2 use std::path::{Path, PathBuf};
4 use rustc_codegen_ssa::back::archive::ArchiveBuilder;
5 use rustc_session::Session;
7 use rustc_data_structures::temp_dir::MaybeTempDir;
8 use rustc_session::cstore::DllImport;
10 struct ArchiveConfig<'a> {
14 use_gnu_style_archive: bool,
26 pub struct ArArchiveBuilder<'a> {
27 config: ArchiveConfig<'a>,
28 src_archives: Vec<(PathBuf, ar::Archive<File>)>,
29 // Don't use `HashMap` here, as the order is important. `rust.metadata.bin` must always be at
30 // the end of an archive for linkers to not get confused.
31 entries: Vec<(String, ArchiveEntry)>,
34 impl<'a> ArchiveBuilder<'a> for ArArchiveBuilder<'a> {
35 fn new(sess: &'a Session, output: &Path) -> Self {
36 let config = ArchiveConfig {
38 dst: output.to_path_buf(),
40 // FIXME test for linux and System V derivatives instead
41 use_gnu_style_archive: sess.target.options.archive_format == "gnu",
51 fn add_file(&mut self, file: &Path) {
53 file.file_name().unwrap().to_str().unwrap().to_string(),
54 ArchiveEntry::File(file.to_owned()),
58 fn add_archive<F>(&mut self, archive_path: &Path, mut skip: F) -> std::io::Result<()>
60 F: FnMut(&str) -> bool + 'static,
62 let mut archive = ar::Archive::new(std::fs::File::open(&archive_path)?);
63 let archive_index = self.src_archives.len();
66 while let Some(entry) = archive.next_entry() {
68 let file_name = String::from_utf8(entry.header().identifier().to_vec())
69 .map_err(|err| std::io::Error::new(std::io::ErrorKind::InvalidData, err))?;
70 if !skip(&file_name) {
72 .push((file_name, ArchiveEntry::FromArchive { archive_index, entry_index: i }));
77 self.src_archives.push((archive_path.to_owned(), archive));
81 fn build(mut self) -> bool {
82 use std::process::Command;
84 fn add_file_using_ar(archive: &Path, file: &Path) {
86 .arg("r") // add or replace file
87 .arg("-c") // silence created file message
94 enum BuilderKind<'a> {
95 Bsd(ar::Builder<File>),
96 Gnu(ar::GnuBuilder<File>),
100 let mut builder = if self.config.use_native_ar {
101 BuilderKind::NativeAr(&self.config.dst)
102 } else if self.config.use_gnu_style_archive {
103 BuilderKind::Gnu(ar::GnuBuilder::new(
104 File::create(&self.config.dst).unwrap(),
107 .map(|(name, _)| name.as_bytes().to_vec())
111 BuilderKind::Bsd(ar::Builder::new(File::create(&self.config.dst).unwrap()))
114 let any_members = !self.entries.is_empty();
117 for (entry_name, entry) in self.entries.into_iter() {
119 ArchiveEntry::FromArchive {
123 let (ref src_archive_path, ref mut src_archive) =
124 self.src_archives[archive_index];
125 let entry = src_archive.jump_to_entry(entry_index).unwrap();
126 let header = entry.header().clone();
129 BuilderKind::Bsd(ref mut builder) => {
130 builder.append(&header, entry).unwrap()
132 BuilderKind::Gnu(ref mut builder) => {
133 builder.append(&header, entry).unwrap()
135 BuilderKind::NativeAr(archive_file) => {
138 .arg(src_archive_path)
142 add_file_using_ar(archive_file, Path::new(&entry_name));
143 std::fs::remove_file(entry_name).unwrap();
147 ArchiveEntry::File(file) =>
149 BuilderKind::Bsd(ref mut builder) => {
151 .append_file(entry_name.as_bytes(), &mut File::open(file).expect("file for bsd builder"))
154 BuilderKind::Gnu(ref mut builder) => {
156 .append_file(entry_name.as_bytes(), &mut File::open(&file).expect(&format!("file {:?} for gnu builder", file)))
159 BuilderKind::NativeAr(archive_file) => add_file_using_ar(archive_file, &file),
165 std::mem::drop(builder);
167 // Run ranlib to be able to link the archive
168 let status = std::process::Command::new("ranlib")
169 .arg(self.config.dst)
171 .expect("Couldn't run ranlib");
173 if !status.success() {
174 self.config.sess.fatal(&format!("Ranlib exited with code {:?}", status.code()));
180 fn inject_dll_import_lib(&mut self, _lib_name: &str, _dll_imports: &[DllImport], _tmpdir: &MaybeTempDir) {