679 lines
22 KiB
Plaintext
679 lines
22 KiB
Plaintext
// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// rustpkg - a package manager and build system for Rust
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#[link(name = "rustpkg",
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vers = "0.7-pre",
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uuid = "25de5e6e-279e-4a20-845c-4cabae92daaf",
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url = "https://github.com/mozilla/rust/tree/master/src/librustpkg")];
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#[license = "MIT/ASL2"];
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#[crate_type = "lib"];
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extern mod std;
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extern mod rustc;
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extern mod syntax;
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use core::*;
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pub use core::path::Path;
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use core::hashmap::HashMap;
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use rustc::driver::{driver, session};
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use rustc::metadata::filesearch;
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use std::{getopts};
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use syntax::{ast, diagnostic};
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use util::*;
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use path_util::{build_pkg_id_in_workspace, pkgid_src_in_workspace, u_rwx};
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use path_util::{built_executable_in_workspace, built_library_in_workspace};
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use path_util::{target_executable_in_workspace, target_library_in_workspace};
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use workspace::pkg_parent_workspaces;
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use context::Ctx;
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mod conditions;
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mod context;
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mod path_util;
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#[cfg(test)]
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mod tests;
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mod util;
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mod workspace;
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pub mod usage;
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/// A PkgScript represents user-supplied custom logic for
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/// special build hooks. This only exists for packages with
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/// an explicit package script.
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struct PkgScript<'self> {
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/// Uniquely identifies this package
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id: &'self PkgId,
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// Used to have this field: deps: ~[(~str, Option<~str>)]
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// but I think it shouldn't be stored here
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/// The contents of the package script: either a file path,
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/// or a string containing the text of the input
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input: driver::input,
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/// The session to use *only* for compiling the custom
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/// build script
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sess: session::Session,
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/// The config for compiling the custom build script
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cfg: ast::crate_cfg,
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/// The crate for the custom build script
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crate: @ast::crate,
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/// Directory in which to store build output
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build_dir: Path
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}
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impl<'self> PkgScript<'self> {
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/// Given the path name for a package script
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/// and a package ID, parse the package script into
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/// a PkgScript that we can then execute
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fn parse<'a>(script: Path, workspace: &Path, id: &'a PkgId) -> PkgScript<'a> {
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// Get the executable name that was invoked
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let binary = @copy os::args()[0];
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// Build the rustc session data structures to pass
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// to the compiler
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let options = @session::options {
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binary: binary,
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crate_type: session::bin_crate,
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.. copy *session::basic_options()
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};
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let input = driver::file_input(script);
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let sess = driver::build_session(options, diagnostic::emit);
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let cfg = driver::build_configuration(sess, binary, &input);
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let (crate, _) = driver::compile_upto(sess, copy cfg, &input,
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driver::cu_parse, None);
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let work_dir = build_pkg_id_in_workspace(id, workspace);
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debug!("Returning package script with id %?", id);
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PkgScript {
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id: id,
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input: input,
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sess: sess,
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cfg: cfg,
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crate: crate,
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build_dir: work_dir
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}
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}
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/// Run the contents of this package script, where <what>
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/// is the command to pass to it (e.g., "build", "clean", "install")
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/// Returns a pair of an exit code and list of configs (obtained by
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/// calling the package script's configs() function if it exists
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// FIXME (#4432): Use workcache to only compile the script when changed
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fn run_custom(&self, what: ~str) -> (~[~str], ExitCode) {
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debug!("run_custom: %s", what);
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let sess = self.sess;
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debug!("Working directory = %s", self.build_dir.to_str());
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// Collect together any user-defined commands in the package script
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let crate = util::ready_crate(sess, self.crate);
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debug!("Building output filenames with script name %s",
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driver::source_name(&self.input));
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match filesearch::get_rustpkg_sysroot() {
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Ok(r) => {
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let root = r.pop().pop().pop().pop(); // :-\
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debug!("Root is %s, calling compile_rest", root.to_str());
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let exe = self.build_dir.push(~"pkg" + util::exe_suffix());
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util::compile_crate_from_input(&self.input, self.id,
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Some(copy self.build_dir),
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sess, Some(crate),
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&exe, @copy os::args()[0],
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driver::cu_everything);
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debug!("Running program: %s %s %s", exe.to_str(), root.to_str(), what);
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let status = run::run_program(exe.to_str(), [root.to_str(), what]);
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if status != 0 {
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return (~[], status);
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}
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else {
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debug!("Running program (configs): %s %s %s",
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exe.to_str(), root.to_str(), "configs");
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let output = run::program_output(exe.to_str(), [root.to_str(), ~"configs"]);
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// Run the configs() function to get the configs
