rust/src/librustpkg/search.rs
Tim Chevalier c120464be0 rustc/rusti/rustpkg: Infer packages from extern mod directives
This commit won't be quite as useful until I implement RUST_PATH and
until we change `extern mod` to take a general string instead of
an identifier (#5682 and #6407).

With that said, now if you're using rustpkg and a program contains:

extern mod foo;

rustpkg will attempt to search for `foo`, so that you don't have to
provide a -L directory explicitly. In addition, rustpkg will
actually try to build and install `foo`, unless it's already
installed (specifically, I tested that `extern mod extra;` would
not cause it to try to find source for `extra` and compile it
again).

This is as per #5681.

Incidentally, I changed some driver code to infer the link name
from the crate link_meta attributes. If that change isn't ok, say
something. Also, I changed the addl_lib_search_paths field in the
session options to be an @mut ~[Path] so that it can be modified
after expansion but before later phases.
2013-06-01 18:48:07 -07:00

25 lines
1.1 KiB
Rust

// 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.
use path_util::installed_library_in_workspace;
use core::prelude::*;
/// If a library with path `p` matching pkg_id's name exists under sroot_opt,
/// return Some(p). Return None if there's no such path or if sroot_opt is None.
pub fn find_library_in_search_path(sroot_opt: Option<@Path>, short_name: &str) -> Option<Path> {
match sroot_opt {
Some(sroot) => {
debug!("Will search for a library with short name %s in \
%s", short_name, (sroot.push("lib")).to_str());
installed_library_in_workspace(short_name, sroot)
}
None => None
}
}