| // Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| //! This module contains files for saving intermediate work-products. |
| |
| use persist::util::*; |
| 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; |
| |
| 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, &file_name).unwrap(); |
| 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); |
| } |