lean_ctx/tools/
ctx_tree.rs

1use std::path::Path;
2
3use ignore::WalkBuilder;
4
5use crate::core::protocol;
6use crate::core::tokens::count_tokens;
7
8pub fn handle(path: &str, depth: usize, show_hidden: bool) -> (String, usize) {
9    let root = Path::new(path);
10    if !root.is_dir() {
11        return (format!("ERROR: {path} is not a directory"), 0);
12    }
13
14    let raw_output = generate_raw_tree(root);
15    let compact_output = generate_compact_tree(root, depth, show_hidden);
16
17    let raw_tokens = count_tokens(&raw_output);
18    let compact_tokens = count_tokens(&compact_output);
19    let savings = protocol::format_savings(raw_tokens, compact_tokens);
20
21    (format!("{compact_output}\n{savings}"), raw_tokens)
22}
23
24fn generate_compact_tree(root: &Path, max_depth: usize, show_hidden: bool) -> String {
25    let mut lines = Vec::new();
26    let mut entries: Vec<(usize, String, bool, usize)> = Vec::new();
27
28    let walker = WalkBuilder::new(root)
29        .hidden(!show_hidden)
30        .git_ignore(true)
31        .git_global(true)
32        .git_exclude(true)
33        .max_depth(Some(max_depth))
34        .sort_by_file_name(|a, b| a.cmp(b))
35        .build();
36
37    for entry in walker.filter_map(|e| e.ok()) {
38        if entry.depth() == 0 {
39            continue;
40        }
41
42        let name = entry.file_name().to_string_lossy().to_string();
43
44        let depth = entry.depth();
45        let is_dir = entry.file_type().is_some_and(|ft| ft.is_dir());
46
47        let file_count = if is_dir {
48            count_files_in_dir(entry.path())
49        } else {
50            0
51        };
52
53        entries.push((depth, name, is_dir, file_count));
54    }
55
56    for (depth, name, is_dir, file_count) in &entries {
57        let indent = "  ".repeat(depth.saturating_sub(1));
58        if *is_dir {
59            lines.push(format!("{indent}{name}/ ({file_count})"));
60        } else {
61            lines.push(format!("{indent}{name}"));
62        }
63    }
64
65    lines.join("\n")
66}
67
68fn generate_raw_tree(root: &Path) -> String {
69    let mut lines = Vec::new();
70
71    let walker = WalkBuilder::new(root)
72        .hidden(true)
73        .git_ignore(true)
74        .git_global(true)
75        .git_exclude(true)
76        .sort_by_file_name(|a, b| a.cmp(b))
77        .build();
78
79    for entry in walker.filter_map(|e| e.ok()) {
80        if entry.depth() == 0 {
81            continue;
82        }
83        lines.push(
84            entry
85                .path()
86                .strip_prefix(root)
87                .unwrap_or(entry.path())
88                .to_string_lossy()
89                .to_string(),
90        );
91    }
92
93    lines.join("\n")
94}
95
96fn count_files_in_dir(dir: &Path) -> usize {
97    WalkBuilder::new(dir)
98        .hidden(true)
99        .git_ignore(true)
100        .build()
101        .filter_map(|e| e.ok())
102        .filter(|e| e.file_type().is_some_and(|ft| ft.is_file()))
103        .count()
104}
lean_ctx/tools/ctx_tree.rs

lean_ctx/tools/
ctx_tree.rs
