1 // Copyright 2012-2014 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 #![crate_name = "rustdoc"]
12 #![unstable(feature = "rustdoc", issue = "27812")]
13 #![crate_type = "dylib"]
14 #![crate_type = "rlib"]
15 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
16 html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
17 html_root_url = "https://doc.rust-lang.org/nightly/",
18 html_playground_url = "https://play.rust-lang.org/")]
19 #![cfg_attr(not(stage0), deny(warnings))]
21 #![feature(box_patterns)]
22 #![feature(box_syntax)]
24 #![feature(rustc_private)]
25 #![feature(set_stdio)]
26 #![feature(slice_patterns)]
27 #![feature(staged_api)]
30 #![feature(question_mark)]
36 extern crate rustc_const_eval;
37 extern crate rustc_const_math;
38 extern crate rustc_data_structures;
39 extern crate rustc_trans;
40 extern crate rustc_driver;
41 extern crate rustc_resolve;
42 extern crate rustc_lint;
43 extern crate rustc_back;
44 extern crate rustc_metadata;
45 extern crate serialize;
46 #[macro_use] extern crate syntax;
47 extern crate syntax_pos;
48 extern crate test as testing;
49 extern crate rustc_unicode;
50 #[macro_use] extern crate log;
51 extern crate rustc_errors as errors;
53 extern crate serialize as rustc_serialize; // used by deriving
55 use std::collections::{BTreeMap, BTreeSet};
56 use std::default::Default;
58 use std::path::PathBuf;
60 use std::sync::mpsc::channel;
62 use externalfiles::ExternalHtml;
63 use rustc::session::search_paths::SearchPaths;
64 use rustc::session::config::{ErrorOutputType, RustcOptGroup, nightly_options,
68 pub mod externalfiles;
91 use clean::Attributes;
93 type Pass = (&'static str, // name
94 fn(clean::Crate) -> plugins::PluginResult, // fn
95 &'static str); // description
97 const PASSES: &'static [Pass] = &[
98 ("strip-hidden", passes::strip_hidden,
99 "strips all doc(hidden) items from the output"),
100 ("unindent-comments", passes::unindent_comments,
101 "removes excess indentation on comments in order for markdown to like it"),
102 ("collapse-docs", passes::collapse_docs,
103 "concatenates all document attributes into one document attribute"),
104 ("strip-private", passes::strip_private,
105 "strips all private items from a crate which cannot be seen externally, \
106 implies strip-priv-imports"),
107 ("strip-priv-imports", passes::strip_priv_imports,
108 "strips all private import statements (`use`, `extern crate`) from a crate"),
111 const DEFAULT_PASSES: &'static [&'static str] = &[
120 renderinfo: html::render::RenderInfo,
125 const STACK_SIZE: usize = 32000000; // 32MB
126 let res = std::thread::Builder::new().stack_size(STACK_SIZE).spawn(move || {
127 let s = env::args().collect::<Vec<_>>();
129 }).unwrap().join().unwrap_or(101);
130 process::exit(res as i32);
133 fn stable(g: getopts::OptGroup) -> RustcOptGroup { RustcOptGroup::stable(g) }
134 fn unstable(g: getopts::OptGroup) -> RustcOptGroup { RustcOptGroup::unstable(g) }
136 pub fn opts() -> Vec<RustcOptGroup> {
139 stable(optflag("h", "help", "show this help message")),
140 stable(optflag("V", "version", "print rustdoc's version")),
141 stable(optflag("v", "verbose", "use verbose output")),
142 stable(optopt("r", "input-format", "the input type of the specified file",
144 stable(optopt("w", "output-format", "the output type to write",
146 stable(optopt("o", "output", "where to place the output", "PATH")),
147 stable(optopt("", "crate-name", "specify the name of this crate", "NAME")),
148 stable(optmulti("L", "library-path", "directory to add to crate search path",
150 stable(optmulti("", "cfg", "pass a --cfg to rustc", "")),
151 stable(optmulti("", "extern", "pass an --extern to rustc", "NAME=PATH")),
152 stable(optmulti("", "plugin-path", "directory to load plugins from", "DIR")),
153 stable(optmulti("", "passes",
154 "list of passes to also run, you might want \
155 to pass it multiple times; a value of `list` \
156 will print available passes",
158 stable(optmulti("", "plugins", "space separated list of plugins to also load",
160 stable(optflag("", "no-defaults", "don't run the default passes")),
161 stable(optflag("", "test", "run code examples as tests")),
162 stable(optmulti("", "test-args", "arguments to pass to the test runner",
