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 /// Library search paths strings to hand to the compiler.
43 pub lib_strs: Vec<String>,
44 /// The list of external crates to link against.
46 /// The list of external crates strings to link against.
47 pub extern_strs: Vec<String>,
48 /// List of `cfg` flags to hand to the compiler. Always includes `rustdoc`.
49 pub cfgs: Vec<String>,
50 /// Codegen options to hand to the compiler.
51 pub codegen_options: CodegenOptions,
52 /// Codegen options strings to hand to the compiler.
53 pub codegen_options_strs: Vec<String>,
54 /// Debugging (`-Z`) options to pass to the compiler.
55 pub debugging_options: DebuggingOptions,
56 /// The target used to compile the crate against.
57 pub target: Option<TargetTriple>,
58 /// Edition used when reading the crate. Defaults to "2015". Also used by default when
59 /// compiling doctests from the crate.
61 /// The path to the sysroot. Used during the compilation process.
62 pub maybe_sysroot: Option<PathBuf>,
63 /// Lint information passed over the command-line.
64 pub lint_opts: Vec<(String, Level)>,
65 /// Whether to ask rustc to describe the lints it knows. Practically speaking, this will not be
66 /// used, since we abort if we have no input file, but it's included for completeness.
67 pub describe_lints: bool,
68 /// What level to cap lints at.
69 pub lint_cap: Option<Level>,
71 // Options specific to running doctests
73 /// Whether we should run doctests instead of generating docs.
74 pub should_test: bool,
75 /// List of arguments to pass to the test harness, if running tests.
76 pub test_args: Vec<String>,
77 /// Optional path to persist the doctest executables to, defaults to a
78 /// temporary directory if not set.
79 pub persist_doctests: Option<PathBuf>,
81 // Options that affect the documentation process
83 /// The selected default set of passes to use.
85 /// Be aware: This option can come both from the CLI and from crate attributes!
86 pub default_passes: DefaultPassOption,
87 /// Any passes manually selected by the user.
89 /// Be aware: This option can come both from the CLI and from crate attributes!
90 pub manual_passes: Vec<String>,
91 /// Whether to display warnings during doc generation or while gathering doctests. By default,
92 /// all non-rustdoc-specific lints are allowed when generating docs.
93 pub display_warnings: bool,
94 /// Whether to run the `calculate-doc-coverage` pass, which counts the number of public items
95 /// with and without documentation.
96 pub show_coverage: bool,
98 // Options that alter generated documentation pages
100 /// Crate version to note on the sidebar of generated docs.
101 pub crate_version: Option<String>,
102 /// Collected options specific to outputting final pages.
103 pub render_options: RenderOptions,
106 impl fmt::Debug for Options {
107 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
108 struct FmtExterns<'a>(&'a Externs);
110 impl<'a> fmt::Debug for FmtExterns<'a> {
111 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
113 .entries(self.0.iter())
118 f.debug_struct("Options")
119 .field("input", &self.input)
120 .field("crate_name", &self.crate_name)
121 .field("proc_macro_crate", &self.proc_macro_crate)
122 .field("error_format", &self.error_format)
123 .field("libs", &self.libs)
124 .field("externs", &FmtExterns(&self.externs))
125 .field("cfgs", &self.cfgs)
126 .field("codegen_options", &"...")
127 .field("debugging_options", &"...")
128 .field("target", &self.target)
129 .field("edition", &self.edition)
130 .field("maybe_sysroot", &self.maybe_sysroot)
131 .field("lint_opts", &self.lint_opts)
132 .field("describe_lints", &self.describe_lints)
133 .field("lint_cap", &self.lint_cap)
134 .field("should_test", &self.should_test)
135 .field("test_args", &self.test_args)
136 .field("persist_doctests", &self.persist_doctests)
137 .field("default_passes", &self.default_passes)
138 .field("manual_passes", &self.manual_passes)
139 .field("display_warnings", &self.display_warnings)
140 .field("show_coverage", &self.show_coverage)
141 .field("crate_version", &self.crate_version)
142 .field("render_options", &self.render_options)
147 /// Configuration options for the HTML page-creation process.
148 #[derive(Clone, Debug)]
149 pub struct RenderOptions {
150 /// Output directory to generate docs into. Defaults to `doc`.
152 /// External files to insert into generated pages.
153 pub external_html: ExternalHtml,
154 /// A pre-populated `IdMap` with the default headings and any headings added by Markdown files
155 /// processed by `external_html`.
157 /// If present, playground URL to use in the "Run" button added to code samples.
