src/bootstrap/install.rs

   1 //! Implementation of the install aspects of the compiler.
   2 //!
   3 //! This module is responsible for installing the standard library,
   4 //! compiler, and documentation.
   5
   6 use std::env;
   7 use std::fs;
   8 use std::path::{Component, Path, PathBuf};
   9 use std::process::Command;
  10
  11 use build_helper::t;
  12
  13 use crate::dist::{self, pkgname, sanitize_sh, tmpdir};
  14 use crate::Compiler;
  15
  16 use crate::builder::{Builder, RunConfig, ShouldRun, Step};
  17 use crate::cache::Interned;
  18 use crate::config::Config;
  19
  20 pub fn install_docs(builder: &Builder<'_>, stage: u32, host: Interned<String>) {
  21     install_sh(builder, "docs", "rust-docs", stage, Some(host));
  22 }
  23
  24 pub fn install_std(builder: &Builder<'_>, stage: u32, target: Interned<String>) {
  25     install_sh(builder, "std", "rust-std", stage, Some(target));
  26 }
  27
  28 pub fn install_cargo(builder: &Builder<'_>, stage: u32, host: Interned<String>) {
  29     install_sh(builder, "cargo", "cargo", stage, Some(host));
  30 }
  31
  32 pub fn install_rls(builder: &Builder<'_>, stage: u32, host: Interned<String>) {
  33     install_sh(builder, "rls", "rls", stage, Some(host));
  34 }
  35 pub fn install_clippy(builder: &Builder<'_>, stage: u32, host: Interned<String>) {
  36     install_sh(builder, "clippy", "clippy", stage, Some(host));
  37 }
  38 pub fn install_miri(builder: &Builder<'_>, stage: u32, host: Interned<String>) {
  39     install_sh(builder, "miri", "miri", stage, Some(host));
  40 }
  41
  42 pub fn install_rustfmt(builder: &Builder<'_>, stage: u32, host: Interned<String>) {
  43     install_sh(builder, "rustfmt", "rustfmt", stage, Some(host));
  44 }
  45
  46 pub fn install_analysis(builder: &Builder<'_>, stage: u32, host: Interned<String>) {
  47     install_sh(builder, "analysis", "rust-analysis", stage, Some(host));
  48 }
  49
  50 pub fn install_src(builder: &Builder<'_>, stage: u32) {
  51     install_sh(builder, "src", "rust-src", stage, None);
  52 }
  53 pub fn install_rustc(builder: &Builder<'_>, stage: u32, host: Interned<String>) {
  54     install_sh(builder, "rustc", "rustc", stage, Some(host));
  55 }
  56
  57 fn install_sh(
  58     builder: &Builder<'_>,
  59     package: &str,
  60     name: &str,
  61     stage: u32,
  62     host: Option<Interned<String>>,
  63 ) {
  64     builder.info(&format!("Install {} stage{} ({:?})", package, stage, host));
  65
  66     let prefix_default = PathBuf::from("/usr/local");
  67     let sysconfdir_default = PathBuf::from("/etc");
  68     let datadir_default = PathBuf::from("share");
  69     let docdir_default = datadir_default.join("doc/rust");
  70     let libdir_default = PathBuf::from("lib");
  71     let mandir_default = datadir_default.join("man");
  72     let prefix = builder.config.prefix.as_ref().map_or(prefix_default, |p| {
  73         fs::canonicalize(p).unwrap_or_else(|_| panic!("could not canonicalize {}", p.display()))
  74     });
  75     let sysconfdir = builder.config.sysconfdir.as_ref().unwrap_or(&sysconfdir_default);
  76     let datadir = builder.config.datadir.as_ref().unwrap_or(&datadir_default);
  77     let docdir = builder.config.docdir.as_ref().unwrap_or(&docdir_default);
  78     let bindir = &builder.config.bindir;
  79     let libdir = builder.config.libdir.as_ref().unwrap_or(&libdir_default);
  80     let mandir = builder.config.mandir.as_ref().unwrap_or(&mandir_default);
  81
  82     let sysconfdir = prefix.join(sysconfdir);
  83     let datadir = prefix.join(datadir);
  84     let docdir = prefix.join(docdir);
  85     let bindir = prefix.join(bindir);
  86     let libdir = prefix.join(libdir);
  87     let mandir = prefix.join(mandir);
  88
  89     let destdir = env::var_os("DESTDIR").map(PathBuf::from);
  90
  91     let prefix = add_destdir(&prefix, &destdir);
  92     let sysconfdir = add_destdir(&sysconfdir, &destdir);
  93     let datadir = add_destdir(&datadir, &destdir);
  94     let docdir = add_destdir(&docdir, &destdir);
