1 //! Serialized configuration of a build.
3 //! This module implements parsing `config.toml` configuration files to tweak
4 //! how the build runs.
7 use std::collections::{HashMap, HashSet};
9 use std::ffi::OsString;
12 use std::path::{Path, PathBuf};
15 use crate::cache::{Interned, INTERNER};
16 use crate::flags::Flags;
17 pub use crate::flags::Subcommand;
19 use serde::Deserialize;
21 /// Global configuration for the entire build and/or bootstrap.
23 /// This structure is derived from a combination of both `config.toml` and
24 /// `config.mk`. As of the time of this writing it's unlikely that `config.toml`
25 /// is used all that much, so this is primarily filled out by `config.mk` which
26 /// is generated from `./configure`.
28 /// Note that this structure is not decoded directly into, but rather it is
29 /// filled out from the decoded forms of the structs below. For documentation
30 /// each field, see the corresponding fields in
31 /// `config.toml.example`.
34 pub ccache: Option<String>,
38 pub fast_submodules: bool,
39 pub compiler_docs: bool,
41 pub locked_deps: bool,
43 pub target_config: HashMap<TargetSelection, Target>,
44 pub full_bootstrap: bool,
46 pub tools: Option<HashSet<String>>,
50 pub exclude: Vec<PathBuf>,
51 pub rustc_error_format: Option<String>,
52 pub json_output: bool,
53 pub test_compare_mode: bool,
54 pub llvm_libunwind: bool,
56 pub skip_only_host_steps: bool,
58 pub on_fail: Option<String>,
59 pub stage: Option<u32>,
60 pub keep_stage: Vec<u32>,
62 pub jobs: Option<u32>,
64 pub incremental: bool,
67 pub deny_warnings: bool,
68 pub backtrace_on_ice: bool,
70 // llvm codegen options
71 pub llvm_skip_rebuild: bool,
72 pub llvm_assertions: bool,
73 pub llvm_optimize: bool,
74 pub llvm_thin_lto: bool,
75 pub llvm_release_debuginfo: bool,
76 pub llvm_version_check: bool,
77 pub llvm_static_stdcpp: bool,
78 pub llvm_link_shared: bool,
79 pub llvm_clang_cl: Option<String>,
80 pub llvm_targets: Option<String>,
81 pub llvm_experimental_targets: Option<String>,
82 pub llvm_link_jobs: Option<u32>,
83 pub llvm_version_suffix: Option<String>,
84 pub llvm_use_linker: Option<String>,
85 pub llvm_allow_old_toolchain: Option<bool>,
88 pub lld_enabled: bool,
89 pub llvm_tools_enabled: bool,
91 pub llvm_cflags: Option<String>,
92 pub llvm_cxxflags: Option<String>,
93 pub llvm_ldflags: Option<String>,
94 pub llvm_use_libcxx: bool,
96 // rust codegen options
97 pub rust_optimize: bool,
98 pub rust_codegen_units: Option<u32>,
99 pub rust_codegen_units_std: Option<u32>,
100 pub rust_debug_assertions: bool,
101 pub rust_debug_assertions_std: bool,
102 pub rust_debuginfo_level_rustc: u32,
103 pub rust_debuginfo_level_std: u32,
104 pub rust_debuginfo_level_tools: u32,
105 pub rust_debuginfo_level_tests: u32,
106 pub rust_rpath: bool,
107 pub rustc_parallel: bool,
108 pub rustc_default_linker: Option<String>,
109 pub rust_optimize_tests: bool,
110 pub rust_dist_src: bool,
111 pub rust_codegen_backends: Vec<Interned<String>>,
112 pub rust_verify_llvm_ir: bool,
113 pub rust_thin_lto_import_instr_limit: Option<u32>,
114 pub rust_remap_debuginfo: bool,
116 pub build: TargetSelection,
117 pub hosts: Vec<TargetSelection>,
118 pub targets: Vec<TargetSelection>,
119 pub local_rebuild: bool,
121 pub control_flow_guard: bool,
124 pub dist_sign_folder: Option<PathBuf>,
125 pub dist_upload_addr: Option<String>,
126 pub dist_gpg_password_file: Option<PathBuf>,
129 pub backtrace: bool, // support for RUST_BACKTRACE
132 pub low_priority: bool,
134 pub verbose_tests: bool,
135 pub save_toolstates: Option<PathBuf>,
136 pub print_step_timings: bool,
137 pub missing_tools: bool,
139 // Fallback musl-root for all targets
140 pub musl_root: Option<PathBuf>,
141 pub prefix: Option<PathBuf>,
142 pub sysconfdir: Option<PathBuf>,
143 pub datadir: Option<PathBuf>,
144 pub docdir: Option<PathBuf>,
146 pub libdir: Option<PathBuf>,
147 pub mandir: Option<PathBuf>,
148 pub codegen_tests: bool,
149 pub nodejs: Option<PathBuf>,
150 pub gdb: Option<PathBuf>,
151 pub python: Option<PathBuf>,
152 pub cargo_native_static: bool,
153 pub configure_args: Vec<String>,
155 // These are either the stage0 downloaded binaries or the locally installed ones.
