use crate::user_version::UserVersion;
use encoding_rs_io::DecodeReaderBytes;
use log::info;
use std::io::Read;
use std::path::Path;
use std::str::FromStr;
const PATH_PARTS: [&str; 2] = [".nvmrc", ".node-version"];
pub fn get_user_version_from_file(path: impl AsRef<Path>) -> Option<UserVersion> {
let path = path.as_ref();
for path_part in PATH_PARTS.iter() {
let new_path = path.join(path_part);
info!(
"Looking for version file in {}. exists? {}",
new_path.display(),
new_path.exists()
);
if let Ok(file) = std::fs::File::open(new_path) {
let version = {
let mut reader = DecodeReaderBytes::new(file);
let mut version = String::new();
reader.read_to_string(&mut version).map(|_| version)
};
match version {
Err(err) => info!("Can't read file: {}", err),
Ok(version) => {
info!("Found string {:?} in version file", version);
if let Ok(ver) = UserVersion::from_str(version.trim()) {
return Some(ver);
}
}
}
}
}
None
}