  95     let bindir = add_destdir(&bindir, &destdir);
  96     let libdir = add_destdir(&libdir, &destdir);
  97     let mandir = add_destdir(&mandir, &destdir);
  98
  99     let empty_dir = builder.out.join("tmp/empty_dir");
 100
 101     t!(fs::create_dir_all(&empty_dir));
 102     let package_name = if let Some(host) = host {
 103         format!("{}-{}", pkgname(builder, name), host)
 104     } else {
 105         pkgname(builder, name)
 106     };
 107
 108     let mut cmd = Command::new("sh");
 109     cmd.current_dir(&empty_dir)
 110         .arg(sanitize_sh(&tmpdir(builder).join(&package_name).join("install.sh")))
 111         .arg(format!("--prefix={}", sanitize_sh(&prefix)))
 112         .arg(format!("--sysconfdir={}", sanitize_sh(&sysconfdir)))
 113         .arg(format!("--datadir={}", sanitize_sh(&datadir)))
 114         .arg(format!("--docdir={}", sanitize_sh(&docdir)))
 115         .arg(format!("--bindir={}", sanitize_sh(&bindir)))
 116         .arg(format!("--libdir={}", sanitize_sh(&libdir)))
 117         .arg(format!("--mandir={}", sanitize_sh(&mandir)))
 118         .arg("--disable-ldconfig");
 119     builder.run(&mut cmd);
 120     t!(fs::remove_dir_all(&empty_dir));
 121 }
 122
 123 fn add_destdir(path: &Path, destdir: &Option<PathBuf>) -> PathBuf {
 124     let mut ret = match *destdir {
 125         Some(ref dest) => dest.clone(),
 126         None => return path.to_path_buf(),
 127     };
 128     for part in path.components() {
 129         match part {
 130             Component::Normal(s) => ret.push(s),
 131             _ => {}
 132         }
 133     }
 134     ret
 135 }
 136
 137 macro_rules! install {
 138     (($sel:ident, $builder:ident, $_config:ident),
 139        $($name:ident,
 140        $path:expr,
 141        $default_cond:expr,
 142        only_hosts: $only_hosts:expr,
 143        $run_item:block $(, $c:ident)*;)+) => {
 144         $(
 145             #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 146         pub struct $name {
 147             pub compiler: Compiler,
 148             pub target: Interned<String>,
 149         }
 150
 151         impl $name {
 152             #[allow(dead_code)]
 153             fn should_build(config: &Config) -> bool {
 154                 config.extended && config.tools.as_ref()
 155                     .map_or(true, |t| t.contains($path))
 156             }
 157
 158             #[allow(dead_code)]
 159             fn should_install(builder: &Builder<'_>) -> bool {
 160                 builder.config.tools.as_ref().map_or(false, |t| t.contains($path))
 161             }
 162         }
 163
 164         impl Step for $name {
 165             type Output = ();
 166             const DEFAULT: bool = true;
 167             const ONLY_HOSTS: bool = $only_hosts;
 168             $(const $c: bool = true;)*
 169
 170             fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
 171                 let $_config = &run.builder.config;
 172                 run.path($path).default_condition($default_cond)
 173             }
 174
 175             fn make_run(run: RunConfig<'_>) {
 176                 run.builder.ensure($name {
 177                     compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build),
 178                     target: run.target,
 179                 });
 180             }
 181
 182             fn run($sel, $builder: &Builder<'_>) {
 183                 $run_item
 184             }
 185         })+
 186     }
 187 }
 188
 189 install!((self, builder, _config),
 190     Docs, "src/doc", _config.docs, only_hosts: false, {
 191         builder.ensure(dist::Docs { host: self.target });
 192         install_docs(builder, self.compiler.stage, self.target);
 193     };
 194     Std, "src/libstd", true, only_hosts: true, {
 195         for target in &builder.targets {
 196             builder.ensure(dist::Std {
 197                 compiler: self.compiler,
 198                 target: *target
 199             });
 200             install_std(builder, self.compiler.stage, *target);
