rustbuild: Rewrite user-facing interface

This commit is a rewrite of the user-facing interface to the rustbuild build
system. The intention here is to make it much easier to compile/test the project
without having to remember weird rule names and such. An overall view of the new
interface is:

    # build everything
    ./x.py build

    # document everyting
    ./x.py doc

    # test everything
    ./x.py test

    # test libstd
    ./x.py test src/libstd

    # build libcore stage0
    ./x.py build src/libcore --stage 0

    # run stage1 run-pass tests
    ./x.py test src/test/run-pass --stage 1

The `src/bootstrap/bootstrap.py` script is now aliased as a top-level `x.py`
script. This `x` was chosen to be both short and easily tab-completable (no
collisions in that namespace!). The build system now accepts a "subcommand" of
what to do next, the main ones being build/doc/test.

Each subcommand then receives an optional list of arguments. These arguments are
paths in the source repo of what to work with. That is, if you want to test a
directory, you just pass that directory as an argument.

The purpose of this rewrite is to do away with all of the arcane renames like
"rpass" is the "run-pass" suite, "cfail" is the "compile-fail" suite, etc. By
simply working with directories and files it's much more intuitive of how to run
a test (just pass it as an argument).

The rustbuild step/dependency management was also rewritten along the way to
make this easy to work with and define, but that's largely just a refactoring of
what was there before.

The *intention* is that this support is extended for arbitrary files (e.g.
`src/test/run-pass/my-test-case.rs`), but that isn't quite implemented just yet.
Instead directories work for now but we can follow up with stricter path
filtering logic to plumb through all the arguments.
This commit is contained in:
Alex Crichton 2016-10-21 13:18:09 -07:00
parent 5665bdf3e3
commit a270b8014c
17 changed files with 1162 additions and 1011 deletions

View File

@ -127,7 +127,7 @@ ones from MSYS if you have it installed). You'll also need Visual Studio 2013 or
newer with the C++ tools. Then all you need to do is to kick off rustbuild.
```
python .\src\bootstrap\bootstrap.py
python x.py build
```
Currently rustbuild only works with some known versions of Visual Studio. If you
@ -137,7 +137,7 @@ by manually calling the appropriate vcvars file before running the bootstrap.
```
CALL "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\amd64\vcvars64.bat"
python .\src\bootstrap\bootstrap.py
python x.py build
```
## Building Documentation

20
src/Cargo.lock generated
View File

@ -40,9 +40,9 @@ name = "bootstrap"
version = "0.0.0"
dependencies = [
"build_helper 0.1.0",
"cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
"cmake 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
"filetime 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
"gcc 0.3.38 (git+https://github.com/alexcrichton/gcc-rs)",
"gcc 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)",
"getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
@ -63,7 +63,7 @@ version = "0.1.0"
[[package]]
name = "cmake"
version = "0.1.17"
version = "0.1.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"gcc 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)",
@ -131,11 +131,6 @@ dependencies = [
name = "fmt_macros"
version = "0.0.0"
[[package]]
name = "gcc"
version = "0.3.38"
source = "git+https://github.com/alexcrichton/gcc-rs#be620ac6d3ddb498cd0c700d5312c6a4c3c19597"
[[package]]
name = "gcc"
version = "0.3.38"
@ -189,7 +184,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
name = "linkchecker"
version = "0.1.0"
dependencies = [
"url 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"url 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -725,7 +720,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "url"
version = "1.2.2"
version = "1.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -743,10 +738,9 @@ version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[metadata]
"checksum cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "dfcf5bcece56ef953b8ea042509e9dcbdfe97820b7e20d86beb53df30ed94978"
"checksum cmake 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)" = "0e5bcf27e097a184c1df4437654ed98df3d7a516e8508a6ba45d8b092bbdf283"
"checksum env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "15abd780e45b3ea4f76b4e9a26ff4843258dd8a3eed2775a0e7368c2e7936c2f"
"checksum filetime 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "5363ab8e4139b8568a6237db5248646e5a8a2f89bd5ccb02092182b11fd3e922"
"checksum gcc 0.3.38 (git+https://github.com/alexcrichton/gcc-rs)" = "<none>"
"checksum gcc 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)" = "553f11439bdefe755bf366b264820f1da70f3aaf3924e594b886beb9c831bcf5"
"checksum getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9047cfbd08a437050b363d35ef160452c5fe8ea5187ae0a624708c91581d685"
"checksum idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1053236e00ce4f668aeca4a769a09b3bf5a682d802abd6f3cb39374f6b162c11"
@ -760,6 +754,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum toml 0.1.30 (registry+https://github.com/rust-lang/crates.io-index)" = "0590d72182e50e879c4da3b11c6488dae18fccb1ae0c7a3eda18e16795844796"
"checksum unicode-bidi 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c1f7ceb96afdfeedee42bade65a0d585a6a0106f681b6749c8ff4daa8df30b3f"
"checksum unicode-normalization 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "26643a2f83bac55f1976fb716c10234485f9202dcd65cfbdf9da49867b271172"
"checksum url 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9ba5a45db1d2e0effb7a1c00cc73ffc63a973da8c7d1fcd5b46f24285ade6c54"
"checksum url 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "48ccf7bd87a81b769cf84ad556e034541fb90e1cd6d4bc375c822ed9500cd9d7"
"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"

View File

@ -27,7 +27,7 @@ num_cpus = "0.2"
toml = "0.1"
getopts = "0.2"
rustc-serialize = "0.3"
gcc = { git = "https://github.com/alexcrichton/gcc-rs" }
gcc = "0.3.36"
libc = "0.2"
md5 = "0.1"

