
    setDiffFilePattern(QRegExp(QLatin1String("^[-+]{3} ([^\\t]+)")));
    setLogEntryPattern(QRegExp(QLatin1String("^revision (.+)$")));
    setAnnotateRevisionTextFormat(tr("Annotate revision \"%1\""));
}

QSet<QString> CvsEditorWidget::annotationChanges() const
{
    QSet<QString> changes;
    const QString txt = toPlainText();
    if (txt.isEmpty())
        return changes;
    // Hunt for first change number in annotation: "1.1 (author)"
    QRegExp r(QLatin1String(CVS_REVISION_AT_START_PATTERN));
    QTC_ASSERT(r.isValid(), return changes);
    if (r.indexIn(txt) != -1) {
        changes.insert(r.cap(1));
        r.setPattern(QLatin1String("\n(" CVS_REVISION_PATTERN ") "));
        QTC_ASSERT(r.isValid(), return changes);
        int pos = 0;
        while ((pos = r.indexIn(txt, pos)) != -1) {
            pos += r.matchedLength();
            changes.insert(r.cap(1));
        }
    }
    if (Constants::debug)
        qDebug() << "CVSEditor::annotationChanges() returns #" << changes.size();
    return changes;
}

QString CvsEditorWidget::changeUnderCursor(const QTextCursor &c) const
{
    // Try to match "1.1" strictly:
    // 1) Annotation: Check for a revision number at the beginning of the line.
    //    Note that "cursor.select(QTextCursor::WordUnderCursor)" will
    //    only select the part up until the dot.
    //    Check if we are at the beginning of a line within a reasonable offset.
    // 2) Log: check for lines like "revision 1.1", cursor past "revision"
    switch (contentType()) {
    case VcsBase::OtherContent:
    case VcsBase::DiffOutput:
        break;
    case VcsBase::AnnotateOutput: {
            const QTextBlock block = c.block();
            if (c.atBlockStart() || (c.position() - block.position() < 3)) {
                const QString line = block.text();
                if (m_revisionAnnotationPattern.exactMatch(line))
                    return m_revisionAnnotationPattern.cap(1);
            }
        }
        break;
    case VcsBase::LogOutput: {
            const QTextBlock block = c.block();
            if (c.position() - block.position() > 8 && m_revisionLogPattern.exactMatch(block.text()))
                return m_revisionLogPattern.cap(1);
        }
        break;
    }
    return QString();
}

VcsBase::BaseAnnotationHighlighter *CvsEditorWidget::createAnnotationHighlighter(const QSet<QString> &changes) const
{
    return new CvsAnnotationHighlighter(changes);
}

QStringList CvsEditorWidget::annotationPreviousVersions(const QString &revision) const
{
    if (isFirstRevision(revision))
        return QStringList();
    return QStringList(previousRevision(revision));
}

}
}