424 lines · 14.3 KB · Rust
RawDownload
use crate::schema::json_schema_for;use anyhow::{Result, anyhow};use assistant_tool::{ActionLog, Tool, ToolResult};use futures::StreamExt;use gpui::{App, Entity, Task};use language::OffsetRangeExt;use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};use project::{    Project,    search::{SearchQuery, SearchResult},};use schemars::JsonSchema;use serde::{Deserialize, Serialize};use std::{cmp, fmt::Write, sync::Arc};use ui::IconName;use util::markdown::MarkdownString;use util::paths::PathMatcher; #[derive(Debug, Serialize, Deserialize, JsonSchema)]pub struct GrepToolInput {    /// A regex pattern to search for in the entire project. Note that the regex    /// will be parsed by the Rust `regex` crate.    pub regex: String,     /// A glob pattern for the paths of files to include in the search.    /// Supports standard glob patterns like "**/*.rs" or "src/**/*.ts".    /// If omitted, all files in the project will be searched.    pub include_pattern: Option<String>,     /// Optional starting position for paginated results (0-based).    /// When not provided, starts from the beginning.    #[serde(default)]    pub offset: u32,     /// Whether the regex is case-sensitive. Defaults to false (case-insensitive).    #[serde(default)]    pub case_sensitive: bool,} impl GrepToolInput {    /// Which page of search results this is.    pub fn page(&self) -> u32 {        1 + (self.offset / RESULTS_PER_PAGE)    }} const RESULTS_PER_PAGE: u32 = 20; pub struct GrepTool; impl Tool for GrepTool {    fn name(&self) -> String {        "grep".into()    }     fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {        false    }     fn description(&self) -> String {        include_str!("./grep_tool/description.md").into()    }     fn icon(&self) -> IconName {        IconName::Regex    }     fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {        json_schema_for::<GrepToolInput>(format)    }     fn ui_text(&self, input: &serde_json::Value) -> String {        match serde_json::from_value::<GrepToolInput>(input.clone()) {            Ok(input) => {                let page = input.page();                let regex_str = MarkdownString::inline_code(&input.regex);                let case_info = if input.case_sensitive {                    " (case-sensitive)"                } else {                    ""                };                 if page > 1 {                    format!("Get page {page} of search results for regex {regex_str}{case_info}")                } else {                    format!("Search files for regex {regex_str}{case_info}")                }            }            Err(_) => "Search with regex".to_string(),        }    }     fn run(        self: Arc<Self>,        input: serde_json::Value,        _messages: &[LanguageModelRequestMessage],        project: Entity<Project>,        _action_log: Entity<ActionLog>,        cx: &mut App,    ) -> ToolResult {        const CONTEXT_LINES: u32 = 2;         let input = match serde_json::from_value::<GrepToolInput>(input) {            Ok(input) => input,            Err(error) => {                return Task::ready(Err(anyhow!("Failed to parse input: {}", error))).into();            }        };         let include_matcher = match PathMatcher::new(            input                .include_pattern                .as_ref()                .into_iter()                .collect::<Vec<_>>(),        ) {            Ok(matcher) => matcher,            Err(error) => {                return Task::ready(Err(anyhow!("invalid include glob pattern: {}", error))).into();            }        };         let query = match SearchQuery::regex(            &input.regex,            false,            input.case_sensitive,            false,            false,            include_matcher,            PathMatcher::default(), // For now, keep it simple and don't enable an exclude pattern.            true, // Always match file include pattern against *full project paths* that start with a project root.            None,        ) {            Ok(query) => query,            Err(error) => return Task::ready(Err(error)).into(),        };         let results = project.update(cx, |project, cx| project.search(query, cx));         cx.spawn(async move|cx|  {            futures::pin_mut!(results);             let mut output = String::new();            let mut skips_remaining = input.offset;            let mut matches_found = 0;            let mut has_more_matches = false;             while let Some(SearchResult::Buffer { buffer, ranges }) = results.next().await {                if ranges.is_empty() {                    continue;                }                 buffer.read_with(cx, |buffer, cx| -> Result<(), anyhow::Error> {                    if let Some(path) = buffer.file().map(|file| file.full_path(cx)) {                        let mut file_header_written = false;                        let mut ranges = ranges                            .into_iter()                            .map(|range| {                                let mut point_range = range.to_point(buffer);                                point_range.start.row =                                    point_range.start.row.saturating_sub(CONTEXT_LINES);                                point_range.start.column = 0;                                point_range.end.row = cmp::min(                                    buffer.max_point().row,                                    point_range.end.row + CONTEXT_LINES,                                );                                point_range.end.column = buffer.line_len(point_range.end.row);                                point_range                            })                            .peekable();                         while let Some(mut range) = ranges.next() {                            if skips_remaining > 0 {                                skips_remaining -= 1;                                continue;                            }                             // We'd already found a full page of matches, and we just found one more.                            if matches_found >= RESULTS_PER_PAGE {                                has_more_matches = true;                                return Ok(());                            }                             while let Some(next_range) = ranges.peek() {                                if range.end.row >= next_range.start.row {                                    range.end = next_range.end;                                    ranges.next();                                } else {                                    break;                                }                            }                             if !file_header_written {                                writeln!(output, "\n## Matches in {}", path.display())?;                                file_header_written = true;                            }                             let start_line = range.start.row + 1;                            let end_line = range.end.row + 1;                            writeln!