1 use std::collections::BTreeMap;
4 use std::path::PathBuf;
8 use rustc::lint::Level;
10 use rustc::session::config::{CrateType, parse_crate_types_from_list};
11 use rustc::session::config::{CodegenOptions, DebuggingOptions, ErrorOutputType, Externs};
12 use rustc::session::config::{nightly_options, build_codegen_options, build_debugging_options,
13 get_cmd_lint_options, host_triple, ExternEntry};
14 use rustc::session::search_paths::SearchPath;
16 use rustc_target::spec::TargetTriple;
17 use syntax::edition::{Edition, DEFAULT_EDITION};
19 use crate::core::new_handler;
20 use crate::externalfiles::ExternalHtml;
22 use crate::html::{static_files};
23 use crate::html::markdown::{IdMap};
25 use crate::passes::{self, DefaultPassOption};
28 /// Configuration options for rustdoc.
31 // Basic options / Options passed directly to rustc
33 /// The crate root or Markdown file to load.
35 /// The name of the crate being documented.
36 pub crate_name: Option<String>,
37 /// Whether or not this is a proc-macro crate
38 pub proc_macro_crate: bool,
39 /// How to format errors and warnings.
40 pub error_format: ErrorOutputType,
41 /// Library search paths to hand to the compiler.
42 pub libs: Vec<SearchPath>,
43 /// Library search paths strings to hand to the compiler.
44 pub lib_strs: Vec<String>,
45 /// The list of external crates to link against.
47 /// The list of external crates strings to link against.
48 pub extern_strs: Vec<String>,
49 /// List of `cfg` flags to hand to the compiler. Always includes `rustdoc`.
50 pub cfgs: Vec<String>,
51 /// Codegen options to hand to the compiler.
52 pub codegen_options: CodegenOptions,
53 /// Codegen options strings to hand to the compiler.
54 pub codegen_options_strs: Vec<String>,
55 /// Debugging (`-Z`) options to pass to the compiler.
56 pub debugging_options: DebuggingOptions,
57 /// Debugging (`-Z`) options strings to pass to the compiler.
58 pub debugging_options_strs: Vec<String>,
59 /// The target used to compile the crate against.
60 pub target: TargetTriple,
61 /// Edition used when reading the crate. Defaults to "2015". Also used by default when
62 /// compiling doctests from the crate.
64 /// The path to the sysroot. Used during the compilation process.
65 pub maybe_sysroot: Option<PathBuf>,
66 /// Lint information passed over the command-line.
67 pub lint_opts: Vec<(String, Level)>,
68 /// Whether to ask rustc to describe the lints it knows. Practically speaking, this will not be
69 /// used, since we abort if we have no input file, but it's included for completeness.
70 pub describe_lints: bool,
71 /// What level to cap lints at.
72 pub lint_cap: Option<Level>,
74 // Options specific to running doctests
76 /// Whether we should run doctests instead of generating docs.
77 pub should_test: bool,
78 /// List of arguments to pass to the test harness, if running tests.
79 pub test_args: Vec<String>,
80 /// Optional path to persist the doctest executables to, defaults to a
81 /// temporary directory if not set.
82 pub persist_doctests: Option<PathBuf>,
83 /// Runtool to run doctests with
84 pub runtool: Option<String>,
85 /// Arguments to pass to the runtool
86 pub runtool_args: Vec<String>,
87 /// Whether to allow ignoring doctests on a per-target basis
88 /// For example, using ignore-foo to ignore running the doctest on any target that
89 /// contains "foo" as a substring
90 pub enable_per_target_ignores: bool,
92 /// The path to a rustc-like binary to build tests with. If not set, we
93 /// default to loading from $sysroot/bin/rustc.
94 pub test_builder: Option<PathBuf>,
96 // Options that affect the documentation process
98 /// The selected default set of passes to use.
100 /// Be aware: This option can come both from the CLI and from crate attributes!
101 pub default_passes: DefaultPassOption,
102 /// Any passes manually selected by the user.
104 /// Be aware: This option can come both from the CLI and from crate attributes!
105 pub manual_passes: Vec<String>,
106 /// Whether to display warnings during doc generation or while gathering doctests. By default,
107 /// all non-rustdoc-specific lints are allowed when generating docs.
