]> git.lizzy.rs Git - rust.git/blobdiff - src/librustdoc/lib.rs
parse command-line into a central Options struct
[rust.git] / src / librustdoc / lib.rs
index e1cb96edd482a4c0b68254e7c9438db7b3942de3..a9ed5386f61d8954daf25049b5bb771d1236ce01 100644 (file)
 
 extern crate serialize as rustc_serialize; // used by deriving
 
-use errors::ColorConfig;
-
-use std::collections::{BTreeMap, BTreeSet};
 use std::default::Default;
 use std::env;
 use std::panic;
-use std::path::{Path, PathBuf};
+use std::path::PathBuf;
 use std::process;
 use std::sync::mpsc::channel;
 
 use syntax::edition::Edition;
-use externalfiles::ExternalHtml;
 use rustc::session::{early_warn, early_error};
 use rustc::session::search_paths::SearchPaths;
 use rustc::session::config::{ErrorOutputType, RustcOptGroup, Externs, CodegenOptions};
-use rustc::session::config::{nightly_options, build_codegen_options};
 use rustc_target::spec::TargetTriple;
 use rustc::session::config::get_cmd_lint_options;
 
@@ -76,6 +71,7 @@
 mod externalfiles;
 
 mod clean;
+mod config;
 mod core;
 mod doctree;
 mod fold;
@@ -367,250 +363,55 @@ fn main_args(args: &[String]) -> isize {
             early_error(ErrorOutputType::default(), &err.to_string());
         }
     };
-    // Check for unstable options.
-    nightly_options::check_nightly_options(&matches, &opts());
-
-    if matches.opt_present("h") || matches.opt_present("help") {
-        usage("rustdoc");
-        return 0;
-    } else if matches.opt_present("version") {
-        rustc_driver::version("rustdoc", &matches);
-        return 0;
-    }
-
-    if matches.opt_strs("passes") == ["list"] {
-        println!("Available passes for running rustdoc:");
-        for pass in passes::PASSES {
-            println!("{:>20} - {}", pass.name(), pass.description());
-        }
-        println!("\nDefault passes for rustdoc:");
-        for &name in passes::DEFAULT_PASSES {
-            println!("{:>20}", name);
-        }
-        println!("\nPasses run with `--document-private-items`:");
-        for &name in passes::DEFAULT_PRIVATE_PASSES {
-            println!("{:>20}", name);
-        }
-        return 0;
-    }
-
-    let color = match matches.opt_str("color").as_ref().map(|s| &s[..]) {
-        Some("auto") => ColorConfig::Auto,
-        Some("always") => ColorConfig::Always,
-        Some("never") => ColorConfig::Never,
-        None => ColorConfig::Auto,
-        Some(arg) => {
-            early_error(ErrorOutputType::default(),
-                        &format!("argument for --color must be `auto`, `always` or `never` \
-                                  (instead was `{}`)", arg));
-        }
-    };
-    let error_format = match matches.opt_str("error-format").as_ref().map(|s| &s[..]) {
-        Some("human") => ErrorOutputType::HumanReadable(color),
-        Some("json") => ErrorOutputType::Json(false),
