1use crate::{AgentTool, ToolCallEventStream};
2use agent_client_protocol as acp;
3use anyhow::{Result, anyhow};
4use gpui::{App, AppContext, Entity, SharedString, Task};
5use language_model::LanguageModelToolResultContent;
6use project::Project;
7use schemars::JsonSchema;
8use serde::{Deserialize, Serialize};
9use std::fmt::Write;
10use std::{cmp, path::PathBuf, sync::Arc};
11use util::paths::PathMatcher;
12
13/// Fast file path pattern matching tool that works with any codebase size
14///
15/// - Supports glob patterns like "**/*.js" or "src/**/*.ts"
16/// - Returns matching file paths sorted alphabetically
17/// - Prefer the `grep` tool to this tool when searching for symbols unless you have specific information about paths.
18/// - Use this tool when you need to find files by name patterns
19/// - Results are paginated with 50 matches per page. Use the optional 'offset' parameter to request subsequent pages.
20#[derive(Debug, Serialize, Deserialize, JsonSchema)]
21pub struct FindPathToolInput {
22 /// The glob to match against every path in the project.
23 ///
24 /// <example>
25 /// If the project has the following root directories:
26 ///
27 /// - directory1/a/something.txt
28 /// - directory2/a/things.txt
29 /// - directory3/a/other.txt
30 ///
31 /// You can get back the first two paths by providing a glob of "*thing*.txt"
32 /// </example>
33 pub glob: String,
34 /// Optional starting position for paginated results (0-based).
35 /// When not provided, starts from the beginning.
36 #[serde(default)]
37 pub offset: usize,
38}
39
40#[derive(Debug, Serialize, Deserialize)]
41pub struct FindPathToolOutput {
42 offset: usize,
43 current_matches_page: Vec<PathBuf>,
44 all_matches_len: usize,
45}
46
47impl From<FindPathToolOutput> for LanguageModelToolResultContent {
48 fn from(output: FindPathToolOutput) -> Self {
49 if output.current_matches_page.is_empty() {
50 "No matches found".into()
51 } else {
52 let mut llm_output = format!("Found {} total matches.", output.all_matches_len);
53 if output.all_matches_len > RESULTS_PER_PAGE {
54 write!(
55 &mut llm_output,
56 "\nShowing results {}-{} (provide 'offset' parameter for more results):",
57 output.offset + 1,
58 output.offset + output.current_matches_page.len()
59 )
60 .unwrap();
61 }
62
63 for mat in output.current_matches_page {
64 write!(&mut llm_output, "\n{}", mat.display()).unwrap();
65 }
66
67 llm_output.into()
68 }
69 }
70}
71
72const RESULTS_PER_PAGE: usize = 50;
73
74pub struct FindPathTool {
75 project: Entity<Project>,
76}
77
78impl FindPathTool {
79 pub const fn new(project: Entity<Project>) -> Self {
80 Self { project }
81 }
82}
83
84impl AgentTool for FindPathTool {
85 type Input = FindPathToolInput;
86 type Output = FindPathToolOutput;
87
88 fn name() -> &'static str {
89 "find_path"
90 }
91
92 fn kind() -> acp::ToolKind {
93 acp::ToolKind::Search
94 }
95
96 fn initial_title(
97 &self,
98 input: Result<Self::Input, serde_json::Value>,
99 _cx: &mut App,
100 ) -> SharedString {
101 let mut title = "Find paths".to_string();
102 if let Ok(input) = input {
103 title.push_str(&format!(" matching “`{}`”", input.glob));
104 }
105 title.into()
106 }
107
108 fn run(
109 self: Arc<Self>,
110 input: Self::Input,
111 event_stream: ToolCallEventStream,
112 cx: &mut App,
113 ) -> Task<Result<FindPathToolOutput>> {
114 let search_paths_task = search_paths(&input.glob, self.project.clone(), cx);
115
116 cx.background_spawn(async move {