108 pub display_warnings: bool,
109 /// Whether to run the `calculate-doc-coverage` pass, which counts the number of public items
110 /// with and without documentation.
111 pub show_coverage: bool,
113 // Options that alter generated documentation pages
115 /// Crate version to note on the sidebar of generated docs.
116 pub crate_version: Option<String>,
117 /// Collected options specific to outputting final pages.
118 pub render_options: RenderOptions,
121 impl fmt::Debug for Options {
122 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
123 struct FmtExterns<'a>(&'a Externs);
125 impl<'a> fmt::Debug for FmtExterns<'a> {
126 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
128 .entries(self.0.iter())
133 f.debug_struct("Options")
134 .field("input", &self.input)
135 .field("crate_name", &self.crate_name)
136 .field("proc_macro_crate", &self.proc_macro_crate)
137 .field("error_format", &self.error_format)
138 .field("libs", &self.libs)
139 .field("externs", &FmtExterns(&self.externs))
140 .field("cfgs", &self.cfgs)
141 .field("codegen_options", &"...")
142 .field("debugging_options", &"...")
143 .field("target", &self.target)
144 .field("edition", &self.edition)
145 .field("maybe_sysroot", &self.maybe_sysroot)
146 .field("lint_opts", &self.lint_opts)
147 .field("describe_lints", &self.describe_lints)
148 .field("lint_cap", &self.lint_cap)
149 .field("should_test", &self.should_test)
150 .field("test_args", &self.test_args)
151 .field("persist_doctests", &self.persist_doctests)
152 .field("default_passes", &self.default_passes)
153 .field("manual_passes", &self.manual_passes)
154 .field("display_warnings", &self.display_warnings)
155 .field("show_coverage", &self.show_coverage)
156 .field("crate_version", &self.crate_version)
157 .field("render_options", &self.render_options)
158 .field("runtool", &self.runtool)
159 .field("runtool_args", &self.runtool_args)
160 .field("enable-per-target-ignores", &self.enable_per_target_ignores)
165 /// Configuration options for the HTML page-creation process.
166 #[derive(Clone, Debug)]
167 pub struct RenderOptions {
168 /// Output directory to generate docs into. Defaults to `doc`.
170 /// External files to insert into generated pages.
171 pub external_html: ExternalHtml,
172 /// A pre-populated `IdMap` with the default headings and any headings added by Markdown files
173 /// processed by `external_html`.
175 /// If present, playground URL to use in the "Run" button added to code samples.
177 /// Be aware: This option can come both from the CLI and from crate attributes!
178 pub playground_url: Option<String>,
179 /// Whether to sort modules alphabetically on a module page instead of using declaration order.
180 /// `true` by default.
182 // FIXME(misdreavus): the flag name is `--sort-modules-by-appearance` but the meaning is
183 // inverted once read.
184 pub sort_modules_alphabetically: bool,
185 /// List of themes to extend the docs with. Original argument name is included to assist in
186 /// displaying errors if it fails a theme check.
187 pub themes: Vec<PathBuf>,
188 /// If present, CSS file that contains rules to add to the default CSS.
189 pub extension_css: Option<PathBuf>,
190 /// A map of crate names to the URL to use instead of querying the crate's `html_root_url`.
191 pub extern_html_root_urls: BTreeMap<String, String>,
192 /// If present, suffix added to CSS/JavaScript files when referencing them in generated pages.
193 pub resource_suffix: String,
194 /// Whether to run the static CSS/JavaScript through a minifier when outputting them. `true` by
197 // FIXME(misdreavus): the flag name is `--disable-minification` but the meaning is inverted
199 pub enable_minification: bool,
200 /// Whether to create an index page in the root of the output directory. If this is true but
201 /// `enable_index_page` is None, generate a static listing of crates instead.
202 pub enable_index_page: bool,
203 /// A file to use as the index page at the root of the output directory. Overrides
204 /// `enable_index_page` to be true if set.
205 pub index_page: Option<PathBuf>,
206 /// An optional path to use as the location of static files. If not set, uses combinations of
207 /// `../` to reach the documentation root.
