1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 //! Serialized configuration of a build.
13 //! This module implements parsing `config.toml` configuration files to tweak
14 //! how the build runs.
16 use std::collections::HashMap;
19 use std::io::prelude::*;
20 use std::path::PathBuf;
27 use cache::{INTERNER, Interned};
29 pub use flags::Subcommand;
31 /// Global configuration for the entire build and/or bootstrap.
33 /// This structure is derived from a combination of both `config.toml` and
34 /// `config.mk`. As of the time of this writing it's unlikely that `config.toml`
35 /// is used all that much, so this is primarily filled out by `config.mk` which
36 /// is generated from `./configure`.
38 /// Note that this structure is not decoded directly into, but rather it is
39 /// filled out from the decoded forms of the structs below. For documentation
40 /// each field, see the corresponding fields in
41 /// `config.toml.example`.
44 pub ccache: Option<String>,
48 pub compiler_docs: bool,
50 pub locked_deps: bool,
52 pub target_config: HashMap<Interned<String>, Target>,
53 pub full_bootstrap: bool,
59 pub run_host_only: bool,
61 pub on_fail: Option<String>,
62 pub stage: Option<u32>,
63 pub keep_stage: Option<u32>,
65 pub jobs: Option<u32>,
67 pub incremental: bool,
69 // llvm codegen options
70 pub llvm_enabled: bool,
71 pub llvm_assertions: bool,
72 pub llvm_optimize: bool,
73 pub llvm_release_debuginfo: bool,
74 pub llvm_version_check: bool,
75 pub llvm_static_stdcpp: bool,
76 pub llvm_link_shared: bool,
77 pub llvm_targets: Option<String>,
78 pub llvm_experimental_targets: Option<String>,
79 pub llvm_link_jobs: Option<u32>,
81 // rust codegen options
82 pub rust_optimize: bool,
83 pub rust_codegen_units: u32,
84 pub rust_debug_assertions: bool,
85 pub rust_debuginfo: bool,
86 pub rust_debuginfo_lines: bool,
87 pub rust_debuginfo_only_std: bool,
89 pub rustc_default_linker: Option<String>,
90 pub rustc_default_ar: Option<String>,
91 pub rust_optimize_tests: bool,
92 pub rust_debuginfo_tests: bool,
93 pub rust_dist_src: bool,
95 pub build: Interned<String>,
96 pub hosts: Vec<Interned<String>>,
97 pub targets: Vec<Interned<String>>,
98 pub local_rebuild: bool,
101 pub dist_sign_folder: Option<PathBuf>,
102 pub dist_upload_addr: Option<String>,
103 pub dist_gpg_password_file: Option<PathBuf>,
106 pub debug_jemalloc: bool,
107 pub use_jemalloc: bool,
108 pub backtrace: bool, // support for RUST_BACKTRACE
111 pub low_priority: bool,
113 pub quiet_tests: bool,
114 // Fallback musl-root for all targets
115 pub musl_root: Option<PathBuf>,
116 pub prefix: Option<PathBuf>,
117 pub sysconfdir: Option<PathBuf>,
118 pub docdir: Option<PathBuf>,
119 pub bindir: Option<PathBuf>,
120 pub libdir: Option<PathBuf>,
121 pub libdir_relative: Option<PathBuf>,
122 pub mandir: Option<PathBuf>,
123 pub codegen_tests: bool,
124 pub nodejs: Option<PathBuf>,
125 pub gdb: Option<PathBuf>,
126 pub python: Option<PathBuf>,
127 pub openssl_static: bool,
128 pub configure_args: Vec<String>,
130 // These are either the stage0 downloaded binaries or the locally installed ones.
131 pub initial_cargo: PathBuf,
132 pub initial_rustc: PathBuf,
135 /// Per-target configuration stored in the global configuration structure.
138 /// Some(path to llvm-config) if using an external LLVM.
139 pub llvm_config: Option<PathBuf>,
140 pub jemalloc: Option<PathBuf>,
141 pub cc: Option<PathBuf>,
142 pub cxx: Option<PathBuf>,
143 pub ndk: Option<PathBuf>,
144 pub crt_static: Option<bool>,
145 pub musl_root: Option<PathBuf>,
146 pub qemu_rootfs: Option<PathBuf>,
149 /// Structure of the `config.toml` file that configuration is read from.