117 let matches = search_paths_task.await?;
118 let paginated_matches: &[PathBuf] = &matches[cmp::min(input.offset, matches.len())
119 ..cmp::min(input.offset + RESULTS_PER_PAGE, matches.len())];
120
121 event_stream.update_fields(acp::ToolCallUpdateFields {
122 title: Some(if paginated_matches.is_empty() {
123 "No matches".into()
124 } else if paginated_matches.len() == 1 {
125 "1 match".into()
126 } else {
127 format!("{} matches", paginated_matches.len())
128 }),
129 content: Some(
130 paginated_matches
131 .iter()
132 .map(|path| acp::ToolCallContent::Content {
133 content: acp::ContentBlock::ResourceLink(acp::ResourceLink {
134 uri: format!("file://{}", path.display()),
135 name: path.to_string_lossy().into(),
136 annotations: None,
137 description: None,
138 mime_type: None,
139 size: None,
140 title: None,
141 meta: None,
142 }),
143 })
144 .collect(),
145 ),
146 ..Default::default()
147 });
148
149 Ok(FindPathToolOutput {
150 offset: input.offset,
151 current_matches_page: paginated_matches.to_vec(),
152 all_matches_len: matches.len(),
153 })
154 })
155 }
156}
157
158fn search_paths(glob: &str, project: Entity<Project>, cx: &mut App) -> Task<Result<Vec<PathBuf>>> {
159 let path_style = project.read(cx).path_style(cx);
160 let path_matcher = match PathMatcher::new(
161 [
162 // Sometimes models try to search for "". In this case, return all paths in the project.
163 if glob.is_empty() { "*" } else { glob },
164 ],
165 path_style,
166 ) {
167 Ok(matcher) => matcher,
168 Err(err) => return Task::ready(Err(anyhow!("Invalid glob: {err}"))),
169 };
170 let snapshots: Vec<_> = project
171 .read(cx)
172 .worktrees(cx)
173 .map(|worktree| worktree.read(cx).snapshot())
174 .collect();
175
176 cx.background_spawn(async move {
177 let mut results = Vec::new();
178 for snapshot in snapshots {
179 for entry in snapshot.entries(false, 0) {
180 if path_matcher.is_match(snapshot.root_name().join(&entry.path).as_std_path()) {
181 results.push(snapshot.absolutize(&entry.path));
182 }
183 }
184 }
185
186 Ok(results)
187 })
188}
189
190#[cfg(test)]
191mod test {
192 use super::*;
193 use gpui::TestAppContext;
194 use project::{FakeFs, Project};
195 use settings::SettingsStore;
196 use util::path;
197
198 #[gpui::test]
199 async fn test_find_path_tool(cx: &mut TestAppContext) {
200 init_test(cx);
201
202 let fs = FakeFs::new(cx.executor());
203 fs.insert_tree(
204 "/root",
205 serde_json::json!({
206 "apple": {
207 "banana": {
208 "carrot": "1",
209 },
210 "bandana": {
211 "carbonara": "2",
212 },
213 "endive": "3"
214 }
215 }),
216 )
217 .await;
218 let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
219
220 let matches = cx
221 .update(|cx| search_paths("root/**/car*", project.clone(), cx))
222 .await
223 .unwrap();
224 assert_eq!(
225 matches,
226 &[
227 PathBuf::from(path!("/root/apple/banana/carrot")),
228 PathBuf::from(path!("/root/apple/bandana/carbonara"))
229 ]
230 );
231
232 let matches = cx
233 .update(|cx| search_paths("**/car*", project.clone(), cx))
234 .await
235 .unwrap();
236 assert_eq!(
237 matches,
238 &[
239 PathBuf::from(path!("/root/apple/banana/carrot")),
240 PathBuf::from(path!("/root/apple/bandana/carbonara"))
241 ]
242 );
243 }
244
245 fn init_test(cx: &mut TestAppContext) {
246 cx.update(|cx| {
247 let settings_store = SettingsStore::test(cx);
248 cx.set_global(settings_store);
249 language::init(cx);
250 Project::init_settings(cx);
251 });
252 }
253}