(output, "\n### Lines {start_line}-{end_line}\n```")?;                            output.extend(buffer.text_for_range(range));                            output.push_str("\n```\n");                             matches_found += 1;                        }                    }                     Ok(())                })??;            }             if matches_found == 0 {                Ok("No matches found".to_string())            } else if has_more_matches {                Ok(format!(                    "Showing matches {}-{} (there were more matches found; use offset: {} to see next page):\n{output}",                    input.offset + 1,                    input.offset + matches_found,                    input.offset + RESULTS_PER_PAGE,                ))            } else {                Ok(format!("Found {matches_found} matches:\n{output}"))            }        }).into()    }} #[cfg(test)]mod tests {    use super::*;    use assistant_tool::Tool;    use gpui::{AppContext, TestAppContext};    use project::{FakeFs, Project};    use settings::SettingsStore;    use util::path;     #[gpui::test]    async fn test_grep_tool_with_include_pattern(cx: &mut TestAppContext) {        init_test(cx);         let fs = FakeFs::new(cx.executor().clone());        fs.insert_tree(            "/root",            serde_json::json!({                "src": {                    "main.rs": "fn main() {\n    println!(\"Hello, world!\");\n}",                    "utils": {                        "helper.rs": "fn helper() {\n    println!(\"I'm a helper!\");\n}",                    },                },                "tests": {                    "test_main.rs": "fn test_main() {\n    assert!(true);\n}",                }            }),        )        .await;         let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;         // Test with include pattern for Rust files inside the root of the project        let input = serde_json::to_value(GrepToolInput {            regex: "println".to_string(),            include_pattern: Some("root/**/*.rs".to_string()),            offset: 0,            case_sensitive: false,        })        .unwrap();         let result = run_grep_tool(input, project.clone(), cx).await;        assert!(result.contains("main.rs"), "Should find matches in main.rs");        assert!(            result.contains("helper.rs"),            "Should find matches in helper.rs"        );        assert!(            !result.contains("test_main.rs"),            "Should not include test_main.rs even though it's a .rs file (because it doesn't have the pattern)"        );         // Test with include pattern for src directory only        let input = serde_json::to_value(GrepToolInput {            regex: "fn".to_string(),            include_pattern: Some("root/**/src/**".to_string()),            offset: 0,            case_sensitive: false,        })        .unwrap();         let result = run_grep_tool(input, project.clone(), cx).await;        assert!(            result.contains("main.rs"),            "Should find matches in src/main.rs"        );        assert!(            result.contains("helper.rs"),            "Should find matches in src/utils/helper.rs"        );        assert!(            !result.contains("test_main.rs"),            "Should not include test_main.rs as it's not in src directory"        );         // Test with empty include pattern (should default to all files)        let input = serde_json::to_value(GrepToolInput {            regex: "fn".to_string(),            include_pattern: None,            offset: 0,            case_sensitive: false,        })        .unwrap();         let result = run_grep_tool(input, project.clone(), cx).await;        assert!(result.contains("main.rs"), "Should find matches in main.rs");        assert!(            result.contains("helper.rs"),            "Should find matches in helper.rs"        );        assert!(            result.contains("test_main.rs"),            "Should include test_main.rs"        );    }     #[gpui::test]    async fn test_grep_tool_with_case_sensitivity(cx: &mut TestAppContext) {        init_test(cx);         let fs = FakeFs::new(cx.executor().clone());        fs.insert_tree(            "/root",            serde_json::json!({                "case_test.txt": "This file has UPPERCASE and lowercase text.\nUPPERCASE patterns should match only with case_sensitive: true",            }),        )        .await;         let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;         // Test case-insensitive search (default)        let input = serde_json::to_value(GrepToolInput {            regex: "uppercase".to_string(),            include_pattern: Some("**/*.txt".to_string()),            offset: 0,            case_sensitive: false,        })        .unwrap();         let result = run_grep_tool(input, project.clone(), cx).await;        assert!(            result.contains("UPPERCASE"),            "Case-insensitive search should match uppercase"        );         // Test case-sensitive search        let input = serde_json::to_value(GrepToolInput {            regex: "uppercase".to_string(),            include_pattern: Some("**/*.txt".to_string()),            offset: 0,            case_sensitive: true,        })        .unwrap();         let result = run_grep_tool(input, project.clone(), cx).await;        assert!(            !result.contains("UPPERCASE"),            "Case-sensitive search should not match uppercase"        );         // Test case-sensitive search        let input = serde_json::to_value(GrepToolInput {            regex: "LOWERCASE".to_string(),            include_pattern: Some("**/*.txt".to_string()),            offset: 0,            case_sensitive: true,        })        .unwrap();         let result = run_grep_tool(input, project.clone(), cx).await;         assert!(            !result.contains("lowercase"),            "Case-sensitive search should match lowercase"        );         // Test case-sensitive search for lowercase pattern        let input = serde_json::to_value(GrepToolInput {            regex: "lowercase".to_string(),            include_pattern: Some("**/*.txt".to_string()),            offset: 0,            case_sensitive: true,        })        .unwrap();         let result = run_grep_tool(input, project.clone(), cx).await;        assert!(            result.contains("lowercase"),            "Case-sensitive search should match lowercase text"        );    }     async fn run_grep_tool(        input: serde_json::Value,        project: Entity<Project>,        cx: &mut TestAppContext,    ) -> String {        let tool = Arc::new(GrepTool);        let action_log = cx.new(|_cx| ActionLog::new(project.clone()));        let task = cx.update(|cx| tool.run(input, &[], project, action_log, cx));         match task.output.await {            Ok(result) => result,            Err(e) => panic!("Failed to run grep tool: {}", e),        }    }     fn init_test(cx: &mut TestAppContext) {        cx.update(|cx| {            let settings_store = SettingsStore::test(cx);            cx.set_global(settings_store);            language::init(cx);            Project::init_settings(cx);        });    }}