156 pub initial_cargo: PathBuf,
157 pub initial_rustc: PathBuf,
158 pub initial_rustfmt: Option<PathBuf>,
162 #[derive(Debug, Copy, Clone, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
163 pub struct TargetSelection {
164 pub triple: Interned<String>,
165 file: Option<Interned<String>>,
168 impl TargetSelection {
169 pub fn from_user(selection: &str) -> Self {
170 let path = Path::new(selection);
172 let (triple, file) = if path.exists() {
175 .expect("Target specification file has no file stem")
177 .expect("Target specification file stem is not UTF-8");
179 (triple, Some(selection))
184 let triple = INTERNER.intern_str(triple);
185 let file = file.map(|f| INTERNER.intern_str(f));
187 Self { triple, file }
190 pub fn rustc_target_arg(&self) -> &str {
191 self.file.as_ref().unwrap_or(&self.triple)
194 pub fn contains(&self, needle: &str) -> bool {
195 self.triple.contains(needle)
198 pub fn starts_with(&self, needle: &str) -> bool {
199 self.triple.starts_with(needle)
202 pub fn ends_with(&self, needle: &str) -> bool {
203 self.triple.ends_with(needle)
207 impl fmt::Display for TargetSelection {
208 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
209 write!(f, "{}", self.triple)?;
210 if let Some(file) = self.file {
211 write!(f, "({})", file)?;
217 impl PartialEq<&str> for TargetSelection {
218 fn eq(&self, other: &&str) -> bool {
219 self.triple == *other
223 /// Per-target configuration stored in the global configuration structure.
226 /// Some(path to llvm-config) if using an external LLVM.
227 pub llvm_config: Option<PathBuf>,
228 /// Some(path to FileCheck) if one was specified.
229 pub llvm_filecheck: Option<PathBuf>,
230 pub cc: Option<PathBuf>,
231 pub cxx: Option<PathBuf>,
232 pub ar: Option<PathBuf>,
233 pub ranlib: Option<PathBuf>,
234 pub linker: Option<PathBuf>,
235 pub ndk: Option<PathBuf>,
236 pub crt_static: Option<bool>,
237 pub musl_root: Option<PathBuf>,
238 pub musl_libdir: Option<PathBuf>,
239 pub wasi_root: Option<PathBuf>,
240 pub qemu_rootfs: Option<PathBuf>,
245 pub fn from_triple(triple: &str) -> Self {
246 let mut target: Self = Default::default();
247 if triple.contains("-none") || triple.contains("nvptx") {
248 target.no_std = true;
253 /// Structure of the `config.toml` file that configuration is read from.
255 /// This structure uses `Decodable` to automatically decode a TOML configuration
256 /// file into this format, and then this is traversed and written into the above
257 /// `Config` structure.
