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use persist::fs::*;
use rustc::dep_graph::{WorkProduct, WorkProductId};
use rustc::session::Session;
use rustc::session::config::OutputType;
use rustc::util::fs::link_or_copy;
use std::path::PathBuf;
use std::sync::Arc;
use std::fs as std_fs;
pub fn save_trans_partition(sess: &Session,
cgu_name: &str,
partition_hash: u64,
files: &[(OutputType, PathBuf)]) {
debug!("save_trans_partition({:?},{},{:?})",
cgu_name,
partition_hash,
files);
if sess.opts.incremental.is_none() {
return;
}
let work_product_id = Arc::new(WorkProductId(cgu_name.to_string()));
let saved_files: Option<Vec<_>> =
files.iter()
.map(|&(kind, ref path)| {
let file_name = format!("cgu-{}.{}", cgu_name, kind.extension());
let path_in_incr_dir = in_incr_comp_dir_sess(sess, &file_name);
match link_or_copy(path, &path_in_incr_dir) {
Ok(_) => Some((kind, file_name)),
Err(err) => {
sess.warn(&format!("error copying object file `{}` \
to incremental directory as `{}`: {}",
path.display(),
path_in_incr_dir.display(),
err));
None
}
}
})
.collect();
let saved_files = match saved_files {
Some(v) => v,
None => return,
};
let work_product = WorkProduct {
input_hash: partition_hash,
saved_files: saved_files,
};
sess.dep_graph.insert_work_product(&work_product_id, work_product);
}
pub fn delete_workproduct_files(sess: &Session, work_product: &WorkProduct) {
for &(_, ref file_name) in &work_product.saved_files {
let path = in_incr_comp_dir_sess(sess, file_name);
match std_fs::remove_file(&path) {
Ok(()) => { }
Err(err) => {
sess.warn(
&format!("file-system error deleting outdated file `{}`: {}",
path.display(), err));
}
}
}
}