Auto merge of rust-lang#61948 - ehuss:update-mdbook, r=steveklabnik

Update mdbook

This updates to mdbook 0.3.0. This release includes the following changes:
https://github.com/rust-lang-nursery/mdBook/blob/master/CHANGELOG.md#mdbook-030
One of the biggest changes is the update to pulldown-cmark.

This also bumps the submodules (except the nomicon which has some broken links).

## reference

6 commits in f8ae436..08ae27a
2019-05-31 14:59:12 +0200 to 2019-06-17 11:24:13 -0700
- Document `underscore_const_names` (rust-lang/reference#620)
- Describe `#[repr(align(x))]` semantics on `enum`s (rust-lang/reference#619)
- Fix typo in lazy_static example. (rust-lang/reference#622)
- Rust 2015 supports Kleene ? macro operator (rust-lang/reference#617)
- Bitrig support has been removed (rust-lang/reference#615)
- Fix spell error in attributes/diagnostics.md (rust-lang/reference#614)

## book

8 commits in 62a8c6f25fbd981c80a046f3b04be9684749af3b..9aacfcc4c5b102c8cda195932addefd32fe955d2
2019-05-28 15:48:23 -0400 to 2019-06-16 21:27:26 -0400
- Add a script to help diff rendered books
- Update mdbook links (rust-lang/book#1989)
- Update for markdown changes. (rust-lang/book#1984)
- Make all mentions of crates.io consistent
- Propagate corrections made in layout
- Add link to Swedish translation
- Propagate small edits made in layout
- Remove snapshot files that have been checked with layout

## rust-by-example

3 commits in d8eec1dd65470b9a68e80ac1cba8fad0daac4916..b27472962986e85c94f4183b1a6d2207660d3ed6
2019-06-08 10:15:22 -0300 to 2019-06-17 15:52:07 -0300
- Update `macro_rules!` formatting. (rust-lang/rust-by-example#1205)
- Add Cargo comment to the `try!` macro example. (rust-lang/rust-by-example#1203)
- Fix typo (rust-lang/rust-by-example#1204)

## rustc-guide

15 commits in 3ac9cfc..f55e97c
2019-06-02 19:36:58 -0500 to 2019-06-15 17:29:12 -0500
- fix typos
- Update for TyCtxt<'a, 'gcx, 'tcx> -> TyCtxt<'tcx>.
- fix ci failures, typos, broken links
- Some edits to address review comments
- Notes about closure de-sugaring
- add note about rebuilding llvm
- Changes to config.toml require a clean
- Fix a few typos in type inference chapter
- Add triagebot (rust-lang/rustc-dev-guide#337)
- Update how-to-build-and-run.md
- Update how-to-build-and-run.md
- Update compiler-debugging.md
- use debug instead of debuginfo-level
- Replaced tabs with spaces
- correct indentation

## edition-guide

4 commits in 581c6cccfaf995394ea9dcac362dc8e731c18558..f8072acde5ce29c7570d7986180bbded2d22e287
2019-05-06 12:47:44 -0700 to 2019-06-14 23:27:05 +0200
- Small fixes (rust-lang/edition-guide#179)
- Cleanup unused NLL link (rust-lang/edition-guide#167)
- Part 2: Rust 2015 now supports ? macro rep op (rust-lang/edition-guide#163)
- Part 1: Rust 2015 now supports ? macro rep op (rust-lang/edition-guide#162)

## embedded-book

1 commits in f0c75b75f9c18537b78f5d17c1015247e9a49c86..ef27b517dcd0b990c888c0d7caeff52a5a115619
2019-06-03 10:49:02 +0000 to 2019-06-18 22:59:47 +0000
- Fix link for more strict commonmark interpretation.  (rust-embedded/book#194)

Author: bors

Cargo.lock

@@ -61,19 +61,19 @@ macro_rules! book {
 // NOTE: When adding a book here, make sure to ALSO build the book by
 // adding a build step in `src/bootstrap/builder.rs`!
 book!(
-    EditionGuide, "src/doc/edition-guide", "edition-guide", RustbookVersion::MdBook2;
-    EmbeddedBook, "src/doc/embedded-book", "embedded-book", RustbookVersion::MdBook2;
-    Nomicon, "src/doc/nomicon", "nomicon", RustbookVersion::MdBook2;
+    EditionGuide, "src/doc/edition-guide", "edition-guide", RustbookVersion::Latest;
+    EmbeddedBook, "src/doc/embedded-book", "embedded-book", RustbookVersion::Latest;
+    Nomicon, "src/doc/nomicon", "nomicon", RustbookVersion::Latest;
     Reference, "src/doc/reference", "reference", RustbookVersion::MdBook1;
-    RustByExample, "src/doc/rust-by-example", "rust-by-example", RustbookVersion::MdBook2;
+    RustByExample, "src/doc/rust-by-example", "rust-by-example", RustbookVersion::Latest;
     RustcBook, "src/doc/rustc", "rustc", RustbookVersion::MdBook1;
-    RustdocBook, "src/doc/rustdoc", "rustdoc", RustbookVersion::MdBook2;
+    RustdocBook, "src/doc/rustdoc", "rustdoc", RustbookVersion::Latest;
 );
 
