grep_tool.rs

   1use crate::{AgentTool, ToolCallEventStream};
   2use agent_client_protocol as acp;
   3use anyhow::{Result, anyhow};
   4use futures::StreamExt;
   5use gpui::{App, Entity, SharedString, Task};
   6use language::{OffsetRangeExt, ParseStatus, Point};
   7use project::{
   8    Project, WorktreeSettings,
   9    search::{SearchQuery, SearchResult},
  10};
  11use schemars::JsonSchema;
  12use serde::{Deserialize, Serialize};
  13use settings::Settings;
  14use std::{cmp, fmt::Write, sync::Arc};
  15use util::RangeExt;
  16use util::markdown::MarkdownInlineCode;
  17use util::paths::PathMatcher;
  18
  19/// Searches the contents of files in the project with a regular expression
  20///
  21/// - Prefer this tool to path search when searching for symbols in the project, because you won't need to guess what path it's in.
  22/// - Supports full regex syntax (eg. "log.*Error", "function\\s+\\w+", etc.)
  23/// - Pass an `include_pattern` if you know how to narrow your search on the files system
  24/// - Never use this tool to search for paths. Only search file contents with this tool.
  25/// - Use this tool when you need to find files containing specific patterns
  26/// - Results are paginated with 20 matches per page. Use the optional 'offset' parameter to request subsequent pages.
  27/// - DO NOT use HTML entities solely to escape characters in the tool parameters.
  28#[derive(Debug, Serialize, Deserialize, JsonSchema)]
  29pub struct GrepToolInput {
  30    /// A regex pattern to search for in the entire project. Note that the regex
  31    /// will be parsed by the Rust `regex` crate.
  32    ///
  33    /// Do NOT specify a path here! This will only be matched against the code **content**.
  34    pub regex: String,
  35    /// A glob pattern for the paths of files to include in the search.
  36    /// Supports standard glob patterns like "**/*.rs" or "src/**/*.ts".
  37    /// If omitted, all files in the project will be searched.
  38    pub include_pattern: Option<String>,
  39    /// Optional starting position for paginated results (0-based).
  40    /// When not provided, starts from the beginning.
  41    #[serde(default)]
  42    pub offset: u32,
  43    /// Whether the regex is case-sensitive. Defaults to false (case-insensitive).
  44    #[serde(default)]
  45    pub case_sensitive: bool,
  46}
  47
  48impl GrepToolInput {
  49    /// Which page of search results this is.
  50    pub fn page(&self) -> u32 {
  51        1 + (self.offset / RESULTS_PER_PAGE)
  52    }
  53}
  54
  55const RESULTS_PER_PAGE: u32 = 20;
  56
  57pub struct GrepTool {
  58    project: Entity<Project>,
  59}
  60
  61impl GrepTool {
  62    pub fn new(project: Entity<Project>) -> Self {
  63        Self { project }
  64    }
  65}
  66
  67impl AgentTool for GrepTool {
  68    type Input = GrepToolInput;
  69    type Output = String;
  70
  71    fn name(&self) -> SharedString {
  72        "grep".into()
  73    }
  74
  75    fn kind(&self) -> acp::ToolKind {
  76        acp::ToolKind::Search
  77    }
  78
  79    fn initial_title(&self, input: Result<Self::Input, serde_json::Value>) -> SharedString {
  80        match input {
  81            Ok(input) => {
  82                let page = input.page();
  83                let regex_str = MarkdownInlineCode(&input.regex);
  84                let case_info = if input.case_sensitive {
  85                    " (case-sensitive)"
  86                } else {
  87                    ""
  88                };
  89
  90                if page > 1 {
  91                    format!("Get page {page} of search results for regex {regex_str}{case_info}")
  92                } else {
  93                    format!("Search files for regex {regex_str}{case_info}")
  94                }
  95            }
  96            Err(_) => "Search with regex".into(),
  97        }
  98        .into()
  99    }
 100
 101    fn run(
 102        self: Arc<Self>,
 103        input: Self::Input,
 104        _event_stream: ToolCallEventStream,
 105        cx: &mut App,
 106    ) -> Task<Result<Self::Output>> {
 107        const CONTEXT_LINES: u32 = 2;
 108        const MAX_ANCESTOR_LINES: u32 = 10;
 109
 110        let include_matcher = match PathMatcher::new(
 111            input
 112                .include_pattern
 113                .as_ref()
 114                .into_iter()
 115                .collect::<Vec<_>>(),
 116        ) {
 117            Ok(matcher) => matcher,
 118            Err(error) => {
 119                return Task::ready(Err(anyhow!("invalid include glob pattern: {error}")));
 120            }
 121        };
 122
 123        // Exclude global file_scan_exclusions and private_files settings
 124        let exclude_matcher = {
 125            let global_settings = WorktreeSettings::get_global(cx);
 126            let exclude_patterns = global_settings
 127                .file_scan_exclusions
 128                .sources()
 129                .iter()
 130                .chain(global_settings.private_files.sources().iter());
 131
 132            match PathMatcher::new(exclude_patterns) {
 133                Ok(matcher) => matcher,
 134                Err(error) => {
 135                    return Task::ready(Err(anyhow!("invalid exclude pattern: {error}")));
 136                }
 137            }
 138        };
 139
 140        let query = match SearchQuery::regex(
 141            &input.regex,
 142            false,
 143            input.case_sensitive,
 144            false,
 145            false,
 146            include_matcher,
 147            exclude_matcher,
 148            true, // Always match file include pattern against *full project paths* that start with a project root.
