3 files changed, 53 insertions, 20 deletions

diff --git a/crates/tools/src/lib.rs b/crates/tools/src/lib.rs
index 9a1b12a16..5d5d372bb 100644
--- a/crates/tools/src/lib.rs
+++ b/crates/tools/src/lib.rs
@@ -1,17 +1,17 @@
 extern crate itertools;
 #[macro_use]
 extern crate failure;
+extern crate heck;
 extern crate ron;
 extern crate tera;
-extern crate heck;
 
+use heck::{CamelCase, ShoutySnakeCase, SnakeCase};
+use itertools::Itertools;
 use std::{
     collections::HashMap,
     fs,
     path::{Path, PathBuf},
 };
-use itertools::Itertools;
-use heck::{CamelCase, ShoutySnakeCase, SnakeCase};
 
 pub type Result<T> = ::std::result::Result<T, failure::Error>;
 
@@ -61,7 +61,6 @@ pub fn collect_tests(s: &str) -> Vec<(usize, Test)> {
     res
 }
 
-
 pub fn update(path: &Path, contents: &str, verify: bool) -> Result<()> {
     match fs::read_to_string(path) {
         Ok(ref old_contents) if old_contents == contents => {
@@ -116,5 +115,8 @@ pub fn render_template(template: &Path) -> Result<String> {
 }
 
 pub fn project_root() -> PathBuf {
-    Path::new(&std::env::var("CARGO_MANIFEST_DIR").unwrap()).parent().unwrap().to_path_buf()
+    Path::new(&std::env::var("CARGO_MANIFEST_DIR").unwrap())
+        .parent()
+        .unwrap()
+        .to_path_buf()
 }
diff --git a/crates/tools/src/main.rs b/crates/tools/src/main.rs
index 6eacfc190..b662d78df 100644
--- a/crates/tools/src/main.rs
+++ b/crates/tools/src/main.rs
@@ -11,7 +11,10 @@ use std::{
     path::{Path, PathBuf},
     process::Command,
 };
-use tools::{AST, AST_TEMPLATE, Result, SYNTAX_KINDS, SYNTAX_KINDS_TEMPLATE, Test, collect_tests, render_template, update, project_root};
+use tools::{
+    collect_tests, project_root, render_template, update, Result, Test, AST, AST_TEMPLATE,
+    SYNTAX_KINDS, SYNTAX_KINDS_TEMPLATE,
+};
 
 const GRAMMAR_DIR: &str = "./crates/ra_syntax/src/grammar";
 const INLINE_TESTS_DIR: &str = "./crates/ra_syntax/tests/data/parser/inline";
@@ -40,18 +43,23 @@ fn main() -> Result<()> {
 fn run_gen_command(name: &str, verify: bool) -> Result<()> {
     match name {
         "gen-kinds" => {
-            update(&project_root().join(SYNTAX_KINDS), &render_template(&project_root().join(SYNTAX_KINDS_TEMPLATE))?, verify)?;
-            update(&project_root().join(AST), &render_template(&project_root().join(AST_TEMPLATE))?, verify)?;
-        },
-        "gen-tests" => {
-            gen_tests(verify)?
-        },
+            update(
+                &project_root().join(SYNTAX_KINDS),
+                &render_template(&project_root().join(SYNTAX_KINDS_TEMPLATE))?,
+                verify,
+            )?;
+            update(
+                &project_root().join(AST),
+                &render_template(&project_root().join(AST_TEMPLATE))?,
+                verify,
+            )?;
+        }
+        "gen-tests" => gen_tests(verify)?,
         _ => unreachable!(),
     }
     Ok(())
 }
 
-
 fn gen_tests(verify: bool) -> Result<()> {
     let tests = tests_from_dir(Path::new(GRAMMAR_DIR))?;
 
@@ -133,11 +141,20 @@ fn install_code_extension() -> Result<()> {
     } else {
         run(r"npm install", "./editors/code")?;
     }
-    run(r"node ./node_modules/vsce/out/vsce package", "./editors/code")?;
+    run(
+        r"node ./node_modules/vsce/out/vsce package",
+        "./editors/code",
+    )?;
     if cfg!(windows) {
-        run(r"cmd.exe /c code.cmd --install-extension ./ra-lsp-0.0.1.vsix", "./editors/code")?;
+        run(
+            r"cmd.exe /c code.cmd --install-extension ./ra-lsp-0.0.1.vsix",
+            "./editors/code",
+        )?;
     } else {
-        run(r"code --install-extension ./ra-lsp-0.0.1.vsix", "./editors/code")?;
+        run(
+            r"code --install-extension ./ra-lsp-0.0.1.vsix",
+            "./editors/code",
+        )?;
     }
     Ok(())
 }
@@ -145,7 +162,11 @@ fn install_code_extension() -> Result<()> {
 fn run(cmdline: &'static str, dir: &str) -> Result<()> {
     eprintln!("\nwill run: {}", cmdline);
     let manifest_dir = env!("CARGO_MANIFEST_DIR");
-    let project_dir = Path::new(manifest_dir).ancestors().nth(2).unwrap().join(dir);
+    let project_dir = Path::new(manifest_dir)
+        .ancestors()
+        .nth(2)
+        .unwrap()
+        .join(dir);
     let mut args = cmdline.split_whitespace();
     let exec = args.next().unwrap();
     let status = Command::new(exec)
diff --git a/crates/tools/tests/cli.rs b/crates/tools/tests/cli.rs
index f507d80a2..16899bb5f 100644
--- a/crates/tools/tests/cli.rs
+++ b/crates/tools/tests/cli.rs
@@ -1,13 +1,23 @@
 extern crate tools;
 
-use tools::{AST, AST_TEMPLATE, SYNTAX_KINDS, SYNTAX_KINDS_TEMPLATE, render_template, update, project_root};
+use tools::{
+    project_root, render_template, update, AST, AST_TEMPLATE, SYNTAX_KINDS, SYNTAX_KINDS_TEMPLATE,
+};
 
 #[test]
 fn verify_template_generation() {
-    if let Err(error) = update(&project_root().join(SYNTAX_KINDS), &render_template(&project_root().join(SYNTAX_KINDS_TEMPLATE)).unwrap(), true) {
+    if let Err(error) = update(
+        &project_root().join(SYNTAX_KINDS),
+        &render_template(&project_root().join(SYNTAX_KINDS_TEMPLATE)).unwrap(),
+        true,
+    ) {
         panic!("{}. Please update it by running `cargo gen-kinds`", error);
     }
-    if let Err(error) = update(&project_root().join(AST), &render_template(&project_root().join(AST_TEMPLATE)).unwrap(), true) {
+    if let Err(error) = update(
+        &project_root().join(AST),
+        &render_template(&project_root().join(AST_TEMPLATE)).unwrap(),
+        true,
+    ) {
         panic!("{}. Please update it by running `cargo gen-kinds`", error);
     }
 }