Prevent unnecessary copy

src/main.rs

@@ -95,8 +95,8 @@ fn run() -> Result<(), Error> {
     let git = Git::new();
     let mut git_repos = Repositories::new(&git);
     let terminal = Terminal::new();
-    let mut reports = Report::new();
     let config = Config::read()?;
+    let mut reports = Report::new();
 
     let sudo = if cfg!(target_os = "linux") {
         utils::which("sudo")
@@ -232,7 +232,7 @@ fn run() -> Result<(), Error> {
     if let Some(commands) = config.commands() {
         for (name, command) in commands {
             terminal.print_separator(name);
-            run_custom_command(&command).report(name.as_ref(), &mut reports);
+            run_custom_command(&command).report(name.as_str(), &mut reports);
         }
     }
 

src/report.rs

@@ -1,19 +1,20 @@
 use std::borrow::Cow;
 
-pub type Report = Vec<(String, bool)>;
+type CowString<'a> = Cow<'a, str>;
+pub type Report<'a> = Vec<(CowString<'a>, bool)>;
 
 pub trait Reporter {
-    fn report<'a, M: Into<Cow<'a, str>>>(&self, key: M, report: &mut Report);
+    fn report<'a, M: Into<CowString<'a>>>(&self, key: M, report: &mut Report<'a>);
 }
 
 impl<T, E> Reporter for Result<T, E>
 where
     T: Reporter,
 {
-    fn report<'a, M: Into<Cow<'a, str>>>(&self, key: M, report: &mut Report) {
+    fn report<'a, M: Into<CowString<'a>>>(&self, key: M, report: &mut Report<'a>) {
         match self {
             Err(_) => {
-                report.push((key.into().into_owned(), false));
+                report.push((key.into(), false));
             }
             Ok(item) => {
                 item.report(key, report);
@@ -26,7 +27,7 @@ impl<T> Reporter for Option<T>
 where
     T: Reporter,
 {
-    fn report<'a, M: Into<Cow<'a, str>>>(&self, key: M, report: &mut Report) {
+    fn report<'a, M: Into<CowString<'a>>>(&self, key: M, report: &mut Report<'a>) {
         if let Some(item) = self {
             item.report(key, report);
         }
@@ -34,13 +35,13 @@ where
 }
 
 impl Reporter for bool {
-    fn report<'a, M: Into<Cow<'a, str>>>(&self, key: M, report: &mut Report) {
-        report.push((key.into().into_owned(), *self));
+    fn report<'a, M: Into<CowString<'a>>>(&self, key: M, report: &mut Report<'a>) {
+        report.push((key.into(), *self));
     }
 }
 
 impl Reporter for () {
-    fn report<'a, M: Into<Cow<'a, str>>>(&self, key: M, report: &mut Report) {
-        report.push((key.into().into_owned(), true));
+    fn report<'a, M: Into<CowString<'a>>>(&self, key: M, report: &mut Report<'a>) {
+        report.push((key.into(), true));
     }
 }