1 use std::collections::BTreeMap;
3 use std::path::PathBuf;
7 use rustc::lint::Level;
9 use rustc::session::config::{CrateType, parse_crate_types_from_list};
10 use rustc::session::config::{CodegenOptions, DebuggingOptions, ErrorOutputType, Externs};
11 use rustc::session::config::{nightly_options, build_codegen_options, build_debugging_options,
12 get_cmd_lint_options, ExternEntry};
13 use rustc::session::search_paths::SearchPath;
15 use rustc_target::spec::TargetTriple;
16 use syntax::edition::{Edition, DEFAULT_EDITION};
18 use crate::core::new_handler;
19 use crate::externalfiles::ExternalHtml;
21 use crate::html::{static_files};
22 use crate::html::markdown::{IdMap};
24 use crate::passes::{self, DefaultPassOption};
27 /// Configuration options for rustdoc.
30 // Basic options / Options passed directly to rustc
32 /// The crate root or Markdown file to load.
34 /// The name of the crate being documented.
35 pub crate_name: Option<String>,
36 /// Whether or not this is a proc-macro crate
37 pub proc_macro_crate: bool,
38 /// How to format errors and warnings.
39 pub error_format: ErrorOutputType,
40 /// Library search paths to hand to the compiler.
41 pub libs: Vec<SearchPath>,
42 /// The list of external crates to link against.
44 /// List of `cfg` flags to hand to the compiler. Always includes `rustdoc`.
45 pub cfgs: Vec<String>,
46 /// Codegen options to hand to the compiler.
47 pub codegen_options: CodegenOptions,
48 /// Debugging (`-Z`) options to pass to the compiler.
49 pub debugging_options: DebuggingOptions,
50 /// The target used to compile the crate against.
51 pub target: Option<TargetTriple>,
52 /// Edition used when reading the crate. Defaults to "2015". Also used by default when
53 /// compiling doctests from the crate.
55 /// The path to the sysroot. Used during the compilation process.
56 pub maybe_sysroot: Option<PathBuf>,
57 /// Linker to use when building doctests.
58 pub linker: Option<PathBuf>,
59 /// Lint information passed over the command-line.
60 pub lint_opts: Vec<(String, Level)>,
61 /// Whether to ask rustc to describe the lints it knows. Practically speaking, this will not be
62 /// used, since we abort if we have no input file, but it's included for completeness.
63 pub describe_lints: bool,
64 /// What level to cap lints at.
65 pub lint_cap: Option<Level>,
67 // Options specific to running doctests
69 /// Whether we should run doctests instead of generating docs.
70 pub should_test: bool,
71 /// List of arguments to pass to the test harness, if running tests.
72 pub test_args: Vec<String>,
73 /// Optional path to persist the doctest executables to, defaults to a
74 /// temporary directory if not set.
75 pub persist_doctests: Option<PathBuf>,
77 // Options that affect the documentation process
79 /// The selected default set of passes to use.
81 /// Be aware: This option can come both from the CLI and from crate attributes!
82 pub default_passes: DefaultPassOption,
83 /// Any passes manually selected by the user.
85 /// Be aware: This option can come both from the CLI and from crate attributes!
86 pub manual_passes: Vec<String>,
87 /// Whether to display warnings during doc generation or while gathering doctests. By default,
88 /// all non-rustdoc-specific lints are allowed when generating docs.
89 pub display_warnings: bool,
90 /// Whether to run the `calculate-doc-coverage` pass, which counts the number of public items
91 /// with and without documentation.
92 pub show_coverage: bool,
94 // Options that alter generated documentation pages
96 /// Crate version to note on the sidebar of generated docs.
97 pub crate_version: Option<String>,
98 /// Collected options specific to outputting final pages.
99 pub render_options: RenderOptions,
102 impl fmt::Debug for Options {
103 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
104 struct FmtExterns<'a>(&'a Externs);
106 impl<'a> fmt::Debug for FmtExterns<'a> {
107 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
109 .entries(self.0.iter())
114 f.debug_struct("Options")
115 .field("input", &self.input)
116 .field("crate_name", &self.crate_name)
117 .field("proc_macro_crate", &self.proc_macro_crate)
118 .field("error_format", &self.error_format)
119 .field("libs", &self.libs)
120 .field("externs", &FmtExterns(&self.externs))
121 .field("cfgs", &self.cfgs)
122 .field("codegen_options", &"...")
123 .field("debugging_options", &"...")
