#![deny(clippy::all)]
#![deny(clippy::pedantic)]
use anyhow::{Context, Result};
use argh::FromArgs;
use rayon::prelude::*;
use serde::Serialize;
use std::path::{Path, PathBuf};
use std::sync::OnceLock;
use std::{env, process};
use crate::cli::Cli;
use crate::flags::GitFlags;
use crate::lang::BinaryMode;
use crate::output::SearchOutput;
use crate::paths::command_paths;
use crate::source::SourceFile;
use crate::target::Target;
fn load_source(input: &cli::InputArgs, binary_mode: BinaryMode) -> Result<(Target, SourceFile)> {
let target = input.to_target()?;
let source = output::load_source_for_input(
&target.path,
input.stdin.as_ref(),
input.language,
binary_mode,
)?;
Ok((target, source))
}
mod cli;
mod flags;
mod hash;
mod ignore;
mod lang;
mod navigation;
mod output;
mod paths;
mod repo;
mod search;
mod source;
mod symbols;
mod target;
static OUTPUT_FILE: OnceLock<PathBuf> = OnceLock::new();
fn main() {
env_logger::init();
if env::args_os().len() == 1 {
match Cli::from_args(&["readseek"], &["--help"]) {
Err(early_exit) => eprintln!("{}", early_exit.output),
Ok(_) => eprintln!("readseek: help output unavailable"),
}
process::exit(2);
}
if let Err(error) = run() {
eprintln!("error: {error:#}");
process::exit(1);
}
}
#[allow(clippy::too_many_lines)]
fn run() -> Result<()> {
let cli: crate::cli::Cli = argh::from_env();
if cli.version {
println!("readseek {}", env!("CARGO_PKG_VERSION"));
return Ok(());
}
if let Some(path) = cli.output {
OUTPUT_FILE.set(path).ok();
}
let command = cli.command.context("command required")?;
match command {
crate::cli::Command::Detect(command) => {
let input = cli::InputArgs {
target: command.target.clone(),
stdin: command.stdin.clone(),
language: command.language,
};
let (_, source) = load_source(&input, BinaryMode::Reject)?;
print_json(&source.detection)?;
}
crate::cli::Command::Read(command) => {
let input = cli::InputArgs {
target: command.target.clone(),
stdin: command.stdin.clone(),
language: command.language,
};
let (target, source) = load_source(&input, BinaryMode::Lossy)?;
let target_line = output::resolve_target_line(&source, &target)?;
let start = match (command.offset, target_line) {
(Some(start), Some(line)) if start != line => {
anyhow::bail!("target line conflicts with --offset")
}
(Some(start), _) | (_, Some(start)) => Some(start),
(None, None) => None,
};
if command.end.is_some() && command.limit.is_some() {
anyhow::bail!("cannot combine --end with --limit");
}
let end = if let Some(limit) = command.limit {
if limit == 0 {
anyhow::bail!("limit must be greater than zero");
}
let start_line = start.unwrap_or(1);
Some(
start_line
.checked_add(limit - 1)
.context("read range exceeds supported line numbers")?,
)
} else {
command.end
};
let output = output::read_output(&source, start, end)?;
print_json(&output)?;
}
crate::cli::Command::Map(command) => {
let input = cli::InputArgs {
target: command.target.clone(),
stdin: command.stdin.clone(),
language: command.language,
};
let (_, source) = load_source(&input, BinaryMode::Reject)?;
print_json(&output::map_output(&source)?)?;
}
crate::cli::Command::Symbol(command) => {
let input = cli::InputArgs {
target: command.target.clone(),
stdin: command.stdin.clone(),
language: command.language,
};
let target = input.to_target()?;
let source = output::load_source_for_input(
&target.path,
input.stdin.as_ref(),
input.language,
BinaryMode::Reject,
)?;
let target_line = output::resolve_explicit_target_line(&source, &target, command.line)?;
let address = command.name.as_deref();
let output = output::symbol_command_output(&source, address, target_line)?;
print_json(&output)?;
}
crate::cli::Command::Identify(command) => {
let input = cli::InputArgs {
target: command.target.clone(),
stdin: command.stdin.clone(),
language: command.language,
};
let (target, source) = load_source(&input, BinaryMode::Reject)?;
let target_line = output::resolve_explicit_target_line(&source, &target, command.line)?;
let output = output::identify_output(&source, target_line, command.column)?;
print_json(&output)?;
}
crate::cli::Command::Def(command) => {
let output = navigation::def_output(&command)?;
match command.format {
crate::output::Format::Plain => print_json(&navigation::compact_defs(&output))?,
crate::output::Format::Json => print_json(&output)?,
}
}
crate::cli::Command::Refs(command) => {
let output = navigation::refs_output(&command)?;
match command.format {
crate::output::Format::Plain => print_json(&navigation::compact_refs(&output))?,
crate::output::Format::Json => print_json(&output)?,
}
}
crate::cli::Command::Search(command) => {
let paths = command_paths(
&command.target,
GitFlags {
cached: command.cached,
others: command.others,
ignored: command.ignored,
},
)?;
let mut pattern = crate::search::compile_search(&command.pattern);
if let Some(language) = command
.language
.and_then(crate::symbols::tree_sitter_language)
{
crate::search::prepare_pattern_tree(&mut pattern, &language);
}
let results: Vec<_> = paths
.par_iter()
.filter_map(|path| {
let mut parser = tree_sitter::Parser::new();
crate::search::search_file(path, command.language, &pattern, &mut parser)
.ok()
.flatten()
.filter(|result| !result.matches.is_empty())
})
.collect();
print_json(&SearchOutput { results })?;
}
crate::cli::Command::Init(command) => {
let path = command.path.as_deref().unwrap_or(Path::new("."));
repo::init(path)?;
repo::update(
path,
GitFlags {
cached: true,
others: true,
ignored: false,
},
)?;
}
}
Ok(())
}
fn print_json(value: &impl Serialize) -> Result<()> {
let json = serde_json::to_string_pretty(value)?;
if let Some(path) = OUTPUT_FILE.get() {
std::fs::write(path, json).with_context(|| format!("write {}", path.display()))?;
} else {
println!("{json}");
}
Ok(())
}