208 pub static_root_path: Option<String>,
210 // Options specific to reading standalone Markdown files
212 /// Whether to generate a table of contents on the output file when reading a standalone
214 pub markdown_no_toc: bool,
215 /// Additional CSS files to link in pages generated from standalone Markdown files.
216 pub markdown_css: Vec<String>,
217 /// If present, playground URL to use in the "Run" button added to code samples generated from
218 /// standalone Markdown files. If not present, `playground_url` is used.
219 pub markdown_playground_url: Option<String>,
220 /// If false, the `select` element to have search filtering by crates on rendered docs
221 /// won't be generated.
222 pub generate_search_filter: bool,
223 /// Option (disabled by default) to generate files used by RLS and some other tools.
224 pub generate_redirect_pages: bool,
228 /// Parses the given command-line for options. If an error message or other early-return has
229 /// been printed, returns `Err` with the exit code.
230 pub fn from_matches(matches: &getopts::Matches) -> Result<Options, i32> {
231 // Check for unstable options.
232 nightly_options::check_nightly_options(&matches, &opts());
234 if matches.opt_present("h") || matches.opt_present("help") {
235 crate::usage("rustdoc");
237 } else if matches.opt_present("version") {
238 rustc_driver::version("rustdoc", &matches);
242 if matches.opt_strs("passes") == ["list"] {
243 println!("Available passes for running rustdoc:");
244 for pass in passes::PASSES {
245 println!("{:>20} - {}", pass.name, pass.description);
247 println!("\nDefault passes for rustdoc:");
248 for pass in passes::DEFAULT_PASSES {
249 println!("{:>20}", pass.name);
251 println!("\nPasses run with `--document-private-items`:");
252 for pass in passes::DEFAULT_PRIVATE_PASSES {
253 println!("{:>20}", pass.name);
256 if nightly_options::is_nightly_build() {
257 println!("\nPasses run with `--show-coverage`:");
258 for pass in passes::DEFAULT_COVERAGE_PASSES {
259 println!("{:>20}", pass.name);
261 println!("\nPasses run with `--show-coverage --document-private-items`:");
262 for pass in passes::PRIVATE_COVERAGE_PASSES {
263 println!("{:>20}", pass.name);
270 let color = session::config::parse_color(&matches);
271 let (json_rendered, _artifacts) = session::config::parse_json(&matches);
272 let error_format = session::config::parse_error_format(&matches, color, json_rendered);
274 let codegen_options = build_codegen_options(matches, error_format);
275 let debugging_options = build_debugging_options(matches, error_format);
277 let diag = new_handler(error_format,
279 debugging_options.treat_err_as_bug,
280 debugging_options.ui_testing);
282 // check for deprecated options
283 check_deprecated_options(&matches, &diag);
285 let to_check = matches.opt_strs("check-theme");
286 if !to_check.is_empty() {
287 let paths = theme::load_css_paths(static_files::themes::LIGHT.as_bytes());
290 println!("rustdoc: [check-theme] Starting tests! (Ignoring all other arguments)");
291 for theme_file in to_check.iter() {
292 print!(" - Checking \"{}\"...", theme_file);
293 let (success, differences) = theme::test_theme_against(theme_file, &paths, &diag);
294 if !differences.is_empty() || !success {
297 if !differences.is_empty() {
298 println!("{}", differences.join("\n"));
310 if matches.free.is_empty() {
311 diag.struct_err("missing file operand").emit();
314 if matches.free.len() > 1 {
315 diag.struct_err("too many file operands").emit();
318 let input = PathBuf::from(&matches.free[0]);
320 let libs = matches.opt_strs("L").iter()
321 .map(|s| SearchPath::from_cli_opt(s, error_format))
323 let externs = match parse_externs(&matches) {
326 diag.struct_err(&err).emit();
330 let extern_html_root_urls = match parse_extern_html_roots(&matches) {
333 diag.struct_err(err).emit();
338 let test_args = matches.opt_strs("test-args");
339 let test_args: Vec<String> = test_args.iter()
340 .flat_map(|s| s.split_whitespace())
341 .map(|s| s.to_string())
344 let should_test = matches.opt_present("test");
