refactor: use human readable date for canary versions (#223)

Author: pi0

src/semver.ts

@@ -69,7 +69,7 @@ export async function bumpVersion(
     const suffix =
       typeof opts.suffix === "string"
         ? `-${opts.suffix}`
-        : `-${Math.round(Date.now() / 1000)}.${commits[0].shortHash}`;
+        : `+${fmtDate(new Date())}-${commits[0].shortHash}`;
     pkg.version = config.newVersion = config.newVersion.split("-")[0] + suffix;
   }
 
@@ -85,3 +85,14 @@ export async function bumpVersion(
 
   return pkg.version;
 }
+
+function fmtDate(d: Date): string {
+  // YYMMDD-HHMMSS: 20240919-140954
+  const date = joinNumbers([d.getFullYear(), d.getMonth() + 1, d.getDate()]);
+  const time = joinNumbers([d.getHours(), d.getMinutes(), d.getSeconds()]);
+  return `${date}-${time}`;
+}
+
+function joinNumbers(items: number[]): string {
+  return items.map((i) => (i + "").padStart(2, "0")).join("");
+}