 149            None,
 150        ) {
 151            Ok(query) => query,
 152            Err(error) => return Task::ready(Err(error)),
 153        };
 154
 155        let results = self
 156            .project
 157            .update(cx, |project, cx| project.search(query, cx));
 158
 159        let project = self.project.downgrade();
 160        cx.spawn(async move |cx|  {
 161            futures::pin_mut!(results);
 162
 163            let mut output = String::new();
 164            let mut skips_remaining = input.offset;
 165            let mut matches_found = 0;
 166            let mut has_more_matches = false;
 167
 168            'outer: while let Some(SearchResult::Buffer { buffer, ranges }) = results.next().await {
 169                if ranges.is_empty() {
 170                    continue;
 171                }
 172
 173                let Ok((Some(path), mut parse_status)) = buffer.read_with(cx, |buffer, cx| {
 174                    (buffer.file().map(|file| file.full_path(cx)), buffer.parse_status())
 175                }) else {
 176                    continue;
 177                };
 178
 179                // Check if this file should be excluded based on its worktree settings
 180                if let Ok(Some(project_path)) = project.read_with(cx, |project, cx| {
 181                    project.find_project_path(&path, cx)
 182                })
 183                    && cx.update(|cx| {
 184                        let worktree_settings = WorktreeSettings::get(Some((&project_path).into()), cx);
 185                        worktree_settings.is_path_excluded(&project_path.path)
 186                            || worktree_settings.is_path_private(&project_path.path)
 187                    }).unwrap_or(false) {
 188                        continue;
 189                    }
 190
 191                while *parse_status.borrow() != ParseStatus::Idle {
 192                    parse_status.changed().await?;
 193                }
 194
 195                let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot())?;
 196
 197                let mut ranges = ranges
 198                    .into_iter()
 199                    .map(|range| {
 200                        let matched = range.to_point(&snapshot);
 201                        let matched_end_line_len = snapshot.line_len(matched.end.row);
 202                        let full_lines = Point::new(matched.start.row, 0)..Point::new(matched.end.row, matched_end_line_len);
 203                        let symbols = snapshot.symbols_containing(matched.start, None);
 204
 205                        if let Some(ancestor_node) = snapshot.syntax_ancestor(full_lines.clone()) {
 206                            let full_ancestor_range = ancestor_node.byte_range().to_point(&snapshot);
 207                            let end_row = full_ancestor_range.end.row.min(full_ancestor_range.start.row + MAX_ANCESTOR_LINES);
 208                            let end_col = snapshot.line_len(end_row);
 209                            let capped_ancestor_range = Point::new(full_ancestor_range.start.row, 0)..Point::new(end_row, end_col);
 210
 211                            if capped_ancestor_range.contains_inclusive(&full_lines) {
 212                                return (capped_ancestor_range, Some(full_ancestor_range), symbols)
 213                            }
 214                        }
 215
 216                        let mut matched = matched;
 217                        matched.start.column = 0;
 218                        matched.start.row =
 219                            matched.start.row.saturating_sub(CONTEXT_LINES);
 220                        matched.end.row = cmp::min(
 221                            snapshot.max_point().row,
 222                            matched.end.row + CONTEXT_LINES,
 223                        );
 224                        matched.end.column = snapshot.line_len(matched.end.row);
 225
 226                        (matched, None, symbols)
 227                    })
 228                    .peekable();
 229
 230                let mut file_header_written = false;
 231
 232                while let Some((mut range, ancestor_range, parent_symbols)) = ranges.next(){
 233                    if skips_remaining > 0 {
 234                        skips_remaining -= 1;
 235                        continue;
 236                    }
 237
 238                    // We'd already found a full page of matches, and we just found one more.
