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
|
/*
* qtmaildir - a Qt6 mail client for notmuch-indexed Maildirs
* Copyright (C) 2026 Danilo M. <danix@danix.xyz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <QObject>
#include <QProcess>
#include <QString>
/// Which half of the sync script is running.
///
/// The script runs mbsync and then `notmuch new`, so the phase is derived from
/// the output rather than announced: there is no side channel, and adding one
/// would mean the script and the app had to agree on a protocol.
enum class SyncPhase {
Starting, ///< Launched, nothing recognised yet.
Mbsync, ///< Fetching mail.
Notmuch, ///< Reindexing.
};
/// Derives a short status line from the sync script's output as it streams.
///
/// Kept separate from MailSync so it can be tested against captured output
/// without running a process, and free of any widget so the matching rules stay
/// one thing rather than being spread through a UI handler.
///
/// **Matching is deliberately loose.** mbsync's and notmuch's exact wording
/// varies by version, and a status line that goes blank because a string moved
/// is worse than the fixed "Syncing..." this replaces. Nothing here decides
/// whether the run succeeded: the exit status is the only authority on that, and
/// a second opinion derived from text would eventually disagree with it.
class SyncPhaseTracker
{
public:
/// Feeds one line. Returns true when the status text changed as a result,
/// so the caller can avoid rewriting the label for every line of noise.
bool feed(const QString &line);
/// Clears back to Starting for a new run.
void reset();
SyncPhase phase() const { return m_phase; }
/// Plain text, already truncated, safe to put straight into a label.
QString statusText() const { return m_status; }
private:
SyncPhase m_phase = SyncPhase::Starting;
QString m_status;
};
/// Runs the configured external sync command.
///
/// qtmaildir deliberately does not implement sync itself. The existing script
/// holds a flock that is the shared mutex between the user's cron sync, which
/// runs every 10 minutes, and any manual sync; running the script joins that
/// mutex, whereas a built-in implementation would sit outside it and could run
/// mbsync concurrently with cron, corrupting Maildir UID state.
class MailSync : public QObject
{
Q_OBJECT
public:
explicit MailSync(const QString &command, QObject *parent = nullptr);
/// False when no command is configured; the UI disables its Sync button.
bool isAvailable() const { return !m_command.isEmpty(); }
bool isRunning() const;
/// Returns false if unavailable or already running. A true return means the
/// process was handed to the event loop, not that it launched successfully:
/// a missing binary surfaces asynchronously through finished(false, ...).
bool start();
QString log() const { return m_log; }
signals:
void started();
void outputReceived(const QString &chunk);
void finished(bool success, int exitCode);
private:
void handleReadyRead();
void handleFinished(int exitCode, QProcess::ExitStatus status);
void handleError(QProcess::ProcessError error);
QString m_command;
QProcess m_process;
QString m_log;
};
|
