Auto merge of #35641 - ahmedcharles:install, r=alexcrichton

rustbuild: Add install target. #34675

It just prints to the screen currently.

r? @alexcrichton

I'm working on the next commit to actually have it install.

src/bootstrap/config.rs

@@ -79,6 +79,9 @@ pub struct Config {
     // Fallback musl-root for all targets
     pub musl_root: Option<PathBuf>,
     pub prefix: Option<String>,
+    pub docdir: Option<String>,
+    pub libdir: Option<String>,
+    pub mandir: Option<String>,
     pub codegen_tests: bool,
     pub nodejs: Option<PathBuf>,
 }
@@ -359,6 +362,15 @@ impl Config {
                 "CFG_PREFIX" => {
                     self.prefix = Some(value.to_string());
                 }
+                "CFG_DOCDIR" => {
+                    self.docdir = Some(value.to_string());
+                }
+                "CFG_LIBDIR" => {
+                    self.libdir = Some(value.to_string());
+                }
+                "CFG_MANDIR" => {
+                    self.mandir = Some(value.to_string());
+                }
                 "CFG_LLVM_ROOT" if value.len() > 0 => {
                     let target = self.target_config.entry(self.build.clone())
                                      .or_insert(Target::default());

src/bootstrap/dist.rs

@@ -27,7 +27,7 @@ use {Build, Compiler};
 use util::{cp_r, libdir, is_dylib, cp_filtered, copy};
 use regex::{RegexSet, quote};
 
-fn package_vers(build: &Build) -> &str {
+pub fn package_vers(build: &Build) -> &str {
     match &build.config.channel[..] {
         "stable" => &build.release,
         "beta" => "beta",
@@ -40,7 +40,7 @@ fn distdir(build: &Build) -> PathBuf {
     build.out.join("dist")
 }
 
-fn tmpdir(build: &Build) -> PathBuf {
+pub fn tmpdir(build: &Build) -> PathBuf {
     build.out.join("tmp/dist")
 }
 
@@ -418,7 +418,7 @@ fn chmod(_path: &Path, _perms: u32) {}
 
 // We have to run a few shell scripts, which choke quite a bit on both `\`
 // characters and on `C:\` paths, so normalize both of them away.
-fn sanitize_sh(path: &Path) -> String {
+pub fn sanitize_sh(path: &Path) -> String {
     let path = path.to_str().unwrap().replace("\\", "/");
     return change_drive(&path).unwrap_or(path);
 

src/bootstrap/install.rs

@@ -0,0 +1,61 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Implementation of the install aspects of the compiler.
+//!
+//! This module is responsible for installing the standard library,
+//! compiler, and documentation.
+
+use std::fs;
+use std::borrow::Cow;
+use std::path::Path;
+use std::process::Command;
+
+use Build;
+use dist::{package_vers, sanitize_sh, tmpdir};
+
+/// Installs everything.
+pub fn install(build: &Build, stage: u32, host: &str) {
+    let prefix = build.config.prefix.as_ref().clone().map(|x| Path::new(x))
+        .unwrap_or(Path::new("/usr/local"));
+    let docdir = build.config.docdir.as_ref().clone().map(|x| Cow::Borrowed(Path::new(x)))
+        .unwrap_or(Cow::Owned(prefix.join("share/doc/rust")));
+    let libdir = build.config.libdir.as_ref().clone().map(|x| Cow::Borrowed(Path::new(x)))
+        .unwrap_or(Cow::Owned(prefix.join("lib")));
+    let mandir = build.config.mandir.as_ref().clone().map(|x| Cow::Borrowed(Path::new(x)))
+        .unwrap_or(Cow::Owned(prefix.join("share/man")));
+    let empty_dir = build.out.join("tmp/empty_dir");
+    t!(fs::create_dir_all(&empty_dir));
+    if build.config.docs {
+        install_sh(&build, "docs", "rust-docs", stage, host, prefix,
+                   &docdir, &libdir, &mandir, &empty_dir);
+    }
+    install_sh(&build, "std", "rust-std", stage, host, prefix,
+               &docdir, &libdir, &mandir, &empty_dir);
+    install_sh(&build, "rustc", "rustc", stage, host, prefix,
+               &docdir, &libdir, &mandir, &empty_dir);
+    t!(fs::remove_dir_all(&empty_dir));
+}
+
+fn install_sh(build: &Build, package: &str, name: &str, stage: u32, host: &str,
+              prefix: &Path, docdir: &Path, libdir: &Path, mandir: &Path, empty_dir: &Path) {
+    println!("Install {} stage{} ({})", package, stage, host);
+    let package_name = format!("{}-{}-{}", name, package_vers(build), host);
+
+    let mut cmd = Command::new("sh");
+    cmd.current_dir(empty_dir)
+       .arg(sanitize_sh(&tmpdir(build).join(&package_name).join("install.sh")))
+       .arg(format!("--prefix={}", sanitize_sh(prefix)))
+       .arg(format!("--docdir={}", sanitize_sh(docdir)))
+       .arg(format!("--libdir={}", sanitize_sh(libdir)))
+       .arg(format!("--mandir={}", sanitize_sh(mandir)))
+       .arg("--disable-ldconfig");
+    build.run(&mut cmd);
+}

src/bootstrap/lib.rs

@@ -62,6 +62,7 @@ mod config;
 mod dist;
 mod doc;
 mod flags;
+mod install;
 mod native;
 mod sanity;
 mod step;
@@ -453,6 +454,8 @@ impl Build {
                 DistStd { compiler } => dist::std(self, &compiler, target.target),
                 DistSrc { _dummy } => dist::rust_src(self),
 
+                Install { stage } => install::install(self, stage, target.target),
+
                 DebuggerScripts { stage } => {
                     let compiler = Compiler::new(stage, target.target);
                     dist::debugger_scripts(self,

src/bootstrap/mk/Makefile.in

@@ -51,6 +51,8 @@ check-cargotest:
 	$(Q)$(BOOTSTRAP) --step check-cargotest
 dist:
 	$(Q)$(BOOTSTRAP) --step dist
+install:
+	$(Q)$(BOOTSTRAP) --step install
 tidy:
 	$(Q)$(BOOTSTRAP) --step check-tidy --stage 0
 

src/bootstrap/step.rs

@@ -140,6 +140,9 @@ macro_rules! targets {
             (dist_std, DistStd { compiler: Compiler<'a> }),
             (dist_src, DistSrc { _dummy: () }),
 
+            // install target
+            (install, Install { stage: u32 }),
+
             // Misc targets
             (android_copy_libs, AndroidCopyLibs { compiler: Compiler<'a> }),
         }
@@ -249,8 +252,7 @@ fn top_level(build: &Build) -> Vec<Step> {
         }
     }
 
-    return targets
-
+    targets
 }
 
 fn add_steps<'a>(build: &'a Build,
@@ -467,7 +469,7 @@ impl<'a> Step<'a> {
                         self.dist(stage),
                     ]);
                 }
-                return base
+                base
             }
             Source::CheckLinkcheck { stage } => {
                 vec![self.tool_linkchecker(stage), self.doc(stage)]
@@ -590,7 +592,11 @@ impl<'a> Step<'a> {
                         base.push(target.dist_std(compiler));
                     }
                 }
-                return base
+                base
+            }
+
+            Source::Install { stage } => {
+                vec![self.dist(stage)]
             }
 
             Source::AndroidCopyLibs { compiler } => {