1 files changed, 50 insertions, 0 deletions
diff --git a/src/command/client/search/duration.rs b/src/command/client/search/duration.rs
new file mode 100644
index 00000000..3cdd4e83
--- /dev/null
+++ b/src/command/client/search/duration.rs
@@ -0,0 +1,50 @@
+use std::{ops::ControlFlow, time::Duration};
+
+#[allow(clippy::module_name_repetitions)]
+pub fn format_duration(f: Duration) -> String {
+    fn item(name: &str, value: u64) -> ControlFlow<String> {
+        if value > 0 {
+            ControlFlow::Break(format!("{}{}", value, name))
+        } else {
+            ControlFlow::Continue(())
+        }
+    }
+
+    // impl taken and modified from
+    // https://github.com/tailhook/humantime/blob/master/src/duration.rs#L295-L331
+    // Copyright (c) 2016 The humantime Developers
+    fn fmt(f: Duration) -> ControlFlow<String, ()> {
+        let secs = f.as_secs();
+        let nanos = f.subsec_nanos();
+
+        let years = secs / 31_557_600; // 365.25d
+        let year_days = secs % 31_557_600;
+        let months = year_days / 2_630_016; // 30.44d
+        let month_days = year_days % 2_630_016;
+        let days = month_days / 86400;
+        let day_secs = month_days % 86400;
+        let hours = day_secs / 3600;
+        let minutes = day_secs % 3600 / 60;
+        let seconds = day_secs % 60;
+
+        let millis = nanos / 1_000_000;
+
+        // a difference from our impl than the original is that
+        // we only care about the most-significant segment of the duration.
+        // If the item call returns `Break`, then the `?` will early-return.
+        // This allows for a very consise impl
+        item("y", years)?;
+        item("mo", months)?;
+        item("d", days)?;
+        item("h", hours)?;
+        item("m", minutes)?;
+        item("s", seconds)?;
+        item("ms", u64::from(millis))?;
+        ControlFlow::Continue(())
+    }
+
+    match fmt(f) {
+        ControlFlow::Break(b) => b,
+        ControlFlow::Continue(()) => String::from("0s"),
+    }
+}