From 18e5cc0bb2a752182c807c1d2f72c9b0e0b3061b Mon Sep 17 00:00:00 2001
From: Christophe Bliard <christophe.bliard@trux.info>
Date: Mon, 29 Jan 2024 12:22:03 +0100
Subject: [PATCH] Mark files in etc/ as config files (#183)

This prevents accidentaly overwriting customizations made to those files when upgrading a package.
---
 lib/pkgr/distributions/base.rb | 7 +++++++
 lib/pkgr/fpm_command.rb        | 1 +
 2 files changed, 8 insertions(+)

diff --git a/lib/pkgr/distributions/base.rb b/lib/pkgr/distributions/base.rb
index dd11244..fd33d95 100644
--- a/lib/pkgr/distributions/base.rb
+++ b/lib/pkgr/distributions/base.rb
@@ -127,6 +127,13 @@ def templates
         list
       end
 
+      def config_files
+        templates
+          .filter { |template| template.is_a?(Templates::FileTemplate) }
+          .map(&:target)
+          .filter { |target| target.start_with?("etc/") }
+      end
+
       # Returns a list of <Process, FileTemplate> tuples.
       def initializers_for(app_name, procfile_entries)
         list = []
diff --git a/lib/pkgr/fpm_command.rb b/lib/pkgr/fpm_command.rb
index 82940d4..5c6a1ef 100644
--- a/lib/pkgr/fpm_command.rb
+++ b/lib/pkgr/fpm_command.rb
@@ -40,6 +40,7 @@ def args
       list << "--directories" << config.directories unless config.directories.nil?
       list << "--rpm-digest" << "sha256" if distribution.rpm?
       distribution.dependencies(config.dependencies).each{|d| list << "-d" << d}
+      distribution.config_files.each{|f| list << "--config-files" << f}
       list.compact
     end
   end