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, host_triple, 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: 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>,
80 /// Runtool to run doctests with
81 pub runtool: Option<String>,
82 /// Arguments to pass to the runtool
83 pub runtool_args: Vec<String>,
84 /// Whether to allow ignoring doctests on a per-target basis
85 /// For example, using ignore-foo to ignore running the doctest on any target that
86 /// contains "foo" as a substring
87 pub enable_per_target_ignores: bool,
89 /// The path to a rustc-like binary to build tests with. If not set, we
90 /// default to loading from $sysroot/bin/rustc.
91 pub test_builder: Option<PathBuf>,
93 // Options that affect the documentation process
95 /// The selected default set of passes to use.
97 /// Be aware: This option can come both from the CLI and from crate attributes!
98 pub default_passes: DefaultPassOption,
99 /// Any passes manually selected by the user.
101 /// Be aware: This option can come both from the CLI and from crate attributes!
102 pub manual_passes: Vec<String>,
103 /// Whether to display warnings during doc generation or while gathering doctests. By default,
104 /// all non-rustdoc-specific lints are allowed when generating docs.
105 pub display_warnings: bool,
106 /// Whether to run the `calculate-doc-coverage` pass, which counts the number of public items
107 /// with and without documentation.
108 pub show_coverage: bool,
110 // Options that alter generated documentation pages
112 /// Crate version to note on the sidebar of generated docs.
113 pub crate_version: Option<String>,
114 /// Collected options specific to outputting final pages.
115 pub render_options: RenderOptions,
118 impl fmt::Debug for Options {
119 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
120 struct FmtExterns<'a>(&'a Externs);
122 impl<'a> fmt::Debug for FmtExterns<'a> {
123 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
125 .entries(self.0.iter())
130 f.debug_struct("Options")
131 .field("input", &self.input)
132 .field("crate_name", &self.crate_name)
133 .field("proc_macro_crate", &self.proc_macro_crate)
134 .field("error_format", &self.error_format)
135 .field("libs", &self.libs)
136 .field("externs", &FmtExterns(&self.externs))
137 .field("cfgs", &self.cfgs)
138 .field("codegen_options", &"...")
139 .field("debugging_options", &"...")
140 .field("target", &self.target)
141 .field("edition", &self.edition)
142 .field("maybe_sysroot", &self.maybe_sysroot)
143 .field("lint_opts", &self.lint_opts)
144 .field("describe_lints", &self.describe_lints)
145 .field("lint_cap", &self.lint_cap)
146 .field("should_test", &self.should_test)
147 .field("test_args", &self.test_args)
148 .field("persist_doctests", &self.persist_doctests)
149 .field("default_passes", &self.default_passes)
150 .field("manual_passes", &self.manual_passes)
151 .field("display_warnings", &self.display_warnings)
152 .field("show_coverage", &self.show_coverage)
153 .field("crate_version", &self.crate_version)
154 .field("render_options", &self.render_options)
155 .field("runtool", &self.runtool)
156 .field("runtool_args", &self.runtool_args)
157 .field("enable-per-target-ignores", &self.enable_per_target_ignores)
162 /// Configuration options for the HTML page-creation process.
163 #[derive(Clone, Debug)]
164 pub struct RenderOptions {
165 /// Output directory to generate docs into. Defaults to `doc`.
167 /// External files to insert into generated pages.
168 pub external_html: ExternalHtml,
169 /// A pre-populated `IdMap` with the default headings and any headings added by Markdown files
170 /// processed by `external_html`.
172 /// If present, playground URL to use in the "Run" button added to code samples.
174 /// Be aware: This option can come both from the CLI and from crate attributes!
175 pub playground_url: Option<String>,
176 /// Whether to sort modules alphabetically on a module page instead of using declaration order.
177 /// `true` by default.
179 // FIXME(misdreavus): the flag name is `--sort-modules-by-appearance` but the meaning is
180 // inverted once read.
181 pub sort_modules_alphabetically: bool,
182 /// List of themes to extend the docs with. Original argument name is included to assist in
183 /// displaying errors if it fails a theme check.
184 pub themes: Vec<PathBuf>,
185 /// If present, CSS file that contains rules to add to the default CSS.
186 pub extension_css: Option<PathBuf>,
187 /// A map of crate names to the URL to use instead of querying the crate's `html_root_url`.
