1 // Copyright 2016 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 //! Documentation generation for rustbuild.
13 //! This module implements generation for all bits and pieces of documentation
14 //! for the Rust project. This notably includes suites like the rust book, the
15 //! nomicon, standalone documentation, etc.
17 //! Everything here is basically just a shim around calling either `rustbook` or
20 use std::fs::{self, File};
21 use std::io::prelude::*;
24 use std::process::Command;
26 use {Build, Compiler, Mode};
27 use util::{cp_r, symlink_dir};
28 use build_helper::up_to_date;
30 /// Invoke `rustbook` as compiled in `stage` for `target` for the doc book
31 /// `name` into the `out` path.
33 /// This will not actually generate any documentation if the documentation has
34 /// already been generated.
35 pub fn rustbook(build: &Build, target: &str, name: &str) {
36 let out = build.doc_out(target);
37 t!(fs::create_dir_all(&out));
39 let out = out.join(name);
40 let compiler = Compiler::new(0, &build.config.build);
41 let src = build.src.join("src/doc").join(name);
42 let index = out.join("index.html");
43 let rustbook = build.tool(&compiler, "rustbook");
44 if up_to_date(&src, &index) && up_to_date(&rustbook, &index) {
47 println!("Rustbook ({}) - {}", target, name);
48 let _ = fs::remove_dir_all(&out);
49 build.run(build.tool_cmd(&compiler, "rustbook")
56 /// Build the book and associated stuff.
60 /// * Book (first edition)
61 /// * Book (second edition)
64 pub fn book(build: &Build, target: &str, name: &str) {
65 // build book first edition
66 rustbook(build, target, &format!("{}/first-edition", name));
68 // build book second edition
69 rustbook(build, target, &format!("{}/second-edition", name));
71 // build the index page
72 let index = format!("{}/index.md", name);
73 invoke_rustdoc(build, target, &index);
76 fn invoke_rustdoc(build: &Build, target: &str, markdown: &str) {
77 let out = build.doc_out(target);
79 let compiler = Compiler::new(0, &build.config.build);
81 let path = build.src.join("src/doc").join(markdown);
83 let rustdoc = build.rustdoc(&compiler);
85 let favicon = build.src.join("src/doc/favicon.inc");
86 let footer = build.src.join("src/doc/footer.inc");
87 t!(fs::copy(build.src.join("src/doc/rust.css"), out.join("rust.css")));
89 let version_info = out.join("version_info.html");
91 let mut cmd = Command::new(&rustdoc);
93 build.add_rustc_lib_path(&compiler, &mut cmd);
95 let out = out.join("book");
97 cmd.arg("--html-after-content").arg(&footer)
98 .arg("--html-before-content").arg(&version_info)
99 .arg("--html-in-header").arg(&favicon)
100 .arg("--markdown-playground-url")
101 .arg("https://play.rust-lang.org/")
104 .arg("--markdown-css")
110 /// Generates all standalone documentation as compiled by the rustdoc in `stage`
111 /// for the `target` into `out`.
113 /// This will list all of `src/doc` looking for markdown files and appropriately
114 /// perform transformations like substituting `VERSION`, `SHORT_HASH`, and
115 /// `STAMP` alongw ith providing the various header/footer HTML we've cutomized.
117 /// In the end, this is just a glorified wrapper around rustdoc!
