tuimux 0.1.7

A fast Rust TUI for everything tmux, with full CRUD support.
Documentation 
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
134
135
136
137
138
139
140
141
142
143
144
145
146

use anyhow::{Context, Result};

use crate::app::App;
use crate::app::export;
use crate::app::state::{ConfirmAction, Modal};
use crate::tmux::interface::{
    create_session_with_path, create_window_with_path, get_session, rename_window, session_exists,
};

#[derive(Debug, Default, Clone, Copy)]
struct RestoreCounters {
    created_sessions: usize,
    created_windows: usize,
    renamed_sessions: usize,
}

impl App {
    pub(super) fn restore_sessions(&mut self) {
        let backup_file = match export::import_sessions() {
            Ok(file) => file,
            Err(error) => {
                self.set_error_status(&format!("Restore failed: {error}"));
                return;
            }
        };

        let session_count = backup_file.sessions().len();
        let window_count = backup_file.sessions().iter().map(|session| session.windows.len()).sum::<usize>();
        self.state.modal = Some(Modal::Confirm {
            title: String::from("Confirm restore"),
            prompt: format!(
                "This will restore {session_count} sessions and {window_count} windows. Press y/Enter to continue, n/Esc to cancel"
            ),
            action: ConfirmAction::RunSessionRestore,
        });
    }

    pub(super) fn perform_restore_sessions(&mut self) {
        let backup_file = match export::import_sessions() {
            Ok(file) => file,
            Err(error) => {
                self.set_error_status(&format!("Restore failed: {error}"));
                return;
            }
        };

        let mut counters = RestoreCounters::default();
        let mut restore_errors: Vec<String> = Vec::new();

        for session_backup in backup_file.sessions() {
            let target_session_name = match Self::resolve_session_name_for_restore(&session_backup.name) {
                Ok(name) => {
                    if name != session_backup.name {
                        counters.renamed_sessions += 1;
                    }
                    name
                }
                Err(error) => {
                    self.set_error_status(&format!(
                        "Restore failed while resolving session {}: {error}",
                        session_backup.name
                    ));
                    return;
                }
            };

            match Self::restore_one_session(session_backup, &target_session_name) {
                Ok(created_windows) => {
                    counters.created_sessions += 1;
                    counters.created_windows += created_windows;
                }
                Err(error) => restore_errors.push(error.to_string()),
            }
        }

        self.refresh_sessions();
        if restore_errors.is_empty() {
            self.set_status(&format!(
                "Restore complete: created {} sessions and {} windows, renamed {} duplicate sessions",
                counters.created_sessions, counters.created_windows, counters.renamed_sessions
            ));
            return;
        }

        let first_error = restore_errors.first().map_or("unknown error", String::as_str);
        self.set_error_status(&format!(
            "Restore finished with {} errors: {}; created {} sessions and {} windows, renamed {} duplicate sessions",
            restore_errors.len(),
            first_error,
            counters.created_sessions,
            counters.created_windows,
            counters.renamed_sessions
        ));
    }

    fn resolve_session_name_for_restore(session_name: &str) -> Result<String> {
        if !session_exists(session_name)? {
            return Ok(session_name.to_string());
        }

        let mut suffix = 2usize;
        loop {
            let candidate = format!("{session_name}-restored-{suffix}");
            if !session_exists(&candidate)? {
                return Ok(candidate);
            }

            suffix += 1;
        }
    }

    fn restore_one_session(session_backup: &export::SessionRecord, target_session_name: &str) -> Result<usize> {
        if session_backup.windows.is_empty() {
            create_session_with_path(target_session_name, &session_backup.path)
                .with_context(|| format!("session {target_session_name}: create failed"))?;
            return Ok(0);
        }

        let first_window = &session_backup.windows[0];
        create_session_with_path(target_session_name, &first_window.path)
            .with_context(|| format!("session {target_session_name}: create failed"))?;

        let created_session = get_session(Some(target_session_name))
            .with_context(|| format!("session {target_session_name}: read after create failed"))?;

        let first_window_index = if let Some(window) = created_session.windows.first() {
            window.index.as_str()
        } else {
            anyhow::bail!("session {target_session_name}: created with no windows");
        };

        rename_window(target_session_name, first_window_index, &first_window.name)
            .with_context(|| format!("session {target_session_name}: rename first window failed"))?;

        let mut created_windows = 1usize;
        for window_backup in session_backup.windows.iter().skip(1) {
            if let Err(error) = create_window_with_path(target_session_name, &window_backup.name, &window_backup.path) {
                anyhow::bail!("session {target_session_name}: create window {} failed: {error}", window_backup.name);
            }

            created_windows += 1;
        }

        Ok(created_windows)
    }
}