Bug#1139655: node-egjs-hammerjs: please make the build reproducible

[Chris Lamb]

Source: node-egjs-hammerjs
Version: 2.0.17-1
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0], we noticed that
node-egjs-hammerjs could not be built reproducibly.

Patch attached.

 [0] https://reproducible-builds.org/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/patches/reproducible-build.patch	1969-12-31 16:00:00.000000000 -0800
--- b/debian/patches/reproducible-build.patch	2026-06-10 09:27:47.984382789 -0700
@@ -0,0 +1,17 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby at debian.org>
+Last-Update: 2026-06-10
+
+--- node-egjs-hammerjs-2.0.17.orig/banner.js
++++ node-egjs-hammerjs-2.0.17/banner.js
+@@ -1,7 +1,8 @@
+ var pkg = require("./package.json");
+-var date = new Date();
++var epoch = Number(process.env["SOURCE_DATE_EPOCH"]);
++var date = Number.isInteger(epoch) ? new Date(epoch * 1000) : new Date();
+ 
+-module.exports = `/*! ${pkg.title || pkg.name} - v${pkg.version} - ${[ date.getFullYear(), ('0' + (date.getMonth() + 1)).slice(-2), ('0' + date.getDate()).slice(-2)].join('-')}
++module.exports = `/*! ${pkg.title || pkg.name} - v${pkg.version} - ${[ date.getUTCFullYear(), ('0' + (date.getUTCMonth() + 1)).slice(-2), ('0' + date.getUTCDate()).slice(-2)].join('-')}
+  * ${pkg.homepage}
+  *
+  * Forked By Naver egjs
--- a/debian/patches/series	1969-12-31 16:00:00.000000000 -0800
--- b/debian/patches/series	2026-06-10 09:16:34.871252168 -0700
@@ -0,0 +1 @@
+reproducible-build.patch