118 pub fn standalone(build: &Build, target: &str) {
119 println!("Documenting standalone ({})", target);
120 let out = build.doc_out(target);
121 t!(fs::create_dir_all(&out));
123 let compiler = Compiler::new(0, &build.config.build);
125 let favicon = build.src.join("src/doc/favicon.inc");
126 let footer = build.src.join("src/doc/footer.inc");
127 let full_toc = build.src.join("src/doc/full-toc.inc");
128 t!(fs::copy(build.src.join("src/doc/rust.css"), out.join("rust.css")));
130 let version_input = build.src.join("src/doc/version_info.html.template");
131 let version_info = out.join("version_info.html");
133 if !up_to_date(&version_input, &version_info) {
134 let mut info = String::new();
135 t!(t!(File::open(&version_input)).read_to_string(&mut info));
136 let info = info.replace("VERSION", &build.rust_release())
137 .replace("SHORT_HASH", build.rust_info.sha_short().unwrap_or(""))
138 .replace("STAMP", build.rust_info.sha().unwrap_or(""));
139 t!(t!(File::create(&version_info)).write_all(info.as_bytes()));
142 for file in t!(fs::read_dir(build.src.join("src/doc"))) {
144 let path = file.path();
145 let filename = path.file_name().unwrap().to_str().unwrap();
146 if !filename.ends_with(".md") || filename == "README.md" {
150 let html = out.join(filename).with_extension("html");
151 let rustdoc = build.rustdoc(&compiler);
152 if up_to_date(&path, &html) &&
153 up_to_date(&footer, &html) &&
154 up_to_date(&favicon, &html) &&
155 up_to_date(&full_toc, &html) &&
156 up_to_date(&version_info, &html) &&
157 up_to_date(&rustdoc, &html) {
161 let mut cmd = Command::new(&rustdoc);
162 build.add_rustc_lib_path(&compiler, &mut cmd);
163 cmd.arg("--html-after-content").arg(&footer)
164 .arg("--html-before-content").arg(&version_info)
165 .arg("--html-in-header").arg(&favicon)
166 .arg("--markdown-playground-url")
167 .arg("https://play.rust-lang.org/")
171 if filename == "not_found.md" {
172 cmd.arg("--markdown-no-toc")
173 .arg("--markdown-css")
174 .arg("https://doc.rust-lang.org/rust.css");
176 cmd.arg("--markdown-css").arg("rust.css");
182 /// Compile all standard library documentation.
184 /// This will generate all documentation for the standard library and its
185 /// dependencies. This is largely just a wrapper around `cargo doc`.
186 pub fn std(build: &Build, stage: u32, target: &str) {
187 println!("Documenting stage{} std ({})", stage, target);
188 let out = build.doc_out(target);
189 t!(fs::create_dir_all(&out));
190 let compiler = Compiler::new(stage, &build.config.build);
191 let compiler = if build.force_use_stage1(&compiler, target) {
192 Compiler::new(1, compiler.host)
196 let out_dir = build.stage_out(&compiler, Mode::Libstd)
197 .join(target).join("doc");
198 let rustdoc = build.rustdoc(&compiler);
200 // Here what we're doing is creating a *symlink* (directory junction on
201 // Windows) to the final output location. This is not done as an
202 // optimization but rather for correctness. We've got three trees of
203 // documentation, one for std, one for test, and one for rustc. It's then
204 // our job to merge them all together.
206 // Unfortunately rustbuild doesn't know nearly as well how to merge doc
207 // trees as rustdoc does itself, so instead of actually having three
208 // separate trees we just have rustdoc output to the same location across
211 // This way rustdoc generates output directly into the output, and rustdoc
212 // will also directly handle merging.
213 let my_out = build.crate_doc_out(target);
214 build.clear_if_dirty(&my_out, &rustdoc);
215 t!(symlink_dir_force(&my_out, &out_dir));
217 let mut cargo = build.cargo(&compiler, Mode::Libstd, target, "doc");
218 cargo.arg("--manifest-path")
219 .arg(build.src.join("src/libstd/Cargo.toml"))
220 .arg("--features").arg(build.std_features());
222 // We don't want to build docs for internal std dependencies unless
223 // in compiler-docs mode. When not in that mode, we whitelist the crates
224 // for which docs must be built.
225 if !build.config.compiler_docs {
226 cargo.arg("--no-deps");
227 for krate in &["alloc", "collections", "core", "std", "std_unicode"] {
228 cargo.arg("-p").arg(krate);
229 // Create all crate output directories first to make sure rustdoc uses
231 // FIXME: Cargo should probably do this itself.
232 t!(fs::create_dir_all(out_dir.join(krate)));
237 build.run(&mut cargo);
241 /// Compile all libtest documentation.
