Add DeepSource

Author: ajeetdsouza

src/cmd/import.rs

@@ -31,17 +31,15 @@ fn import_autojump(db: &mut Database, buffer: &str) -> Result<()> {
         if line.is_empty() {
             continue;
         }
-        let mut split = line.splitn(2, '\t');
+        let (rank, path) =
+            line.split_once('\t').with_context(|| format!("invalid entry: {line}"))?;
 
-        let rank = split.next().with_context(|| format!("invalid entry: {line}"))?;
         let mut rank = rank.parse::<f64>().with_context(|| format!("invalid rank: {rank}"))?;
         // Normalize the rank using a sigmoid function. Don't import actual ranks from
         // autojump, since its scoring algorithm is very different and might
         // take a while to get normalized.
         rank = sigmoid(rank);
 
-        let path = split.next().with_context(|| format!("invalid entry: {line}"))?;
-
         db.add_unchecked(path, rank, 0);
     }
 

src/shell.rs

@@ -96,13 +96,11 @@ mod tests {
     #[apply(opts)]
     fn elvish_elvish(cmd: Option<&str>, hook: InitHook, echo: bool, resolve_symlinks: bool) {
         let opts = Opts { cmd, hook, echo, resolve_symlinks };
-        let mut source = String::new();
+        let mut source = String::default();
 
         // Filter out lines using edit:*, since those functions are only available in
         // the interactive editor.
-        for line in
-            Elvish(&opts).render().unwrap().split('\n').filter(|line| !line.contains("edit:"))
-        {
+        for line in Elvish(&opts).render().unwrap().lines().filter(|line| !line.contains("edit:")) {
             source.push_str(line);
             source.push('\n');
         }

src/util.rs

@@ -135,7 +135,7 @@ impl FzfChild {
         mem::drop(self.0.stdin.take());
 
         let mut stdout = self.0.stdout.take().unwrap();
-        let mut output = String::new();
+        let mut output = String::default();
         stdout.read_to_string(&mut output).context("failed to read from fzf")?;
 
         let status = self.0.wait().context("wait failed on fzf")?;