use std::path::Path;
use thiserror::Error;
use tokio::process::Command;
#[derive(Error, Debug)]
pub enum CommandError {
#[error("IO error: {0}")]
Io(#[from] std::io::Error),
#[error(
"Cargo command failed with status {status}. Args: {args:?}\nStdout: {stdout}\nStderr: {stderr}"
)]
Cargo {
status: std::process::ExitStatus,
args: Vec<String>,
stdout: String,
stderr: String,
},
}
pub async fn run_command(
root: &Path,
tool_args: &[&str],
capture: bool,
) -> Result<String, CommandError> {
let mut cmd = Command::new("cargo");
cmd.args(tool_args).current_dir(&root);
if capture {
let output = cmd.output().await?;
if !output.status.success() {
return Err(CommandError::Cargo {
status: output.status,
args: tool_args.iter().map(|s| s.to_string()).collect(),
stdout: String::from_utf8_lossy(&output.stdout).to_string(),
stderr: String::from_utf8_lossy(&output.stderr).to_string(),
});
}
Ok(String::from_utf8_lossy(&output.stdout).to_string())
} else {
let status = cmd.status().await?;
if !status.success() {
return Err(CommandError::Cargo {
status,
args: tool_args.iter().map(|s| s.to_string()).collect(),
stdout: String::from("Not captured"),
stderr: String::from("Not captured"),
});
}
Ok(String::new())
}
}
pub fn format_syn_error(source: &str, err: syn::Error) -> String {
let span = err.span();
let start = span.start();
let msg = err.to_string();
let lines: Vec<&str> = source.lines().collect();
let line_num = start.line;
let col = start.column;
let mut output = String::new();
output.push_str(&format!("error: {}\n", msg));
output.push_str(&format!(" --> src/lib.rs:{}:{}\n", line_num, col + 1));
output.push_str(" |\n");
let start_line = line_num.saturating_sub(2);
let end_line = (line_num + 1).min(lines.len());
for i in start_line..end_line {
let line_content = lines.get(i).unwrap_or(&"");
let display_num = i + 1;
if display_num == line_num {
output.push_str(&format!("{:3} | {}\n", display_num, line_content));
output.push_str(&format!(" | {}^\n", " ".repeat(col)));
} else {
output.push_str(&format!("{:3} | {}\n", display_num, line_content));
}
}
output.push_str(" |\n");
output
}