188 pub extern_html_root_urls: BTreeMap<String, String>,
189 /// If present, suffix added to CSS/JavaScript files when referencing them in generated pages.
190 pub resource_suffix: String,
191 /// Whether to run the static CSS/JavaScript through a minifier when outputting them. `true` by
194 // FIXME(misdreavus): the flag name is `--disable-minification` but the meaning is inverted
196 pub enable_minification: bool,
197 /// Whether to create an index page in the root of the output directory. If this is true but
198 /// `enable_index_page` is None, generate a static listing of crates instead.
199 pub enable_index_page: bool,
200 /// A file to use as the index page at the root of the output directory. Overrides
201 /// `enable_index_page` to be true if set.
202 pub index_page: Option<PathBuf>,
203 /// An optional path to use as the location of static files. If not set, uses combinations of
204 /// `../` to reach the documentation root.
205 pub static_root_path: Option<String>,
207 // Options specific to reading standalone Markdown files
209 /// Whether to generate a table of contents on the output file when reading a standalone
211 pub markdown_no_toc: bool,
212 /// Additional CSS files to link in pages generated from standalone Markdown files.
213 pub markdown_css: Vec<String>,
214 /// If present, playground URL to use in the "Run" button added to code samples generated from
215 /// standalone Markdown files. If not present, `playground_url` is used.
216 pub markdown_playground_url: Option<String>,
217 /// If false, the `select` element to have search filtering by crates on rendered docs
218 /// won't be generated.
219 pub generate_search_filter: bool,
220 /// Option (disabled by default) to generate files used by RLS and some other tools.
221 pub generate_redirect_pages: bool,
225 /// Parses the given command-line for options. If an error message or other early-return has
226 /// been printed, returns `Err` with the exit code.
227 pub fn from_matches(matches: &getopts::Matches) -> Result<Options, i32> {
228 // Check for unstable options.
229 nightly_options::check_nightly_options(&matches, &opts());
231 if matches.opt_present("h") || matches.opt_present("help") {
232 crate::usage("rustdoc");
234 } else if matches.opt_present("version") {
235 rustc_driver::version("rustdoc", &matches);
239 if matches.opt_strs("passes") == ["list"] {
240 println!("Available passes for running rustdoc:");
241 for pass in passes::PASSES {
242 println!("{:>20} - {}", pass.name, pass.description);
244 println!("\nDefault passes for rustdoc:");
245 for pass in passes::DEFAULT_PASSES {
246 println!("{:>20}", pass.name);
248 println!("\nPasses run with `--document-private-items`:");
249 for pass in passes::DEFAULT_PRIVATE_PASSES {
250 println!("{:>20}", pass.name);
253 if nightly_options::is_nightly_build() {
254 println!("\nPasses run with `--show-coverage`:");
255 for pass in passes::DEFAULT_COVERAGE_PASSES {
256 println!("{:>20}", pass.name);
258 println!("\nPasses run with `--show-coverage --document-private-items`:");
259 for pass in passes::PRIVATE_COVERAGE_PASSES {
260 println!("{:>20}", pass.name);
267 let color = session::config::parse_color(&matches);
268 let (json_rendered, _artifacts) = session::config::parse_json(&matches);
269 let error_format = session::config::parse_error_format(&matches, color, json_rendered);
271 let codegen_options = build_codegen_options(matches, error_format);
272 let debugging_options = build_debugging_options(matches, error_format);
274 let diag = new_handler(error_format,
276 debugging_options.treat_err_as_bug,
277 debugging_options.ui_testing);
279 // check for deprecated options
280 check_deprecated_options(&matches, &diag);
282 let to_check = matches.opt_strs("theme-checker");
283 if !to_check.is_empty() {
284 let paths = theme::load_css_paths(static_files::themes::LIGHT.as_bytes());
287 println!("rustdoc: [theme-checker] Starting tests!");
288 for theme_file in to_check.iter() {
289 print!(" - Checking \"{}\"...", theme_file);
290 let (success, differences) = theme::test_theme_against(theme_file, &paths, &diag);
291 if !differences.is_empty() || !success {
294 if !differences.is_empty() {