164 stable(optopt("", "target", "target triple to document", "TRIPLE")),
165 stable(optmulti("", "markdown-css",
166 "CSS files to include via <link> in a rendered Markdown file",
168 stable(optmulti("", "html-in-header",
169 "files to include inline in the <head> section of a rendered Markdown file \
170 or generated documentation",
172 stable(optmulti("", "html-before-content",
173 "files to include inline between <body> and the content of a rendered \
174 Markdown file or generated documentation",
176 stable(optmulti("", "html-after-content",
177 "files to include inline between the content and </body> of a rendered \
178 Markdown file or generated documentation",
180 stable(optopt("", "markdown-playground-url",
181 "URL to send code snippets to", "URL")),
182 stable(optflag("", "markdown-no-toc", "don't include table of contents")),
183 unstable(optopt("e", "extend-css",
184 "to redefine some css rules with a given file to generate doc with your \
185 own theme", "PATH")),
186 unstable(optmulti("Z", "",
187 "internal and debugging options (only on nightly build)", "FLAG")),
191 pub fn usage(argv0: &str) {
193 getopts::usage(&format!("{} [options] <input>", argv0),
195 .map(|x| x.opt_group)
196 .collect::<Vec<getopts::OptGroup>>()));
199 pub fn main_args(args: &[String]) -> isize {
200 let all_groups: Vec<getopts::OptGroup> = opts()
202 .map(|x| x.opt_group)
204 let matches = match getopts::getopts(&args[1..], &all_groups) {
211 // Check for unstable options.
212 nightly_options::check_nightly_options(&matches, &opts());
214 if matches.opt_present("h") || matches.opt_present("help") {
217 } else if matches.opt_present("version") {
218 rustc_driver::version("rustdoc", &matches);
222 if matches.opt_strs("passes") == ["list"] {
223 println!("Available passes for running rustdoc:");
224 for &(name, _, description) in PASSES {
225 println!("{:>20} - {}", name, description);
227 println!("\nDefault passes for rustdoc:");
228 for &name in DEFAULT_PASSES {
229 println!("{:>20}", name);
234 if matches.free.is_empty() {
235 println!("expected an input file to act on");
237 } if matches.free.len() > 1 {
238 println!("only one input file may be specified");
241 let input = &matches.free[0];
243 let mut libs = SearchPaths::new();
244 for s in &matches.opt_strs("L") {
245 libs.add_path(s, ErrorOutputType::default());
247 let externs = match parse_externs(&matches) {
255 let test_args = matches.opt_strs("test-args");
256 let test_args: Vec<String> = test_args.iter()
257 .flat_map(|s| s.split_whitespace())
258 .map(|s| s.to_string())
261 let should_test = matches.opt_present("test");
262 let markdown_input = input.ends_with(".md") || input.ends_with(".markdown");
264 let output = matches.opt_str("o").map(|s| PathBuf::from(&s));
265 let css_file_extension = matches.opt_str("e").map(|s| PathBuf::from(&s));
266 let cfgs = matches.opt_strs("cfg");
268 if let Some(ref p) = css_file_extension {
270 println!("{}", "--extend-css option must take a css file as input");
275 let external_html = match ExternalHtml::load(
276 &matches.opt_strs("html-in-header"),
277 &matches.opt_strs("html-before-content"),
278 &matches.opt_strs("html-after-content")) {
282 let crate_name = matches.opt_str("crate-name");
284 match (should_test, markdown_input) {
286 return markdown::test(input, cfgs, libs, externs, test_args)
289 return test::run(input, cfgs, libs, externs, test_args, crate_name)
291 (false, true) => return markdown::render(input,
292 output.unwrap_or(PathBuf::from("doc")),
293 &matches, &external_html,
294 !matches.opt_present("markdown-no-toc")),
297 let out = match acquire_input(input, externs, &matches) {
300 println!("input error: {}", s);
304 let Output { krate, passes, renderinfo } = out;
305 info!("going to format");
306 match matches.opt_str("w").as_ref().map(|s| &**s) {
307 Some("html") | None => {
308 html::render::run(krate, &external_html,
309 output.unwrap_or(PathBuf::from("doc")),
310 passes.into_iter().collect(),
313 .expect("failed to generate documentation")
316 println!("unknown output format: {}", s);
324 /// Looks inside the command line arguments to extract the relevant input format
325 /// and files and then generates the necessary rustdoc output for formatting.