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let mut cfgs = ~[];
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for str::each_word(output.out) |w| {
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cfgs.push(w.to_owned());
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}
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(cfgs, output.status)
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}
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}
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Err(e) => {
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fail!("Running package script, couldn't find rustpkg sysroot (%s)", e)
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}
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}
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}
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fn hash(&self) -> ~str {
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self.id.hash()
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}
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}
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impl Ctx {
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fn run(&self, cmd: ~str, args: ~[~str]) {
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match cmd {
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~"build" => {
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if args.len() < 1 {
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return usage::build();
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}
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// The package id is presumed to be the first command-line
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// argument
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let pkgid = PkgId::new(copy args[0]);
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for pkg_parent_workspaces(&pkgid) |workspace| {
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self.build(workspace, &pkgid);
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}
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}
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~"clean" => {
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if args.len() < 1 {
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return usage::build();
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}
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// The package id is presumed to be the first command-line
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// argument
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let pkgid = PkgId::new(copy args[0]);
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let cwd = os::getcwd();
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self.clean(&cwd, &pkgid); // tjc: should use workspace, not cwd
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}
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~"do" => {
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if args.len() < 2 {
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return usage::do_cmd();
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}
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self.do_cmd(copy args[0], copy args[1]);
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}
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~"info" => {
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self.info();
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}
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~"install" => {
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if args.len() < 1 {
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return usage::install();
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}
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// The package id is presumed to be the first command-line
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// argument
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let pkgid = PkgId::new(args[0]);
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for pkg_parent_workspaces(&pkgid) |workspace| {
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self.install(workspace, &pkgid);
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}
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}
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~"prefer" => {
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if args.len() < 1 {
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return usage::uninstall();
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}
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self.prefer(args[0], None);
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}
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~"test" => {
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self.test();
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}
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~"uninstall" => {
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if args.len() < 1 {
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return usage::uninstall();
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}
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self.uninstall(args[0], None);
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}
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~"unprefer" => {
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if args.len() < 1 {
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return usage::uninstall();
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}
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self.unprefer(args[0], None);
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}
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_ => fail!(fmt!("I don't know the command `%s`", cmd))
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}
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}
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fn do_cmd(&self, _cmd: &str, _pkgname: &str) {
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// stub
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fail!("`do` not yet implemented");
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}
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fn build(&self, workspace: &Path, pkgid: &PkgId) {
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let src_dir = pkgid_src_in_workspace(pkgid, workspace);
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let build_dir = build_pkg_id_in_workspace(pkgid, workspace);
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debug!("Destination dir = %s", build_dir.to_str());
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// Create the package source
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let mut src = PkgSrc::new(workspace, &build_dir, pkgid);
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debug!("Package src = %?", src);
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// Is there custom build logic? If so, use it
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let pkg_src_dir = src_dir;
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let mut custom = false;
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debug!("Package source directory = %s", pkg_src_dir.to_str());
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let cfgs = match src.package_script_option(&pkg_src_dir) {
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Some(package_script_path) => {
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let pscript = PkgScript::parse(package_script_path,
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workspace,
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pkgid);
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// Limited right now -- we're only running the post_build
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// hook and probably fail otherwise
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// also post_build should be called pre_build
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let (cfgs, hook_result) = pscript.run_custom(~"post_build");
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debug!("Command return code = %?", hook_result);
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if hook_result != 0 {
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fail!("Error running custom build command")
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}
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custom = true;
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// otherwise, the package script succeeded
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cfgs
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}
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None => {
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debug!("No package script, continuing");
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~[]
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}
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};
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// If there was a package script, it should have finished
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// the build already. Otherwise...
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if !custom {
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// Find crates inside the workspace
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src.find_crates();
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// Build it!
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src.build(&build_dir, cfgs, self.sysroot_opt);
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}
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}
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fn clean(&self, workspace: &Path, id: &PkgId) {
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// Could also support a custom build hook in the pkg
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// script for cleaning files rustpkg doesn't know about.