258 #[derive(Deserialize, Default)]
259 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
261 build: Option<Build>,
262 install: Option<Install>,
265 target: Option<HashMap<String, TomlTarget>>,
269 /// TOML representation of various global build decisions.
270 #[derive(Deserialize, Default, Clone)]
271 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
273 build: Option<String>,
278 // This is ignored, the rust code always gets the build directory from the `BUILD_DIR` env variable
279 build_dir: Option<String>,
280 cargo: Option<String>,
281 rustc: Option<String>,
282 rustfmt: Option<String>, /* allow bootstrap.py to use rustfmt key */
284 compiler_docs: Option<bool>,
285 submodules: Option<bool>,
286 fast_submodules: Option<bool>,
288 nodejs: Option<String>,
289 python: Option<String>,
290 locked_deps: Option<bool>,
291 vendor: Option<bool>,
292 full_bootstrap: Option<bool>,
293 extended: Option<bool>,
294 tools: Option<HashSet<String>>,
295 verbose: Option<usize>,
296 sanitizers: Option<bool>,
297 profiler: Option<bool>,
298 cargo_native_static: Option<bool>,
299 low_priority: Option<bool>,
300 configure_args: Option<Vec<String>>,
301 local_rebuild: Option<bool>,
302 print_step_timings: Option<bool>,
305 /// TOML representation of various global install decisions.
306 #[derive(Deserialize, Default, Clone)]
307 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
309 prefix: Option<String>,
310 sysconfdir: Option<String>,
311 docdir: Option<String>,
312 bindir: Option<String>,
313 libdir: Option<String>,
314 mandir: Option<String>,
315 datadir: Option<String>,
317 // standard paths, currently unused
318 infodir: Option<String>,
319 localstatedir: Option<String>,
322 /// TOML representation of how the LLVM build is configured.
323 #[derive(Deserialize, Default)]
324 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
326 skip_rebuild: Option<bool>,
327 optimize: Option<bool>,
328 thin_lto: Option<bool>,
329 release_debuginfo: Option<bool>,
330 assertions: Option<bool>,
331 ccache: Option<StringOrBool>,
332 version_check: Option<bool>,
333 static_libstdcpp: Option<bool>,
335 targets: Option<String>,
336 experimental_targets: Option<String>,
337 link_jobs: Option<u32>,
338 link_shared: Option<bool>,
339 version_suffix: Option<String>,
340 clang_cl: Option<String>,
341 cflags: Option<String>,
342 cxxflags: Option<String>,
343 ldflags: Option<String>,
344 use_libcxx: Option<bool>,
345 use_linker: Option<String>,
346 allow_old_toolchain: Option<bool>,
349 #[derive(Deserialize, Default, Clone)]
350 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
352 sign_folder: Option<String>,
353 gpg_password_file: Option<String>,
354 upload_addr: Option<String>,
355 src_tarball: Option<bool>,
356 missing_tools: Option<bool>,
359 #[derive(Deserialize)]
366 impl Default for StringOrBool {
367 fn default() -> StringOrBool {
368 StringOrBool::Bool(false)
372 /// TOML representation of how the Rust build is configured.
373 #[derive(Deserialize, Default)]
374 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
376 optimize: Option<bool>,
378 codegen_units: Option<u32>,
379 codegen_units_std: Option<u32>,
380 debug_assertions: Option<bool>,
381 debug_assertions_std: Option<bool>,
382 debuginfo_level: Option<u32>,
383 debuginfo_level_rustc: Option<u32>,
384 debuginfo_level_std: Option<u32>,
385 debuginfo_level_tools: Option<u32>,
386 debuginfo_level_tests: Option<u32>,
387 backtrace: Option<bool>,
388 incremental: Option<bool>,
389 parallel_compiler: Option<bool>,
390 default_linker: Option<String>,
391 channel: Option<String>,
392 musl_root: Option<String>,
394 verbose_tests: Option<bool>,
395 optimize_tests: Option<bool>,
396 codegen_tests: Option<bool>,
397 ignore_git: Option<bool>,
398 dist_src: Option<bool>,
399 save_toolstates: Option<String>,
400 codegen_backends: Option<Vec<String>>,
402 use_lld: Option<bool>,
403 llvm_tools: Option<bool>,
404 deny_warnings: Option<bool>,
405 backtrace_on_ice: Option<bool>,
406 verify_llvm_ir: Option<bool>,
407 thin_lto_import_instr_limit: Option<u32>,
408 remap_debuginfo: Option<bool>,
409 jemalloc: Option<bool>,
410 test_compare_mode: Option<bool>,
411 llvm_libunwind: Option<bool>,
412 control_flow_guard: Option<bool>,
415 /// TOML representation of how each build target is configured.
