Use custom syntect packs to reduce binary size

- Custom syntax set containing only C/C++
- Custom themeset containing only Solarized (Dark)
- Disable default syntect features

Cargo.toml

@@ -63,7 +63,7 @@ serde_yaml = "0.9.27"
 sha-1 = "0.10.1"
 smallvec = "1.11.2"
 supports-color = "2.1.0"
-syntect = "5.1.0"
+syntect = { version = "5.1.0", features = ["parsing", "regex-onig", "dump-load"], default-features = false }
 tracing = "0.1.40"
 tracing-attributes = "0.1.27"
 tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }

assets/syntax/README

@@ -0,0 +1,11 @@
+syntect packs generated from:
+https://github.com/braver/Solarized/blob/87e01090cf5fb821a234265b3138426ae84900e7/Solarized%20(dark).tmTheme
+https://github.com/sublimehq/Packages/tree/fa6b8629c95041bf262d4c1dab95c456a0530122/C%2B%2B
+
+// let mut theme_set = ThemeSet::load_from_folder("../Solarized")?;
+// syntect::dumps::dump_to_file(&theme_set, "assets/syntax/default.themedump")?;
+//
+// let mut builder = SyntaxSetBuilder::new();
+// builder.add_from_folder("../sublimehq-Packages/C++", true)?;
+// let syntax_set = builder.build();
+// syntect::dumps::dump_to_file(&syntax_set, "assets/syntax/default_newlines.packdump")?;

src/cmd/dwarf.rs

@@ -57,11 +57,14 @@ pub fn run(args: Args) -> Result<()> {
 }
 
 fn dump(args: DumpArgs) -> Result<()> {
-    let theme_set = ThemeSet::load_defaults();
+    // Load syntect
+    let theme_set: ThemeSet =
+        syntect::dumps::from_binary(include_bytes!("../../assets/syntax/default.themedump"));
+    let syntax_set: SyntaxSet = syntect::dumps::from_binary(include_bytes!(
+        "../../assets/syntax/default_newlines.packdump"
+    ));
     let theme = theme_set.themes.get("Solarized (dark)").context("Failed to load theme")?;
-    let syntax_set = SyntaxSet::load_defaults_newlines();
-    let syntax =
-        syntax_set.find_syntax_by_extension("cpp").context("Failed to find syntax")?.clone();
+    let syntax = syntax_set.find_syntax_by_name("C++").context("Failed to find syntax")?.clone();
 
     let file = map_file(&args.in_file)?;
     let buf = file.as_slice();