159 /// Be aware: This option can come both from the CLI and from crate attributes!
160 pub playground_url: Option<String>,
161 /// Whether to sort modules alphabetically on a module page instead of using declaration order.
162 /// `true` by default.
164 // FIXME(misdreavus): the flag name is `--sort-modules-by-appearance` but the meaning is
165 // inverted once read.
166 pub sort_modules_alphabetically: bool,
167 /// List of themes to extend the docs with. Original argument name is included to assist in
168 /// displaying errors if it fails a theme check.
169 pub themes: Vec<PathBuf>,
170 /// If present, CSS file that contains rules to add to the default CSS.
171 pub extension_css: Option<PathBuf>,
172 /// A map of crate names to the URL to use instead of querying the crate's `html_root_url`.
173 pub extern_html_root_urls: BTreeMap<String, String>,
174 /// If present, suffix added to CSS/JavaScript files when referencing them in generated pages.
175 pub resource_suffix: String,
176 /// Whether to run the static CSS/JavaScript through a minifier when outputting them. `true` by
179 // FIXME(misdreavus): the flag name is `--disable-minification` but the meaning is inverted
181 pub enable_minification: bool,
182 /// Whether to create an index page in the root of the output directory. If this is true but
183 /// `enable_index_page` is None, generate a static listing of crates instead.
184 pub enable_index_page: bool,
185 /// A file to use as the index page at the root of the output directory. Overrides
186 /// `enable_index_page` to be true if set.
187 pub index_page: Option<PathBuf>,
188 /// An optional path to use as the location of static files. If not set, uses combinations of
189 /// `../` to reach the documentation root.
190 pub static_root_path: Option<String>,
192 // Options specific to reading standalone Markdown files
194 /// Whether to generate a table of contents on the output file when reading a standalone
196 pub markdown_no_toc: bool,
197 /// Additional CSS files to link in pages generated from standalone Markdown files.
198 pub markdown_css: Vec<String>,
199 /// If present, playground URL to use in the "Run" button added to code samples generated from
200 /// standalone Markdown files. If not present, `playground_url` is used.
201 pub markdown_playground_url: Option<String>,
202 /// If false, the `select` element to have search filtering by crates on rendered docs
203 /// won't be generated.
204 pub generate_search_filter: bool,
205 /// Option (disabled by default) to generate files used by RLS and some other tools.
206 pub generate_redirect_pages: bool,
210 /// Parses the given command-line for options. If an error message or other early-return has
211 /// been printed, returns `Err` with the exit code.
212 pub fn from_matches(matches: &getopts::Matches) -> Result<Options, i32> {
213 // Check for unstable options.
214 nightly_options::check_nightly_options(&matches, &opts());
216 if matches.opt_present("h") || matches.opt_present("help") {
217 crate::usage("rustdoc");
219 } else if matches.opt_present("version") {
220 rustc_driver::version("rustdoc", &matches);
224 if matches.opt_strs("passes") == ["list"] {
225 println!("Available passes for running rustdoc:");
226 for pass in passes::PASSES {
227 println!("{:>20} - {}", pass.name, pass.description);
229 println!("\nDefault passes for rustdoc:");
230 for pass in passes::DEFAULT_PASSES {
231 println!("{:>20}", pass.name);
233 println!("\nPasses run with `--document-private-items`:");
234 for pass in passes::DEFAULT_PRIVATE_PASSES {
235 println!("{:>20}", pass.name);
238 if nightly_options::is_nightly_build() {
239 println!("\nPasses run with `--show-coverage`:");
240 for pass in passes::DEFAULT_COVERAGE_PASSES {
241 println!("{:>20}", pass.name);
243 println!("\nPasses run with `--show-coverage --document-private-items`:");
244 for pass in passes::PRIVATE_COVERAGE_PASSES {
245 println!("{:>20}", pass.name);
252 let color = session::config::parse_color(&matches);
253 let (json_rendered, _artifacts) = session::config::parse_json(&matches);
254 let error_format = session::config::parse_error_format(&matches, color, json_rendered);
256 let codegen_options = build_codegen_options(matches, error_format);
257 let debugging_options = build_debugging_options(matches, error_format);
259 let diag = new_handler(error_format,
