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42 lines
1.1 KiB
42 lines
1.1 KiB
use std::path::PathBuf;
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use clap::Parser;
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mod sandbox;
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mod stdlib;
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/// Runs a Lua script in a customized environment
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#[derive(Parser, Debug)]
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#[command(version, about)]
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struct Args {
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/// Path to the Lua script to execute
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filepath: PathBuf,
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}
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("warn")).init();
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let args = Args::parse();
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let source = tokio::fs::read_to_string(&args.filepath).await?;
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// Skip a leading shebang line like stock Lua's luaL_loadfilex does (it
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// skips any first line starting with '#'). The newline is kept so error
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// messages still report correct line numbers.
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let chunk = if source.starts_with('#') {
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&source[source.find('\n').unwrap_or(source.len())..]
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} else {
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source.as_str()
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};
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let lua = sandbox::create_sandboxed_lua()?;
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lua.load(chunk)
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// "@" marks the chunk name as a file path in error messages / tracebacks
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.set_name(format!("@{}", args.filepath.display()))
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.exec_async()
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.await?;
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Ok(())
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}
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