View File

@ -10,8 +10,64 @@ system.
## Using rustbuild
When configuring Rust via `./configure`, pass the following to enable building
via this build system:
The rustbuild build system has a primary entry point, a top level `x.py` script:
```
python ./x.py build
```
Note that if you're on Unix you should be able to execute the script directly:
```
./x.py build
```
The script accepts commands, flags, and filters to determine what to do:
* `build` - a general purpose command for compiling code. Alone `build` will
bootstrap the entire compiler, and otherwise arguments passed indicate what to
build. For example:
```
# build the whole compiler
./x.py build
# build the stage1 compier
./x.py build --stage 1
# build stage0 libstd
./x.py build --stage 0 src/libstd
# build a particular crate in stage0
./x.py build --stage 0 src/libtest
```
* `test` - a command for executing unit tests. Like the `build` command this
will execute the entire test suite by default, and otherwise it can be used to
select which test suite is run:
```
# run all unit tests
./x.py test
# execute the run-pass test suite
./x.py test src/test/run-pass
# execute only some tests in the run-pass test suite
./x.py test src/test/run-pass --filter my-filter
# execute tests in the standard library in stage0
./x.py test --stage 0 src/libstd
# execute all doc tests
./x.py test src/doc
```
* `doc` - a command for building documentation. Like above can take arguments
for what to document.
If you're more used to `./configure` and `make`, however, then you can also
configure the build system to use rustbuild instead of the old makefiles:
```
./configure --enable-rustbuild
@ -19,15 +75,7 @@ make
```
Afterwards the `Makefile` which is generated will have a few commands like
`make check`, `make tidy`, etc. For finer-grained control, the
`bootstrap.py` entry point can be used:
```
python src/bootstrap/bootstrap.py
```
This accepts a number of options like `--stage` and `--step` which can configure
what's actually being done.
`make check`, `make tidy`, etc.
## Configuring rustbuild
@ -47,7 +95,7 @@ being invoked manually (via the python script).
The rustbuild build system goes through a few phases to actually build the
compiler. What actually happens when you invoke rustbuild is:
1. The entry point script, `src/bootstrap/bootstrap.py` is run. This script is
1. The entry point script, `x.py` is run. This script is
responsible for downloading the stage0 compiler/Cargo binaries, and it then
compiles the build system itself (this folder). Finally, it then invokes the
actual `bootstrap` binary build system.

View File

@ -399,12 +399,10 @@ def main():
# Run the bootstrap
args = [os.path.join(rb.build_dir, "bootstrap/debug/bootstrap")]
args.append('--src')
args.append(rb.rust_root)
args.append('--build')
args.append(rb.build)
args.extend(sys.argv[1:])
env = os.environ.copy()
env["BUILD"] = rb.build
env["SRC"] = rb.rust_root
env["BOOTSTRAP_PARENT_ID"] = str(os.getpid())
rb.run(args, env)

View File

@ -13,44 +13,19 @@
//! This file implements the various regression test suites that we execute on
//! our CI.
use std::collections::{HashMap, HashSet};
use std::collections::HashSet;
use std::env;
use std::fs;
use std::path::{PathBuf, Path};
use std::process::Command;
use build_helper::output;
use rustc_serialize::json;
use {Build, Compiler, Mode};
use util::{self, dylib_path, dylib_path_var};
const ADB_TEST_DIR: &'static str = "/data/tmp";
#[derive(RustcDecodable)]
struct Output {
packages: Vec<Package>,
resolve: Resolve,
}
#[derive(RustcDecodable)]
struct Package {
id: String,
name: String,
source: Option<String>,
}
#[derive(RustcDecodable)]
struct Resolve {
nodes: Vec<ResolveNode>,
}
#[derive(RustcDecodable)]
struct ResolveNode {
id: String,
dependencies: Vec<String>,
}
/// Runs the `linkchecker` tool as compiled in `stage` by the `host` compiler.
///
/// This tool in `src/tools` will verify the validity of all our links in the
@ -181,7 +156,7 @@ pub fn compiletest(build: &Build,
let llvm_version = output(Command::new(&llvm_config).arg("--version"));
cmd.arg("--llvm-version").arg(llvm_version);
cmd.args(&build.flags.args);
cmd.args(&build.flags.cmd.test_args());
if build.config.verbose || build.flags.verbose {
cmd.arg("--verbose");
@ -282,7 +257,7 @@ fn markdown_test(build: &Build, compiler: &Compiler, markdown: &Path) {
cmd.arg("--test");
cmd.arg(markdown);
let mut test_args = build.flags.args.join(" ");
let mut test_args = build.flags.cmd.test_args().join(" ");
if build.config.quiet_tests {
test_args.push_str(" --quiet");
}
@ -302,7 +277,8 @@ fn markdown_test(build: &Build, compiler: &Compiler, markdown: &Path) {
pub fn krate(build: &Build,
compiler: &Compiler,
target: &str,
mode: Mode) {
mode: Mode,
krate: Option<&str>) {
let (name, path, features, root) = match mode {
Mode::Libstd => {
("libstd", "src/rustc/std_shim", build.std_features(), "std_shim")
@ -318,24 +294,6 @@ pub fn krate(build: &Build,
println!("Testing {} stage{} ({} -> {})", name, compiler.stage,
compiler.host, target);
// Run `cargo metadata` to figure out what crates we're testing.
//
// Down below we're going to call `cargo test`, but to test the right set
// of packages we're going to have to know what `-p` arguments to pass it
// to know what crates to test. Here we run `cargo metadata` to learn about
// the dependency graph and what `-p` arguments there are.
let mut cargo = Command::new(&build.cargo);
cargo.arg("metadata")
.arg("--manifest-path").arg(build.src.join(path).join("Cargo.toml"));
let output = output(&mut cargo);
let output: Output = json::decode(&output).unwrap();
let id2pkg = output.packages.iter()
.map(|pkg| (&pkg.id, pkg))
.collect::<HashMap<_, _>>();
let id2deps = output.resolve.nodes.iter()
.map(|node| (&node.id, &node.dependencies))
.collect::<HashMap<_, _>>();
// Build up the base `cargo test` command.
//
// Pass in some standard flags then iterate over the graph we've discovered
@ -346,24 +304,25 @@ pub fn krate(build: &Build,
.arg(build.src.join(path).join("Cargo.toml"))
.arg("--features").arg(features);
let mut visited = HashSet::new();
let root_pkg = output.packages.iter().find(|p| p.name == root).unwrap();
let mut next = vec![&root_pkg.id];
while let Some(id) = next.pop() {
// Skip any packages with sources listed, as these come from crates.io
// and we shouldn't be testing them.
if id2pkg[id].source.is_some() {
continue
match krate {
Some(krate) => {
cargo.arg("-p").arg(krate);
}
// Right now jemalloc is our only target-specific crate in the sense
// that it's not present on all platforms. Custom skip it here for now,
// but if we add more this probably wants to get more generalized.
if !id.contains("jemalloc") {
cargo.arg("-p").arg(&id2pkg[id].name);
}
for dep in id2deps[id] {
if visited.insert(dep) {
next.push(dep);
None => {
let mut visited = HashSet::new();
let mut next = vec![root];
while let Some(name) = next.pop() {
// Right now jemalloc is our only target-specific crate in the sense
// that it's not present on all platforms. Custom skip it here for now,
// but if we add more this probably wants to get more generalized.
if !name.contains("jemalloc") {
cargo.arg("-p").arg(name);
}
for dep in build.crates[name].deps.iter() {
if visited.insert(dep) {
next.push(dep);
}
}
}
}
}
@ -389,7 +348,7 @@ pub fn krate(build: &Build,
build.run(cargo.arg("--no-run"));
krate_emscripten(build, compiler, target, mode);
} else {
cargo.args(&build.flags.args);
cargo.args(&build.flags.cmd.test_args());
build.run(&mut cargo);
}
}
@ -421,7 +380,7 @@ fn krate_android(build: &Build,
target = target,
test = test_file_name,
log = log,
args = build.flags.args.join(" "));
args = build.flags.cmd.test_args().join(" "));
let output = output(Command::new("adb").arg("shell").arg(&program));
println!("{}", output);