416 #[derive(Deserialize, Default)]
417 #[serde(deny_unknown_fields, rename_all = "kebab-case")]
422 ranlib: Option<String>,
423 linker: Option<String>,
424 llvm_config: Option<String>,
425 llvm_filecheck: Option<String>,
426 android_ndk: Option<String>,
427 crt_static: Option<bool>,
428 musl_root: Option<String>,
429 musl_libdir: Option<String>,
430 wasi_root: Option<String>,
431 qemu_rootfs: Option<String>,
432 no_std: Option<bool>,
436 fn path_from_python(var_key: &str) -> PathBuf {
437 match env::var_os(var_key) {
438 Some(var_val) => Self::normalize_python_path(var_val),
439 _ => panic!("expected '{}' to be set", var_key),
443 /// Normalizes paths from Python slightly. We don't trust paths from Python (#49785).
444 fn normalize_python_path(path: OsString) -> PathBuf {
445 Path::new(&path).components().collect()
448 pub fn default_opts() -> Config {
449 let mut config = Config::default();
450 config.llvm_optimize = true;
451 config.llvm_version_check = true;
452 config.backtrace = true;
453 config.rust_optimize = true;
454 config.rust_optimize_tests = true;
455 config.submodules = true;
456 config.fast_submodules = true;
458 config.rust_rpath = true;
459 config.channel = "dev".to_string();
460 config.codegen_tests = true;
461 config.ignore_git = false;
462 config.rust_dist_src = true;
463 config.rust_codegen_backends = vec![INTERNER.intern_str("llvm")];
464 config.deny_warnings = true;
465 config.missing_tools = false;
467 // set by bootstrap.py
468 config.build = TargetSelection::from_user(&env::var("BUILD").expect("'BUILD' to be set"));
469 config.src = Config::path_from_python("SRC");
470 config.out = Config::path_from_python("BUILD_DIR");
472 config.initial_rustc = Config::path_from_python("RUSTC");
473 config.initial_cargo = Config::path_from_python("CARGO");
474 config.initial_rustfmt = env::var_os("RUSTFMT").map(Config::normalize_python_path);
479 pub fn parse(args: &[String]) -> Config {
480 let flags = Flags::parse(&args);
481 let file = flags.config.clone();
482 let mut config = Config::default_opts();
483 config.exclude = flags.exclude;
484 config.rustc_error_format = flags.rustc_error_format;
485 config.json_output = flags.json_output;
486 config.on_fail = flags.on_fail;
487 config.stage = flags.stage;
488 config.jobs = flags.jobs.map(threads_from_config);
489 config.cmd = flags.cmd;
490 config.incremental = flags.incremental;
491 config.dry_run = flags.dry_run;
492 config.keep_stage = flags.keep_stage;
493 config.bindir = "bin".into(); // default
494 if let Some(value) = flags.deny_warnings {
495 config.deny_warnings = value;
499 let dir = config.out.join("tmp-dry-run");
500 t!(fs::create_dir_all(&dir));
504 // If --target was specified but --host wasn't specified, don't run any host-only tests.