261 debugging_options.treat_err_as_bug,
262 debugging_options.ui_testing);
264 // check for deprecated options
265 check_deprecated_options(&matches, &diag);
267 let to_check = matches.opt_strs("theme-checker");
268 if !to_check.is_empty() {
269 let paths = theme::load_css_paths(static_files::themes::LIGHT.as_bytes());
272 println!("rustdoc: [theme-checker] Starting tests!");
273 for theme_file in to_check.iter() {
274 print!(" - Checking \"{}\"...", theme_file);
275 let (success, differences) = theme::test_theme_against(theme_file, &paths, &diag);
276 if !differences.is_empty() || !success {
279 if !differences.is_empty() {
280 println!("{}", differences.join("\n"));
292 if matches.free.is_empty() {
293 diag.struct_err("missing file operand").emit();
296 if matches.free.len() > 1 {
297 diag.struct_err("too many file operands").emit();
300 let input = PathBuf::from(&matches.free[0]);
302 let libs = matches.opt_strs("L").iter()
303 .map(|s| SearchPath::from_cli_opt(s, error_format))
305 let externs = match parse_externs(&matches) {
308 diag.struct_err(&err).emit();
312 let extern_html_root_urls = match parse_extern_html_roots(&matches) {
315 diag.struct_err(err).emit();
320 let test_args = matches.opt_strs("test-args");
321 let test_args: Vec<String> = test_args.iter()
322 .flat_map(|s| s.split_whitespace())
323 .map(|s| s.to_string())
326 let should_test = matches.opt_present("test");
328 let output = matches.opt_str("o")
329 .map(|s| PathBuf::from(&s))
330 .unwrap_or_else(|| PathBuf::from("doc"));
331 let mut cfgs = matches.opt_strs("cfg");
332 cfgs.push("rustdoc".to_string());
334 cfgs.push("doctest".to_string());
337 let extension_css = matches.opt_str("e").map(|s| PathBuf::from(&s));
339 if let Some(ref p) = extension_css {
341 diag.struct_err("option --extend-css argument must be a file").emit();
346 let mut themes = Vec::new();
347 if matches.opt_present("themes") {
348 let paths = theme::load_css_paths(static_files::themes::LIGHT.as_bytes());
350 for (theme_file, theme_s) in matches.opt_strs("themes")
352 .map(|s| (PathBuf::from(&s), s.to_owned())) {
353 if !theme_file.is_file() {
354 diag.struct_err("option --themes arguments must all be files").emit();
357 let (success, ret) = theme::test_theme_against(&theme_file, &paths, &diag);
358 if !success || !ret.is_empty() {
359 diag.struct_err(&format!("invalid theme: \"{}\"", theme_s))
360 .help("check what's wrong with the --theme-checker option")
364 themes.push(theme_file);
368 let edition = if let Some(e) = matches.opt_str("edition") {
372 diag.struct_err("could not parse edition").emit();
380 let mut id_map = html::markdown::IdMap::new();
381 id_map.populate(html::render::initial_ids());
382 let external_html = match ExternalHtml::load(
383 &matches.opt_strs("html-in-header"),
384 &matches.opt_strs("html-before-content"),
385 &matches.opt_strs("html-after-content"),
386 &matches.opt_strs("markdown-before-content"),
387 &matches.opt_strs("markdown-after-content"),
388 &diag, &mut id_map, edition, &None) {
390 None => return Err(3),
393 match matches.opt_str("r").as_ref().map(|s| &**s) {
394 Some("rust") | None => {}
396 diag.struct_err(&format!("unknown input format: {}", s)).emit();
401 match matches.opt_str("w").as_ref().map(|s| &**s) {
402 Some("html") | None => {}
404 diag.struct_err(&format!("unknown output format: {}", s)).emit();
409 let index_page = matches.opt_str("index-page").map(|s| PathBuf::from(&s));
410 if let Some(ref index_page) = index_page {
411 if !index_page.is_file() {
412 diag.struct_err("option `--index-page` argument must be a file").emit();
417 let target = matches.opt_str("target").map(|target| {
418 if target.ends_with(".json") {
419 TargetTriple::TargetPath(PathBuf::from(target))
421 TargetTriple::TargetTriple(target)
425 let show_coverage = matches.opt_present("show-coverage");
426 let document_private = matches.opt_present("document-private-items");
428 let default_passes = if matches.opt_present("no-defaults") {
429 passes::DefaultPassOption::None
430 } else if show_coverage && document_private {
431 passes::DefaultPassOption::PrivateCoverage
432 } else if show_coverage {
433 passes::DefaultPassOption::Coverage
434 } else if document_private {
435 passes::DefaultPassOption::Private
437 passes::DefaultPassOption::Default
439 let manual_passes = matches.opt_strs("passes");
441 let crate_types = match parse_crate_types_from_list(matches.opt_strs("crate-type")) {
