1 files changed, 46 insertions, 0 deletions
diff --git a/src/dynamic/shells/fish.rs b/src/dynamic/shells/fish.rs
new file mode 100644
index 0000000..9d7e8c6
--- /dev/null
+++ b/src/dynamic/shells/fish.rs
@@ -0,0 +1,46 @@
+/// Fish completions
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub struct Fish;
+
+impl crate::dynamic::Completer for Fish {
+    fn file_name(&self, name: &str) -> String {
+        format!("{name}.fish")
+    }
+    fn write_registration(
+        &self,
+        _name: &str,
+        bin: &str,
+        completer: &str,
+        buf: &mut dyn std::io::Write,
+    ) -> Result<(), std::io::Error> {
+        let bin = shlex::quote(bin);
+        let completer = shlex::quote(completer);
+        writeln!(
+            buf,
+            r#"complete -x -c {bin} -a "("'{completer}'" complete --shell fish -- (commandline --current-process --tokenize --cut-at-cursor) (commandline --current-token))""#
+        )
+    }
+    fn write_complete(
+        &self,
+        cmd: &mut clap::Command,
+        args: Vec<std::ffi::OsString>,
+        current_dir: Option<&std::path::Path>,
+        buf: &mut dyn std::io::Write,
+    ) -> Result<(), std::io::Error> {
+        let index = args.len() - 1;
+        let completions = crate::dynamic::complete(cmd, args, index, current_dir)?;
+
+        for (completion, help) in completions {
+            write!(buf, "{}", completion.to_string_lossy())?;
+            if let Some(help) = help {
+                write!(
+                    buf,
+                    "\t{}",
+                    help.to_string().lines().next().unwrap_or_default()
+                )?;
+            }
+            writeln!(buf)?;
+        }
+        Ok(())
+    }
+}