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// Do something reasonable for now
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let dir = build_pkg_id_in_workspace(id, workspace);
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util::note(fmt!("Cleaning package %s (removing directory %s)",
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id.to_str(), dir.to_str()));
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if os::path_exists(&dir) {
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os::remove_dir_recursive(&dir);
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util::note(fmt!("Removed directory %s", dir.to_str()));
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}
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util::note(fmt!("Cleaned package %s", id.to_str()));
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}
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fn info(&self) {
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// stub
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fail!("info not yet implemented");
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}
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fn install(&self, workspace: &Path, id: &PkgId) {
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use conditions::copy_failed::cond;
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// Should use RUST_PATH in the future.
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// Also should use workcache to not build if not necessary.
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self.build(workspace, id);
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debug!("install: workspace = %s, id = %s", workspace.to_str(),
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id.to_str());
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// Now copy stuff into the install dirs
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let maybe_executable = built_executable_in_workspace(id, workspace);
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let maybe_library = built_library_in_workspace(id, workspace);
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let target_exec = target_executable_in_workspace(id, workspace);
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let target_lib = target_library_in_workspace(id, workspace);
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debug!("target_exec = %s target_lib = %s \
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maybe_executable = %? maybe_library = %?",
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target_exec.to_str(), target_lib.to_str(),
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maybe_executable, maybe_library);
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for maybe_executable.each |exec| {
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debug!("Copying: %s -> %s", exec.to_str(), target_exec.to_str());
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if !(os::mkdir_recursive(&target_exec.dir_path(), u_rwx) &&
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os::copy_file(exec, &target_exec)) {
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cond.raise((copy *exec, copy target_exec));
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}
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}
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for maybe_library.each |lib| {
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debug!("Copying: %s -> %s", lib.to_str(), target_lib.to_str());
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if !(os::mkdir_recursive(&target_lib.dir_path(), u_rwx) &&
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os::copy_file(lib, &target_lib)) {
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cond.raise((copy *lib, copy target_lib));
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}
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}
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}
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fn prefer(&self, _id: &str, _vers: Option<~str>) {
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fail!(~"prefer not yet implemented");
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}
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fn test(&self) {
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// stub
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fail!("test not yet implemented");
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}
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fn uninstall(&self, _id: &str, _vers: Option<~str>) {
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fail!("uninstall not yet implemented");
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}
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fn unprefer(&self, _id: &str, _vers: Option<~str>) {
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fail!("unprefer not yet implemented");
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}
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}
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pub fn main() {
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io::println("WARNING: The Rust package manager is experimental and may be unstable");
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let args = os::args();
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let opts = ~[getopts::optflag("h"), getopts::optflag("help"),
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getopts::optflag("j"), getopts::optflag("json"),
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getopts::optmulti("c"), getopts::optmulti("cfg")];
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let matches = &match getopts::getopts(args, opts) {
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result::Ok(m) => m,
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result::Err(f) => {
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util::error(fmt!("%s", getopts::fail_str(f)));
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return;
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}
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};
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let help = getopts::opt_present(matches, "h") ||
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getopts::opt_present(matches, "help");
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let json = getopts::opt_present(matches, "j") ||
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getopts::opt_present(matches, "json");
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let mut args = copy matches.free;
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args.shift();
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if (args.len() < 1) {
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return usage::general();
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}
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let cmd = args.shift();
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if !util::is_cmd(cmd) {
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return usage::general();
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} else if help {
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return match cmd {
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~"build" => usage::build(),
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~"clean" => usage::clean(),
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~"do" => usage::do_cmd(),
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~"info" => usage::info(),
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~"install" => usage::install(),
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~"prefer" => usage::prefer(),
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~"test" => usage::test(),
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~"uninstall" => usage::uninstall(),
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~"unprefer" => usage::unprefer(),
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_ => usage::general()
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};
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}
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Ctx {
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sysroot_opt: None, // Currently, only tests override this
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json: json,
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dep_cache: @mut HashMap::new()
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}.run(cmd, args);
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}
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/// A crate is a unit of Rust code to be compiled into a binary or library
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pub struct Crate {
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file: Path,
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flags: ~[~str],
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cfgs: ~[~str]
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}
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pub impl Crate {
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fn new(p: &Path) -> Crate {
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Crate {
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file: copy *p,
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flags: ~[],
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cfgs: ~[]
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}
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}
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fn flag(&self, flag: ~str) -> Crate {
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Crate {
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flags: vec::append(copy self.flags, [flag]),
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.. copy *self
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}
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}
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fn flags(&self, flags: ~[~str]) -> Crate {
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Crate {
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flags: vec::append(copy self.flags, flags),
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.. copy *self
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}
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}
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fn cfg(&self, cfg: ~str) -> Crate {
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Crate {
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cfgs: vec::append(copy self.cfgs, [cfg]),
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.. copy *self
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}
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}
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fn cfgs(&self, cfgs: ~[~str]) -> Crate {
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Crate {
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cfgs: vec::append(copy self.cfgs, cfgs),
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.. copy *self
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}
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}
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}
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/**
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* Get the working directory of the package script.