 239                    if matches_found >= RESULTS_PER_PAGE {
 240                        has_more_matches = true;
 241                        break 'outer;
 242                    }
 243
 244                    while let Some((next_range, _, _)) = ranges.peek() {
 245                        if range.end.row >= next_range.start.row {
 246                            range.end = next_range.end;
 247                            ranges.next();
 248                        } else {
 249                            break;
 250                        }
 251                    }
 252
 253                    if !file_header_written {
 254                        writeln!(output, "\n## Matches in {}", path.display())?;
 255                        file_header_written = true;
 256                    }
 257
 258                    let end_row = range.end.row;
 259                    output.push_str("\n### ");
 260
 261                    if let Some(parent_symbols) = &parent_symbols {
 262                        for symbol in parent_symbols {
 263                            write!(output, "{} › ", symbol.text)?;
 264                        }
 265                    }
 266
 267                    if range.start.row == end_row {
 268                        writeln!(output, "L{}", range.start.row + 1)?;
 269                    } else {
 270                        writeln!(output, "L{}-{}", range.start.row + 1, end_row + 1)?;
 271                    }
 272
 273                    output.push_str("```\n");
 274                    output.extend(snapshot.text_for_range(range));
 275                    output.push_str("\n```\n");
 276
 277                    if let Some(ancestor_range) = ancestor_range
 278                        && end_row < ancestor_range.end.row {
 279                            let remaining_lines = ancestor_range.end.row - end_row;
 280                            writeln!(output, "\n{} lines remaining in ancestor node. Read the file to see all.", remaining_lines)?;
 281                        }
 282
 283                    matches_found += 1;
 284                }
 285            }
 286
 287            if matches_found == 0 {
 288                Ok("No matches found".into())
 289            } else if has_more_matches {
 290                Ok(format!(
 291                    "Showing matches {}-{} (there were more matches found; use offset: {} to see next page):\n{output}",
 292                    input.offset + 1,
 293                    input.offset + matches_found,
 294                    input.offset + RESULTS_PER_PAGE,
 295                ))
 296            } else {
 297                Ok(format!("Found {matches_found} matches:\n{output}"))
 298            }
 299        })
 300    }
 301}
 302
 303#[cfg(test)]
 304mod tests {
 305    use crate::ToolCallEventStream;
 306
 307    use super::*;
 308    use gpui::{TestAppContext, UpdateGlobal};
 309    use language::{Language, LanguageConfig, LanguageMatcher};
 310    use project::{FakeFs, Project, WorktreeSettings};
 311    use serde_json::json;
 312    use settings::SettingsStore;
 313    use unindent::Unindent;
 314    use util::path;
 315
 316    #[gpui::test]
 317    async fn test_grep_tool_with_include_pattern(cx: &mut TestAppContext) {
 318        init_test(cx);
 319        cx.executor().allow_parking();
 320
 321        let fs = FakeFs::new(cx.executor());
 322        fs.insert_tree(
 323            path!("/root"),
 324            serde_json::json!({
 325                "src": {
 326                    "main.rs": "fn main() {\n    println!(\"Hello, world!\");\n}",
 327                    "utils": {
 328                        "helper.rs": "fn helper() {\n    println!(\"I'm a helper!\");\n}",
 329                    },
 330                },
 331                "tests": {
 332                    "test_main.rs": "fn test_main() {\n    assert!(true);\n}",
 333                }
 334            }),
 335        )
 336        .await;
 337
 338        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
 339
 340        // Test with include pattern for Rust files inside the root of the project
 341        let input = GrepToolInput {
 342            regex: "println".to_string(),
 343            include_pattern: Some("root/**/*.rs".to_string()),
 344            offset: 0,
 345            case_sensitive: false,
 346        };
 347
 348        let result = run_grep_tool(input, project.clone(), cx).await;
 349        assert!(result.contains("main.rs"), "Should find matches in main.rs");
 350        assert!(
 351            result.contains("helper.rs"),
 352            "Should find matches in helper.rs"
 353        );
 354        assert!(
 355            !result.contains("test_main.rs"),
 356            "Should not include test_main.rs even though it's a .rs file (because it doesn't have the pattern)"
 357        );
 358
 359        // Test with include pattern for src directory only
 360        let input = GrepToolInput {
 361            regex: "fn".to_string(),
 362            include_pattern: Some("root/**/src/**".to_string()),
 363            offset: 0,
 364            case_sensitive: false,
 365        };
 366
 367        let result = run_grep_tool(input, project.clone(), cx).await;
 368        assert!(
 369            result.contains("main.rs"),
 370            "Should find matches in src/main.rs"
 371        );
 372        assert!(
 373            result.contains("helper.rs"),
 374            "Should find matches in src/utils/helper.rs"
 375        );
 376        assert!(
 377            !result.contains("test_main.rs"),
 378            "Should not include test_main.rs as it's not in src directory"
 379        );
 380
 381        // Test with empty include pattern (should default to all files)
 382        let input = GrepToolInput {
 383            regex: "fn".to_string(),
 384            include_pattern: None,
 385            offset: 0,
 386            case_sensitive: false,
 387        };
 388
