Support specifying multiple values for a single key

In the hash_to_arguments method of GovukGuix::Job.

1 files changed, 5 insertions, 3 deletions

diff --git a/app/jobs/govuk_guix/job.rb b/app/jobs/govuk_guix/job.rb
index fdac507..357c8ca 100644
--- a/app/jobs/govuk_guix/job.rb
+++ b/app/jobs/govuk_guix/job.rb
@@ -81,13 +81,15 @@ class GovukGuix::Job < Que::Job
   end
 
   def hash_to_arguments(hash)
-    hash.map do |(key, value)|
+    hash.flat_map do |(key, value)|
       transformed_key = key.tr('_', '-')
 
       if value == true
-        "--#{transformed_key}"
+        ["--#{transformed_key}"]
+      elsif value.kind_of?(Array)
+        value.map { |x| "--#{transformed_key}=#{x}" }
       else
-        "--#{transformed_key}=#{value}"
+        ["--#{transformed_key}=#{value}"]
       end
     end
   end