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lean_ctx/cli/
common.rs

1pub(crate) fn print_savings(original: usize, sent: usize) {
2    let saved = original.saturating_sub(sent);
3    if original > 0 && saved > 0 {
4        let pct = (saved as f64 / original as f64 * 100.0).round() as usize;
5        println!("[{saved} tok saved ({pct}%)]");
6    }
7}
8
9pub fn load_shell_history_pub() -> Vec<String> {
10    load_shell_history()
11}
12
13pub(crate) fn load_shell_history() -> Vec<String> {
14    let shell = std::env::var("SHELL").unwrap_or_default();
15    let Some(home) = dirs::home_dir() else {
16        return Vec::new();
17    };
18
19    let history_file = if shell.contains("zsh") {
20        home.join(".zsh_history")
21    } else if shell.contains("fish") {
22        home.join(".local/share/fish/fish_history")
23    } else if cfg!(windows) && shell.is_empty() {
24        home.join("AppData")
25            .join("Roaming")
26            .join("Microsoft")
27            .join("Windows")
28            .join("PowerShell")
29            .join("PSReadLine")
30            .join("ConsoleHost_history.txt")
31    } else {
32        home.join(".bash_history")
33    };
34
35    match std::fs::read_to_string(&history_file) {
36        Ok(content) => content
37            .lines()
38            .filter_map(|l| {
39                let trimmed = l.trim();
40                if trimmed.starts_with(':') {
41                    trimmed
42                        .split(';')
43                        .nth(1)
44                        .map(std::string::ToString::to_string)
45                } else {
46                    Some(trimmed.to_string())
47                }
48            })
49            .filter(|l| !l.is_empty())
50            .collect(),
51        Err(_) => Vec::new(),
52    }
53}
54
55pub(crate) fn format_tokens_cli(tokens: u64) -> String {
56    if tokens >= 1_000_000 {
57        format!("{:.1}M", tokens as f64 / 1_000_000.0)
58    } else if tokens >= 1_000 {
59        format!("{:.1}K", tokens as f64 / 1_000.0)
60    } else {
61        format!("{tokens}")
62    }
63}