 389        let result = run_grep_tool(input, project.clone(), cx).await;
 390        assert!(result.contains("main.rs"), "Should find matches in main.rs");
 391        assert!(
 392            result.contains("helper.rs"),
 393            "Should find matches in helper.rs"
 394        );
 395        assert!(
 396            result.contains("test_main.rs"),
 397            "Should include test_main.rs"
 398        );
 399    }
 400
 401    #[gpui::test]
 402    async fn test_grep_tool_with_case_sensitivity(cx: &mut TestAppContext) {
 403        init_test(cx);
 404        cx.executor().allow_parking();
 405
 406        let fs = FakeFs::new(cx.executor());
 407        fs.insert_tree(
 408            path!("/root"),
 409            serde_json::json!({
 410                "case_test.txt": "This file has UPPERCASE and lowercase text.\nUPPERCASE patterns should match only with case_sensitive: true",
 411            }),
 412        )
 413        .await;
 414
 415        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
 416
 417        // Test case-insensitive search (default)
 418        let input = GrepToolInput {
 419            regex: "uppercase".to_string(),
 420            include_pattern: Some("**/*.txt".to_string()),
 421            offset: 0,
 422            case_sensitive: false,
 423        };
 424
 425        let result = run_grep_tool(input, project.clone(), cx).await;
 426        assert!(
 427            result.contains("UPPERCASE"),
 428            "Case-insensitive search should match uppercase"
 429        );
 430
 431        // Test case-sensitive search
 432        let input = GrepToolInput {
 433            regex: "uppercase".to_string(),
 434            include_pattern: Some("**/*.txt".to_string()),
 435            offset: 0,
 436            case_sensitive: true,
 437        };
 438
 439        let result = run_grep_tool(input, project.clone(), cx).await;
 440        assert!(
 441            !result.contains("UPPERCASE"),
 442            "Case-sensitive search should not match uppercase"
 443        );
 444
 445        // Test case-sensitive search
 446        let input = GrepToolInput {
 447            regex: "LOWERCASE".to_string(),
 448            include_pattern: Some("**/*.txt".to_string()),
 449            offset: 0,
 450            case_sensitive: true,
 451        };
 452
 453        let result = run_grep_tool(input, project.clone(), cx).await;
 454
 455        assert!(
 456            !result.contains("lowercase"),
 457            "Case-sensitive search should match lowercase"
 458        );
 459
 460        // Test case-sensitive search for lowercase pattern
 461        let input = GrepToolInput {
 462            regex: "lowercase".to_string(),
 463            include_pattern: Some("**/*.txt".to_string()),
 464            offset: 0,
 465            case_sensitive: true,
 466        };
 467
 468        let result = run_grep_tool(input, project.clone(), cx).await;
 469        assert!(
 470            result.contains("lowercase"),
 471            "Case-sensitive search should match lowercase text"
 472        );
 473    }
 474
 475    /// Helper function to set up a syntax test environment
 476    async fn setup_syntax_test(cx: &mut TestAppContext) -> Entity<Project> {
 477        use unindent::Unindent;
 478        init_test(cx);
 479        cx.executor().allow_parking();
 480
 481        let fs = FakeFs::new(cx.executor());
 482
 483        // Create test file with syntax structures
 484        fs.insert_tree(
 485            path!("/root"),
 486            serde_json::json!({
 487                "test_syntax.rs": r#"
 488                    fn top_level_function() {
 489                        println!("This is at the top level");
 490                    }
 491
 492                    mod feature_module {
 493                        pub mod nested_module {
 494                            pub fn nested_function(
 495                                first_arg: String,
 496                                second_arg: i32,
 497                            ) {
 498                                println!("Function in nested module");
 499                                println!("{first_arg}");
 500                                println!("{second_arg}");
 501                            }
 502                        }
 503                    }
 504
 505                    struct MyStruct {
 506                        field1: String,
 507                        field2: i32,
 508                    }
 509
 510                    impl MyStruct {
 511                        fn method_with_block() {
 512                            let condition = true;
 513                            if condition {
 514                                println!("Inside if block");
 515                            }
 516                        }
 517
 518                        fn long_function() {
 519                            println!("Line 1");
 520                            println!("Line 2");
 521                            println!("Line 3");
 522                            println!("Line 4");
 523                            println!("Line 5");
 524                            println!("Line 6");
 525                            println!("Line 7");
 526                            println!("Line 8");
 527                            println!("Line 9");
 528                            println!("Line 10");
 529                            println!("Line 11");
 530                            println!("Line 12");
 531                        }
 532                    }
 533
 534                    trait Processor {
 535                        fn process(&self, input: &str) -> String;
 536                    }
 537
 538                    impl Processor for MyStruct {
 539                        fn process(&self, input: &str) -> String {
 540                            format!("Processed: {}", input)
 541                        }
 542                    }
 543                "#.unindent().trim(),
 544            }),