View File

@ -25,17 +25,17 @@ pub fn clean(build: &Build) {
rm_rf(build, &build.out.join("tmp"));
for host in build.config.host.iter() {
let entries = match build.out.join(host).read_dir() {
Ok(iter) => iter,
Err(_) => continue,
};
let out = build.out.join(host);
rm_rf(build, &out.join("doc"));
for stage in 0..4 {
rm_rf(build, &out.join(format!("stage{}", stage)));
rm_rf(build, &out.join(format!("stage{}-std", stage)));
rm_rf(build, &out.join(format!("stage{}-rustc", stage)));
rm_rf(build, &out.join(format!("stage{}-tools", stage)));
rm_rf(build, &out.join(format!("stage{}-test", stage)));
for entry in entries {
let entry = t!(entry);
if entry.file_name().to_str() == Some("llvm") {
continue
}
t!(fs::remove_dir_all(&entry.path()));
}
}
}

View File

@ -64,8 +64,8 @@ pub fn std<'a>(build: &'a Build, target: &str, compiler: &Compiler<'a>) {
}
build.run(&mut cargo);
update_mtime(&libstd_stamp(build, compiler, target));
std_link(build, target, compiler, compiler.host);
update_mtime(&libstd_stamp(build, &compiler, target));
std_link(build, target, compiler.stage, compiler.host);
}
/// Link all libstd rlibs/dylibs into the sysroot location.
@ -74,11 +74,12 @@ pub fn std<'a>(build: &'a Build, target: &str, compiler: &Compiler<'a>) {
/// by `compiler` into `host`'s sysroot.
pub fn std_link(build: &Build,
target: &str,
compiler: &Compiler,
stage: u32,
host: &str) {
let compiler = Compiler::new(stage, &build.config.build);
let target_compiler = Compiler::new(compiler.stage, host);
let libdir = build.sysroot_libdir(&target_compiler, target);
let out_dir = build.cargo_out(compiler, Mode::Libstd, target);
let out_dir = build.cargo_out(&compiler, Mode::Libstd, target);
// If we're linking one compiler host's output into another, then we weren't
// called from the `std` method above. In that case we clean out what's
@ -146,7 +147,7 @@ pub fn test<'a>(build: &'a Build, target: &str, compiler: &Compiler<'a>) {
.arg(build.src.join("src/rustc/test_shim/Cargo.toml"));
build.run(&mut cargo);
update_mtime(&libtest_stamp(build, compiler, target));
test_link(build, target, compiler, compiler.host);
test_link(build, target, compiler.stage, compiler.host);
}
/// Link all libtest rlibs/dylibs into the sysroot location.
@ -155,11 +156,12 @@ pub fn test<'a>(build: &'a Build, target: &str, compiler: &Compiler<'a>) {
/// by `compiler` into `host`'s sysroot.
pub fn test_link(build: &Build,
target: &str,
compiler: &Compiler,
stage: u32,
host: &str) {
let compiler = Compiler::new(stage, &build.config.build);
let target_compiler = Compiler::new(compiler.stage, host);
let libdir = build.sysroot_libdir(&target_compiler, target);
let out_dir = build.cargo_out(compiler, Mode::Libtest, target);
let out_dir = build.cargo_out(&compiler, Mode::Libtest, target);
add_to_sysroot(&out_dir, &libdir);
}
@ -218,7 +220,7 @@ pub fn rustc<'a>(build: &'a Build, target: &str, compiler: &Compiler<'a>) {
}
build.run(&mut cargo);
rustc_link(build, target, compiler, compiler.host);
rustc_link(build, target, compiler.stage, compiler.host);
}
/// Link all librustc rlibs/dylibs into the sysroot location.
@ -227,11 +229,12 @@ pub fn rustc<'a>(build: &'a Build, target: &str, compiler: &Compiler<'a>) {
/// by `compiler` into `host`'s sysroot.
pub fn rustc_link(build: &Build,
target: &str,
compiler: &Compiler,
stage: u32,
host: &str) {
let compiler = Compiler::new(stage, &build.config.build);
let target_compiler = Compiler::new(compiler.stage, host);
let libdir = build.sysroot_libdir(&target_compiler, target);
let out_dir = build.cargo_out(compiler, Mode::Librustc, target);
let out_dir = build.cargo_out(&compiler, Mode::Librustc, target);
add_to_sysroot(&out_dir, &libdir);
}
@ -259,7 +262,10 @@ fn compiler_file(compiler: &Path, file: &str) -> PathBuf {
/// must have been previously produced by the `stage - 1` build.config.build
/// compiler.
pub fn assemble_rustc(build: &Build, stage: u32, host: &str) {
assert!(stage > 0, "the stage0 compiler isn't assembled, it's downloaded");
// nothing to do in stage0
if stage == 0 {
return
}
// The compiler that we're assembling
let target_compiler = Compiler::new(stage, host);