295 println!("{}", differences.join("\n"));
307 if matches.free.is_empty() {
308 diag.struct_err("missing file operand").emit();
311 if matches.free.len() > 1 {
312 diag.struct_err("too many file operands").emit();
315 let input = PathBuf::from(&matches.free[0]);
317 let libs = matches.opt_strs("L").iter()
318 .map(|s| SearchPath::from_cli_opt(s, error_format))
320 let externs = match parse_externs(&matches) {
323 diag.struct_err(&err).emit();
327 let extern_html_root_urls = match parse_extern_html_roots(&matches) {
330 diag.struct_err(err).emit();
335 let test_args = matches.opt_strs("test-args");
336 let test_args: Vec<String> = test_args.iter()
337 .flat_map(|s| s.split_whitespace())
338 .map(|s| s.to_string())
341 let should_test = matches.opt_present("test");
343 let output = matches.opt_str("o")
344 .map(|s| PathBuf::from(&s))
345 .unwrap_or_else(|| PathBuf::from("doc"));
346 let cfgs = matches.opt_strs("cfg");
348 let extension_css = matches.opt_str("e").map(|s| PathBuf::from(&s));
350 if let Some(ref p) = extension_css {
352 diag.struct_err("option --extend-css argument must be a file").emit();
357 let mut themes = Vec::new();
358 if matches.opt_present("themes") {
359 let paths = theme::load_css_paths(static_files::themes::LIGHT.as_bytes());
361 for (theme_file, theme_s) in matches.opt_strs("themes")
363 .map(|s| (PathBuf::from(&s), s.to_owned())) {
364 if !theme_file.is_file() {
365 diag.struct_err("option --themes arguments must all be files").emit();
368 let (success, ret) = theme::test_theme_against(&theme_file, &paths, &diag);
369 if !success || !ret.is_empty() {
370 diag.struct_err(&format!("invalid theme: \"{}\"", theme_s))
371 .help("check what's wrong with the --theme-checker option")
375 themes.push(theme_file);
379 let edition = if let Some(e) = matches.opt_str("edition") {
383 diag.struct_err("could not parse edition").emit();
391 let mut id_map = html::markdown::IdMap::new();
392 id_map.populate(html::render::initial_ids());
393 let external_html = match ExternalHtml::load(
394 &matches.opt_strs("html-in-header"),
395 &matches.opt_strs("html-before-content"),
396 &matches.opt_strs("html-after-content"),
397 &matches.opt_strs("markdown-before-content"),
398 &matches.opt_strs("markdown-after-content"),
399 &diag, &mut id_map, edition, &None) {
401 None => return Err(3),
404 match matches.opt_str("r").as_ref().map(|s| &**s) {
405 Some("rust") | None => {}
407 diag.struct_err(&format!("unknown input format: {}", s)).emit();
412 match matches.opt_str("w").as_ref().map(|s| &**s) {
413 Some("html") | None => {}
415 diag.struct_err(&format!("unknown output format: {}", s)).emit();
420 let index_page = matches.opt_str("index-page").map(|s| PathBuf::from(&s));
421 if let Some(ref index_page) = index_page {
422 if !index_page.is_file() {
423 diag.struct_err("option `--index-page` argument must be a file").emit();
428 let target = matches.opt_str("target").map_or(
429 TargetTriple::from_triple(host_triple()),
431 if target.ends_with(".json") {
432 TargetTriple::TargetPath(PathBuf::from(target))
434 TargetTriple::TargetTriple(target)
438 let show_coverage = matches.opt_present("show-coverage");
439 let document_private = matches.opt_present("document-private-items");
441 let default_passes = if matches.opt_present("no-defaults") {
442 passes::DefaultPassOption::None
443 } else if show_coverage && document_private {
444 passes::DefaultPassOption::PrivateCoverage
445 } else if show_coverage {
446 passes::DefaultPassOption::Coverage
447 } else if document_private {
448 passes::DefaultPassOption::Private
450 passes::DefaultPassOption::Default
452 let manual_passes = matches.opt_strs("passes");
454 let crate_types = match parse_crate_types_from_list(matches.opt_strs("crate-type")) {
457 diag.struct_err(&format!("unknown crate type: {}", e)).emit();
462 let crate_name = matches.opt_str("crate-name");
463 let proc_macro_crate = crate_types.contains(&CrateType::ProcMacro);
464 let playground_url = matches.opt_str("playground-url");
465 let maybe_sysroot = matches.opt_str("sysroot").map(PathBuf::from);
466 let display_warnings = matches.opt_present("display-warnings");
