See #358. Add Rustfmt beautifier for Rust language support

docs/options.md

@@ -586,6 +586,15 @@ Indentation size/length (Supported by autopep8)
 **Description**:
 
 do not fix these errors/warnings (Supported by autopep8)
+###  Rust - Rustfmt path 
+
+**Key**: `rust_rustfmt_path`
+
+**Type**: `string`
+
+**Description**:
+
+Path to rustfmt program (Supported by rustfmt)
 ###  SQL - Indent size 
 
 **Key**: `sql_indent_size`
@@ -1469,6 +1478,37 @@ Default Beautifier to be used for Ruby
 **Description**:
 
 Automatically beautify Ruby files on save
+###  Language Config - Rust - Disable Beautifying Language 
+
+**Key**: `language_rust_disabled`
+
+**Type**: `boolean`
+
+**Description**:
+
+Disable Rust Beautification
+###  Language Config - Rust - Default Beautifier 
+
+**Key**: `language_rust_default_beautifier`
+
+**Default**: `rustfmt`
+
+**Type**: `string`
+
+**Enum**:  `rustfmt` 
+
+**Description**:
+
+Default Beautifier to be used for Rust
+###  Language Config - Rust - Beautify On Save 
+
+**Key**: `language_rust_beautify_on_save`
+
+**Type**: `boolean`
+
+**Description**:
+
+Automatically beautify Rust files on save
 ###  Language Config - Sass - Disable Beautifying Language 
 
 **Key**: `language_sass_disabled`

examples/nested-jsbeautifyrc/rust/expected/test.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("hello, world");
+}

examples/nested-jsbeautifyrc/rust/original/_test.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("hello, world");
+}

src/beautifiers/beautifier.coffee

@@ -9,7 +9,7 @@ readFile = Promise.promisify(fs.readFile)
 module.exports = class Beautifier
 
     ###
-    
+
     ###
     Promise: Promise
 

src/beautifiers/index.coffee

@@ -46,6 +46,7 @@ module.exports = class Beautifiers
         'prettydiff'
         'rubocop'
         'ruby-beautify'
+        'rustfmt'
         'sqlformat'
         'tidy-markdown'
         'typescript-formatter'

src/beautifiers/rustfmt.coffee

@@ -0,0 +1,27 @@
+###
+Requires https://github.com/nrc/rustfmt
+###
+
+"use strict"
+Beautifier = require('./beautifier')
+
+module.exports = class rustfmt extends Beautifier
+
+    name: "rustfmt"
+
+    options: {
+        Rust: true
+    }
+
+    beautify: (text, language, options) ->
+        program = options.rustfmt_path or "rustfmt"
+        @run(program, [
+            tmpFile = @tempFile("tmp", text)
+            ], help: {
+                link: "https://github.com/nrc/rustfmt"
+                program: "rustfmt"
+                pathOption: "Rust - Rustfmt Path"
+            })
+            .then(=>
+                @readFile(tmpFile)
+            )

src/languages/index.coffee

@@ -39,6 +39,7 @@ module.exports = class Languages
     "php"
     "python"
     "ruby"
+    "rust"
     "sass"
     "scss"
     "spacebars"

src/languages/rust.coffee

@@ -0,0 +1,27 @@
+module.exports = {
+
+    name: "Rust"
+    namespace: "rust"
+
+    ###
+    Supported Grammars
+    ###
+    grammars: [
+        "Rust"
+    ]
+
+    ###
+    Supported extensions
+    ###
+    extensions: [
+        "rs"
+        "rlib"
+    ]
+
+    options:
+        rustfmt_path:
+            type: 'string'
+            default: ""
+            description: "Path to rustfmt program"
+
+}