View File

@ -19,7 +19,6 @@
use std::fs::{self, File};
use std::io::prelude::*;
use std::path::Path;
use std::process::Command;
use {Build, Compiler, Mode};
@ -30,8 +29,9 @@
///
/// This will not actually generate any documentation if the documentation has
/// already been generated.
pub fn rustbook(build: &Build, stage: u32, target: &str, name: &str, out: &Path) {
t!(fs::create_dir_all(out));
pub fn rustbook(build: &Build, stage: u32, target: &str, name: &str) {
let out = build.doc_out(target);
t!(fs::create_dir_all(&out));
let out = out.join(name);
let compiler = Compiler::new(stage, &build.config.build);
@ -57,9 +57,10 @@ pub fn rustbook(build: &Build, stage: u32, target: &str, name: &str, out: &Path)
/// `STAMP` alongw ith providing the various header/footer HTML we've cutomized.
///
/// In the end, this is just a glorified wrapper around rustdoc!
pub fn standalone(build: &Build, stage: u32, target: &str, out: &Path) {
pub fn standalone(build: &Build, stage: u32, target: &str) {
println!("Documenting stage{} standalone ({})", stage, target);
t!(fs::create_dir_all(out));
let out = build.doc_out(target);
t!(fs::create_dir_all(&out));
let compiler = Compiler::new(stage, &build.config.build);
@ -109,7 +110,7 @@ pub fn standalone(build: &Build, stage: u32, target: &str, out: &Path) {
.arg("--html-in-header").arg(&favicon)
.arg("--markdown-playground-url")
.arg("https://play.rust-lang.org/")
.arg("-o").arg(out)
.arg("-o").arg(&out)
.arg(&path);
if filename == "reference.md" {
@ -131,9 +132,10 @@ pub fn standalone(build: &Build, stage: u32, target: &str, out: &Path) {
///
/// This will generate all documentation for the standard library and its
/// dependencies. This is largely just a wrapper around `cargo doc`.
pub fn std(build: &Build, stage: u32, target: &str, out: &Path) {
pub fn std(build: &Build, stage: u32, target: &str) {
println!("Documenting stage{} std ({})", stage, target);
t!(fs::create_dir_all(out));
let out = build.doc_out(target);
t!(fs::create_dir_all(&out));
let compiler = Compiler::new(stage, &build.config.build);
let out_dir = build.stage_out(&compiler, Mode::Libstd)
.join(target).join("doc");
@ -146,16 +148,17 @@ pub fn std(build: &Build, stage: u32, target: &str, out: &Path) {
.arg(build.src.join("src/rustc/std_shim/Cargo.toml"))
.arg("--features").arg(build.std_features());
build.run(&mut cargo);
cp_r(&out_dir, out)
cp_r(&out_dir, &out)
}
/// Compile all libtest documentation.
///
/// This will generate all documentation for libtest and its dependencies. This
/// is largely just a wrapper around `cargo doc`.
pub fn test(build: &Build, stage: u32, target: &str, out: &Path) {
pub fn test(build: &Build, stage: u32, target: &str) {
println!("Documenting stage{} test ({})", stage, target);
t!(fs::create_dir_all(out));
let out = build.doc_out(target);
t!(fs::create_dir_all(&out));
let compiler = Compiler::new(stage, &build.config.build);
let out_dir = build.stage_out(&compiler, Mode::Libtest)
.join(target).join("doc");
@ -167,16 +170,17 @@ pub fn test(build: &Build, stage: u32, target: &str, out: &Path) {
cargo.arg("--manifest-path")
.arg(build.src.join("src/rustc/test_shim/Cargo.toml"));
build.run(&mut cargo);
cp_r(&out_dir, out)
cp_r(&out_dir, &out)
}
/// Generate all compiler documentation.
///
/// This will generate all documentation for the compiler libraries and their
/// dependencies. This is largely just a wrapper around `cargo doc`.
pub fn rustc(build: &Build, stage: u32, target: &str, out: &Path) {
pub fn rustc(build: &Build, stage: u32, target: &str) {
println!("Documenting stage{} compiler ({})", stage, target);
t!(fs::create_dir_all(out));
let out = build.doc_out(target);
t!(fs::create_dir_all(&out));
let compiler = Compiler::new(stage, &build.config.build);
let out_dir = build.stage_out(&compiler, Mode::Librustc)
.join(target).join("doc");
@ -189,14 +193,15 @@ pub fn rustc(build: &Build, stage: u32, target: &str, out: &Path) {
.arg(build.src.join("src/rustc/Cargo.toml"))
.arg("--features").arg(build.rustc_features());
build.run(&mut cargo);
cp_r(&out_dir, out)
cp_r(&out_dir, &out)
}
/// Generates the HTML rendered error-index by running the
/// `error_index_generator` tool.
pub fn error_index(build: &Build, stage: u32, target: &str, out: &Path) {
pub fn error_index(build: &Build, stage: u32, target: &str) {
println!("Documenting stage{} error index ({})", stage, target);
t!(fs::create_dir_all(out));
let out = build.doc_out(target);
t!(fs::create_dir_all(&out));
let compiler = Compiler::new(stage, &build.config.build);
let mut index = build.tool_cmd(&compiler, "error_index_generator");
index.arg("html");