124 .field("target", &self.target)
125 .field("edition", &self.edition)
126 .field("maybe_sysroot", &self.maybe_sysroot)
127 .field("linker", &self.linker)
128 .field("lint_opts", &self.lint_opts)
129 .field("describe_lints", &self.describe_lints)
130 .field("lint_cap", &self.lint_cap)
131 .field("should_test", &self.should_test)
132 .field("test_args", &self.test_args)
133 .field("persist_doctests", &self.persist_doctests)
134 .field("default_passes", &self.default_passes)
135 .field("manual_passes", &self.manual_passes)
136 .field("display_warnings", &self.display_warnings)
137 .field("show_coverage", &self.show_coverage)
138 .field("crate_version", &self.crate_version)
139 .field("render_options", &self.render_options)
144 /// Configuration options for the HTML page-creation process.
145 #[derive(Clone, Debug)]
146 pub struct RenderOptions {
147 /// Output directory to generate docs into. Defaults to `doc`.
149 /// External files to insert into generated pages.
150 pub external_html: ExternalHtml,
151 /// A pre-populated `IdMap` with the default headings and any headings added by Markdown files
152 /// processed by `external_html`.
154 /// If present, playground URL to use in the "Run" button added to code samples.
156 /// Be aware: This option can come both from the CLI and from crate attributes!
157 pub playground_url: Option<String>,
158 /// Whether to sort modules alphabetically on a module page instead of using declaration order.
159 /// `true` by default.
161 // FIXME(misdreavus): the flag name is `--sort-modules-by-appearance` but the meaning is
162 // inverted once read.
163 pub sort_modules_alphabetically: bool,
164 /// List of themes to extend the docs with. Original argument name is included to assist in
165 /// displaying errors if it fails a theme check.
166 pub themes: Vec<PathBuf>,
167 /// If present, CSS file that contains rules to add to the default CSS.
168 pub extension_css: Option<PathBuf>,
169 /// A map of crate names to the URL to use instead of querying the crate's `html_root_url`.
170 pub extern_html_root_urls: BTreeMap<String, String>,
171 /// If present, suffix added to CSS/JavaScript files when referencing them in generated pages.
172 pub resource_suffix: String,
173 /// Whether to run the static CSS/JavaScript through a minifier when outputting them. `true` by
176 // FIXME(misdreavus): the flag name is `--disable-minification` but the meaning is inverted
178 pub enable_minification: bool,
179 /// Whether to create an index page in the root of the output directory. If this is true but
180 /// `enable_index_page` is None, generate a static listing of crates instead.
181 pub enable_index_page: bool,
182 /// A file to use as the index page at the root of the output directory. Overrides
183 /// `enable_index_page` to be true if set.
184 pub index_page: Option<PathBuf>,
185 /// An optional path to use as the location of static files. If not set, uses combinations of
186 /// `../` to reach the documentation root.
187 pub static_root_path: Option<String>,
189 // Options specific to reading standalone Markdown files
191 /// Whether to generate a table of contents on the output file when reading a standalone
193 pub markdown_no_toc: bool,
194 /// Additional CSS files to link in pages generated from standalone Markdown files.
195 pub markdown_css: Vec<String>,
196 /// If present, playground URL to use in the "Run" button added to code samples generated from
197 /// standalone Markdown files. If not present, `playground_url` is used.
198 pub markdown_playground_url: Option<String>,
199 /// If false, the `select` element to have search filtering by crates on rendered docs
200 /// won't be generated.
201 pub generate_search_filter: bool,
202 /// Option (disabled by default) to generate files used by RLS and some other tools.
203 pub generate_redirect_pages: bool,
207 /// Parses the given command-line for options. If an error message or other early-return has
208 /// been printed, returns `Err` with the exit code.
209 pub fn from_matches(matches: &getopts::Matches) -> Result<Options, i32> {
210 // Check for unstable options.