151 /// This structure uses `Decodable` to automatically decode a TOML configuration
152 /// file into this format, and then this is traversed and written into the above
153 /// `Config` structure.
154 #[derive(Deserialize, Default)]
155 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
157 build: Option<Build>,
158 install: Option<Install>,
161 target: Option<HashMap<String, TomlTarget>>,
165 /// TOML representation of various global build decisions.
166 #[derive(Deserialize, Default, Clone)]
167 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
169 build: Option<String>,
174 cargo: Option<String>,
175 rustc: Option<String>,
176 low_priority: Option<bool>,
177 compiler_docs: Option<bool>,
179 submodules: Option<bool>,
181 locked_deps: Option<bool>,
182 vendor: Option<bool>,
183 nodejs: Option<String>,
184 python: Option<String>,
185 full_bootstrap: Option<bool>,
186 extended: Option<bool>,
187 verbose: Option<usize>,
188 sanitizers: Option<bool>,
189 profiler: Option<bool>,
190 openssl_static: Option<bool>,
191 configure_args: Option<Vec<String>>,
192 local_rebuild: Option<bool>,
195 /// TOML representation of various global install decisions.
196 #[derive(Deserialize, Default, Clone)]
197 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
199 prefix: Option<String>,
200 sysconfdir: Option<String>,
201 docdir: Option<String>,
202 bindir: Option<String>,
203 libdir: Option<String>,
204 mandir: Option<String>,
207 /// TOML representation of how the LLVM build is configured.
208 #[derive(Deserialize, Default)]
209 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
211 enabled: Option<bool>,
212 ccache: Option<StringOrBool>,
214 assertions: Option<bool>,
215 optimize: Option<bool>,
216 release_debuginfo: Option<bool>,
217 version_check: Option<bool>,
218 static_libstdcpp: Option<bool>,
219 targets: Option<String>,
220 experimental_targets: Option<String>,
221 link_jobs: Option<u32>,
222 link_shared: Option<bool>,
225 #[derive(Deserialize, Default, Clone)]
226 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
228 sign_folder: Option<String>,
229 gpg_password_file: Option<String>,
230 upload_addr: Option<String>,
231 src_tarball: Option<bool>,
234 #[derive(Deserialize)]
241 impl Default for StringOrBool {
242 fn default() -> StringOrBool {
243 StringOrBool::Bool(false)
247 /// TOML representation of how the Rust build is configured.
248 #[derive(Deserialize, Default)]
249 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
251 optimize: Option<bool>,
252 codegen_units: Option<u32>,
253 debug_assertions: Option<bool>,
254 debuginfo: Option<bool>,
255 debuginfo_lines: Option<bool>,
256 debuginfo_only_std: Option<bool>,
257 debug_jemalloc: Option<bool>,
258 use_jemalloc: Option<bool>,
259 backtrace: Option<bool>,
260 default_linker: Option<String>,
261 default_ar: Option<String>,
262 channel: Option<String>,
263 musl_root: Option<String>,
265 optimize_tests: Option<bool>,
266 debuginfo_tests: Option<bool>,
267 codegen_tests: Option<bool>,
268 ignore_git: Option<bool>,
270 dist_src: Option<bool>,
271 quiet_tests: Option<bool>,
274 /// TOML representation of how each build target is configured.
275 #[derive(Deserialize, Default)]
276 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
278 llvm_config: Option<String>,
279 jemalloc: Option<String>,
282 android_ndk: Option<String>,
283 crt_static: Option<bool>,
284 musl_root: Option<String>,
285 qemu_rootfs: Option<String>,
289 pub fn parse(args: &[String]) -> Config {
290 let flags = Flags::parse(&args);
291 let file = flags.config.clone();
292 let mut config = Config::default();
293 config.llvm_enabled = true;
294 config.llvm_optimize = true;
295 config.use_jemalloc = true;
296 config.backtrace = true;
297 config.rust_optimize = true;
298 config.rust_optimize_tests = true;
299 config.submodules = true;
301 config.rust_rpath = true;
302 config.rust_codegen_units = 1;
303 config.channel = "dev".to_string();
304 config.codegen_tests = true;
305 config.ignore_git = false;
306 config.rust_dist_src = true;
308 config.on_fail = flags.on_fail;
309 config.stage = flags.stage;
310 config.src = flags.src;
311 config.jobs = flags.jobs;
312 config.cmd = flags.cmd;
313 config.incremental = flags.incremental;
314 config.keep_stage = flags.keep_stage;
316 // If --target was specified but --host wasn't specified, don't run any host-only tests.