346 let output = matches.opt_str("o")
347 .map(|s| PathBuf::from(&s))
348 .unwrap_or_else(|| PathBuf::from("doc"));
349 let cfgs = matches.opt_strs("cfg");
351 let extension_css = matches.opt_str("e").map(|s| PathBuf::from(&s));
353 if let Some(ref p) = extension_css {
355 diag.struct_err("option --extend-css argument must be a file").emit();
360 let mut themes = Vec::new();
361 if matches.opt_present("theme") {
362 let paths = theme::load_css_paths(static_files::themes::LIGHT.as_bytes());
364 for (theme_file, theme_s) in matches.opt_strs("theme")
366 .map(|s| (PathBuf::from(&s), s.to_owned())) {
367 if !theme_file.is_file() {
368 diag.struct_err(&format!("invalid argument: \"{}\"", theme_s))
369 .help("arguments to --theme must be files")
373 if theme_file.extension() != Some(OsStr::new("css")) {
374 diag.struct_err(&format!("invalid argument: \"{}\"", theme_s))
378 let (success, ret) = theme::test_theme_against(&theme_file, &paths, &diag);
380 diag.struct_err(&format!("error loading theme file: \"{}\"", theme_s)).emit();
382 } else if !ret.is_empty() {
383 diag.struct_warn(&format!("theme file \"{}\" is missing CSS rules from the \
384 default theme", theme_s))
385 .warn("the theme may appear incorrect when loaded")
386 .help(&format!("to see what rules are missing, call `rustdoc \
387 --check-theme \"{}\"`", theme_s))
390 themes.push(theme_file);
394 let edition = if let Some(e) = matches.opt_str("edition") {
398 diag.struct_err("could not parse edition").emit();
406 let mut id_map = html::markdown::IdMap::new();
407 id_map.populate(html::render::initial_ids());
408 let external_html = match ExternalHtml::load(
409 &matches.opt_strs("html-in-header"),
410 &matches.opt_strs("html-before-content"),
411 &matches.opt_strs("html-after-content"),
412 &matches.opt_strs("markdown-before-content"),
413 &matches.opt_strs("markdown-after-content"),
414 &diag, &mut id_map, edition, &None) {
416 None => return Err(3),
419 match matches.opt_str("r").as_ref().map(|s| &**s) {
420 Some("rust") | None => {}
422 diag.struct_err(&format!("unknown input format: {}", s)).emit();
427 match matches.opt_str("w").as_ref().map(|s| &**s) {
428 Some("html") | None => {}
430 diag.struct_err(&format!("unknown output format: {}", s)).emit();
435 let index_page = matches.opt_str("index-page").map(|s| PathBuf::from(&s));
436 if let Some(ref index_page) = index_page {
437 if !index_page.is_file() {
438 diag.struct_err("option `--index-page` argument must be a file").emit();
443 let target = matches.opt_str("target").map_or(
444 TargetTriple::from_triple(host_triple()),
446 if target.ends_with(".json") {
447 TargetTriple::TargetPath(PathBuf::from(target))
449 TargetTriple::TargetTriple(target)
453 let show_coverage = matches.opt_present("show-coverage");
454 let document_private = matches.opt_present("document-private-items");
456 let default_passes = if matches.opt_present("no-defaults") {
457 passes::DefaultPassOption::None
458 } else if show_coverage && document_private {
459 passes::DefaultPassOption::PrivateCoverage
460 } else if show_coverage {
461 passes::DefaultPassOption::Coverage
462 } else if document_private {
463 passes::DefaultPassOption::Private
465 passes::DefaultPassOption::Default
467 let manual_passes = matches.opt_strs("passes");
469 let crate_types = match parse_crate_types_from_list(matches.opt_strs("crate-type")) {
472 diag.struct_err(&format!("unknown crate type: {}", e)).emit();
477 let crate_name = matches.opt_str("crate-name");
478 let proc_macro_crate = crate_types.contains(&CrateType::ProcMacro);
479 let playground_url = matches.opt_str("playground-url");
480 let maybe_sysroot = matches.opt_str("sysroot").map(PathBuf::from);
481 let display_warnings = matches.opt_present("display-warnings");
482 let sort_modules_alphabetically = !matches.opt_present("sort-modules-by-appearance");
483 let resource_suffix = matches.opt_str("resource-suffix").unwrap_or_default();
484 let enable_minification = !matches.opt_present("disable-minification");