View File

@ -13,30 +13,46 @@
//! This module implements the command-line parsing of the build system which
//! has various flags to configure how it's run.
use std::env;
use std::fs;
use std::path::PathBuf;
use std::process;
use std::slice;
use getopts::Options;
use getopts::{Matches, Options};
use Build;
use config::Config;
use metadata;
use step;
/// Deserialized version of all flags for this compile.
pub struct Flags {
pub verbose: bool,
pub stage: Option<u32>,
pub build: String,
pub host: Filter,
pub target: Filter,
pub step: Vec<String>,
pub host: Vec<String>,
pub target: Vec<String>,
pub config: Option<PathBuf>,
pub src: Option<PathBuf>,
pub jobs: Option<u32>,
pub args: Vec<String>,
pub clean: bool,
pub cmd: Subcommand,
}
pub struct Filter {
values: Vec<String>,
pub enum Subcommand {
Build {
paths: Vec<PathBuf>,
},
Doc {
paths: Vec<PathBuf>,
},
Test {
paths: Vec<PathBuf>,
test_args: Vec<String>,
},
Clean,
Dist {
install: bool,
},
}
impl Flags {
@ -44,29 +60,177 @@ pub fn parse(args: &[String]) -> Flags {
let mut opts = Options::new();
opts.optflag("v", "verbose", "use verbose output");
opts.optopt("", "config", "TOML configuration file for build", "FILE");
opts.optopt("", "build", "build target of the stage0 compiler", "BUILD");
opts.optmulti("", "host", "host targets to build", "HOST");
opts.reqopt("", "build", "build target of the stage0 compiler", "BUILD");
opts.optmulti("", "target", "targets to build", "TARGET");
opts.optmulti("s", "step", "build step to execute", "STEP");
opts.optmulti("", "target", "target targets to build", "TARGET");
opts.optopt("", "stage", "stage to build", "N");
opts.optopt("", "src", "path to repo root", "DIR");
opts.optopt("", "src", "path to the root of the rust checkout", "DIR");
opts.optopt("j", "jobs", "number of jobs to run in parallel", "JOBS");
opts.optflag("", "clean", "clean output directory");
opts.optflag("h", "help", "print this help message");
let usage = |n| -> ! {
let brief = format!("Usage: rust.py [options]");
print!("{}", opts.usage(&brief));
let usage = |n, opts: &Options| -> ! {
let command = args.get(0).map(|s| &**s);
let brief = format!("Usage: x.py {} [options] [<args>...]",
command.unwrap_or("<command>"));
println!("{}", opts.usage(&brief));
match command {
Some("build") => {
println!("\
Arguments:
This subcommand accepts a number of positional arguments of directories to
the crates and/or artifacts to compile. For example:
./x.py build src/libcore
./x.py build src/libproc_macro
./x.py build src/libstd --stage 1
If no arguments are passed then the complete artifacts for that stage are
also compiled.
./x.py build
./x.py build --stage 1
For a quick build with a usable compile, you can pass:
./x.py build --stage 1 src/libtest
");
}
Some("test") => {
println!("\
Arguments:
This subcommand accepts a number of positional arguments of directories to
tests that should be compiled and run. For example:
./x.py test src/test/run-pass
./x.py test src/test/run-pass/assert-*
./x.py test src/libstd --test-args hash_map
./x.py test src/libstd --stage 0
If no arguments are passed then the complete artifacts for that stage are
compiled and tested.
./x.py test
./x.py test --stage 1
");
}
Some("doc") => {
println!("\
Arguments:
This subcommand accepts a number of positional arguments of directories of
documentation to build. For example:
./x.py doc src/doc/book
./x.py doc src/doc/nomicon
./x.py doc src/libstd
If no arguments are passed then everything is documented:
./x.py doc
./x.py doc --stage 1
");
}
_ => {}
}
if let Some(command) = command {
if command == "build" ||
command == "dist" ||
command == "doc" ||
command == "test" ||
command == "clean" {
println!("Available invocations:");
if args.iter().any(|a| a == "-v") {
let flags = Flags::parse(&["build".to_string()]);
let mut config = Config::default();
config.build = flags.build.clone();
let mut build = Build::new(flags, config);
metadata::build(&mut build);
step::build_rules(&build).print_help(command);
} else {
println!(" ... elided, run `./x.py {} -h -v` to see",
command);
}
println!("");
}
}
println!("\
Subcommands:
build Compile either the compiler or libraries
test Build and run some test suites
doc Build documentation
clean Clean out build directories
dist Build and/or install distribution artifacts
To learn more about a subcommand, run `./x.py <command> -h`
");
process::exit(n);
};
let m = opts.parse(args).unwrap_or_else(|e| {
println!("failed to parse options: {}", e);
usage(1);
});
if m.opt_present("h") {
usage(0);
if args.len() == 0 {
println!("a command must be passed");
usage(1, &opts);
}
let parse = |opts: &Options| {
let m = opts.parse(&args[1..]).unwrap_or_else(|e| {
println!("failed to parse options: {}", e);
usage(1, opts);
});
if m.opt_present("h") {
usage(0, opts);
}
return m
};
let cwd = t!(env::current_dir());
let remaining_as_path = |m: &Matches| {
m.free.iter().map(|p| cwd.join(p)).collect::<Vec<_>>()
};
let m: Matches;
let cmd = match &args[0][..] {
"build" => {
m = parse(&opts);
Subcommand::Build { paths: remaining_as_path(&m) }
}
"doc" => {
m = parse(&opts);
Subcommand::Doc { paths: remaining_as_path(&m) }
}
"test" => {
opts.optmulti("", "test-args", "extra arguments", "ARGS");
m = parse(&opts);
Subcommand::Test {
paths: remaining_as_path(&m),
test_args: m.opt_strs("test-args"),
}
}
"clean" => {
m = parse(&opts);
if m.free.len() > 0 {
println!("clean takes no arguments");
usage(1, &opts);
}
Subcommand::Clean
}
"dist" => {
opts.optflag("", "install", "run installer as well");
m = parse(&opts);
Subcommand::Dist {
install: m.opt_present("install"),
}
}
cmd => {
println!("unknown command: {}", cmd);
usage(1, &opts);
}
};
let cfg_file = m.opt_str("config").map(PathBuf::from).or_else(|| {
if fs::metadata("config.toml").is_ok() {
@ -78,26 +242,27 @@ pub fn parse(args: &[String]) -> Flags {
Flags {
verbose: m.opt_present("v"),
clean: m.opt_present("clean"),
stage: m.opt_str("stage").map(|j| j.parse().unwrap()),
build: m.opt_str("build").unwrap(),
host: Filter { values: m.opt_strs("host") },
target: Filter { values: m.opt_strs("target") },
step: m.opt_strs("step"),
build: m.opt_str("build").unwrap_or_else(|| {
env::var("BUILD").unwrap()
}),
host: m.opt_strs("host"),
target: m.opt_strs("target"),
config: cfg_file,
src: m.opt_str("src").map(PathBuf::from),
jobs: m.opt_str("jobs").map(|j| j.parse().unwrap()),
args: m.free.clone(),
cmd: cmd,
}
}
}
impl Filter {
pub fn contains(&self, name: &str) -> bool {
self.values.len() == 0 || self.values.iter().any(|s| s == name)
}
pub fn iter(&self) -> slice::Iter<String> {
self.values.iter()
impl Subcommand {
pub fn test_args(&self) -> Vec<&str> {
match *self {
Subcommand::Test { ref test_args, .. } => {
test_args.iter().flat_map(|s| s.split_whitespace()).collect()
}
_ => Vec::new(),
}
}
}