317 config.run_host_only = flags.host.is_empty() && !flags.target.is_empty();
319 let toml = file.map(|file| {
320 let mut f = t!(File::open(&file));
321 let mut contents = String::new();
322 t!(f.read_to_string(&mut contents));
323 match toml::from_str(&contents) {
326 println!("failed to parse TOML configuration '{}': {}",
327 file.display(), err);
331 }).unwrap_or_else(|| TomlConfig::default());
333 let build = toml.build.clone().unwrap_or(Build::default());
334 set(&mut config.build, build.build.clone().map(|x| INTERNER.intern_string(x)));
335 set(&mut config.build, flags.build);
336 if config.build.is_empty() {
337 // set by bootstrap.py
338 config.build = INTERNER.intern_str(&env::var("BUILD").unwrap());
340 config.hosts.push(config.build.clone());
341 for host in build.host.iter() {
342 let host = INTERNER.intern_str(host);
343 if !config.hosts.contains(&host) {
344 config.hosts.push(host);
347 for target in config.hosts.iter().cloned()
348 .chain(build.target.iter().map(|s| INTERNER.intern_str(s)))
350 if !config.targets.contains(&target) {
351 config.targets.push(target);
354 config.hosts = if !flags.host.is_empty() {
359 config.targets = if !flags.target.is_empty() {
366 config.nodejs = build.nodejs.map(PathBuf::from);
367 config.gdb = build.gdb.map(PathBuf::from);
368 config.python = build.python.map(PathBuf::from);
369 set(&mut config.low_priority, build.low_priority);
370 set(&mut config.compiler_docs, build.compiler_docs);
371 set(&mut config.docs, build.docs);
372 set(&mut config.submodules, build.submodules);
373 set(&mut config.locked_deps, build.locked_deps);
374 set(&mut config.vendor, build.vendor);
375 set(&mut config.full_bootstrap, build.full_bootstrap);
376 set(&mut config.extended, build.extended);
377 set(&mut config.verbose, build.verbose);
378 set(&mut config.sanitizers, build.sanitizers);
379 set(&mut config.profiler, build.profiler);
380 set(&mut config.openssl_static, build.openssl_static);
381 set(&mut config.configure_args, build.configure_args);
382 set(&mut config.local_rebuild, build.local_rebuild);
383 config.verbose = cmp::max(config.verbose, flags.verbose);
385 if let Some(ref install) = toml.install {
386 config.prefix = install.prefix.clone().map(PathBuf::from);
387 config.sysconfdir = install.sysconfdir.clone().map(PathBuf::from);
388 config.docdir = install.docdir.clone().map(PathBuf::from);
389 config.bindir = install.bindir.clone().map(PathBuf::from);
390 config.libdir = install.libdir.clone().map(PathBuf::from);
391 config.mandir = install.mandir.clone().map(PathBuf::from);
394 // Store off these values as options because if they're not provided
395 // we'll infer default values for them later
396 let mut llvm_assertions = None;
397 let mut debuginfo_lines = None;
398 let mut debuginfo_only_std = None;
399 let mut debug = None;
400 let mut debug_jemalloc = None;
401 let mut debuginfo = None;
402 let mut debug_assertions = None;
403 let mut optimize = None;
404 let mut ignore_git = None;
406 if let Some(ref llvm) = toml.llvm {
408 Some(StringOrBool::String(ref s)) => {
409 config.ccache = Some(s.to_string())
411 Some(StringOrBool::Bool(true)) => {
412 config.ccache = Some("ccache".to_string());
414 Some(StringOrBool::Bool(false)) | None => {}
416 set(&mut config.ninja, llvm.ninja);
417 set(&mut config.llvm_enabled, llvm.enabled);
418 llvm_assertions = llvm.assertions;
419 set(&mut config.llvm_optimize, llvm.optimize);
420 set(&mut config.llvm_release_debuginfo, llvm.release_debuginfo);
421 set(&mut config.llvm_version_check, llvm.version_check);
422 set(&mut config.llvm_static_stdcpp, llvm.static_libstdcpp);
423 set(&mut config.llvm_link_shared, llvm.link_shared);
424 config.llvm_targets = llvm.targets.clone();