444 diag.struct_err(&format!("unknown crate type: {}", e)).emit();
449 let crate_name = matches.opt_str("crate-name");
450 let proc_macro_crate = crate_types.contains(&CrateType::ProcMacro);
451 let playground_url = matches.opt_str("playground-url");
452 let maybe_sysroot = matches.opt_str("sysroot").map(PathBuf::from);
453 let display_warnings = matches.opt_present("display-warnings");
454 let sort_modules_alphabetically = !matches.opt_present("sort-modules-by-appearance");
455 let resource_suffix = matches.opt_str("resource-suffix").unwrap_or_default();
456 let enable_minification = !matches.opt_present("disable-minification");
457 let markdown_no_toc = matches.opt_present("markdown-no-toc");
458 let markdown_css = matches.opt_strs("markdown-css");
459 let markdown_playground_url = matches.opt_str("markdown-playground-url");
460 let crate_version = matches.opt_str("crate-version");
461 let enable_index_page = matches.opt_present("enable-index-page") || index_page.is_some();
462 let static_root_path = matches.opt_str("static-root-path");
463 let generate_search_filter = !matches.opt_present("disable-per-crate-search");
464 let persist_doctests = matches.opt_str("persist-doctests").map(PathBuf::from);
465 let generate_redirect_pages = matches.opt_present("generate-redirect-pages");
466 let codegen_options_strs = matches.opt_strs("C");
467 let lib_strs = matches.opt_strs("L");
468 let extern_strs = matches.opt_strs("extern");
470 let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(matches, error_format);
483 codegen_options_strs,
499 render_options: RenderOptions {
504 sort_modules_alphabetically,
507 extern_html_root_urls,
515 markdown_playground_url,
516 generate_search_filter,
517 generate_redirect_pages,
522 /// Returns `true` if the file given as `self.input` is a Markdown file.
523 pub fn markdown_input(&self) -> bool {
524 self.input.extension()
525 .map_or(false, |e| e == "md" || e == "markdown")
529 /// Prints deprecation warnings for deprecated options
530 fn check_deprecated_options(matches: &getopts::Matches, diag: &errors::Handler) {
531 let deprecated_flags = [
538 for flag in deprecated_flags.iter() {
539 if matches.opt_present(flag) {
540 let mut err = diag.struct_warn(&format!("the '{}' flag is considered deprecated",
542 err.warn("please see https://github.com/rust-lang/rust/issues/44136");
544 if *flag == "no-defaults" {
545 err.help("you may want to use --document-private-items");
552 let removed_flags = [
557 for &flag in removed_flags.iter() {
558 if matches.opt_present(flag) {
559 diag.struct_warn(&format!("the '{}' flag no longer functions", flag))
560 .warn("see CVE-2018-1000622")
566 /// Extracts `--extern-html-root-url` arguments from `matches` and returns a map of crate names to
567 /// the given URLs. If an `--extern-html-root-url` argument was ill-formed, returns an error
568 /// describing the issue.
569 fn parse_extern_html_roots(
570 matches: &getopts::Matches,
571 ) -> Result<BTreeMap<String, String>, &'static str> {
572 let mut externs = BTreeMap::new();
573 for arg in &matches.opt_strs("extern-html-root-url") {
574 let mut parts = arg.splitn(2, '=');
575 let name = parts.next().ok_or("--extern-html-root-url must not be empty")?;
576 let url = parts.next().ok_or("--extern-html-root-url must be of the form name=url")?;
577 externs.insert(name.to_string(), url.to_string());
583 /// Extracts `--extern CRATE=PATH` arguments from `matches` and
584 /// returns a map mapping crate names to their paths or else an
586 // FIXME(eddyb) This shouldn't be duplicated with `rustc::session`.
587 fn parse_externs(matches: &getopts::Matches) -> Result<Externs, String> {
588 let mut externs: BTreeMap<_, ExternEntry> = BTreeMap::new();
589 for arg in &matches.opt_strs("extern") {
590 let mut parts = arg.splitn(2, '=');
591 let name = parts.next().ok_or("--extern value must not be empty".to_string())?;
592 let location = parts.next().map(|s| s.to_string());
593 if location.is_none() && !nightly_options::is_unstable_enabled(matches) {
594 return Err("the `-Z unstable-options` flag must also be passed to \
595 enable `--extern crate_name` without `=path`".to_string());
597 let name = name.to_string();
598 // For Rustdoc purposes, we can treat all externs as public
601 .locations.insert(location.clone());
603 Ok(Externs::new(externs))