 545        )
 546        .await;
 547
 548        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
 549
 550        project.update(cx, |project, _cx| {
 551            project.languages().add(rust_lang().into())
 552        });
 553
 554        project
 555    }
 556
 557    #[gpui::test]
 558    async fn test_grep_top_level_function(cx: &mut TestAppContext) {
 559        let project = setup_syntax_test(cx).await;
 560
 561        // Test: Line at the top level of the file
 562        let input = GrepToolInput {
 563            regex: "This is at the top level".to_string(),
 564            include_pattern: Some("**/*.rs".to_string()),
 565            offset: 0,
 566            case_sensitive: false,
 567        };
 568
 569        let result = run_grep_tool(input, project.clone(), cx).await;
 570        let expected = r#"
 571            Found 1 matches:
 572
 573            ## Matches in root/test_syntax.rs
 574
 575            ### fn top_level_function › L1-3
 576            ```
 577            fn top_level_function() {
 578                println!("This is at the top level");
 579            }
 580            ```
 581            "#
 582        .unindent();
 583        assert_eq!(result, expected);
 584    }
 585
 586    #[gpui::test]
 587    async fn test_grep_function_body(cx: &mut TestAppContext) {
 588        let project = setup_syntax_test(cx).await;
 589
 590        // Test: Line inside a function body
 591        let input = GrepToolInput {
 592            regex: "Function in nested module".to_string(),
 593            include_pattern: Some("**/*.rs".to_string()),
 594            offset: 0,
 595            case_sensitive: false,
 596        };
 597
 598        let result = run_grep_tool(input, project.clone(), cx).await;
 599        let expected = r#"
 600            Found 1 matches:
 601
 602            ## Matches in root/test_syntax.rs
 603
 604            ### mod feature_module › pub mod nested_module › pub fn nested_function › L10-14
 605            ```
 606                    ) {
 607                        println!("Function in nested module");
 608                        println!("{first_arg}");
 609                        println!("{second_arg}");
 610                    }
 611            ```
 612            "#
 613        .unindent();
 614        assert_eq!(result, expected);
 615    }
 616
 617    #[gpui::test]
 618    async fn test_grep_function_args_and_body(cx: &mut TestAppContext) {
 619        let project = setup_syntax_test(cx).await;
 620
 621        // Test: Line with a function argument
 622        let input = GrepToolInput {
 623            regex: "second_arg".to_string(),
 624            include_pattern: Some("**/*.rs".to_string()),
 625            offset: 0,
 626            case_sensitive: false,
 627        };
 628
 629        let result = run_grep_tool(input, project.clone(), cx).await;
 630        let expected = r#"
 631            Found 1 matches:
 632
 633            ## Matches in root/test_syntax.rs
 634
 635            ### mod feature_module › pub mod nested_module › pub fn nested_function › L7-14
 636            ```
 637                    pub fn nested_function(
 638                        first_arg: String,
 639                        second_arg: i32,
 640                    ) {
 641                        println!("Function in nested module");
 642                        println!("{first_arg}");
 643                        println!("{second_arg}");
 644                    }
 645            ```
 646            "#
 647        .unindent();
 648        assert_eq!(result, expected);
 649    }
 650
 651    #[gpui::test]
 652    async fn test_grep_if_block(cx: &mut TestAppContext) {
 653        use unindent::Unindent;
 654        let project = setup_syntax_test(cx).await;
 655
 656        // Test: Line inside an if block
 657        let input = GrepToolInput {
 658            regex: "Inside if block".to_string(),
 659            include_pattern: Some("**/*.rs".to_string()),
 660            offset: 0,
 661            case_sensitive: false,
 662        };
 663
 664        let result = run_grep_tool(input, project.clone(), cx).await;
 665        let expected = r#"
 666            Found 1 matches:
 667
 668            ## Matches in root/test_syntax.rs
 669
 670            ### impl MyStruct › fn method_with_block › L26-28
 671            ```
 672                    if condition {
 673                        println!("Inside if block");
 674                    }
 675            ```
 676            "#
 677        .unindent();
 678        assert_eq!(result, expected);
 679    }
 680
 681    #[gpui::test]
 682    async fn test_grep_long_function_top(cx: &mut TestAppContext) {
 683        use unindent::Unindent;
 684        let project = setup_syntax_test(cx).await;
 685
 686        // Test: Line in the middle of a long function - should show message about remaining lines
 687        let input = GrepToolInput {
 688            regex: "Line 5".to_string(),
 689            include_pattern: Some("**/*.rs".to_string()),
 690            offset: 0,
 691            case_sensitive: false,
 692        };
 693
 694        let result = run_grep_tool(input, project.clone(), cx).await;
 695        let expected = r#"
 696            Found 1 matches:
 697
 698            ## Matches in root/test_syntax.rs
 699
 700            ### impl MyStruct › fn long_function › L31-41
 701            ```
 702                fn long_function() {
 703                    println!("Line 1");
 704                    println!("Line 2");
 705                    println!("Line 3");
 706                    println!("Line 4");
 707                    println!("Line 5");
 708                    println!("Line 6");
 709                    println!("Line 7");
 710                    println!("Line 8");
 711                    println!("Line 9");
 712                    println!("Line 10");
 713            ```
 714
 715            3 lines remaining in ancestor node. Read the file to see all.