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* Assumes that the package script has been compiled
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* in is the working directory.
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*/
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pub fn work_dir() -> Path {
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os::self_exe_path().get()
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}
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/**
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* Get the source directory of the package (i.e.
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* where the crates are located). Assumes
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* that the cwd is changed to it before
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* running this executable.
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*/
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pub fn src_dir() -> Path {
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os::getcwd()
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}
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// An enumeration of the unpacked source of a package workspace.
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// This contains a list of files found in the source workspace.
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pub struct PkgSrc {
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root: Path, // root of where the package source code lives
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dst_dir: Path, // directory where we will put the compiled output
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id: PkgId,
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libs: ~[Crate],
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mains: ~[Crate],
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tests: ~[Crate],
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benchs: ~[Crate],
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}
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condition! {
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build_err: (~str) -> ();
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}
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impl PkgSrc {
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fn new(src_dir: &Path, dst_dir: &Path,
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id: &PkgId) -> PkgSrc {
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PkgSrc {
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root: copy *src_dir,
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dst_dir: copy *dst_dir,
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id: copy *id,
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libs: ~[],
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mains: ~[],
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tests: ~[],
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benchs: ~[]
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}
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}
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fn check_dir(&self) -> Path {
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use conditions::nonexistent_package::cond;
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debug!("Pushing onto root: %s | %s", self.id.to_str(),
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self.root.to_str());
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let mut dir = self.root.push("src");
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dir = dir.push(self.id.to_str()); // ?? Should this use the version number?
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debug!("Checking dir: %s", dir.to_str());
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if !os::path_exists(&dir) {
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if !self.fetch_git() {
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cond.raise((copy self.id, ~"supplied path for package dir does not \
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exist, and couldn't interpret it as a URL fragment"));
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}
|
|
}
|
|
|
|
if !os::path_is_dir(&dir) {
|
|
cond.raise((copy self.id, ~"supplied path for package dir is a \
|
|
non-directory"));
|
|
}
|
|
|
|
dir
|
|
}
|
|
|
|