-        Some("pretty-json") => ErrorOutputType::Json(true),
-        Some("short") => ErrorOutputType::Short(color),
-        None => ErrorOutputType::HumanReadable(color),
-        Some(arg) => {
-            early_error(ErrorOutputType::default(),
-                        &format!("argument for --error-format must be `human`, `json` or \
-                                  `short` (instead was `{}`)", arg));
-        }
+    let options = match config::Options::from_matches(&matches) {
+        Ok(opts) => opts,
+        Err(code) => return code,
     };
-    let treat_err_as_bug = matches.opt_strs("Z").iter().any(|x| {
-        *x == "treat-err-as-bug"
-    });
-    let ui_testing = matches.opt_strs("Z").iter().any(|x| {
-        *x == "ui-testing"
-    });
-
-    let diag = core::new_handler(error_format, None, treat_err_as_bug, ui_testing);
-
-    // check for deprecated options
-    check_deprecated_options(&matches, &diag);
-
-    let to_check = matches.opt_strs("theme-checker");
-    if !to_check.is_empty() {
-        let paths = theme::load_css_paths(include_bytes!("html/static/themes/light.css"));
-        let mut errors = 0;
-
-        println!("rustdoc: [theme-checker] Starting tests!");
-        for theme_file in to_check.iter() {
-            print!(" - Checking \"{}\"...", theme_file);
-            let (success, differences) = theme::test_theme_against(theme_file, &paths, &diag);
-            if !differences.is_empty() || !success {
-                println!(" FAILED");
-                errors += 1;
-                if !differences.is_empty() {
-                    println!("{}", differences.join("\n"));
-                }
-            } else {
-                println!(" OK");
-            }
-        }
-        if errors != 0 {
-            return 1;
-        }
-        return 0;
-    }
-
-    if matches.free.is_empty() {
-        diag.struct_err("missing file operand").emit();
-        return 1;
-    }
-    if matches.free.len() > 1 {
-        diag.struct_err("too many file operands").emit();
-        return 1;
-    }
-    let input = matches.free[0].clone();
-
-    let mut libs = SearchPaths::new();
-    for s in &matches.opt_strs("L") {
-        libs.add_path(s, error_format);
-    }
-    let externs = match parse_externs(&matches) {
-        Ok(ex) => ex,
-        Err(err) => {
-            diag.struct_err(&err).emit();
-            return 1;
-        }
-    };
-    let extern_urls = match parse_extern_html_roots(&matches) {
-        Ok(ex) => ex,
-        Err(err) => {
-            diag.struct_err(err).emit();
-            return 1;
-        }
-    };
-
-    let test_args = matches.opt_strs("test-args");
-    let test_args: Vec<String> = test_args.iter()
-                                          .flat_map(|s| s.split_whitespace())
-                                          .map(|s| s.to_string())
-                                          .collect();
 
