From 81c832ffe7c844badd49b033ac4df3935df73c56 Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Thu, 4 Jul 2024 11:49:55 -0700
Subject: [PATCH 1/3] Rename main.rs to lib.rs.

Switching to a library to support upstream rustbook.
Next commit will add the main back.
---
 mdbook-spec/src/{main.rs => lib.rs} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename mdbook-spec/src/{main.rs => lib.rs} (100%)

diff --git a/mdbook-spec/src/main.rs b/mdbook-spec/src/lib.rs
similarity index 100%
rename from mdbook-spec/src/main.rs
rename to mdbook-spec/src/lib.rs

From b1e5cf3c029fb523de5eb69b84bb5192efc33e01 Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Thu, 4 Jul 2024 11:51:01 -0700
Subject: [PATCH 2/3] Create mdbook-spec main.rs.

Switching most of the code to a library to support rustbook upstream.
---
 mdbook-spec/src/lib.rs  | 27 ++-------------------------
 mdbook-spec/src/main.rs | 21 +++++++++++++++++++++
 2 files changed, 23 insertions(+), 25 deletions(-)
 create mode 100644 mdbook-spec/src/main.rs

diff --git a/mdbook-spec/src/lib.rs b/mdbook-spec/src/lib.rs
index 255da02..1504626 100644
--- a/mdbook-spec/src/lib.rs
+++ b/mdbook-spec/src/lib.rs
@@ -8,7 +8,6 @@ use semver::{Version, VersionReq};
 use std::collections::BTreeMap;
 use std::io;
 use std::path::PathBuf;
-use std::process;
 
 mod std_links;
 
@@ -21,29 +20,7 @@ static ADMONITION_RE: Lazy<Regex> = Lazy::new(|| {
     Regex::new(r"(?m)^ *> \[!(?<admon>[^]]+)\]\n(?<blockquote>(?: *> .*\n)+)").unwrap()
 });
 
-fn main() {
-    let mut args = std::env::args().skip(1);
-    match args.next().as_deref() {
-        Some("supports") => {
-            // Supports all renderers.
-            return;
-        }
-        Some(arg) => {
-            eprintln!("unknown argument: {arg}");
-            std::process::exit(1);
-        }
-        None => {}
-    }
-
-    let preprocessor = Spec::new();
-
-    if let Err(e) = handle_preprocessing(&preprocessor) {
-        eprintln!("{}", e);
-        process::exit(1);
-    }
-}
-
-fn handle_preprocessing(pre: &dyn Preprocessor) -> Result<(), Error> {
+pub fn handle_preprocessing(pre: &dyn Preprocessor) -> Result<(), Error> {
     let (ctx, book) = CmdPreprocessor::parse_input(io::stdin())?;
 
     let book_version = Version::parse(&ctx.mdbook_version)?;
@@ -65,7 +42,7 @@ fn handle_preprocessing(pre: &dyn Preprocessor) -> Result<(), Error> {
     Ok(())
 }
 
-struct Spec {
+pub struct Spec {
     /// Whether or not warnings should be errors (set by SPEC_DENY_WARNINGS
     /// environment variable).
     deny_warnings: bool,
diff --git a/mdbook-spec/src/main.rs b/mdbook-spec/src/main.rs
new file mode 100644
index 0000000..56e11d7
--- /dev/null
+++ b/mdbook-spec/src/main.rs
@@ -0,0 +1,21 @@
+fn main() {
+    let mut args = std::env::args().skip(1);
+    match args.next().as_deref() {
+        Some("supports") => {
+            // Supports all renderers.
+            return;
+        }
+        Some(arg) => {
+            eprintln!("unknown argument: {arg}");
+            std::process::exit(1);
+        }
+        None => {}
+    }
+
+    let preprocessor = mdbook_spec::Spec::new();
+
+    if let Err(e) = mdbook_spec::handle_preprocessing(&preprocessor) {
+        eprintln!("{}", e);
+        std::process::exit(1);
+    }
+}

From 410d49360ce90d47dd6bd9308d944829f56d96e8 Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Thu, 4 Jul 2024 11:51:39 -0700
Subject: [PATCH 3/3] Bump version to 0.1.1.

---
 mdbook-spec/CHANGELOG.md | 4 ++++
 mdbook-spec/Cargo.toml   | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/mdbook-spec/CHANGELOG.md b/mdbook-spec/CHANGELOG.md
index a631229..7a22032 100644
--- a/mdbook-spec/CHANGELOG.md
+++ b/mdbook-spec/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## mdbook-spec 0.1.1
+
+- Moved code to a library to support upstream integration.
+
 ## mdbook-spec 0.1.0
 
 - Initial release
diff --git a/mdbook-spec/Cargo.toml b/mdbook-spec/Cargo.toml
index 31b837a..2ed2a51 100644
--- a/mdbook-spec/Cargo.toml
+++ b/mdbook-spec/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook-spec"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "An mdBook preprocessor to help with the Rust specification."