425 config.llvm_experimental_targets = llvm.experimental_targets.clone();
426 config.llvm_link_jobs = llvm.link_jobs;
429 if let Some(ref rust) = toml.rust {
431 debug_assertions = rust.debug_assertions;
432 debuginfo = rust.debuginfo;
433 debuginfo_lines = rust.debuginfo_lines;
434 debuginfo_only_std = rust.debuginfo_only_std;
435 optimize = rust.optimize;
436 ignore_git = rust.ignore_git;
437 debug_jemalloc = rust.debug_jemalloc;
438 set(&mut config.rust_optimize_tests, rust.optimize_tests);
439 set(&mut config.rust_debuginfo_tests, rust.debuginfo_tests);
440 set(&mut config.codegen_tests, rust.codegen_tests);
441 set(&mut config.rust_rpath, rust.rpath);
442 set(&mut config.use_jemalloc, rust.use_jemalloc);
443 set(&mut config.backtrace, rust.backtrace);
444 set(&mut config.channel, rust.channel.clone());
445 set(&mut config.rust_dist_src, rust.dist_src);
446 set(&mut config.quiet_tests, rust.quiet_tests);
447 config.rustc_default_linker = rust.default_linker.clone();
448 config.rustc_default_ar = rust.default_ar.clone();
449 config.musl_root = rust.musl_root.clone().map(PathBuf::from);
451 match rust.codegen_units {
452 Some(0) => config.rust_codegen_units = num_cpus::get() as u32,
453 Some(n) => config.rust_codegen_units = n,
458 if let Some(ref t) = toml.target {
459 for (triple, cfg) in t {
460 let mut target = Target::default();
462 if let Some(ref s) = cfg.llvm_config {
463 target.llvm_config = Some(env::current_dir().unwrap().join(s));
465 if let Some(ref s) = cfg.jemalloc {
466 target.jemalloc = Some(env::current_dir().unwrap().join(s));
468 if let Some(ref s) = cfg.android_ndk {
469 target.ndk = Some(env::current_dir().unwrap().join(s));
471 target.cxx = cfg.cxx.clone().map(PathBuf::from);
472 target.cc = cfg.cc.clone().map(PathBuf::from);
473 target.crt_static = cfg.crt_static.clone();
474 target.musl_root = cfg.musl_root.clone().map(PathBuf::from);
475 target.qemu_rootfs = cfg.qemu_rootfs.clone().map(PathBuf::from);
477 config.target_config.insert(INTERNER.intern_string(triple.clone()), target);
481 if let Some(ref t) = toml.dist {
482 config.dist_sign_folder = t.sign_folder.clone().map(PathBuf::from);
483 config.dist_gpg_password_file = t.gpg_password_file.clone().map(PathBuf::from);
484 config.dist_upload_addr = t.upload_addr.clone();
485 set(&mut config.rust_dist_src, t.src_tarball);
488 let cwd = t!(env::current_dir());
489 let out = cwd.join("build");
491 let stage0_root = out.join(&config.build).join("stage0/bin");
492 config.initial_rustc = match build.rustc {
493 Some(s) => PathBuf::from(s),
494 None => stage0_root.join(exe("rustc", &config.build)),
496 config.initial_cargo = match build.cargo {
497 Some(s) => PathBuf::from(s),
498 None => stage0_root.join(exe("cargo", &config.build)),
501 // Now that we've reached the end of our configuration, infer the
502 // default values for all options that we haven't otherwise stored yet.
504 let default = config.channel == "nightly";
505 config.llvm_assertions = llvm_assertions.unwrap_or(default);
507 let default = match &config.channel[..] {
508 "stable" | "beta" | "nightly" => true,
511 config.rust_debuginfo_lines = debuginfo_lines.unwrap_or(default);
512 config.rust_debuginfo_only_std = debuginfo_only_std.unwrap_or(default);
514 let default = debug == Some(true);
515 config.debug_jemalloc = debug_jemalloc.unwrap_or(default);
516 config.rust_debuginfo = debuginfo.unwrap_or(default);
517 config.rust_debug_assertions = debug_assertions.unwrap_or(default);
518 config.rust_optimize = optimize.unwrap_or(!default);
520 let default = config.channel == "dev";
521 config.ignore_git = ignore_git.unwrap_or(default);
526 pub fn verbose(&self) -> bool {
530 pub fn very_verbose(&self) -> bool {
535 fn set<T>(field: &mut T, val: Option<T>) {
536 if let Some(v) = val {