 716            "#
 717        .unindent();
 718        assert_eq!(result, expected);
 719    }
 720
 721    #[gpui::test]
 722    async fn test_grep_long_function_bottom(cx: &mut TestAppContext) {
 723        use unindent::Unindent;
 724        let project = setup_syntax_test(cx).await;
 725
 726        // Test: Line in the long function
 727        let input = GrepToolInput {
 728            regex: "Line 12".to_string(),
 729            include_pattern: Some("**/*.rs".to_string()),
 730            offset: 0,
 731            case_sensitive: false,
 732        };
 733
 734        let result = run_grep_tool(input, project.clone(), cx).await;
 735        let expected = r#"
 736            Found 1 matches:
 737
 738            ## Matches in root/test_syntax.rs
 739
 740            ### impl MyStruct › fn long_function › L41-45
 741            ```
 742                    println!("Line 10");
 743                    println!("Line 11");
 744                    println!("Line 12");
 745                }
 746            }
 747            ```
 748            "#
 749        .unindent();
 750        assert_eq!(result, expected);
 751    }
 752
 753    async fn run_grep_tool(
 754        input: GrepToolInput,
 755        project: Entity<Project>,
 756        cx: &mut TestAppContext,
 757    ) -> String {
 758        let tool = Arc::new(GrepTool { project });
 759        let task = cx.update(|cx| tool.run(input, ToolCallEventStream::test().0, cx));
 760
 761        match task.await {
 762            Ok(result) => {
 763                if cfg!(windows) {
 764                    result.replace("root\\", "root/")
 765                } else {
 766                    result
 767                }
 768            }
 769            Err(e) => panic!("Failed to run grep tool: {}", e),
 770        }
 771    }
 772
 773    fn init_test(cx: &mut TestAppContext) {
 774        cx.update(|cx| {
 775            let settings_store = SettingsStore::test(cx);
 776            cx.set_global(settings_store);
 777            language::init(cx);
 778            Project::init_settings(cx);
 779        });
 780    }
 781
 782    fn rust_lang() -> Language {
 783        Language::new(
 784            LanguageConfig {
 785                name: "Rust".into(),
 786                matcher: LanguageMatcher {
 787                    path_suffixes: vec!["rs".to_string()],
 788                    ..Default::default()
 789                },
 790                ..Default::default()
 791            },
 792            Some(tree_sitter_rust::LANGUAGE.into()),
 793        )
 794        .with_outline_query(include_str!("../../../languages/src/rust/outline.scm"))
 795        .unwrap()
 796    }
 797
 798    #[gpui::test]
 799    async fn test_grep_security_boundaries(cx: &mut TestAppContext) {
 800        init_test(cx);
 801
 802        let fs = FakeFs::new(cx.executor());
 803
 804        fs.insert_tree(
 805            path!("/"),
 806            json!({
 807                "project_root": {
 808                    "allowed_file.rs": "fn main() { println!(\"This file is in the project\"); }",
 809                    ".mysecrets": "SECRET_KEY=abc123\nfn secret() { /* private */ }",
 810                    ".secretdir": {
 811                        "config": "fn special_configuration() { /* excluded */ }"
 812                    },
 813                    ".mymetadata": "fn custom_metadata() { /* excluded */ }",
 814                    "subdir": {
 815                        "normal_file.rs": "fn normal_file_content() { /* Normal */ }",
 816                        "special.privatekey": "fn private_key_content() { /* private */ }",
 817                        "data.mysensitive": "fn sensitive_data() { /* private */ }"
 818                    }
 819                },
 820                "outside_project": {
 821                    "sensitive_file.rs": "fn outside_function() { /* This file is outside the project */ }"
 822                }
 823            }),
 824        )
 825        .await;
 826
 827        cx.update(|cx| {
 828            use gpui::UpdateGlobal;
 829            use project::WorktreeSettings;
 830            use settings::SettingsStore;
 831            SettingsStore::update_global(cx, |store, cx| {
 832                store.update_user_settings::<WorktreeSettings>(cx, |settings| {
 833                    settings.file_scan_exclusions = Some(vec![
 834                        "**/.secretdir".to_string(),
 835                        "**/.mymetadata".to_string(),
 836                    ]);
 837                    settings.private_files = Some(vec![
 838                        "**/.mysecrets".to_string(),
 839                        "**/*.privatekey".to_string(),
 840                        "**/*.mysensitive".to_string(),
 841                    ]);
 842                });
 843            });
 844        });
 845
 846        let project = Project::test(fs.clone(), [path!("/project_root").as_ref()], cx).await;
 847
 848        // Searching for files outside the project worktree should return no results
 849        let result = run_grep_tool(
 850            GrepToolInput {
 851                regex: "outside_function".to_string(),
 852                include_pattern: None,
 853                offset: 0,
 854                case_sensitive: false,
 855            },
 856            project.clone(),
 857            cx,
 858        )
 859        .await;
 860        let paths = extract_paths_from_results(&result);
 861        assert!(
 862            paths.is_empty(),
 863            "grep_tool should not find files outside the project worktree"
 864        );
 865
 866        // Searching within the project should succeed
 867        let result = run_grep_tool(
 868            GrepToolInput {
 869                regex: "main".to_string(),
 870                include_pattern: None,
 871                offset: 0,
 872                case_sensitive: false,
