use anyhow::{Context, Result, bail};
use rayon::prelude::*;
use serde::Serialize;
use std::path::Path;
use tree_sitter::Parser;
use crate::cli;
use crate::cli::GitSelection;
use crate::engine::flags::GitFlags;
use crate::engine::lang::{BinaryMode, Language};
use crate::engine::output::SearchOutput;
use crate::engine::paths::command_paths;
use crate::engine::source::SourceFile;
use crate::engine::target::Target;
use crate::engine::{def, output, refs, rename, repo};
pub(crate) 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(dir) = cli.readseek_dir {
crate::engine::repo::set_dir_override(dir);
}
let output_path = cli.output;
let command = cli.command.context("command required")?;
let json = match command {
crate::cli::Command::Detect(command) => run_detect(&command)?,
crate::cli::Command::Read(command) => run_read(&command)?,
crate::cli::Command::Map(command) => run_map(&command)?,
crate::cli::Command::Check(command) => run_check(&command)?,
crate::cli::Command::Symbol(command) => run_symbol(&command)?,
crate::cli::Command::Identify(command) => run_identify(&command)?,
crate::cli::Command::Def(command) => {
let flags = command.git_flags();
let name = match (command.name, command.from_identify) {
(Some(name), _) => def::NameSource::Literal(name),
(None, true) => def::NameSource::FromIdentify,
(None, false) => {
anyhow::bail!("definition requires a name or --from-identify context")
}
};
let request = def::Request {
target: command.target,
name,
language: command.language,
flags,
};
let output = def::output(&request)?;
match command.format {
crate::engine::output::Format::Plain => to_json(&def::compact(&output))?,
crate::engine::output::Format::Json => to_json(&output)?,
}
}
crate::cli::Command::Refs(command) => {
let flags = command.git_flags();
let request = refs::Request {
target: command.target,
name: command.name,
scope: command.scope,
line: command.line,
column: command.column,
language: command.language,
flags,
};
let output = refs::output(&request)?;
match command.format {
crate::engine::output::Format::Plain => to_json(&refs::compact(&output))?,
crate::engine::output::Format::Json => to_json(&output)?,
}
}
crate::cli::Command::Rename(command) => {
let flags = command.git_flags();
let request = rename::Request {
target: command.target,
line: command.line,
column: command.column,
to: command.to,
workspace: command.workspace,
apply: command.apply,
language: command.language,
flags,
};
to_json(&rename::output(&request)?)?
}
crate::cli::Command::Search(command) => run_search(&command)?,
crate::cli::Command::Init(command) => {
run_init(&command)?;
return Ok(());
}
};
write_output(&json, output_path.as_deref())
}
fn load_source(
target_str: Option<&str>,
stdin: Option<&Path>,
language: Option<Language>,
binary_mode: BinaryMode,
) -> Result<(Target, SourceFile)> {
let target = if let Some(path) = stdin {
if target_str.is_some() {
bail!("target cannot be combined with --stdin");
}
Target {
path: path.to_path_buf(),
address: None,
}
} else {
crate::cli::parse_target(target_str.context("target required")?)?
};
let source = output::load_source_for_input(&target.path, stdin, language, binary_mode)?;
Ok((target, source))
}
fn run_detect(command: &cli::DetectCommand) -> Result<String> {
let (_, source) = load_source(
command.target.as_deref(),
command.stdin.as_deref(),
command.language,
BinaryMode::Reject,
)?;
to_json(&source.detection)
}
fn run_read(command: &cli::ReadCommand) -> Result<String> {
let (target, source) = load_source(
command.target.as_deref(),
command.stdin.as_deref(),
command.language,
BinaryMode::Lossy,
)?;
let target_line = output::resolve_target(&source, &target)?;
let start = match (command.start, target_line) {
(Some(start), Some(line)) if start != line => {
anyhow::bail!("target line conflicts with --start")
}
(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)?;
to_json(&output)
}
fn run_map(command: &cli::MapCommand) -> Result<String> {
let (_, source) = load_source(
command.target.as_deref(),
command.stdin.as_deref(),
command.language,
BinaryMode::Reject,
)?;
to_json(&output::map_output(&source)?)
}
fn run_check(command: &cli::CheckCommand) -> Result<String> {
let (_, source) = load_source(
command.target.as_deref(),
command.stdin.as_deref(),
command.language,
BinaryMode::Reject,
)?;
to_json(&output::check_output(&source)?)
}
fn run_symbol(command: &cli::SymbolCommand) -> Result<String> {
let (target, source) = load_source(
command.target.as_deref(),
command.stdin.as_deref(),
command.language,
BinaryMode::Reject,
)?;
let target_line = output::resolve_explicit_target(&source, &target, command.line)?;
let address = match (command.name.as_deref(), target_line) {
(Some(name), _) => output::SymbolAddress::Name(name),
(None, Some(line)) => output::SymbolAddress::Line(line),
(None, None) => anyhow::bail!("symbol requires qualified name or target line/hash"),
};
let output = output::symbol_output(&source, address)?;
to_json(&output)
}
fn run_identify(command: &cli::IdentifyCommand) -> Result<String> {
let (target, source) = load_source(
command.target.as_deref(),
command.stdin.as_deref(),
command.language,
BinaryMode::Reject,
)?;
let target_line = output::resolve_explicit_target(&source, &target, command.line)?;
let output = output::identify_output(&source, target_line, command.column)?;
to_json(&output)
}
fn run_search(command: &cli::SearchCommand) -> Result<String> {
let paths = command_paths(&command.target, command.git_flags())?;
let mut pattern = crate::engine::search::compile_search(&command.pattern);
if let Some(language) = command
.language
.and_then(crate::engine::symbols::tree_sitter_language)
{
crate::engine::search::prepare_tree(&mut pattern, &language);
}
let results: Vec<_> = paths
.par_iter()
.map_init(Parser::new, |parser, path| {
crate::engine::search::search_file(path, command.language, &pattern, parser)
.map(|result| result.filter(|result| !result.matches.is_empty()))
})
.collect::<Result<Vec<_>>>()?
.into_iter()
.flatten()
.collect();
to_json(&SearchOutput { results })
}
fn run_init(command: &cli::InitCommand) -> Result<()> {
let path = command.path.as_deref().unwrap_or(Path::new("."));
let init = repo::init(path)?;
repo::update(
path,
GitFlags {
cached: true,
others: true,
ignored: false,
},
)?;
if init.reinitialized {
println!(
"Reinitialized existing readseek repository in {}/",
init.path.display()
);
} else {
println!(
"Initialized empty readseek repository in {}/",
init.path.display()
);
}
Ok(())
}
fn to_json(value: &impl Serialize) -> Result<String> {
Ok(serde_json::to_string_pretty(value)?)
}
fn write_output(json: &str, path: Option<&Path>) -> Result<()> {
if let Some(path) = path {
std::fs::write(path, json).with_context(|| format!("write {}", path.display()))
} else {
println!("{json}");
Ok(())
}
}