View File

@ -57,6 +57,7 @@ macro_rules! t {
mod check;
mod clean;
mod compile;
mod metadata;
mod config;
mod dist;
mod doc;
@ -76,7 +77,7 @@ pub unsafe fn setup() {}
}
pub use config::Config;
pub use flags::Flags;
pub use flags::{Flags, Subcommand};
/// A structure representing a Rust compiler.
///
@ -130,6 +131,17 @@ pub struct Build {
// Runtime state filled in later on
cc: HashMap<String, (gcc::Tool, Option<PathBuf>)>,
cxx: HashMap<String, gcc::Tool>,
crates: HashMap<String, Crate>,
}
#[derive(Debug)]
struct Crate {
name: String,
deps: Vec<String>,
path: PathBuf,
doc_step: String,
build_step: String,
test_step: String,
}
/// The various "modes" of invoking Cargo.
@ -162,7 +174,9 @@ impl Build {
/// By default all build output will be placed in the current directory.
pub fn new(flags: Flags, config: Config) -> Build {
let cwd = t!(env::current_dir());
let src = flags.src.clone().unwrap_or(cwd.clone());
let src = flags.src.clone().or_else(|| {
env::var_os("SRC").map(|x| x.into())
}).unwrap_or(cwd.clone());
let out = cwd.join("build");
let stage0_root = out.join(&config.build).join("stage0/bin");
@ -196,6 +210,7 @@ pub fn new(flags: Flags, config: Config) -> Build {
package_vers: String::new(),
cc: HashMap::new(),
cxx: HashMap::new(),
crates: HashMap::new(),
gdb_version: None,
lldb_version: None,
lldb_python_dir: None,
@ -204,13 +219,11 @@ pub fn new(flags: Flags, config: Config) -> Build {
/// Executes the entire build, as configured by the flags and configuration.
pub fn build(&mut self) {
use step::Source::*;
unsafe {
job::setup();
}
if self.flags.clean {
if let Subcommand::Clean = self.flags.cmd {
return clean::clean(self);
}
@ -232,247 +245,10 @@ pub fn build(&mut self) {
}
self.verbose("updating submodules");
self.update_submodules();
self.verbose("learning about cargo");
metadata::build(self);
// The main loop of the build system.
//
// The `step::all` function returns a topographically sorted list of all
// steps that need to be executed as part of this build. Each step has a
// corresponding entry in `step.rs` and indicates some unit of work that
// needs to be done as part of the build.
//
// Almost all of these are simple one-liners that shell out to the
// corresponding functionality in the extra modules, where more
// documentation can be found.
let steps = step::all(self);
self.verbose("bootstrap build plan:");
for step in &steps {
self.verbose(&format!("{:?}", step));
}
for target in steps {
let doc_out = self.out.join(&target.target).join("doc");
match target.src {
Llvm { _dummy } => {
native::llvm(self, target.target);
}
TestHelpers { _dummy } => {
native::test_helpers(self, target.target);
}
Libstd { compiler } => {
compile::std(self, target.target, &compiler);
}
Libtest { compiler } => {
compile::test(self, target.target, &compiler);
}
Librustc { compiler } => {
compile::rustc(self, target.target, &compiler);
}
LibstdLink { compiler, host } => {
compile::std_link(self, target.target, &compiler, host);
}
LibtestLink { compiler, host } => {
compile::test_link(self, target.target, &compiler, host);
}
LibrustcLink { compiler, host } => {
compile::rustc_link(self, target.target, &compiler, host);
}
Rustc { stage: 0 } => {
// nothing to do...
}
Rustc { stage } => {
compile::assemble_rustc(self, stage, target.target);
}
ToolLinkchecker { stage } => {
compile::tool(self, stage, target.target, "linkchecker");
}
ToolRustbook { stage } => {
compile::tool(self, stage, target.target, "rustbook");
}
ToolErrorIndex { stage } => {
compile::tool(self, stage, target.target,
"error_index_generator");
}
ToolCargoTest { stage } => {
compile::tool(self, stage, target.target, "cargotest");
}
ToolTidy { stage } => {
compile::tool(self, stage, target.target, "tidy");
}
ToolCompiletest { stage } => {
compile::tool(self, stage, target.target, "compiletest");
}
DocBook { stage } => {
doc::rustbook(self, stage, target.target, "book", &doc_out);
}
DocNomicon { stage } => {
doc::rustbook(self, stage, target.target, "nomicon",
&doc_out);
}
DocStandalone { stage } => {
doc::standalone(self, stage, target.target, &doc_out);
}
DocStd { stage } => {
doc::std(self, stage, target.target, &doc_out);
}
DocTest { stage } => {
doc::test(self, stage, target.target, &doc_out);
}
DocRustc { stage } => {
doc::rustc(self, stage, target.target, &doc_out);
}
DocErrorIndex { stage } => {
doc::error_index(self, stage, target.target, &doc_out);
}
CheckLinkcheck { stage } => {
check::linkcheck(self, stage, target.target);
