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Alex Crichton afa5f574ff Re-work loading crates with nicer errors 
This commit rewrites crate loading internally in attempt to look at less
metadata and provide nicer errors. The loading is now split up into a few
stages:

1. Collect a mapping of (hash => ~[Path]) for a set of candidate libraries for a
   given search. The hash is the hash in the filename and the Path is the
   location of the library in question. All candidates are filtered based on
   their prefix/suffix (dylib/rlib appropriate) and then the hash/version are
   split up and are compared (if necessary).

   This means that if you're looking for an exact hash of library you don't have
   to open up the metadata of all libraries named the same, but also in your
   path.

2. Once this mapping is constructed, each (hash, ~[Path]) pair is filtered down
   to just a Path. This is necessary because the same rlib could show up twice
   in the path in multiple locations. Right now the filenames are based on just
   the crate id, so this could be indicative of multiple version of a crate
   during one crate_id lifetime in the path. If multiple duplicate crates are
   found, an error is generated.

3. Now that we have a mapping of (hash => Path), we error on multiple versions
   saying that multiple versions were found. Only if there's one (hash => Path)
   pair do we actually return that Path and its metadata.

With this restructuring, it restructures code so errors which were assertions
previously are now first-class errors. Additionally, this should read much less
metadata with lots of crates of the same name or same version in a path.

Closes #11908
2014-02-20 17:48:32 -08:00
man Consolidate codegen-related compiler flags 2014-02-10 00:50:39 -08:00
mk auto merge of #12398 : alexcrichton/rust/rlibs-and-dylibs-2, r=cmr 2014-02-20 04:31:49 -08:00
src Re-work loading crates with nicer errors 2014-02-20 17:48:32 -08:00
.gitattributes drop the linenoise library 2013-10-16 22:57:51 -04:00
.gitignore Ignore /build even if it’s a symlink. 2014-02-16 12:41:41 +00:00
.gitmodules Build compiler-rt and link it to all crates, similarly to morestack. 2014-02-11 15:59:59 -08:00
.mailmap .mailmap: tolerate different names, emails in shortlog 2013-06-05 23:26:00 +05:30
AUTHORS.txt Update extract-tests.py to use same test directives as rustdoc. 2014-01-28 14:52:36 -06:00
configure mk: Address review feedback 2014-02-14 19:17:50 -08:00
CONTRIBUTING.md Various READMEs and docs cleanup 2014-01-11 19:41:31 +01:00
COPYRIGHT Update some copyright dates 2014-01-08 18:04:43 -08:00
LICENSE-APACHE Update license, add license boilerplate to most files. Remainder will follow. 2012-12-03 17:12:14 -08:00
LICENSE-MIT Update some copyright dates 2014-01-08 18:04:43 -08:00
Makefile.in mk: Talk about make clean in the build help 2014-02-18 11:55:34 +01:00
README.md Remove rustpkg. 2014-02-02 03:08:56 -05:00
RELEASES.txt More 0.9 release notes 2014-01-06 14:52:16 -08:00

README.md

The Rust Programming Language

This is a compiler for Rust, including standard libraries, tools and documentation.

Quick Start

Windows

  1. Download and use the installer and MinGW.
  2. Read the tutorial.
  3. Enjoy!

Note: Windows users can read the detailed getting started notes on the wiki.

Linux / OS X

  1. Make sure you have installed the dependencies:

    • g++ 4.4 or clang++ 3.x
    • python 2.6 or later (but not 3.x)
    • perl 5.0 or later
    • GNU make 3.81 or later
    • curl

  2. Download and build Rust:

    You can either download a tarball or build directly from the repo.

    To build from the tarball do:

     $ curl -O http://static.rust-lang.org/dist/rust-0.9.tar.gz
 $ tar -xzf rust-0.9.tar.gz
 $ cd rust-0.9

    Or to build from the repo do:

     $ git clone https://github.com/mozilla/rust.git
 $ cd rust

    Now that you have Rust's source code, you can configure and build it:

     $ ./configure
 $ make && make install

    Note: You may need to use sudo make install if you do not normally have permission to modify the destination directory. The install locations can be adjusted by passing a --prefix argument to configure. Various other options are also supported, pass --help for more information on them.

    When complete, make install will place several programs into /usr/local/bin: rustc, the Rust compiler, and rustdoc, the API-documentation tool. system.

  3. Read the tutorial.

  4. Enjoy!

Notes

Since the Rust compiler is written in Rust, it must be built by a precompiled "snapshot" version of itself (made in an earlier state of development). As such, source builds require a connection to the Internet, to fetch snapshots, and an OS that can execute the available snapshot binaries.

Snapshot binaries are currently built and tested on several platforms:

  • Windows (7, 8, Server 2008 R2), x86 only
  • Linux (2.6.18 or later, various distributions), x86 and x86-64
  • OSX 10.7 (Lion) or greater, x86 and x86-64

You may find that other platforms work, but these are our officially supported build environments that are most likely to work.

Rust currently needs about 1.5 GiB of RAM to build without swapping; if it hits swap, it will take a very long time to build.

There is a lot more documentation in the wiki.

License

Rust is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.

See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.