1 files changed, 97 insertions, 0 deletions
diff --git a/src/bootstrap/build/util.rs b/src/bootstrap/build/util.rs
new file mode 100644
index 00000000000..6c700671f11
--- /dev/null
+++ b/src/bootstrap/build/util.rs
@@ -0,0 +1,97 @@
+// Copyright 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.
+
+use std::env;
+use std::path::{Path, PathBuf};
+use std::fs;
+use std::process::Command;
+
+use bootstrap::{dylib_path, dylib_path_var};
+use filetime::FileTime;
+
+pub fn staticlib(name: &str, target: &str) -> String {
+    if target.contains("windows-msvc") {
+        format!("{}.lib", name)
+    } else {
+        format!("lib{}.a", name)
+    }
+}
+
+pub fn mtime(path: &Path) -> FileTime {
+    fs::metadata(path).map(|f| {
+        FileTime::from_last_modification_time(&f)
+    }).unwrap_or(FileTime::zero())
+}
+
+#[allow(dead_code)] // this will be used soon
+pub fn cp_r(src: &Path, dst: &Path) {
+    for f in t!(fs::read_dir(src)) {
+        let f = t!(f);
+        let path = f.path();
+        let name = path.file_name().unwrap();
+        let dst = dst.join(name);
+        if t!(f.file_type()).is_dir() {
+            let _ = fs::remove_dir_all(&dst);
+            t!(fs::create_dir(&dst));
+            cp_r(&path, &dst);
+        } else {
+            let _ = fs::remove_file(&dst);
+            t!(fs::hard_link(&path, dst));
+        }
+    }
+}
+
+/// Given an executable called `name`, return the filename for the
+/// executable for a particular target.
+pub fn exe(name: &str, target: &str) -> String {
+    if target.contains("windows") {
+        format!("{}.exe", name)
+    } else {
+        name.to_string()
+    }
+}
+
+pub fn is_dylib(name: &str) -> bool {
+    name.ends_with(".dylib") || name.ends_with(".so") || name.ends_with(".dll")
+}
+
+pub fn libdir(target: &str) -> &'static str {
+    if target.contains("windows") {"bin"} else {"lib"}
+}
+
+pub fn add_lib_path(path: Vec<PathBuf>, cmd: &mut Command) {
+    let mut list = dylib_path();
+    for path in path {
+        list.insert(0, path);
+    }
+    cmd.env(dylib_path_var(), t!(env::join_paths(list)));
+}
+
+#[allow(dead_code)] // this will be used soon
+pub fn up_to_date(src: &Path, dst: &Path) -> bool {
+    let threshold = mtime(dst);
+    let meta = t!(fs::metadata(src));
+    if meta.is_dir() {
+        dir_up_to_date(src, &threshold)
+    } else {
+        FileTime::from_last_modification_time(&meta) <= threshold
+    }
+}
+
+fn dir_up_to_date(src: &Path, threshold: &FileTime) -> bool {
+    t!(fs::read_dir(src)).map(|e| t!(e)).all(|e| {
+        let meta = t!(e.metadata());
+        if meta.is_dir() {
+            dir_up_to_date(&e.path(), threshold)
+        } else {
+            FileTime::from_last_modification_time(&meta) < *threshold
+        }
+    })
+}