}
CheckCargoTest { stage } => {
check::cargotest(self, stage, target.target);
}
CheckTidy { stage } => {
check::tidy(self, stage, target.target);
}
CheckRPass { compiler } => {
check::compiletest(self, &compiler, target.target,
"run-pass", "run-pass");
}
CheckRPassFull { compiler } => {
check::compiletest(self, &compiler, target.target,
"run-pass", "run-pass-fulldeps");
}
CheckCFail { compiler } => {
check::compiletest(self, &compiler, target.target,
"compile-fail", "compile-fail");
}
CheckCFailFull { compiler } => {
check::compiletest(self, &compiler, target.target,
"compile-fail", "compile-fail-fulldeps")
}
CheckPFail { compiler } => {
check::compiletest(self, &compiler, target.target,
"parse-fail", "parse-fail");
}
CheckRFail { compiler } => {
check::compiletest(self, &compiler, target.target,
"run-fail", "run-fail");
}
CheckRFailFull { compiler } => {
check::compiletest(self, &compiler, target.target,
"run-fail", "run-fail-fulldeps");
}
CheckPretty { compiler } => {
check::compiletest(self, &compiler, target.target,
"pretty", "pretty");
}
CheckPrettyRPass { compiler } => {
check::compiletest(self, &compiler, target.target,
"pretty", "run-pass");
}
CheckPrettyRPassFull { compiler } => {
check::compiletest(self, &compiler, target.target,
"pretty", "run-pass-fulldeps");
}
CheckPrettyRFail { compiler } => {
check::compiletest(self, &compiler, target.target,
"pretty", "run-fail");
}
CheckPrettyRFailFull { compiler } => {
check::compiletest(self, &compiler, target.target,
"pretty", "run-fail-fulldeps");
}
CheckPrettyRPassValgrind { compiler } => {
check::compiletest(self, &compiler, target.target,
"pretty", "run-pass-valgrind");
}
CheckMirOpt { compiler } => {
check::compiletest(self, &compiler, target.target,
"mir-opt", "mir-opt");
}
CheckCodegen { compiler } => {
if self.config.codegen_tests {
check::compiletest(self, &compiler, target.target,
"codegen", "codegen");
}
}
CheckCodegenUnits { compiler } => {
check::compiletest(self, &compiler, target.target,
"codegen-units", "codegen-units");
}
CheckIncremental { compiler } => {
check::compiletest(self, &compiler, target.target,
"incremental", "incremental");
}
CheckUi { compiler } => {
check::compiletest(self, &compiler, target.target,
"ui", "ui");
}
CheckDebuginfo { compiler } => {
if target.target.contains("msvc") {
// nothing to do
} else if target.target.contains("apple") {
check::compiletest(self, &compiler, target.target,
"debuginfo-lldb", "debuginfo");
} else {
check::compiletest(self, &compiler, target.target,
"debuginfo-gdb", "debuginfo");
}
}
CheckRustdoc { compiler } => {
check::compiletest(self, &compiler, target.target,
"rustdoc", "rustdoc");
}
CheckRPassValgrind { compiler } => {
check::compiletest(self, &compiler, target.target,
"run-pass-valgrind", "run-pass-valgrind");
}
CheckDocs { compiler } => {
check::docs(self, &compiler);
}
CheckErrorIndex { compiler } => {
check::error_index(self, &compiler);
}
CheckRMake { compiler } => {
check::compiletest(self, &compiler, target.target,
"run-make", "run-make")
}
CheckCrateStd { compiler } => {
check::krate(self, &compiler, target.target, Mode::Libstd)
}
CheckCrateTest { compiler } => {
check::krate(self, &compiler, target.target, Mode::Libtest)
}
CheckCrateRustc { compiler } => {
check::krate(self, &compiler, target.target, Mode::Librustc)
}
DistDocs { stage } => dist::docs(self, stage, target.target),
DistMingw { _dummy } => dist::mingw(self, target.target),
DistRustc { stage } => dist::rustc(self, stage, target.target),
DistStd { compiler } => dist::std(self, &compiler, target.target),
DistSrc { _dummy } => dist::rust_src(self),
Install { stage } => install::install(self, stage, target.target),
DebuggerScripts { stage } => {
let compiler = Compiler::new(stage, target.target);
dist::debugger_scripts(self,
&self.sysroot(&compiler),
target.target);
}
AndroidCopyLibs { compiler } => {
check::android_copy_libs(self, &compiler, target.target);
}
// pseudo-steps
Dist { .. } |
Doc { .. } |
CheckTarget { .. } |
Check { .. } => {}
}
}
step::run(self);
}
/// Updates all git submodules that we have.
@ -812,6 +588,11 @@ fn llvm_out(&self, target: &str) -> PathBuf {
self.out.join(target).join("llvm")
}
/// Output directory for all documentation for a target
fn doc_out(&self, target: &str) -> PathBuf {
self.out.join(target).join("doc")
}
/// Returns true if no custom `llvm-config` is set for the specified target.
///
/// If no custom `llvm-config` was specified then Rust's llvm will be used.