505 let has_hosts = !flags.host.is_empty();
506 let has_targets = !flags.target.is_empty();
507 config.skip_only_host_steps = !has_hosts && has_targets;
511 let contents = t!(fs::read_to_string(&file));
512 match toml::from_str(&contents) {
516 "failed to parse TOML configuration '{}': {}",
524 .unwrap_or_else(TomlConfig::default);
526 let build = toml.build.clone().unwrap_or_default();
527 // set by bootstrap.py
528 config.hosts.push(config.build.clone());
529 for host in build.host.iter().map(|h| TargetSelection::from_user(h)) {
530 if !config.hosts.contains(&host) {
531 config.hosts.push(host);
538 .chain(build.target.iter().map(|h| TargetSelection::from_user(h)))
540 if !config.targets.contains(&target) {
541 config.targets.push(target);
544 config.hosts = if !flags.host.is_empty() { flags.host } else { config.hosts };
545 config.targets = if !flags.target.is_empty() { flags.target } else { config.targets };
547 config.nodejs = build.nodejs.map(PathBuf::from);
548 config.gdb = build.gdb.map(PathBuf::from);
549 config.python = build.python.map(PathBuf::from);
550 set(&mut config.low_priority, build.low_priority);
551 set(&mut config.compiler_docs, build.compiler_docs);
552 set(&mut config.docs, build.docs);
553 set(&mut config.submodules, build.submodules);
554 set(&mut config.fast_submodules, build.fast_submodules);
555 set(&mut config.locked_deps, build.locked_deps);
556 set(&mut config.vendor, build.vendor);
557 set(&mut config.full_bootstrap, build.full_bootstrap);
558 set(&mut config.extended, build.extended);
559 config.tools = build.tools;
560 set(&mut config.verbose, build.verbose);
561 set(&mut config.sanitizers, build.sanitizers);
562 set(&mut config.profiler, build.profiler);
563 set(&mut config.cargo_native_static, build.cargo_native_static);
564 set(&mut config.configure_args, build.configure_args);
565 set(&mut config.local_rebuild, build.local_rebuild);
566 set(&mut config.print_step_timings, build.print_step_timings);
567 config.verbose = cmp::max(config.verbose, flags.verbose);
569 if let Some(ref install) = toml.install {
570 config.prefix = install.prefix.clone().map(PathBuf::from);
571 config.sysconfdir = install.sysconfdir.clone().map(PathBuf::from);
572 config.datadir = install.datadir.clone().map(PathBuf::from);
573 config.docdir = install.docdir.clone().map(PathBuf::from);
574 set(&mut config.bindir, install.bindir.clone().map(PathBuf::from));
575 config.libdir = install.libdir.clone().map(PathBuf::from);
576 config.mandir = install.mandir.clone().map(PathBuf::from);
579 // We want the llvm-skip-rebuild flag to take precedence over the
580 // skip-rebuild config.toml option so we store it separately
581 // so that we can infer the right value
582 let mut llvm_skip_rebuild = flags.llvm_skip_rebuild;
584 // Store off these values as options because if they're not provided
585 // we'll infer default values for them later
586 let mut llvm_assertions = None;
587 let mut debug = None;
588 let mut debug_assertions = None;
589 let mut debug_assertions_std = None;
590 let mut debuginfo_level = None;
591 let mut debuginfo_level_rustc = None;
592 let mut debuginfo_level_std = None;
593 let mut debuginfo_level_tools = None;
594 let mut debuginfo_level_tests = None;
595 let mut optimize = None;
596 let mut ignore_git = None;
598 if let Some(ref llvm) = toml.llvm {
600 Some(StringOrBool::String(ref s)) => config.ccache = Some(s.to_string()),
601 Some(StringOrBool::Bool(true)) => {
602 config.ccache = Some("ccache".to_string());
