Auto-format Rust code

This should be checked in CI, really.

Author: piegamesde

src/alejandra/src/rules/inherit.rs

@@ -53,8 +53,9 @@ pub(crate) fn rule(
                 steps.push_back(crate::builder::Step::Whitespace);
                 steps.push_back(crate::builder::Step::Comment(text));
                 steps.push_back(crate::builder::Step::NewLine);
-                // Only add padding if there are no `trivialities` (that is, there's no extra
-                // `Newlines(_)` to be added) or if the first one is a comment (that is, it'll need
+                // Only add padding if there are no `trivialities` (that is,
+                // there's no extra `Newlines(_)` to be added)
+                // or if the first one is a comment (that is, it'll need
                 // to be indented to match the content).
                 if matches!(
                     child.trivialities.front(),
@@ -77,9 +78,10 @@ pub(crate) fn rule(
                 match trivia {
                     crate::children2::Trivia::Comment(text) => {
                         steps.push_back(crate::builder::Step::Comment(text));
-                        // If the next `trivia` is a newline, don't add newlines and padding at the
-                        // end of this iteration, as it will lead to a new blank line in the
-                        // output.
+                        // If the next `trivia` is a newline, don't add newlines
+                        // and padding at the
+                        // end of this iteration, as it will lead to a new blank
+                        // line in the output.
                         if matches!(
                             trivia_iter.peek(),
                             Some(crate::children2::Trivia::Newlines(_))

src/alejandra/tests/fmt.rs

@@ -1,6 +1,7 @@
-use pretty_assertions::assert_eq;
 use std::io::Write;
 
+use pretty_assertions::assert_eq;
+
 #[test]
 fn cases() {
     let should_update = std::env::var("UPDATE").is_ok();
@@ -27,6 +28,10 @@ fn cases() {
 
         let content_out = std::fs::read_to_string(path_out.clone()).unwrap();
 
-        assert_eq!(content_out, content_got, "Test case `{case}` failed; see `src/alejandra/tests/cases/{case}/`");
+        assert_eq!(
+            content_out, content_got,
+            "Test case `{case}` failed; see \
+             `src/alejandra/tests/cases/{case}/`"
+        );
     }
 }

src/alejandra_cli/src/cli.rs

@@ -51,7 +51,7 @@ struct CLIArgs {
 
 #[derive(Clone)]
 struct FormattedPath {
-    pub path: String,
+    pub path:   String,
     pub status: alejandra::format::Status,
 }
 
@@ -147,12 +147,12 @@ pub fn main() -> std::io::Result<()> {
     let formatted_paths = match &include[..] {
         &[] | &["-"] => {
             vec![crate::cli::format_stdin(verbosity)]
-        },
+        }
         include => {
             let paths = crate::find::nix_files(include, &args.exclude);
 
             crate::cli::format_paths(paths, in_place, verbosity, threads)
-        },
+        }
     };
 
     let errors = formatted_paths
@@ -183,11 +183,9 @@ pub fn main() -> std::io::Result<()> {
 
     let changed = formatted_paths
         .iter()
-        .filter(|formatted_path| {
-            match formatted_path.status {
-                alejandra::format::Status::Changed(changed) => changed,
-                _ => false,
-            }
+        .filter(|formatted_path| match formatted_path.status {
+            alejandra::format::Status::Changed(changed) => changed,
+            _ => false,
         })
         .count();