 201         }
 202     };
 203     Cargo, "cargo", Self::should_build(_config), only_hosts: true, {
 204         builder.ensure(dist::Cargo { compiler: self.compiler, target: self.target });
 205         install_cargo(builder, self.compiler.stage, self.target);
 206     };
 207     Rls, "rls", Self::should_build(_config), only_hosts: true, {
 208         if builder.ensure(dist::Rls { compiler: self.compiler, target: self.target }).is_some() ||
 209             Self::should_install(builder) {
 210             install_rls(builder, self.compiler.stage, self.target);
 211         } else {
 212             builder.info(
 213                 &format!("skipping Install RLS stage{} ({})", self.compiler.stage, self.target),
 214             );
 215         }
 216     };
 217     Clippy, "clippy", Self::should_build(_config), only_hosts: true, {
 218         if builder.ensure(dist::Clippy {
 219             compiler: self.compiler,
 220             target: self.target,
 221         }).is_some() || Self::should_install(builder) {
 222             install_clippy(builder, self.compiler.stage, self.target);
 223         } else {
 224             builder.info(
 225                 &format!("skipping Install clippy stage{} ({})", self.compiler.stage, self.target),
 226             );
 227         }
 228     };
 229     Miri, "miri", Self::should_build(_config), only_hosts: true, {
 230         if builder.ensure(dist::Miri { compiler: self.compiler, target: self.target }).is_some() ||
 231             Self::should_install(builder) {
 232             install_miri(builder, self.compiler.stage, self.target);
 233         } else {
 234             builder.info(
 235                 &format!("skipping Install miri stage{} ({})", self.compiler.stage, self.target),
 236             );
 237         }
 238     };
 239     Rustfmt, "rustfmt", Self::should_build(_config), only_hosts: true, {
 240         if builder.ensure(dist::Rustfmt {
 241             compiler: self.compiler,
 242             target: self.target
 243         }).is_some() || Self::should_install(builder) {
 244             install_rustfmt(builder, self.compiler.stage, self.target);
 245         } else {
 246             builder.info(
 247                 &format!("skipping Install Rustfmt stage{} ({})", self.compiler.stage, self.target),
 248             );
 249         }
 250     };
 251     Analysis, "analysis", Self::should_build(_config), only_hosts: false, {
 252         builder.ensure(dist::Analysis {
 253             // Find the actual compiler (handling the full bootstrap option) which
 254             // produced the save-analysis data because that data isn't copied
 255             // through the sysroot uplifting.
 256             compiler: builder.compiler_for(builder.top_stage, builder.config.build, self.target),
 257             target: self.target
 258         });
 259         install_analysis(builder, self.compiler.stage, self.target);
 260     };
 261     Rustc, "src/librustc", true, only_hosts: true, {
 262         builder.ensure(dist::Rustc {
 263             compiler: self.compiler,
 264         });
 265         install_rustc(builder, self.compiler.stage, self.target);
 266     };
 267 );
 268
 269 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 270 pub struct Src {
 271     pub stage: u32,
 272 }
 273
 274 impl Step for Src {
 275     type Output = ();
 276     const DEFAULT: bool = true;
 277     const ONLY_HOSTS: bool = true;
 278
 279     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
 280         let config = &run.builder.config;
 281         let cond = config.extended && config.tools.as_ref().map_or(true, |t| t.contains("src"));
 282         run.path("src").default_condition(cond)
 283     }
 284
 285     fn make_run(run: RunConfig<'_>) {
 286         run.builder.ensure(Src { stage: run.builder.top_stage });
 287     }
 288
 289     fn run(self, builder: &Builder<'_>) {
 290         builder.ensure(dist::Src);
 291         install_src(builder, self.stage);
 292     }
 293 }