326 fn acquire_input(input: &str,
328 matches: &getopts::Matches) -> Result<Output, String> {
329 match matches.opt_str("r").as_ref().map(|s| &**s) {
330 Some("rust") => Ok(rust_input(input, externs, matches)),
331 Some(s) => Err(format!("unknown input format: {}", s)),
333 Ok(rust_input(input, externs, matches))
338 /// Extracts `--extern CRATE=PATH` arguments from `matches` and
339 /// returns a map mapping crate names to their paths or else an
341 fn parse_externs(matches: &getopts::Matches) -> Result<Externs, String> {
342 let mut externs = BTreeMap::new();
343 for arg in &matches.opt_strs("extern") {
344 let mut parts = arg.splitn(2, '=');
345 let name = parts.next().ok_or("--extern value must not be empty".to_string())?;
346 let location = parts.next()
347 .ok_or("--extern value must be of the format `foo=bar`"
349 let name = name.to_string();
350 externs.entry(name).or_insert_with(BTreeSet::new).insert(location.to_string());
352 Ok(Externs::new(externs))
355 /// Interprets the input file as a rust source file, passing it through the
356 /// compiler all the way through the analysis passes. The rustdoc output is then
357 /// generated from the cleaned AST of the crate.
359 /// This form of input will run all of the plug/cleaning passes
360 fn rust_input(cratefile: &str, externs: Externs, matches: &getopts::Matches) -> Output {
361 let mut default_passes = !matches.opt_present("no-defaults");
362 let mut passes = matches.opt_strs("passes");
363 let mut plugins = matches.opt_strs("plugins");
365 // First, parse the crate and extract all relevant information.
366 let mut paths = SearchPaths::new();
367 for s in &matches.opt_strs("L") {
368 paths.add_path(s, ErrorOutputType::default());
370 let cfgs = matches.opt_strs("cfg");
371 let triple = matches.opt_str("target");
373 let cr = PathBuf::from(cratefile);
374 info!("starting to run rustc");
376 let (tx, rx) = channel();
377 rustc_driver::monitor(move || {
378 use rustc::session::config::Input;
380 tx.send(core::run_core(paths, cfgs, externs, Input::File(cr),
383 let (mut krate, renderinfo) = rx.recv().unwrap();
384 info!("finished with rustc");
386 if let Some(name) = matches.opt_str("crate-name") {
390 // Process all of the crate attributes, extracting plugin metadata along
391 // with the passes which we are supposed to run.
392 for attr in krate.module.as_ref().unwrap().attrs.list("doc") {
394 clean::Word(ref w) if "no_default_passes" == *w => {
395 default_passes = false;
397 clean::NameValue(ref name, ref value) => {
398 let sink = match &name[..] {
399 "passes" => &mut passes,
400 "plugins" => &mut plugins,
403 for p in value.split_whitespace() {
404 sink.push(p.to_string());
412 for name in DEFAULT_PASSES.iter().rev() {
413 passes.insert(0, name.to_string());
417 // Load all plugins/passes into a PluginManager
418 let path = matches.opt_str("plugin-path")
419 .unwrap_or("/tmp/rustdoc/plugins".to_string());
420 let mut pm = plugins::PluginManager::new(PathBuf::from(path));
421 for pass in &passes {
422 let plugin = match PASSES.iter()
423 .position(|&(p, _, _)| {
426 Some(i) => PASSES[i].1,
428 error!("unknown pass {}, skipping", *pass);
432 pm.add_plugin(plugin);
434 info!("loading plugins...");
435 for pname in plugins {
436 pm.load_plugin(pname);
440 info!("Executing passes/plugins");
441 let krate = pm.run_plugins(krate);
442 Output { krate: krate, renderinfo: renderinfo, passes: passes }