 873            },
 874            project.clone(),
 875            cx,
 876        )
 877        .await;
 878        let paths = extract_paths_from_results(&result);
 879        assert!(
 880            paths.iter().any(|p| p.contains("allowed_file.rs")),
 881            "grep_tool should be able to search files inside worktrees"
 882        );
 883
 884        // Searching files that match file_scan_exclusions should return no results
 885        let result = run_grep_tool(
 886            GrepToolInput {
 887                regex: "special_configuration".to_string(),
 888                include_pattern: None,
 889                offset: 0,
 890                case_sensitive: false,
 891            },
 892            project.clone(),
 893            cx,
 894        )
 895        .await;
 896        let paths = extract_paths_from_results(&result);
 897        assert!(
 898            paths.is_empty(),
 899            "grep_tool should not search files in .secretdir (file_scan_exclusions)"
 900        );
 901
 902        let result = run_grep_tool(
 903            GrepToolInput {
 904                regex: "custom_metadata".to_string(),
 905                include_pattern: None,
 906                offset: 0,
 907                case_sensitive: false,
 908            },
 909            project.clone(),
 910            cx,
 911        )
 912        .await;
 913        let paths = extract_paths_from_results(&result);
 914        assert!(
 915            paths.is_empty(),
 916            "grep_tool should not search .mymetadata files (file_scan_exclusions)"
 917        );
 918
 919        // Searching private files should return no results
 920        let result = run_grep_tool(
 921            GrepToolInput {
 922                regex: "SECRET_KEY".to_string(),
 923                include_pattern: None,
 924                offset: 0,
 925                case_sensitive: false,
 926            },
 927            project.clone(),
 928            cx,
 929        )
 930        .await;
 931        let paths = extract_paths_from_results(&result);
 932        assert!(
 933            paths.is_empty(),
 934            "grep_tool should not search .mysecrets (private_files)"
 935        );
 936
 937        let result = run_grep_tool(
 938            GrepToolInput {
 939                regex: "private_key_content".to_string(),
 940                include_pattern: None,
 941                offset: 0,
 942                case_sensitive: false,
 943            },
 944            project.clone(),
 945            cx,
 946        )
 947        .await;
 948        let paths = extract_paths_from_results(&result);
 949
 950        assert!(
 951            paths.is_empty(),
 952            "grep_tool should not search .privatekey files (private_files)"
 953        );
 954
 955        let result = run_grep_tool(
 956            GrepToolInput {
 957                regex: "sensitive_data".to_string(),
 958                include_pattern: None,
 959                offset: 0,
 960                case_sensitive: false,
 961            },
 962            project.clone(),
 963            cx,
 964        )
 965        .await;
 966        let paths = extract_paths_from_results(&result);
 967        assert!(
 968            paths.is_empty(),
 969            "grep_tool should not search .mysensitive files (private_files)"
 970        );
 971
 972        // Searching a normal file should still work, even with private_files configured
 973        let result = run_grep_tool(
 974            GrepToolInput {
 975                regex: "normal_file_content".to_string(),
 976                include_pattern: None,
 977                offset: 0,
 978                case_sensitive: false,
 979            },
 980            project.clone(),
 981            cx,
 982        )
 983        .await;
 984        let paths = extract_paths_from_results(&result);
 985        assert!(
 986            paths.iter().any(|p| p.contains("normal_file.rs")),
 987            "Should be able to search normal files"
 988        );
 989
 990        // Path traversal attempts with .. in include_pattern should not escape project
 991        let result = run_grep_tool(
 992            GrepToolInput {
 993                regex: "outside_function".to_string(),
 994                include_pattern: Some("../outside_project/**/*.rs".to_string()),
 995                offset: 0,
 996                case_sensitive: false,
 997            },
 998            project.clone(),
 999            cx,
1000        )
1001        .await;
1002        let paths = extract_paths_from_results(&result);
1003        assert!(
1004            paths.is_empty(),
1005            "grep_tool should not allow escaping project boundaries with relative paths"
1006        );
1007    }
1008
1009    #[gpui::test]
1010    async fn test_grep_with_multiple_worktree_settings(cx: &mut TestAppContext) {
1011        init_test(cx);
1012
1013        let fs = FakeFs::new(cx.executor());
1014
1015        // Create first worktree with its own private files
1016        fs.insert_tree(
1017            path!("/worktree1"),
1018            json!({
1019                ".zed": {
1020                    "settings.json": r#"{
1021                        "file_scan_exclusions": ["**/fixture.*"],
1022                        "private_files": ["**/secret.rs"]
1023                    }"#
1024                },
1025                "src": {
1026                    "main.rs": "fn main() { let secret_key = \"hidden\"; }",
1027                    "secret.rs": "const API_KEY: &str = \"secret_value\";",
1028                    "utils.rs": "pub fn get_config() -> String { \"config\".to_string() }"
1029                },
1030                "tests": {
1031                    "test.rs": "fn test_secret() { assert!(true); }",
1032                    "fixture.sql": "SELECT * FROM secret_table;"
1033                }