95
src/bootstrap/metadata.rs Normal file
View File

@ -0,0 +1,95 @@
// Copyright 2016 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::collections::HashMap;
use std::process::Command;
use std::path::PathBuf;
use build_helper::output;
use rustc_serialize::json;
use {Build, Crate};
#[derive(RustcDecodable)]
struct Output {
packages: Vec<Package>,
resolve: Resolve,
}
#[derive(RustcDecodable)]
struct Package {
id: String,
name: String,
source: Option<String>,
manifest_path: String,
}
#[derive(RustcDecodable)]
struct Resolve {
nodes: Vec<ResolveNode>,
}
#[derive(RustcDecodable)]
struct ResolveNode {
id: String,
dependencies: Vec<String>,
}
pub fn build(build: &mut Build) {
build_krate(build, "src/rustc/std_shim");
build_krate(build, "src/rustc/test_shim");
build_krate(build, "src/rustc");
}
fn build_krate(build: &mut Build, krate: &str) {
// Run `cargo metadata` to figure out what crates we're testing.
//
// Down below we're going to call `cargo test`, but to test the right set
// of packages we're going to have to know what `-p` arguments to pass it
// to know what crates to test. Here we run `cargo metadata` to learn about
// the dependency graph and what `-p` arguments there are.
let mut cargo = Command::new(&build.cargo);
cargo.arg("metadata")
.arg("--manifest-path").arg(build.src.join(krate).join("Cargo.toml"));
let output = output(&mut cargo);
let output: Output = json::decode(&output).unwrap();
let mut id2name = HashMap::new();
for package in output.packages {
if package.source.is_none() {
id2name.insert(package.id, package.name.clone());
let mut path = PathBuf::from(package.manifest_path);
path.pop();
build.crates.insert(package.name.clone(), Crate {
build_step: format!("build-crate-{}", package.name),
doc_step: format!("doc-crate-{}", package.name),
test_step: format!("test-crate-{}", package.name),
name: package.name,
deps: Vec::new(),
path: path,
});
}
}
for node in output.resolve.nodes {
let name = match id2name.get(&node.id) {
Some(name) => name,
None => continue,
};
let krate = build.crates.get_mut(name).unwrap();
for dep in node.dependencies.iter() {
let dep = match id2name.get(dep) {
Some(dep) => dep,
None => continue,
};
krate.deps.push(dep.clone());
}
}
}

View File

@ -17,47 +17,46 @@ else
BOOTSTRAP_ARGS :=
endif
BOOTSTRAP := $(CFG_PYTHON) $(CFG_SRC_DIR)src/bootstrap/bootstrap.py $(BOOTSTRAP_ARGS)
BOOTSTRAP := $(CFG_PYTHON) $(CFG_SRC_DIR)src/bootstrap/bootstrap.py
all:
$(Q)$(BOOTSTRAP)
$(Q)$(BOOTSTRAP) build $(BOOTSTRAP_ARGS)
$(Q)$(BOOTSTRAP) doc $(BOOTSTRAP_ARGS)
# Dont use $(Q) here, always show how to invoke the bootstrap script directly
help:
$(BOOTSTRAP) --help
clean:
$(Q)$(BOOTSTRAP) --clean
$(Q)$(BOOTSTRAP) clean $(BOOTSTRAP_ARGS)
rustc-stage1:
$(Q)$(BOOTSTRAP) --step libtest --stage 1
$(Q)$(BOOTSTRAP) build --stage 1 src/libtest $(BOOTSTRAP_ARGS)
rustc-stage2:
$(Q)$(BOOTSTRAP) --step libtest --stage 2
$(Q)$(BOOTSTRAP) build --stage 2 src/libtest $(BOOTSTRAP_ARGS)
docs: doc
doc:
$(Q)$(BOOTSTRAP) --step doc
style:
$(Q)$(BOOTSTRAP) --step doc-style
$(Q)$(BOOTSTRAP) doc $(BOOTSTRAP_ARGS)
nomicon:
$(Q)$(BOOTSTRAP) --step doc-nomicon
$(Q)$(BOOTSTRAP) doc src/doc/nomicon $(BOOTSTRAP_ARGS)
book:
$(Q)$(BOOTSTRAP) --step doc-book
$(Q)$(BOOTSTRAP) doc src/doc/book $(BOOTSTRAP_ARGS)
standalone-docs:
$(Q)$(BOOTSTRAP) --step doc-standalone
$(Q)$(BOOTSTRAP) doc src/doc $(BOOTSTRAP_ARGS)
check:
$(Q)$(BOOTSTRAP) --step check
$(Q)$(BOOTSTRAP) test $(BOOTSTRAP_ARGS)
check-cargotest:
$(Q)$(BOOTSTRAP) --step check-cargotest
$(Q)$(BOOTSTRAP) test src/tools/cargotest $(BOOTSTRAP_ARGS)
dist:
$(Q)$(BOOTSTRAP) --step dist
$(Q)$(BOOTSTRAP) dist $(BOOTSTRAP_ARGS)
install:
ifeq (root user, $(USER) $(patsubst %,user,$(SUDO_USER)))
$(Q)echo "'sudo make install' is not supported currently."
else
$(Q)$(BOOTSTRAP) --step install
$(Q)$(BOOTSTRAP) dist --install $(BOOTSTRAP_ARGS)
endif
tidy:
$(Q)$(BOOTSTRAP) --step check-tidy --stage 0
$(Q)$(BOOTSTRAP) test src/tools/tidy $(BOOTSTRAP_ARGS)
.PHONY: dist

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@ -57,8 +57,7 @@ pub fn cp_r(src: &Path, dst: &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));
t!(fs::create_dir_all(&dst));
cp_r(&path, &dst);
} else {
let _ = fs::remove_file(&dst);

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@ -11,4 +11,4 @@ crate-type = ["dylib"]
[dependencies]
log = { path = "../liblog" }
serialize = { path = "../libserialize" }
syntax_pos = { path = "../libsyntax_pos" }
syntax_pos = { path = "../libsyntax_pos" }

19
x.py Executable file
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@ -0,0 +1,19 @@
#!/usr/bin/env python
# Copyright 2016 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.
import sys
import os
dir = os.path.dirname(__file__)
sys.path.append(os.path.abspath(os.path.join(dir, "src", "bootstrap")))
import bootstrap
bootstrap.main()