Merge pull request #160 from juchiast/patch-rs-binding

patch-rs binding

Cargo.toml

@@ -59,6 +59,7 @@ blake2 = "0.8.0"
 tar = "0.4.20"
 xz2 = "0.1.6"
 unidiff = { git = "https://github.com/foundpatterns/difflib" }
+patch-rs = "0.3"
 
 
 [dev-dependencies]

src/bindings/app/mod.rs

@@ -3,6 +3,7 @@ pub mod log;
 pub mod markdown;
 pub mod tera;
 pub mod diff;
+pub mod patch;
 
 use rlua::prelude::*;
 
@@ -22,6 +23,7 @@ pub fn init(lua: &Lua) -> ::Result<()> {
     tantivy::init(&lua)?;
     tera::init(&lua)?;
     diff::init(&lua)?;
+    patch::init(&lua)?;
 
     Ok(())
 }

src/bindings/app/patch.rs

@@ -0,0 +1,24 @@
+use rlua::{Lua, UserData, UserDataMethods};
+
+struct PatchParser(patch_rs::PatchParser);
+
+impl UserData for PatchParser {
+    fn add_methods<'lua, M: UserDataMethods<'lua, Self>>(methods: &mut M) {
+        methods.add_method("process", |_, this, _: ()| {
+            this.0.process().map_err(rlua::Error::external)
+        });
+    }
+}
+
+pub fn init(lua: &Lua) -> Result<(), rlua::Error> {
+    let module = lua.create_table()?;
+    module.set(
+        "new",
+        lua.create_function(|_, (text, patch): (Vec<String>, String)| {
+            Ok(PatchParser(patch_rs::PatchParser::new(text, patch)))
+        })?,
+    )?;
+    let g = lua.globals();
+    g.set("patch_parser", module)?;
+    Ok(())
+}

src/bindings/string/stringset.rs

@@ -223,4 +223,4 @@ mod tests {
             symmetric(a, b)
         "#, None).unwrap();
     }
-}
+}

src/lib.rs

@@ -38,6 +38,7 @@ extern crate tar;
 extern crate xz2;
 extern crate unidiff;
 extern crate blake2;
+extern crate patch_rs;
 
 #[cfg(feature = "tantivy_bindings")]
 extern crate tantivy;