211 nightly_options::check_nightly_options(&matches, &opts());
213 if matches.opt_present("h") || matches.opt_present("help") {
214 crate::usage("rustdoc");
216 } else if matches.opt_present("version") {
217 rustc_driver::version("rustdoc", &matches);
221 if matches.opt_strs("passes") == ["list"] {
222 println!("Available passes for running rustdoc:");
223 for pass in passes::PASSES {
224 println!("{:>20} - {}", pass.name, pass.description);
226 println!("\nDefault passes for rustdoc:");
227 for pass in passes::DEFAULT_PASSES {
228 println!("{:>20}", pass.name);
230 println!("\nPasses run with `--document-private-items`:");
231 for pass in passes::DEFAULT_PRIVATE_PASSES {
232 println!("{:>20}", pass.name);
235 if nightly_options::is_nightly_build() {
236 println!("\nPasses run with `--show-coverage`:");
237 for pass in passes::DEFAULT_COVERAGE_PASSES {
238 println!("{:>20}", pass.name);
240 println!("\nPasses run with `--show-coverage --document-private-items`:");
241 for pass in passes::PRIVATE_COVERAGE_PASSES {
242 println!("{:>20}", pass.name);
249 let color = session::config::parse_color(&matches);
250 let (json_rendered, _artifacts) = session::config::parse_json(&matches);
251 let error_format = session::config::parse_error_format(&matches, color, json_rendered);
253 let codegen_options = build_codegen_options(matches, error_format);
254 let debugging_options = build_debugging_options(matches, error_format);
256 let diag = new_handler(error_format,
258 debugging_options.treat_err_as_bug,
259 debugging_options.ui_testing);
261 // check for deprecated options
262 check_deprecated_options(&matches, &diag);
264 let to_check = matches.opt_strs("theme-checker");
265 if !to_check.is_empty() {
266 let paths = theme::load_css_paths(static_files::themes::LIGHT.as_bytes());
269 println!("rustdoc: [theme-checker] Starting tests!");
270 for theme_file in to_check.iter() {
271 print!(" - Checking \"{}\"...", theme_file);
272 let (success, differences) = theme::test_theme_against(theme_file, &paths, &diag);
273 if !differences.is_empty() || !success {
276 if !differences.is_empty() {
277 println!("{}", differences.join("\n"));
289 if matches.free.is_empty() {
290 diag.struct_err("missing file operand").emit();
293 if matches.free.len() > 1 {
294 diag.struct_err("too many file operands").emit();
297 let input = PathBuf::from(&matches.free[0]);
299 let libs = matches.opt_strs("L").iter()
300 .map(|s| SearchPath::from_cli_opt(s, error_format))
302 let externs = match parse_externs(&matches) {
305 diag.struct_err(&err).emit();
309 let extern_html_root_urls = match parse_extern_html_roots(&matches) {
312 diag.struct_err(err).emit();
317 let test_args = matches.opt_strs("test-args");
318 let test_args: Vec<String> = test_args.iter()
319 .flat_map(|s| s.split_whitespace())
320 .map(|s| s.to_string())
323 let should_test = matches.opt_present("test");
325 let output = matches.opt_str("o")
326 .map(|s| PathBuf::from(&s))
327 .unwrap_or_else(|| PathBuf::from("doc"));
328 let mut cfgs = matches.opt_strs("cfg");
329 cfgs.push("rustdoc".to_string());
331 cfgs.push("doctest".to_string());
334 let extension_css = matches.opt_str("e").map(|s| PathBuf::from(&s));
336 if let Some(ref p) = extension_css {
338 diag.struct_err("option --extend-css argument must be a file").emit();
343 let mut themes = Vec::new();
344 if matches.opt_present("themes") {
345 let paths = theme::load_css_paths(static_files::themes::LIGHT.as_bytes());
347 for (theme_file, theme_s) in matches.opt_strs("themes")
349 .map(|s| (PathBuf::from(&s), s.to_owned())) {
350 if !theme_file.is_file() {
351 diag.struct_err("option --themes arguments must all be files").emit();
354 let (success, ret) = theme::test_theme_against(&theme_file, &paths, &diag);
355 if !success || !ret.is_empty() {
356 diag.struct_err(&format!("invalid theme: \"{}\"", theme_s))
357 .help("check what's wrong with the --theme-checker option")
361 themes.push(theme_file);
365 let edition = if let Some(e) = matches.opt_str("edition") {
369 diag.struct_err("could not parse edition").emit();
377 let mut id_map = html::markdown::IdMap::new();
378 id_map.populate(html::render::initial_ids());
379 let external_html = match ExternalHtml::load(
380 &matches.opt_strs("html-in-header"),
381 &matches.opt_strs("html-before-content"),
382 &matches.opt_strs("html-after-content"),
383 &matches.opt_strs("markdown-before-content"),
384 &matches.opt_strs("markdown-after-content"),
385 &diag, &mut id_map, edition, &None) {
387 None => return Err(3),
390 match matches.opt_str("r").as_ref().map(|s| &**s) {
391 Some("rust") | None => {}
393 diag.struct_err(&format!("unknown input format: {}", s)).emit();
398 match matches.opt_str("w").as_ref().map(|s| &**s) {
399 Some("html") | None => {}
401 diag.struct_err(&format!("unknown output format: {}", s)).emit();
406 let index_page = matches.opt_str("index-page").map(|s| PathBuf::from(&s));
407 if let Some(ref index_page) = index_page {
408 if !index_page.is_file() {
409 diag.struct_err("option `--index-page` argument must be a file").emit();
