admin: update build diff tool generation scripts

Author: ricmoo

src.ts/_admin/generate-diffs.ts

@@ -1,4 +1,5 @@
 import fs from "fs";
+import { gzipSync } from "zlib";
 
 import { getVersions } from "./utils/npm.js";
 import { resolve } from "./utils/path.js";
@@ -14,12 +15,13 @@ function escver(v: string): string {
     fs.writeFileSync(resolve("misc/diffs/versions.txt"), versions.map((h) => h.version).join(","));
     for (let i = 0; i < versions.length; i++) {
         for (let j = i + 1; j < versions.length; j++) {
-            const filename = resolve(`misc/diffs/diff-${ escver(versions[i].version) }_${ escver(versions[j].version) }.txt`);
+            const filename = resolve(`misc/diffs/diff-${ escver(versions[i].version) }_${ escver(versions[j].version) }.txt.gz`);
             if (fs.existsSync(filename)) { continue; }
+            console.log(filename);
             const tag0 = versions[i].gitHead, tag1 = versions[j].gitHead;
             const diff = await getDiff(resolve("src.ts"), tag0, tag1);
-            console.log({ diff });
-            fs.writeFileSync(filename, diff);
+            //console.log({ diff });
+            fs.writeFileSync(filename, gzipSync(diff).toString("base64"));
         }
     }
 })();