604 Some(StringOrBool::Bool(false)) | None => {}
606 set(&mut config.ninja, llvm.ninja);
607 llvm_assertions = llvm.assertions;
608 llvm_skip_rebuild = llvm_skip_rebuild.or(llvm.skip_rebuild);
609 set(&mut config.llvm_optimize, llvm.optimize);
610 set(&mut config.llvm_thin_lto, llvm.thin_lto);
611 set(&mut config.llvm_release_debuginfo, llvm.release_debuginfo);
612 set(&mut config.llvm_version_check, llvm.version_check);
613 set(&mut config.llvm_static_stdcpp, llvm.static_libstdcpp);
614 set(&mut config.llvm_link_shared, llvm.link_shared);
615 config.llvm_targets = llvm.targets.clone();
616 config.llvm_experimental_targets = llvm.experimental_targets.clone();
617 config.llvm_link_jobs = llvm.link_jobs;
618 config.llvm_version_suffix = llvm.version_suffix.clone();
619 config.llvm_clang_cl = llvm.clang_cl.clone();
621 config.llvm_cflags = llvm.cflags.clone();
622 config.llvm_cxxflags = llvm.cxxflags.clone();
623 config.llvm_ldflags = llvm.ldflags.clone();
624 set(&mut config.llvm_use_libcxx, llvm.use_libcxx);
625 config.llvm_use_linker = llvm.use_linker.clone();
626 config.llvm_allow_old_toolchain = llvm.allow_old_toolchain;
629 if let Some(ref rust) = toml.rust {
631 debug_assertions = rust.debug_assertions;
632 debug_assertions_std = rust.debug_assertions_std;
633 debuginfo_level = rust.debuginfo_level;
634 debuginfo_level_rustc = rust.debuginfo_level_rustc;
635 debuginfo_level_std = rust.debuginfo_level_std;
636 debuginfo_level_tools = rust.debuginfo_level_tools;
637 debuginfo_level_tests = rust.debuginfo_level_tests;
638 optimize = rust.optimize;
639 ignore_git = rust.ignore_git;
640 set(&mut config.rust_optimize_tests, rust.optimize_tests);
641 set(&mut config.codegen_tests, rust.codegen_tests);
642 set(&mut config.rust_rpath, rust.rpath);
643 set(&mut config.jemalloc, rust.jemalloc);
644 set(&mut config.test_compare_mode, rust.test_compare_mode);
645 set(&mut config.llvm_libunwind, rust.llvm_libunwind);
646 set(&mut config.backtrace, rust.backtrace);
647 set(&mut config.channel, rust.channel.clone());
648 set(&mut config.rust_dist_src, rust.dist_src);
649 set(&mut config.verbose_tests, rust.verbose_tests);
650 // in the case "false" is set explicitly, do not overwrite the command line args
651 if let Some(true) = rust.incremental {
652 config.incremental = true;
654 set(&mut config.use_lld, rust.use_lld);
655 set(&mut config.lld_enabled, rust.lld);
656 set(&mut config.llvm_tools_enabled, rust.llvm_tools);
657 config.rustc_parallel = rust.parallel_compiler.unwrap_or(false);
658 config.rustc_default_linker = rust.default_linker.clone();
659 config.musl_root = rust.musl_root.clone().map(PathBuf::from);
660 config.save_toolstates = rust.save_toolstates.clone().map(PathBuf::from);
661 set(&mut config.deny_warnings, flags.deny_warnings.or(rust.deny_warnings));
662 set(&mut config.backtrace_on_ice, rust.backtrace_on_ice);
663 set(&mut config.rust_verify_llvm_ir, rust.verify_llvm_ir);
664 config.rust_thin_lto_import_instr_limit = rust.thin_lto_import_instr_limit;
665 set(&mut config.rust_remap_debuginfo, rust.remap_debuginfo);
666 set(&mut config.control_flow_guard, rust.control_flow_guard);
668 if let Some(ref backends) = rust.codegen_backends {
669 config.rust_codegen_backends =
670 backends.iter().map(|s| INTERNER.intern_str(s)).collect();
673 config.rust_codegen_units = rust.codegen_units.map(threads_from_config);
674 config.rust_codegen_units_std = rust.codegen_units_std.map(threads_from_config);
677 if let Some(ref t) = toml.target {
678 for (triple, cfg) in t {
