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use clap::{Parser, Subcommand};
use std::path::PathBuf;
#[derive(Parser, Debug)]
#[command(
name = "rust-analyzer-cli",
author,
version,
about = "Compiler-accurate Rust codebase navigation powered by rust-analyzer LSP"
)]
pub struct Cli {
/// Port for the background daemon HTTP server
#[arg(short, long, env = "RUST_ANALYZER_CLI_PORT", default_value_t = 60094)]
pub port: u16,
/// Output results in JSON format
#[arg(short, long, global = true)]
pub json: bool,
#[command(subcommand)]
pub command: Commands,
}
#[derive(Subcommand, Debug)]
pub enum Commands {
/// Start the background LSP daemon and HTTP server
Daemon {
/// Workspace root directory
#[arg(short, long, default_value = ".")]
workspace: PathBuf,
},
/// Query daemon and rust-analyzer status
Status,
/// Refresh / restart the rust-analyzer session
Refresh,
/// Search workspace symbols
Symbol {
/// Symbol name to search for
name: String,
/// Optional symbol filter: any, struct, enum, fn, trait, type, const, var
#[arg(default_value = "any")]
kind: String,
/// Match exact symbol name
#[arg(long)]
exact: bool,
},
/// Extract file document symbols outline
Outline {
/// Target file path
#[arg(short, long)]
file: Option<PathBuf>,
/// Comma-separated list of target file paths
#[arg(long)]
file_list: Option<String>,
/// Write outline output to a file
#[arg(short, long)]
output: Option<PathBuf>,
},
/// Go to definition at file line and column
Definition {
/// File path
#[arg(short, long)]
file: PathBuf,
/// Line number (1-based)
#[arg(short, long)]
line: u32,
/// Column number (1-based)
#[arg(short, long)]
col: u32,
},
/// Find references or call hierarchy at file line and column
Cursor {
/// File path
#[arg(short, long)]
file: PathBuf,
/// Line number (1-based)
#[arg(short, long)]
line: u32,
/// Column number (1-based)
#[arg(short, long)]
col: u32,
/// Mode: incoming, outgoing, or references
#[arg(short, long, default_value = "incoming")]
mode: String,
/// Traversal depth (default: 1)
#[arg(short, long, default_value_t = 1)]
depth: u32,
},
/// Query type hierarchy (supertypes / subtypes)
TypeHierarchy {
/// File path
#[arg(short, long)]
file: PathBuf,
/// Line number (1-based)
#[arg(short, long)]
line: u32,
/// Column number (1-based)
#[arg(short, long)]
col: u32,
/// Mode: supertypes or subtypes
#[arg(short, long, default_value = "supertypes")]
mode: String,
/// Traversal depth (default: 1)
#[arg(short, long, default_value_t = 1)]
depth: u32,
},
/// Run cargo check compilation verification
Check {
/// Optional cargo build target
#[arg(short, long)]
target: Option<String>,
},
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_cli_symbol_parsing() {
let args = vec!["rust-analyzer-cli", "symbol", "LspClient", "struct", "--exact"];
let cli = Cli::try_parse_from(args).unwrap();
assert_eq!(cli.port, 60094);
assert!(!cli.json);
match cli.command {
Commands::Symbol { name, kind, exact } => {
assert_eq!(name, "LspClient");
assert_eq!(kind, "struct");
assert!(exact);
}
_ => panic!("Expected Symbol command"),
}
}
#[test]
fn test_cli_outline_parsing() {
let args = vec!["rust-analyzer-cli", "--json", "outline", "-f", "src/main.rs"];
let cli = Cli::try_parse_from(args).unwrap();
assert!(cli.json);
match cli.command {
Commands::Outline { file, file_list, output } => {
assert_eq!(file, Some(PathBuf::from("src/main.rs")));
assert!(file_list.is_none());
assert!(output.is_none());
}
_ => panic!("Expected Outline command"),
}
}
#[test]
fn test_cli_definition_parsing() {
let args = vec!["rust-analyzer-cli", "definition", "-f", "src/lib.rs", "-l", "10", "-c", "5"];
let cli = Cli::try_parse_from(args).unwrap();
match cli.command {
Commands::Definition { file, line, col } => {
assert_eq!(file, PathBuf::from("src/lib.rs"));
assert_eq!(line, 10);
assert_eq!(col, 5);
}
_ => panic!("Expected Definition command"),
}
}
}