467 let sort_modules_alphabetically = !matches.opt_present("sort-modules-by-appearance");
468 let resource_suffix = matches.opt_str("resource-suffix").unwrap_or_default();
469 let enable_minification = !matches.opt_present("disable-minification");
470 let markdown_no_toc = matches.opt_present("markdown-no-toc");
471 let markdown_css = matches.opt_strs("markdown-css");
472 let markdown_playground_url = matches.opt_str("markdown-playground-url");
473 let crate_version = matches.opt_str("crate-version");
474 let enable_index_page = matches.opt_present("enable-index-page") || index_page.is_some();
475 let static_root_path = matches.opt_str("static-root-path");
476 let generate_search_filter = !matches.opt_present("disable-per-crate-search");
477 let persist_doctests = matches.opt_str("persist-doctests").map(PathBuf::from);
478 let generate_redirect_pages = matches.opt_present("generate-redirect-pages");
479 let test_builder = matches.opt_str("test-builder").map(PathBuf::from);
480 let codegen_options_strs = matches.opt_strs("C");
481 let lib_strs = matches.opt_strs("L");
482 let extern_strs = matches.opt_strs("extern");
483 let runtool = matches.opt_str("runtool");
484 let runtool_args = matches.opt_strs("runtool-arg");
485 let enable_per_target_ignores = matches.opt_present("enable-per-target-ignores");
487 let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(matches, error_format);
500 codegen_options_strs,
518 enable_per_target_ignores,
520 render_options: RenderOptions {
525 sort_modules_alphabetically,
528 extern_html_root_urls,
536 markdown_playground_url,
537 generate_search_filter,
538 generate_redirect_pages,
543 /// Returns `true` if the file given as `self.input` is a Markdown file.
544 pub fn markdown_input(&self) -> bool {
545 self.input.extension()
546 .map_or(false, |e| e == "md" || e == "markdown")
550 /// Prints deprecation warnings for deprecated options
551 fn check_deprecated_options(matches: &getopts::Matches, diag: &errors::Handler) {
552 let deprecated_flags = [
559 for flag in deprecated_flags.iter() {
560 if matches.opt_present(flag) {
561 let mut err = diag.struct_warn(&format!("the '{}' flag is considered deprecated",
563 err.warn("please see https://github.com/rust-lang/rust/issues/44136");
565 if *flag == "no-defaults" {
566 err.help("you may want to use --document-private-items");
573 let removed_flags = [
578 for &flag in removed_flags.iter() {
579 if matches.opt_present(flag) {
580 diag.struct_warn(&format!("the '{}' flag no longer functions", flag))
581 .warn("see CVE-2018-1000622")
587 /// Extracts `--extern-html-root-url` arguments from `matches` and returns a map of crate names to
588 /// the given URLs. If an `--extern-html-root-url` argument was ill-formed, returns an error
589 /// describing the issue.
590 fn parse_extern_html_roots(
591 matches: &getopts::Matches,
592 ) -> Result<BTreeMap<String, String>, &'static str> {
593 let mut externs = BTreeMap::new();
594 for arg in &matches.opt_strs("extern-html-root-url") {
595 let mut parts = arg.splitn(2, '=');
596 let name = parts.next().ok_or("--extern-html-root-url must not be empty")?;
597 let url = parts.next().ok_or("--extern-html-root-url must be of the form name=url")?;
598 externs.insert(name.to_string(), url.to_string());
604 /// Extracts `--extern CRATE=PATH` arguments from `matches` and
605 /// returns a map mapping crate names to their paths or else an
607 // FIXME(eddyb) This shouldn't be duplicated with `rustc::session`.
608 fn parse_externs(matches: &getopts::Matches) -> Result<Externs, String> {
609 let mut externs: BTreeMap<_, ExternEntry> = BTreeMap::new();
610 for arg in &matches.opt_strs("extern") {
611 let mut parts = arg.splitn(2, '=');
612 let name = parts.next().ok_or("--extern value must not be empty".to_string())?;
613 let location = parts.next().map(|s| s.to_string());
614 if location.is_none() && !nightly_options::is_unstable_enabled(matches) {
615 return Err("the `-Z unstable-options` flag must also be passed to \
616 enable `--extern crate_name` without `=path`".to_string());
618 let name = name.to_string();
619 // For Rustdoc purposes, we can treat all externs as public
622 .locations.insert(location.clone());
624 Ok(Externs::new(externs))