-    let should_test = matches.opt_present("test");
-    let markdown_input = Path::new(&input).extension()
-        .map_or(false, |e| e == "md" || e == "markdown");
+    let diag = core::new_handler(options.error_format,
+                                 None,
+                                 options.debugging_options.treat_err_as_bug,
+                                 options.debugging_options.ui_testing);
 
-    let output = matches.opt_str("o").map(|s| PathBuf::from(&s));
-    let css_file_extension = matches.opt_str("e").map(|s| PathBuf::from(&s));
-    let mut cfgs = matches.opt_strs("cfg");
-    cfgs.push("rustdoc".to_string());
-
-    if let Some(ref p) = css_file_extension {
-        if !p.is_file() {
-            diag.struct_err("option --extend-css argument must be a file").emit();
-            return 1;
-        }
-    }
-
-    let mut themes = Vec::new();
-    if matches.opt_present("themes") {
-        let paths = theme::load_css_paths(include_bytes!("html/static/themes/light.css"));
-
-        for (theme_file, theme_s) in matches.opt_strs("themes")
-                                            .iter()
-                                            .map(|s| (PathBuf::from(&s), s.to_owned())) {
-            if !theme_file.is_file() {
-                diag.struct_err("option --themes arguments must all be files").emit();
-                return 1;
-            }
-            let (success, ret) = theme::test_theme_against(&theme_file, &paths, &diag);
-            if !success || !ret.is_empty() {
-                diag.struct_err(&format!("invalid theme: \"{}\"", theme_s))
-                    .help("check what's wrong with the --theme-checker option")
-                    .emit();
-                return 1;
-            }
-            themes.push(theme_file);
-        }
-    }
-
-    let mut id_map = html::markdown::IdMap::new();
-    id_map.populate(html::render::initial_ids());
-    let external_html = match ExternalHtml::load(
-            &matches.opt_strs("html-in-header"),
-            &matches.opt_strs("html-before-content"),
-            &matches.opt_strs("html-after-content"),
-            &matches.opt_strs("markdown-before-content"),
-            &matches.opt_strs("markdown-after-content"), &diag, &mut id_map) {
-        Some(eh) => eh,
-        None => return 3,
-    };
-    let crate_name = matches.opt_str("crate-name");
-    let playground_url = matches.opt_str("playground-url");
-    let maybe_sysroot = matches.opt_str("sysroot").map(PathBuf::from);
-    let display_warnings = matches.opt_present("display-warnings");
-    let linker = matches.opt_str("linker").map(PathBuf::from);
-    let sort_modules_alphabetically = !matches.opt_present("sort-modules-by-appearance");
-    let resource_suffix = matches.opt_str("resource-suffix");
-    let index_page = matches.opt_str("index-page").map(|s| PathBuf::from(&s));
-    let enable_index_page = matches.opt_present("enable-index-page") || index_page.is_some();
-    let enable_minification = !matches.opt_present("disable-minification");
-
-    let edition = matches.opt_str("edition").unwrap_or("2015".to_string());
-    let edition = match edition.parse() {
-        Ok(e) => e,
-        Err(_) => {
-            diag.struct_err("could not parse edition").emit();
-            return 1;
-        }
-    };
-    if let Some(ref index_page) = index_page {
-        if !index_page.is_file() {
-            diag.struct_err("option `--index-page` argument must be a file").emit();
-            return 1;
-        }
-    }
-
-    let cg = build_codegen_options(&matches, ErrorOutputType::default());
-
-    match (should_test, markdown_input) {
+    match (options.should_test, options.markdown_input()) {
         (true, true) => {
-            return markdown::test(&input, cfgs, libs, externs, test_args, maybe_sysroot,
-                                  display_warnings, linker, edition, cg, &diag)
+            return markdown::test(&options.input, options.cfgs, options.libs, options.externs,
+                                  options.test_args, options.maybe_sysroot,
+                                  options.display_warnings, options.linker, options.edition,
+                                  options.codegen_options, &diag)
         }
         (true, false) => {
-            return test::run(Path::new(&input), cfgs, libs, externs, test_args, crate_name,
-                             maybe_sysroot, display_warnings, linker, edition, cg)
+            return test::run(&options.input, options.cfgs, options.libs, options.externs,
+                             options.test_args, options.crate_name, options.maybe_sysroot,
+                             options.display_warnings, options.linker, options.edition,
+                             options.codegen_options)
         }
-        (false, true) => return markdown::render(Path::new(&input),
-                                                 output.unwrap_or(PathBuf::from("doc")),
-                                                 &matches, &external_html,
-                                                 !matches.opt_present("markdown-no-toc"), &diag),
+        (false, true) => return markdown::render(&options.input, options.output,
+                                                 &matches,
+                                                 &options.external_html,
+                                                 !options.markdown_no_toc, &diag),
         (false, false) => {}
     }
 