243 /// This will generate all documentation for libtest and its dependencies. This
244 /// is largely just a wrapper around `cargo doc`.
245 pub fn test(build: &Build, stage: u32, target: &str) {
246 println!("Documenting stage{} test ({})", stage, target);
247 let out = build.doc_out(target);
248 t!(fs::create_dir_all(&out));
249 let compiler = Compiler::new(stage, &build.config.build);
250 let compiler = if build.force_use_stage1(&compiler, target) {
251 Compiler::new(1, compiler.host)
255 let out_dir = build.stage_out(&compiler, Mode::Libtest)
256 .join(target).join("doc");
257 let rustdoc = build.rustdoc(&compiler);
259 // See docs in std above for why we symlink
260 let my_out = build.crate_doc_out(target);
261 build.clear_if_dirty(&my_out, &rustdoc);
262 t!(symlink_dir_force(&my_out, &out_dir));
264 let mut cargo = build.cargo(&compiler, Mode::Libtest, target, "doc");
265 cargo.arg("--manifest-path")
266 .arg(build.src.join("src/libtest/Cargo.toml"));
267 build.run(&mut cargo);
271 /// Generate all compiler documentation.
273 /// This will generate all documentation for the compiler libraries and their
274 /// dependencies. This is largely just a wrapper around `cargo doc`.
275 pub fn rustc(build: &Build, stage: u32, target: &str) {
276 println!("Documenting stage{} compiler ({})", stage, target);
277 let out = build.doc_out(target);
278 t!(fs::create_dir_all(&out));
279 let compiler = Compiler::new(stage, &build.config.build);
280 let compiler = if build.force_use_stage1(&compiler, target) {
281 Compiler::new(1, compiler.host)
285 let out_dir = build.stage_out(&compiler, Mode::Librustc)
286 .join(target).join("doc");
287 let rustdoc = build.rustdoc(&compiler);
289 // See docs in std above for why we symlink
290 let my_out = build.crate_doc_out(target);
291 build.clear_if_dirty(&my_out, &rustdoc);
292 t!(symlink_dir_force(&my_out, &out_dir));
294 let mut cargo = build.cargo(&compiler, Mode::Librustc, target, "doc");
295 cargo.arg("--manifest-path")
296 .arg(build.src.join("src/rustc/Cargo.toml"))
297 .arg("--features").arg(build.rustc_features());
299 if build.config.compiler_docs {
300 // src/rustc/Cargo.toml contains bin crates called rustc and rustdoc
301 // which would otherwise overwrite the docs for the real rustc and
302 // rustdoc lib crates.
303 cargo.arg("-p").arg("rustc_driver")
304 .arg("-p").arg("rustdoc");
306 // Like with libstd above if compiler docs aren't enabled then we're not
307 // documenting internal dependencies, so we have a whitelist.
308 cargo.arg("--no-deps");
309 for krate in &["proc_macro"] {
310 cargo.arg("-p").arg(krate);
314 build.run(&mut cargo);
318 /// Generates the HTML rendered error-index by running the
319 /// `error_index_generator` tool.
320 pub fn error_index(build: &Build, target: &str) {
321 println!("Documenting error index ({})", target);
322 let out = build.doc_out(target);
323 t!(fs::create_dir_all(&out));
324 let compiler = Compiler::new(0, &build.config.build);
325 let mut index = build.tool_cmd(&compiler, "error_index_generator");
327 index.arg(out.join("error-index.html"));
329 // FIXME: shouldn't have to pass this env var
330 index.env("CFG_BUILD", &build.config.build);
332 build.run(&mut index);
335 fn symlink_dir_force(src: &Path, dst: &Path) -> io::Result<()> {
336 if let Ok(m) = fs::symlink_metadata(dst) {
337 if m.file_type().is_dir() {
338 try!(fs::remove_dir_all(dst));
340 // handle directory junctions on windows by falling back to
342 try!(fs::remove_file(dst).or_else(|_| {
348 symlink_dir(src, dst)