414 let target = matches.opt_str("target").map(|target| {
415 if target.ends_with(".json") {
416 TargetTriple::TargetPath(PathBuf::from(target))
418 TargetTriple::TargetTriple(target)
422 let show_coverage = matches.opt_present("show-coverage");
423 let document_private = matches.opt_present("document-private-items");
425 let default_passes = if matches.opt_present("no-defaults") {
426 passes::DefaultPassOption::None
427 } else if show_coverage && document_private {
428 passes::DefaultPassOption::PrivateCoverage
429 } else if show_coverage {
430 passes::DefaultPassOption::Coverage
431 } else if document_private {
432 passes::DefaultPassOption::Private
434 passes::DefaultPassOption::Default
436 let manual_passes = matches.opt_strs("passes");
438 let crate_types = match parse_crate_types_from_list(matches.opt_strs("crate-type")) {
441 diag.struct_err(&format!("unknown crate type: {}", e)).emit();
446 let crate_name = matches.opt_str("crate-name");
447 let proc_macro_crate = crate_types.contains(&CrateType::ProcMacro);
448 let playground_url = matches.opt_str("playground-url");
449 let maybe_sysroot = matches.opt_str("sysroot").map(PathBuf::from);
450 let display_warnings = matches.opt_present("display-warnings");
451 let linker = matches.opt_str("linker").map(PathBuf::from);
452 let sort_modules_alphabetically = !matches.opt_present("sort-modules-by-appearance");
453 let resource_suffix = matches.opt_str("resource-suffix").unwrap_or_default();
454 let enable_minification = !matches.opt_present("disable-minification");
455 let markdown_no_toc = matches.opt_present("markdown-no-toc");
456 let markdown_css = matches.opt_strs("markdown-css");
457 let markdown_playground_url = matches.opt_str("markdown-playground-url");
458 let crate_version = matches.opt_str("crate-version");
459 let enable_index_page = matches.opt_present("enable-index-page") || index_page.is_some();
460 let static_root_path = matches.opt_str("static-root-path");
461 let generate_search_filter = !matches.opt_present("disable-per-crate-search");
462 let persist_doctests = matches.opt_str("persist-doctests").map(PathBuf::from);
463 let generate_redirect_pages = matches.opt_present("generate-redirect-pages");
465 let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(matches, error_format);
492 render_options: RenderOptions {
497 sort_modules_alphabetically,
500 extern_html_root_urls,
508 markdown_playground_url,
509 generate_search_filter,
510 generate_redirect_pages,
515 /// Returns `true` if the file given as `self.input` is a Markdown file.
516 pub fn markdown_input(&self) -> bool {
517 self.input.extension()
518 .map_or(false, |e| e == "md" || e == "markdown")
522 /// Prints deprecation warnings for deprecated options
523 fn check_deprecated_options(matches: &getopts::Matches, diag: &errors::Handler) {
524 let deprecated_flags = [
531 for flag in deprecated_flags.iter() {
532 if matches.opt_present(flag) {
533 let mut err = diag.struct_warn(&format!("the '{}' flag is considered deprecated",
535 err.warn("please see https://github.com/rust-lang/rust/issues/44136");
537 if *flag == "no-defaults" {
538 err.help("you may want to use --document-private-items");
545 let removed_flags = [
550 for &flag in removed_flags.iter() {
551 if matches.opt_present(flag) {
552 diag.struct_warn(&format!("the '{}' flag no longer functions", flag))
553 .warn("see CVE-2018-1000622")
559 /// Extracts `--extern-html-root-url` arguments from `matches` and returns a map of crate names to
560 /// the given URLs. If an `--extern-html-root-url` argument was ill-formed, returns an error
561 /// describing the issue.
562 fn parse_extern_html_roots(
563 matches: &getopts::Matches,
564 ) -> Result<BTreeMap<String, String>, &'static str> {
565 let mut externs = BTreeMap::new();
566 for arg in &matches.opt_strs("extern-html-root-url") {
567 let mut parts = arg.splitn(2, '=');
568 let name = parts.next().ok_or("--extern-html-root-url must not be empty")?;
569 let url = parts.next().ok_or("--extern-html-root-url must be of the form name=url")?;
570 externs.insert(name.to_string(), url.to_string());
576 /// Extracts `--extern CRATE=PATH` arguments from `matches` and
577 /// returns a map mapping crate names to their paths or else an
579 // FIXME(eddyb) This shouldn't be duplicated with `rustc::session`.
580 fn parse_externs(matches: &getopts::Matches) -> Result<Externs, String> {
581 let mut externs: BTreeMap<_, ExternEntry> = BTreeMap::new();
582 for arg in &matches.opt_strs("extern") {
583 let mut parts = arg.splitn(2, '=');
584 let name = parts.next().ok_or("--extern value must not be empty".to_string())?;
585 let location = parts.next().map(|s| s.to_string());
586 if location.is_none() && !nightly_options::is_unstable_enabled(matches) {
587 return Err("the `-Z unstable-options` flag must also be passed to \
588 enable `--extern crate_name` without `=path`".to_string());
590 let name = name.to_string();
591 // For Rustdoc purposes, we can treat all externs as public
594 .locations.insert(location.clone());
596 Ok(Externs::new(externs))