 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 enum RustbookVersion {
     MdBook1,
-    MdBook2,
+    Latest,
 }
 
 fn doc_src(builder: &Builder<'_>) -> Interned<PathBuf> {
@@ -108,7 +108,7 @@ impl Step for UnstableBook {
             target: self.target,
             name: INTERNER.intern_str("unstable-book"),
             src: builder.md_doc_out(self.target),
-            version: RustbookVersion::MdBook2,
+            version: RustbookVersion::Latest,
         })
     }
 }
@@ -196,7 +196,7 @@ impl Step for RustbookSrc {
 
         let vers = match self.version {
             RustbookVersion::MdBook1 => "1",
-            RustbookVersion::MdBook2 => "2",
+            RustbookVersion::Latest => "3",
         };
 
         builder.run(rustbook_cmd
@@ -251,7 +251,7 @@ impl Step for TheBook {
         builder.ensure(RustbookSrc {
             target,
             name: INTERNER.intern_string(name.to_string()),
-            version: RustbookVersion::MdBook2,
+            version: RustbookVersion::Latest,
             src: doc_src(builder),
         });
 
@@ -261,23 +261,23 @@ impl Step for TheBook {
         builder.ensure(RustbookSrc {
             target,
             name: INTERNER.intern_string(source_name),
-            version: RustbookVersion::MdBook2,
+            version: RustbookVersion::Latest,
             src: doc_src(builder),
         });
 
         let source_name = format!("{}/second-edition", name);
         builder.ensure(RustbookSrc {
             target,
             name: INTERNER.intern_string(source_name),
-            version: RustbookVersion::MdBook2,
+            version: RustbookVersion::Latest,
             src: doc_src(builder),
         });
 
         let source_name = format!("{}/2018-edition", name);
         builder.ensure(RustbookSrc {
             target,
             name: INTERNER.intern_string(source_name),
-            version: RustbookVersion::MdBook2,
+            version: RustbookVersion::Latest,
             src: doc_src(builder),
         });
 

src/bootstrap/doc.rs

@@ -8,9 +8,8 @@ edition = "2018"
 [dependencies]
 clap = "2.25.0"
 
-[dependencies.mdbook_2]
-package = "mdbook"
-version = "0.2.3"
+[dependencies.mdbook]
+version = "0.3.0"
 default-features = false
 features = ["search"]
 

src/doc/book

@@ -10,8 +10,8 @@ use clap::{App, ArgMatches, SubCommand, AppSettings};
 use mdbook_1::{MDBook as MDBook1};
 use mdbook_1::errors::{Result as Result1};
 
-use mdbook_2::{MDBook as MDBook2};
-use mdbook_2::errors::{Result as Result2};
+use mdbook::MDBook;
+use mdbook::errors::Result;
 
 fn main() {
     let d_message = "-d, --dest-dir=[dest-dir]
@@ -48,8 +48,8 @@ fn main() {
                         ::std::process::exit(101);
                     }
                 }
-                Some("2") => {
-                    if let Err(e) = build_2(sub_matches) {
+                Some("2") | Some("3") => {
+                    if let Err(e) = build(sub_matches) {
                         eprintln!("Error: {}", e);
 
                         for cause in e.iter().skip(1) {
@@ -60,7 +60,7 @@ fn main() {
                     }
                 }
                 _ => {
-                    panic!("Invalid mdBook version! Select '1' or '2'");
+                    panic!("Invalid mdBook version! Select '1' or '2' or '3'");
                 }
             };
         },
@@ -86,9 +86,9 @@ pub fn build_1(args: &ArgMatches<'_>) -> Result1<()> {
 }
 
 // Build command implementation
-pub fn build_2(args: &ArgMatches<'_>) -> Result2<()> {
+pub fn build(args: &ArgMatches<'_>) -> Result<()> {
     let book_dir = get_book_dir(args);
-    let mut book = MDBook2::load(&book_dir)?;
+    let mut book = MDBook::load(&book_dir)?;
 
     // Set this to allow us to catch bugs in advance.
     book.config.build.create_missing = false;