From 70e05c2a08b76d2fc7a062817353dfd1d879cb20 Mon Sep 17 00:00:00 2001
From: Pirate Praveen <praveen@debian.org>
Date: Wed, 10 Jul 2019 16:40:28 +0530
Subject: Make build reproducible

---
 debian/patches/remove-unsupported-syntax.patch |  4 ++--
 debian/patches/reproducible_build.diff         | 15 +++++++++++++++
 debian/patches/series                          |  1 +
 3 files changed, 18 insertions(+), 2 deletions(-)
 create mode 100644 debian/patches/reproducible_build.diff

diff --git a/debian/patches/remove-unsupported-syntax.patch b/debian/patches/remove-unsupported-syntax.patch
index 163dac1..bf1b359 100644
--- a/debian/patches/remove-unsupported-syntax.patch
+++ b/debian/patches/remove-unsupported-syntax.patch
@@ -1,5 +1,5 @@
-This syntax is not supported by packaged rollup/node yet.
-We use uglifyjs.terser command to minify.
+This syntax is not supported in packaged rollup/node yet.
+Minified file is generated by uglifyjs.terser command line.
 
 --- a/rollup.config.js
 +++ b/rollup.config.js
diff --git a/debian/patches/reproducible_build.diff b/debian/patches/reproducible_build.diff
new file mode 100644
index 0000000..289e06d
--- /dev/null
+++ b/debian/patches/reproducible_build.diff
@@ -0,0 +1,15 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2019-06-20
+
+--- a/rollup.config.js
++++ b/rollup.config.js
+@@ -9,7 +9,7 @@
+     format: "umd",
+     indent: false,
+     extend: true,
+-    banner: `// ${meta.homepage} v${meta.version} Copyright ${(new Date).getFullYear()} ${meta.author.name}`,
++    banner: `// ${meta.homepage} v${meta.version} Copyright ${(new Date(process.env.SOURCE_DATE_EPOCH ? (process.env.SOURCE_DATE_EPOCH * 1000) : new Date().getTime())).getFullYear()} ${meta.author.name}`,
+     globals: Object.assign({}, ...Object.keys(meta.dependencies || {}).filter(key => /^d3-/.test(key)).map(key => ({[key]: "d3"})))
+   },
+   plugins: []
diff --git a/debian/patches/series b/debian/patches/series
index d95325b..ba4f208 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1 +1,2 @@
 remove-unsupported-syntax.patch
+reproducible_build.diff
-- 
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