-    let output_format = matches.opt_str("w");
-
-    let res = acquire_input(PathBuf::from(input), externs, edition, cg, matches, error_format,
+    let res = acquire_input(options.input.clone(), options.externs.clone(), options.edition,
+                            options.codegen_options.clone(), matches, options.error_format,
                             move |out, matches| {
         let Output { krate, passes, renderinfo } = out;
-        let diag = core::new_handler(error_format, None, treat_err_as_bug, ui_testing);
         info!("going to format");
-        match output_format.as_ref().map(|s| &**s) {
-            Some("html") | None => {
-                html::render::run(krate, extern_urls, &external_html, playground_url,
-                                  output.unwrap_or(PathBuf::from("doc")),
-                                  resource_suffix.unwrap_or(String::new()),
-                                  passes.into_iter().collect(),
-                                  css_file_extension,
-                                  renderinfo,
-                                  sort_modules_alphabetically,
-                                  themes,
-                                  enable_minification, id_map,
-                                  enable_index_page, index_page,
-                                  &matches,
-                                  &diag)
-                    .expect("failed to generate documentation");
-                0
-            }
-            Some(s) => {
-                diag.struct_err(&format!("unknown output format: {}", s)).emit();
-                1
-            }
-        }
+        html::render::run(krate, options.extern_html_root_urls, &options.external_html, options.playground_url,
+                          options.output,
+                          options.resource_suffix,
+                          passes.into_iter().collect(),
+                          options.extension_css,
+                          renderinfo,
+                          options.sort_modules_alphabetically,
+                          options.themes,
+                          options.enable_minification, options.id_map,
+                          options.enable_index_page, options.index_page,
+                          &matches,
+                          &diag)
+            .expect("failed to generate documentation");
+        0
     });
     res.unwrap_or_else(|s| {
         diag.struct_err(&format!("input error: {}", s)).emit();
@@ -636,43 +437,6 @@ fn acquire_input<R, F>(input: PathBuf,
     }
 }
 
-/// Extracts `--extern CRATE=PATH` arguments from `matches` and
-/// returns a map mapping crate names to their paths or else an
-/// error message.
-// FIXME(eddyb) This shouldn't be duplicated with `rustc::session`.
-fn parse_externs(matches: &getopts::Matches) -> Result<Externs, String> {
-    let mut externs: BTreeMap<_, BTreeSet<_>> = BTreeMap::new();
-    for arg in &matches.opt_strs("extern") {
-        let mut parts = arg.splitn(2, '=');
-        let name = parts.next().ok_or("--extern value must not be empty".to_string())?;
-        let location = parts.next().map(|s| s.to_string());
-        if location.is_none() && !nightly_options::is_unstable_enabled(matches) {
-            return Err("the `-Z unstable-options` flag must also be passed to \
-                        enable `--extern crate_name` without `=path`".to_string());
-        }
-        let name = name.to_string();
-        externs.entry(name).or_default().insert(location);
-    }
-    Ok(Externs::new(externs))
-}
-
-/// Extracts `--extern-html-root-url` arguments from `matches` and returns a map of crate names to
-/// the given URLs. If an `--extern-html-root-url` argument was ill-formed, returns an error
-/// describing the issue.
-fn parse_extern_html_roots(matches: &getopts::Matches)
-    -> Result<BTreeMap<String, String>, &'static str>
-{
-    let mut externs = BTreeMap::new();
-    for arg in &matches.opt_strs("extern-html-root-url") {
-        let mut parts = arg.splitn(2, '=');
-        let name = parts.next().ok_or("--extern-html-root-url must not be empty")?;
-        let url = parts.next().ok_or("--extern-html-root-url must be of the form name=url")?;
-        externs.insert(name.to_string(), url.to_string());
-    }
-
-    Ok(externs)
-}
-
 /// Interprets the input file as a rust source file, passing it through the
 /// compiler all the way through the analysis passes. The rustdoc output is then
 /// generated from the cleaned AST of the crate.
@@ -792,27 +556,3 @@ fn rust_input<R, F>(cratefile: PathBuf,
         Err(_) => panic::resume_unwind(Box::new(errors::FatalErrorMarker)),
     }
 }
-
-/// Prints deprecation warnings for deprecated options
-fn check_deprecated_options(matches: &getopts::Matches, diag: &errors::Handler) {
-    let deprecated_flags = [
-       "input-format",
-       "output-format",
-       "no-defaults",
-       "passes",
-    ];
-
-    for flag in deprecated_flags.into_iter() {
-        if matches.opt_present(flag) {
-            let mut err = diag.struct_warn(&format!("the '{}' flag is considered deprecated",
-                                                    flag));
-            err.warn("please see https://github.com/rust-lang/rust/issues/44136");
-
-            if *flag == "no-defaults" {
-                err.help("you may want to use --document-private-items");
-            }
-
-            err.emit();
-        }
-    }
-}