/// Try interpreting self's package id as a remote package, and try
|
|
/// fetching it and caching it in a local directory. If that didn't
|
|
/// work, return false.
|
|
/// (right now we only support git)
|
|
fn fetch_git(&self) -> bool {
|
|
|
|
let mut local = self.root.push("src");
|
|
local = local.push(self.id.to_str());
|
|
// Git can't clone into a non-empty directory
|
|
os::remove_dir_recursive(&local);
|
|
|
|
let url = fmt!("https://%s", self.id.remote_path.to_str());
|
|
util::note(fmt!("git clone %s %s", url, local.to_str()));
|
|
|
|
if run::program_output("git", [~"clone", copy url, local.to_str()]).status != 0 {
|
|
util::note(fmt!("fetching %s failed: can't clone repository", url));
|
|
return false;
|
|
}
|
|
true
|
|
}
|
|
|
|
|
|
// If a file named "pkg.rs" in the current directory exists,
|
|
// return the path for it. Otherwise, None
|
|
fn package_script_option(&self, cwd: &Path) -> Option<Path> {
|
|
let maybe_path = cwd.push("pkg.rs");
|
|
if os::path_exists(&maybe_path) {
|
|
Some(maybe_path)
|
|
}
|
|
else {
|
|
None
|
|
}
|
|
}
|
|
|
|
/// True if the given path's stem is self's pkg ID's stem
|
|
/// or if the pkg ID's stem is <rust-foo> and the given path's
|
|
/// stem is foo
|
|
/// Requires that dashes in p have already been normalized to
|
|
/// underscores
|
|
fn stem_matches(&self, p: &Path) -> bool {
|
|
let self_id = self.id.local_path.filestem();
|
|
if self_id == p.filestem() {
|
|
return true;
|
|
}
|
|
else {
|
|
for self_id.each |pth| {
|
|
if pth.starts_with("rust_") // because p is already normalized
|
|
&& match p.filestem() {
|
|
Some(s) => str::eq_slice(s, pth.slice(5, pth.len())),
|
|
None => false
|
|
} { return true; }
|
|
}
|
|
}
|
|
false
|
|
}
|
|
|
|
fn push_crate(cs: &mut ~[Crate], prefix: uint, p: &Path) {
|
|
assert!(p.components.len() > prefix);
|
|
let mut sub = Path("");
|
|
for vec::slice(p.components, prefix,
|
|
p.components.len()).each |c| {
|
|
sub = sub.push(*c);
|
|
}
|
|
debug!("found crate %s", sub.to_str());
|
|
cs.push(Crate::new(&sub));
|
|
}
|
|
|
|
/// Infers crates to build. Called only in the case where there
|
|
/// is no custom build logic
|
|
fn find_crates(&mut self) {
|
|
use PkgSrc::push_crate;
|
|
use conditions::missing_pkg_files::cond;
|
|
|
|
let dir = self.check_dir();
|
|
let prefix = dir.components.len();
|
|
debug!("Matching against %?", self.id.local_path.filestem());
|
|
for os::walk_dir(&dir) |pth| {
|
|
match pth.filename() {
|
|
Some(~"lib.rs") => push_crate(&mut self.libs,
|
|
prefix, pth),
|
|
Some(~"main.rs") => push_crate(&mut self.mains,
|
|
prefix, pth),
|
|
Some(~"test.rs") => push_crate(&mut self.tests,
|
|
prefix, pth),
|
|
Some(~"bench.rs") => push_crate(&mut self.benchs,
|
|
prefix, pth),
|
|
_ => ()
|
|
}
|
|
}
|
|
|
|
if self.libs.is_empty() && self.mains.is_empty()
|
|
&& self.tests.is_empty() && self.benchs.is_empty() {
|
|
|
|
util::note(~"Couldn't infer any crates to build.\n\
|
|
Try naming a crate `main.rs`, `lib.rs`, \
|
|
`test.rs`, or `bench.rs`.");
|
|
cond.raise(copy self.id);
|
|
}
|
|
|
|
debug!("found %u libs, %u mains, %u tests, %u benchs",
|
|
self.libs.len(),
|
|
self.mains.len(),
|
|
self.tests.len(),
|
|
self.benchs.len())
|
|
}
|
|
|
|
fn build_crates(&self,
|
|
maybe_sysroot: Option<@Path>,
|
|
dst_dir: &Path,
|
|
src_dir: &Path,
|
|
crates: &[Crate],
|
|
cfgs: &[~str],
|
|
what: OutputType) {
|
|
for crates.each |&crate| {
|
|
let path = &src_dir.push_rel(&crate.file).normalize();
|
|
util::note(fmt!("build_crates: compiling %s", path.to_str()));
|
|
util::note(fmt!("build_crates: destination dir is %s", dst_dir.to_str()));
|
|
|
|
let result = util::compile_crate(maybe_sysroot, &self.id, path,
|
|
dst_dir,
|
|
crate.flags,
|
|
crate.cfgs + cfgs,
|
|
false, what);
|
|
if !result {
|
|
build_err::cond.raise(fmt!("build failure on %s",
|
|
path.to_str()));
|
|
}
|
|
debug!("Result of compiling %s was %?",
|
|
path.to_str(), result);
|
|
}
|
|
}
|
|
|
|
fn build(&self, dst_dir: &Path, cfgs: ~[~str], maybe_sysroot: Option<@Path>) {
|
|
let dir = self.check_dir();
|
|
debug!("Building libs");
|
|
self.build_crates(maybe_sysroot, dst_dir, &dir, self.libs, cfgs, Lib);
|
|
debug!("Building mains");
|
|
self.build_crates(maybe_sysroot, dst_dir, &dir, self.mains, cfgs, Main);
|
|
debug!("Building tests");
|
|
self.build_crates(maybe_sysroot, dst_dir, &dir, self.tests, cfgs, Test);
|
|
debug!("Building benches");
|
|
self.build_crates(maybe_sysroot, dst_dir, &dir, self.benchs, cfgs, Bench);
|
|
}
|
|
}
|