feat: add metric units

Author: josecelano

cSpell.json

@@ -63,6 +63,7 @@
         "Freebox",
         "Frostegård",
         "gecos",
+        "Gibibytes",
         "Grcov",
         "hasher",
         "healthcheck",
@@ -87,6 +88,7 @@
         "kcachegrind",
         "kexec",
         "keyout",
+        "Kibibytes",
         "kptr",
         "lcov",
         "leecher",
@@ -97,6 +99,7 @@
         "LOGNAME",
         "Lphant",
         "matchmakes",
+        "Mebibytes",
         "metainfo",
         "middlewares",
         "misresolved",
@@ -159,6 +162,7 @@
         "Swiftbit",
         "taiki",
         "tdyne",
+        "Tebibytes",
         "tempfile",
         "testcontainers",
         "thiserror",

packages/metrics/src/lib.rs

@@ -6,3 +6,4 @@ pub mod metric_collection;
 pub mod prometheus;
 pub mod sample;
 pub mod sample_collection;
+pub mod unit;

packages/metrics/src/unit.rs

@@ -0,0 +1,25 @@
+//! This module defines the `Unit` enum, which represents various units of
+//! measurement.
+//!
+//! The `Unit` enum is used to specify the unit of measurement for metrics.
+//!
+//! They were copied from the `metrics` crate, to allow future compatibility.
+pub enum Unit {
+    Count,
+    Percent,
+    Seconds,
+    Milliseconds,
+    Microseconds,
+    Nanoseconds,
+    Tebibytes,
+    Gibibytes,
+    Mebibytes,
+    Kibibytes,
+    Bytes,
+    TerabitsPerSecond,
+    GigabitsPerSecond,
+    MegabitsPerSecond,
+    KilobitsPerSecond,
+    BitsPerSecond,
+    CountPerSecond,
+}