/
installed_packages.rs
94 lines (89 loc) · 3.1 KB
/
installed_packages.rs
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// Copyright 2013 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.
// Listing installed packages
use rustc::metadata::filesearch::rust_path;
use std::os;
use std::io;
use std::io::fs;
use syntax::crateid::CrateId;
pub fn list_installed_packages(f: |&CrateId| -> bool) -> bool {
let workspaces = rust_path();
for p in workspaces.iter() {
let binfiles = {
let _guard = io::ignore_io_error();
fs::readdir(&p.join("bin"))
};
for exec in binfiles.iter() {
// FIXME (#9639): This needs to handle non-utf8 paths
match exec.filestem_str() {
None => (),
Some(exec_path) => {
let crate_id = from_str(exec_path).expect("valid crate id");
if !f(&crate_id) {
return false;
}
}
}
}
let libfiles = {
let _guard = io::ignore_io_error();
fs::readdir(&p.join("lib"))
};
for lib in libfiles.iter() {
debug!("Full name: {}", lib.display());
match has_library(lib) {
Some(basename) => {
let parent = p.join("lib");
debug!("parent = {}, child = {}",
parent.display(), lib.display());
let rel_p = lib.path_relative_from(&parent).unwrap();
debug!("Rel: {}", rel_p.display());
let rel_path = rel_p.join(basename);
rel_path.display().with_str(|s| {
debug!("Rel name: {}", s);
let crate_id = from_str(s).expect("valid crate id");
f(&crate_id);
});
}
None => ()
}
};
}
true
}
pub fn has_library(p: &Path) -> Option<~str> {
let files = {
let _guard = io::ignore_io_error();
fs::readdir(p)
};
for path in files.iter() {
if path.extension_str() == Some(os::consts::DLL_EXTENSION) {
let stuff : &str = path.filestem_str().expect("has_library: weird path");
let mut stuff2 = stuff.split_str("-");
let stuff3: ~[&str] = stuff2.collect();
// argh
let chars_to_drop = os::consts::DLL_PREFIX.len();
return Some(stuff3[0].slice(chars_to_drop, stuff3[0].len()).to_owned());
}
}
None
}
pub fn package_is_installed(p: &CrateId) -> bool {
let mut is_installed = false;
list_installed_packages(|installed| {
if installed == p {
is_installed = true;
false
} else {
true
}
});
is_installed
}