679 let mut target = Target::from_triple(triple);
681 if let Some(ref s) = cfg.llvm_config {
682 target.llvm_config = Some(config.src.join(s));
684 if let Some(ref s) = cfg.llvm_filecheck {
685 target.llvm_filecheck = Some(config.src.join(s));
687 if let Some(ref s) = cfg.android_ndk {
688 target.ndk = Some(config.src.join(s));
690 if let Some(s) = cfg.no_std {
693 target.cc = cfg.cc.clone().map(PathBuf::from);
694 target.cxx = cfg.cxx.clone().map(PathBuf::from);
695 target.ar = cfg.ar.clone().map(PathBuf::from);
696 target.ranlib = cfg.ranlib.clone().map(PathBuf::from);
697 target.linker = cfg.linker.clone().map(PathBuf::from);
698 target.crt_static = cfg.crt_static;
699 target.musl_root = cfg.musl_root.clone().map(PathBuf::from);
700 target.musl_libdir = cfg.musl_libdir.clone().map(PathBuf::from);
701 target.wasi_root = cfg.wasi_root.clone().map(PathBuf::from);
702 target.qemu_rootfs = cfg.qemu_rootfs.clone().map(PathBuf::from);
704 config.target_config.insert(TargetSelection::from_user(triple), target);
708 if let Some(ref t) = toml.dist {
709 config.dist_sign_folder = t.sign_folder.clone().map(PathBuf::from);
710 config.dist_gpg_password_file = t.gpg_password_file.clone().map(PathBuf::from);
711 config.dist_upload_addr = t.upload_addr.clone();
712 set(&mut config.rust_dist_src, t.src_tarball);
713 set(&mut config.missing_tools, t.missing_tools);
716 // Now that we've reached the end of our configuration, infer the
717 // default values for all options that we haven't otherwise stored yet.
719 set(&mut config.initial_rustc, build.rustc.map(PathBuf::from));
720 set(&mut config.initial_cargo, build.cargo.map(PathBuf::from));
722 config.llvm_skip_rebuild = llvm_skip_rebuild.unwrap_or(false);
725 config.llvm_assertions = llvm_assertions.unwrap_or(default);
728 config.rust_optimize = optimize.unwrap_or(default);
730 let default = debug == Some(true);
731 config.rust_debug_assertions = debug_assertions.unwrap_or(default);
732 config.rust_debug_assertions_std =
733 debug_assertions_std.unwrap_or(config.rust_debug_assertions);
735 let with_defaults = |debuginfo_level_specific: Option<u32>| {
736 debuginfo_level_specific.or(debuginfo_level).unwrap_or(if debug == Some(true) {
742 config.rust_debuginfo_level_rustc = with_defaults(debuginfo_level_rustc);
743 config.rust_debuginfo_level_std = with_defaults(debuginfo_level_std);
744 config.rust_debuginfo_level_tools = with_defaults(debuginfo_level_tools);
745 config.rust_debuginfo_level_tests = debuginfo_level_tests.unwrap_or(0);
747 let default = config.channel == "dev";
748 config.ignore_git = ignore_git.unwrap_or(default);
753 /// Try to find the relative path of `bindir`, otherwise return it in full.
754 pub fn bindir_relative(&self) -> &Path {
755 let bindir = &self.bindir;
756 if bindir.is_absolute() {
757 // Try to make it relative to the prefix.
758 if let Some(prefix) = &self.prefix {
759 if let Ok(stripped) = bindir.strip_prefix(prefix) {
767 /// Try to find the relative path of `libdir`.
768 pub fn libdir_relative(&self) -> Option<&Path> {
769 let libdir = self.libdir.as_ref()?;
770 if libdir.is_relative() {
773 // Try to make it relative to the prefix.
774 libdir.strip_prefix(self.prefix.as_ref()?).ok()
778 pub fn verbose(&self) -> bool {
782 pub fn very_verbose(&self) -> bool {
786 pub fn llvm_enabled(&self) -> bool {
787 self.rust_codegen_backends.contains(&INTERNER.intern_str("llvm"))
791 fn set<T>(field: &mut T, val: Option<T>) {
792 if let Some(v) = val {
797 fn threads_from_config(v: u32) -> u32 {
799 0 => num_cpus::get() as u32,