485 let markdown_no_toc = matches.opt_present("markdown-no-toc");
486 let markdown_css = matches.opt_strs("markdown-css");
487 let markdown_playground_url = matches.opt_str("markdown-playground-url");
488 let crate_version = matches.opt_str("crate-version");
489 let enable_index_page = matches.opt_present("enable-index-page") || index_page.is_some();
490 let static_root_path = matches.opt_str("static-root-path");
491 let generate_search_filter = !matches.opt_present("disable-per-crate-search");
492 let persist_doctests = matches.opt_str("persist-doctests").map(PathBuf::from);
493 let generate_redirect_pages = matches.opt_present("generate-redirect-pages");
494 let test_builder = matches.opt_str("test-builder").map(PathBuf::from);
495 let codegen_options_strs = matches.opt_strs("C");
496 let debugging_options_strs = matches.opt_strs("Z");
497 let lib_strs = matches.opt_strs("L");
498 let extern_strs = matches.opt_strs("extern");
499 let runtool = matches.opt_str("runtool");
500 let runtool_args = matches.opt_strs("runtool-arg");
501 let enable_per_target_ignores = matches.opt_present("enable-per-target-ignores");
503 let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(matches, error_format);
516 codegen_options_strs,
518 debugging_options_strs,
535 enable_per_target_ignores,
537 render_options: RenderOptions {
542 sort_modules_alphabetically,
545 extern_html_root_urls,
553 markdown_playground_url,
554 generate_search_filter,
555 generate_redirect_pages,
560 /// Returns `true` if the file given as `self.input` is a Markdown file.
561 pub fn markdown_input(&self) -> bool {
562 self.input.extension()
563 .map_or(false, |e| e == "md" || e == "markdown")
567 /// Prints deprecation warnings for deprecated options
568 fn check_deprecated_options(matches: &getopts::Matches, diag: &errors::Handler) {
569 let deprecated_flags = [
576 for flag in deprecated_flags.iter() {
577 if matches.opt_present(flag) {
578 let mut err = diag.struct_warn(&format!("the '{}' flag is considered deprecated",
580 err.warn("please see https://github.com/rust-lang/rust/issues/44136");
582 if *flag == "no-defaults" {
583 err.help("you may want to use --document-private-items");
590 let removed_flags = [
595 for &flag in removed_flags.iter() {
596 if matches.opt_present(flag) {
597 diag.struct_warn(&format!("the '{}' flag no longer functions", flag))
598 .warn("see CVE-2018-1000622")
604 /// Extracts `--extern-html-root-url` arguments from `matches` and returns a map of crate names to
605 /// the given URLs. If an `--extern-html-root-url` argument was ill-formed, returns an error
606 /// describing the issue.
607 fn parse_extern_html_roots(
608 matches: &getopts::Matches,
609 ) -> Result<BTreeMap<String, String>, &'static str> {
610 let mut externs = BTreeMap::new();
611 for arg in &matches.opt_strs("extern-html-root-url") {
612 let mut parts = arg.splitn(2, '=');
613 let name = parts.next().ok_or("--extern-html-root-url must not be empty")?;
614 let url = parts.next().ok_or("--extern-html-root-url must be of the form name=url")?;
615 externs.insert(name.to_string(), url.to_string());
621 /// Extracts `--extern CRATE=PATH` arguments from `matches` and
622 /// returns a map mapping crate names to their paths or else an
624 /// Also handles `--extern-private` which for the purposes of rustdoc
625 /// we can treat as `--extern`
626 // FIXME(eddyb) This shouldn't be duplicated with `rustc::session`.
627 fn parse_externs(matches: &getopts::Matches) -> Result<Externs, String> {
628 let mut externs: BTreeMap<_, ExternEntry> = BTreeMap::new();
629 for arg in matches.opt_strs("extern").iter().chain(matches.opt_strs("extern-private").iter()) {
630 let mut parts = arg.splitn(2, '=');
631 let name = parts.next().ok_or("--extern value must not be empty".to_string())?;
632 let location = parts.next().map(|s| s.to_string());
633 let name = name.to_string();
634 // For Rustdoc purposes, we can treat all externs as public
637 .locations.insert(location.clone());
639 Ok(Externs::new(externs))