1034            }),
1035        )
1036        .await;
1037
1038        // Create second worktree with different private files
1039        fs.insert_tree(
1040            path!("/worktree2"),
1041            json!({
1042                ".zed": {
1043                    "settings.json": r#"{
1044                        "file_scan_exclusions": ["**/internal.*"],
1045                        "private_files": ["**/private.js", "**/data.json"]
1046                    }"#
1047                },
1048                "lib": {
1049                    "public.js": "export function getSecret() { return 'public'; }",
1050                    "private.js": "const SECRET_KEY = \"private_value\";",
1051                    "data.json": "{\"secret_data\": \"hidden\"}"
1052                },
1053                "docs": {
1054                    "README.md": "# Documentation with secret info",
1055                    "internal.md": "Internal secret documentation"
1056                }
1057            }),
1058        )
1059        .await;
1060
1061        // Set global settings
1062        cx.update(|cx| {
1063            SettingsStore::update_global(cx, |store, cx| {
1064                store.update_user_settings::<WorktreeSettings>(cx, |settings| {
1065                    settings.file_scan_exclusions =
1066                        Some(vec!["**/.git".to_string(), "**/node_modules".to_string()]);
1067                    settings.private_files = Some(vec!["**/.env".to_string()]);
1068                });
1069            });
1070        });
1071
1072        let project = Project::test(
1073            fs.clone(),
1074            [path!("/worktree1").as_ref(), path!("/worktree2").as_ref()],
1075            cx,
1076        )
1077        .await;
1078
1079        // Wait for worktrees to be fully scanned
1080        cx.executor().run_until_parked();
1081
1082        // Search for "secret" - should exclude files based on worktree-specific settings
1083        let result = run_grep_tool(
1084            GrepToolInput {
1085                regex: "secret".to_string(),
1086                include_pattern: None,
1087                offset: 0,
1088                case_sensitive: false,
1089            },
1090            project.clone(),
1091            cx,
1092        )
1093        .await;
1094        let paths = extract_paths_from_results(&result);
1095
1096        // Should find matches in non-private files
1097        assert!(
1098            paths.iter().any(|p| p.contains("main.rs")),
1099            "Should find 'secret' in worktree1/src/main.rs"
1100        );
1101        assert!(
1102            paths.iter().any(|p| p.contains("test.rs")),
1103            "Should find 'secret' in worktree1/tests/test.rs"
1104        );
1105        assert!(
1106            paths.iter().any(|p| p.contains("public.js")),
1107            "Should find 'secret' in worktree2/lib/public.js"
1108        );
1109        assert!(
1110            paths.iter().any(|p| p.contains("README.md")),
1111            "Should find 'secret' in worktree2/docs/README.md"
1112        );
1113
1114        // Should NOT find matches in private/excluded files based on worktree settings
1115        assert!(
1116            !paths.iter().any(|p| p.contains("secret.rs")),
1117            "Should not search in worktree1/src/secret.rs (local private_files)"
1118        );
1119        assert!(
1120            !paths.iter().any(|p| p.contains("fixture.sql")),
1121            "Should not search in worktree1/tests/fixture.sql (local file_scan_exclusions)"
1122        );
1123        assert!(
1124            !paths.iter().any(|p| p.contains("private.js")),
1125            "Should not search in worktree2/lib/private.js (local private_files)"
1126        );
1127        assert!(
1128            !paths.iter().any(|p| p.contains("data.json")),
1129            "Should not search in worktree2/lib/data.json (local private_files)"
1130        );
1131        assert!(
1132            !paths.iter().any(|p| p.contains("internal.md")),
1133            "Should not search in worktree2/docs/internal.md (local file_scan_exclusions)"
1134        );
1135
1136        // Test with `include_pattern` specific to one worktree
1137        let result = run_grep_tool(
1138            GrepToolInput {
1139                regex: "secret".to_string(),
1140                include_pattern: Some("worktree1/**/*.rs".to_string()),
1141                offset: 0,
1142                case_sensitive: false,
1143            },
1144            project.clone(),
1145            cx,
1146        )
1147        .await;
1148
1149        let paths = extract_paths_from_results(&result);
1150
1151        // Should only find matches in worktree1 *.rs files (excluding private ones)
1152        assert!(
1153            paths.iter().any(|p| p.contains("main.rs")),
1154            "Should find match in worktree1/src/main.rs"
1155        );
1156        assert!(
1157            paths.iter().any(|p| p.contains("test.rs")),
1158            "Should find match in worktree1/tests/test.rs"
1159        );
1160        assert!(
1161            !paths.iter().any(|p| p.contains("secret.rs")),
1162            "Should not find match in excluded worktree1/src/secret.rs"
1163        );
1164        assert!(
1165            paths.iter().all(|p| !p.contains("worktree2")),
1166            "Should not find any matches in worktree2"
1167        );
1168    }
1169
1170    // Helper function to extract file paths from grep results
1171    fn extract_paths_from_results(results: &str) -> Vec<String> {
1172        results
1173            .lines()
1174            .filter(|line| line.starts_with("## Matches in "))
1175            .map(|line| {
1176                line.strip_prefix("## Matches in ")
1177                    .unwrap()
1178                    .trim()
1179                    .to_string()
1180            })
1181            .collect()
1182    }
1183}