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use std::ffi::OsStr;
use std::num::ParseIntError;
use std::path::Path;
use std::process::Command;
use std::thread;
use std::time::{Duration, SystemTime};
/// # Panics
///
/// Panics if the python commands could not be spawned
pub fn run(port: u16, lint: Option<&String>) -> ! {
let mut url = Some(match lint {
None => format!("http://localhost:{}", port),
Some(lint) => format!("http://localhost:{}/#{}", port, lint),
});
loop {
if mtime("util/gh-pages/lints.json") < mtime("clippy_lints/src") {
Command::new("cargo")
.arg("collect-metadata")
.spawn()
.unwrap()
.wait()
.unwrap();
}
if let Some(url) = url.take() {
thread::spawn(move || {
Command::new("python3")
.arg("-m")
.arg("http.server")
.arg(port.to_string())
.current_dir("util/gh-pages")
.spawn()
.unwrap();
// Give some time for python to start
thread::sleep(Duration::from_millis(500));
// Launch browser after first export.py has completed and http.server is up
let _result = opener::open(url);
});
}
thread::sleep(Duration::from_millis(1000));
}
}
fn mtime(path: impl AsRef<Path>) -> SystemTime {
let path = path.as_ref();
if path.is_dir() {
path.read_dir()
.into_iter()
.flatten()
.flatten()
.map(|entry| mtime(&entry.path()))
.max()
.unwrap_or(SystemTime::UNIX_EPOCH)
} else {
path.metadata()
.and_then(|metadata| metadata.modified())
.unwrap_or(SystemTime::UNIX_EPOCH)
}
}
#[allow(clippy::missing_errors_doc)]
pub fn validate_port(arg: &OsStr) -> Result<(), ParseIntError> {
arg.to_string_lossy().parse::<u16>().map(|_| ())
}
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