[pkg-go] Bug#877928: cadvisor: please make the build reproducible

[Chris Lamb]

Source: cadvisor
Version: 0.25.0+dfsg-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 cadvisor could not be built reproducibly as it encodes the
current year into a copyright header.

Patch attached.

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


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
diff --git a/build/assets.sh b/build/assets.sh
index 0eff872..2cbf903 100755
--- a/build/assets.sh
+++ b/build/assets.sh
@@ -35,7 +35,7 @@ build_asset () {
   local output_path=$2
   local input_dirs=${@:3}
   local tmp_output=$(mktemp)
-  local year=$(date +%Y)
+  local year="$(date --utc --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +%Y)"
 
   go-bindata -nometadata -o $output_path -pkg $package $input_dirs
   cat build/boilerplate/boilerplate.go.txt | sed "s/YEAR/$year/" > "${tmp_output}"