RHEL8

lib/travis/build/addons.rb

@@ -2,6 +2,7 @@
 require 'travis/build/addons/apt'
 require 'travis/build/addons/apt_packages'
 require 'travis/build/addons/apt_retries'
+require 'travis/build/addons/yum'
 require 'travis/build/addons/snaps'
 require 'travis/build/addons/artifacts'
 require 'travis/build/addons/chrome'

lib/travis/build/addons/yum.rb

@@ -0,0 +1,68 @@
+require 'travis/build/addons/base'
+require 'shellwords'
+
+module Travis
+  module Build
+    class Addons
+      class Yum < Base
+        SUPPORTED_OPERATING_SYSTEMS = %w[
+          linux
+          /^linux.*/
+        ].freeze
+
+        SUPPORTED_DISTS = %w(
+          rhel
+        ).freeze
+
+        def before_prepare?
+          SUPPORTED_OPERATING_SYSTEMS.any? do |os_match|
+            data[:config][:os].to_s == os_match
+          end
+        end
+
+        def before_prepare
+          return if config_yum.empty?
+          sh.newline
+          sh.fold('yum') do
+            install_yum
+          end
+          sh.newline
+        end
+
+        def before_configure?
+          config
+        end
+
+        def before_configure
+          sh.echo "Configuring default yum options", ansi: :yellow
+          tmp_dest = "${TRAVIS_TMPDIR}/99-travis-yum-conf"
+          sh.file tmp_dest, <<~YUM_CONF
+            assumeyes=1
+            retries=5
+            timeout=30
+          YUM_CONF
+          sh.cmd %Q{sudo mv #{tmp_dest} ${TRAVIS_ROOT}/usr/local/etc/yum.conf}
+        end
+
+        def config
+          @config ||= Hash(super)
+        end
+
+        def install_yum
+          sh.echo "Installing #{config_yum.count} packages", ansi: :yellow
+
+          packages = config_yum.map{|v| Shellwords.escape(v)}.join(' ')
+          sh.cmd "sudo yum install -y #{packages}", echo: true, timing: true, assert: true
+        end
+
+        def config_yum
+          @config_yum ||= Array(config[:packages]).flatten.compact
+        rescue TypeError => e
+          if e.message =~ /no implicit conversion of Symbol into Integer/
+            raise Travis::Build::YumConfigError.new
+          end
+        end
+      end
+    end
+  end
+end

lib/travis/build/appliances/disable_initramfs.rb

@@ -5,7 +5,7 @@ module Build
     module Appliances
       class DisableInitramfs < Base
         def apply
-          sh.raw "if [ ! $(uname|egrep 'Darwin|FreeBSD') ]; then echo update_initramfs=no | sudo tee -a /etc/initramfs-tools/update-initramfs.conf > /dev/null; fi"
+          sh.raw "if [[ ! $(uname|egrep 'Darwin|FreeBSD') && ! -f /etc/redhat-release ]]; then echo update_initramfs=no | sudo tee -a /etc/initramfs-tools/update-initramfs.conf > /dev/null; fi"
         end
       end
     end

lib/travis/build/bash/travis_setup_postgresql.bash

@@ -19,6 +19,9 @@ travis_setup_postgresql() {
     focal)
       version='12'
       ;;
+    rhel8)
+      version='12'
+      ;;
     *)
       echo -e "${ANSI_RED}Unrecognized operating system.${ANSI_CLEAR}"
       ;;

lib/travis/build/errors.rb

@@ -81,6 +81,17 @@ def doc_path
         '/user/installing-dependencies'
       end
     end
+
+
+    class YumConfigError < CompilationError
+      def initialize(msg = "\\`yum\\` should be a list.")
+        super
+      end
+
+      def doc_path
+        '/user/installing-dependencies'
+      end
+    end
 
     class GithubAppsTokenFetchError < CompilationError
       def initialize(msg = "Unable to fetch GitHub Apps Token. GitHub may be unavailable. " \

spec/build/script/shared/appliances/disable_initramfs.rb

@@ -1,5 +1,5 @@
 shared_examples_for 'disables updating initramfs' do
-  let(:disable_initramfs) { %(if [ ! $(uname|egrep 'Darwin|FreeBSD') ]; then echo update_initramfs=no | sudo tee -a /etc/initramfs-tools/update-initramfs.conf > /dev/null; fi) }
+  let(:disable_initramfs) { %(if [[ ! $(uname|egrep 'Darwin|FreeBSD') && ! -f /etc/redhat-release ]]; then echo update_initramfs=no | sudo tee -a /etc/initramfs-tools/update-initramfs.conf > /dev/null; fi) }
 
   it 'disables updating initramfs' do
     should include_sexp [:raw, disable_initramfs]