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require 'rake/clean'
require 'yaml'

begin
require 'rspec/core/rake_task'
RSpec::Core::RakeTask.new(:spec)
rescue LoadError
puts 'RSpec not loaded'
end

begin
require 'rubocop/rake_task'
RuboCop::RakeTask.new
rescue LoadError
puts 'Rubocop not loaded'
end

BUILD_KATELLO = !ENV.key?('EXCLUDE_KATELLO')

BUILDDIR = File.expand_path(ENV['BUILDDIR'] || '_build')
PREFIX = ENV['PREFIX'] || '/usr/local'
BINDIR = ENV['BINDIR'] || "#{PREFIX}/bin"
LIBDIR = ENV['LIBDIR'] || "#{PREFIX}/lib"
SBINDIR = ENV['SBINDIR'] || "#{PREFIX}/sbin"
INCLUDEDIR = ENV['INCLUDEDIR'] || "#{PREFIX}/include"
SYSCONFDIR = ENV['SYSCONFDIR'] || "#{PREFIX}/etc"
LOCALSTATEDIR = ENV['LOCALSTATEDIR'] || "#{PREFIX}/var"
SHAREDSTAREDIR = ENV['SHAREDSTAREDIR'] || "#{LOCALSTATEDIR}/lib"
LOGDIR = ENV['LOGDIR'] || "#{LOCALSTATEDIR}/log"
DATAROOTDIR = DATADIR = ENV['DATAROOTDIR'] || "#{PREFIX}/share"
MANDIR = ENV['MANDIR'] || "#{DATAROOTDIR}/man"
PKGDIR = ENV['PKGDIR'] || File.expand_path('pkg')

desc 'Install the Puppet modules'
task :modules => "#{BUILDDIR}/modules"

if BUILD_KATELLO
SCENARIOS = ['foreman', 'foreman-proxy-content', 'katello'].freeze
CERTS_SCENARIOS = ['foreman-proxy-certs'].freeze
else
SCENARIOS = ['foreman'].freeze
CERTS_SCENARIOS = [].freeze
end

exporter_dirs = ENV['PATH'].split(':').push('/usr/bin', ENV['KAFO_EXPORTER'])
exporter = exporter_dirs.find { |dir| File.executable? "#{dir}/kafo-export-params" } or
raise("kafo-export-paths is missing from PATH, install kafo")

directory BUILDDIR
directory PKGDIR
directory "#{BUILDDIR}/parser_cache"
file "#{BUILDDIR}/parser_cache" => BUILDDIR

SCENARIOS.each do |scenario|
config = "config/#{scenario}.yaml"
file "#{BUILDDIR}/#{scenario}.yaml" => [config, BUILDDIR] do |t|
cp t.prerequisites.first, t.name

scenario_config_replacements = {
'answer_file' => "#{SYSCONFDIR}/foreman-installer/scenarios.d/#{scenario}-answers.yaml",
'hiera_config' => "#{DATADIR}/foreman-installer/config/foreman-hiera.yaml",
'installer_dir' => "#{DATADIR}/foreman-installer",
'log_dir' => "#{LOGDIR}/foreman-installer",
'module_dirs' => "#{DATADIR}/foreman-installer/modules",
'parser_cache_path' => "#{DATADIR}/foreman-installer/parser_cache/#{scenario}.yaml",
}

scenario_config_replacements.each do |setting, value|
sh format('sed -i "s#\(.*%s:\).*#\1 %s#" %s', setting, value, t.name)
end

if ENV['KAFO_MODULES_DIR']
sh format('sed -i "s#.*\(:kafo_modules_dir:\).*#\1 %s#" %s', ENV['KAFO_MODULES_DIR'], t.name)
end
end

file "#{BUILDDIR}/parser_cache/#{scenario}.yaml" => [config, "#{BUILDDIR}/modules", "#{BUILDDIR}/parser_cache"] do |t|
sh "#{exporter}/kafo-export-params -c #{t.prerequisites.first} -f parsercache --no-parser-cache -o #{t.name}"
end

file "#{BUILDDIR}/#{scenario}-options.asciidoc" => [config, "#{BUILDDIR}/parser_cache/#{scenario}.yaml"] do |t|
sh "#{exporter}/kafo-export-params -c #{t.prerequisites.first} -f asciidoc -o #{t.name}"
end

# Store migration scripts under DATADIR, symlinked back into SYSCONFDIR and keep .applied file in SYSCONFDIR
directory "#{BUILDDIR}/#{scenario}.migrations"
file "#{BUILDDIR}/#{scenario}.migrations" => BUILDDIR do |t|
# These symlinks are broken until installation, so don't reference them in rake file tasks
ln_s "#{DATADIR}/foreman-installer/config/#{scenario}.migrations", "#{t.name}/#{scenario}.migrations"
ln_s "#{SYSCONFDIR}/foreman-installer/scenarios.d/#{scenario}-migrations-applied", "#{t.name}/.applied"
end

file "#{BUILDDIR}/config/#{scenario}.migrations" => ["config/#{scenario}.migrations", "#{BUILDDIR}/config"] do |t|
cp_r t.prerequisites.first, t.name
end

file "#{BUILDDIR}/config/#{scenario}.yaml" => ["config/#{scenario}.yaml", "#{BUILDDIR}/config"] do |t|
cp t.prerequisites.first, t.name
end

file "#{BUILDDIR}/config/#{scenario}-answers.yaml" => ["config/#{scenario}-answers.yaml", "#{BUILDDIR}/config"] do |t|
cp t.prerequisites.first, t.name
end

# Generate an empty applied migrations file to ensure the symlink is preserved
file "#{BUILDDIR}/#{scenario}-migrations-applied" => BUILDDIR do |t|
File.open(t.name, 'w') { |f| f.write([].to_yaml) }
end
end

# Special handling for katello certs
CERTS_SCENARIOS.each do |scenario|
config = "katello_certs/config/#{scenario}.yaml"
file "#{BUILDDIR}/#{scenario}.yaml" => [config, BUILDDIR] do |t|
cp t.prerequisites.first, t.name

scenario_config_replacements = {
'answer_file' => "#{DATADIR}/foreman-installer/katello-certs/scenarios.d/#{scenario}-answers.yaml",
'installer_dir' => "#{DATADIR}/foreman-installer/katello-certs",
'log_dir' => "#{LOGDIR}/foreman-installer",
'module_dirs' => "#{DATADIR}/foreman-installer/modules",
'parser_cache_path' => "#{DATADIR}/foreman-installer/parser_cache/#{scenario}.yaml",
}

scenario_config_replacements.each do |setting, value|
sh format('sed -i "s#\(.*%s:\).*#\1 %s#" %s', setting, value, t.name)
end
end

file "#{BUILDDIR}/parser_cache/#{scenario}.yaml" => [config, "#{BUILDDIR}/modules", "#{BUILDDIR}/parser_cache"] do |t|
sh "#{exporter}/kafo-export-params -c #{t.prerequisites.first} -f parsercache --no-parser-cache -o #{t.name}"
end

file "#{BUILDDIR}/#{scenario}-options.asciidoc" => [config, "#{BUILDDIR}/parser_cache/#{scenario}.yaml"] do |t|
sh "#{exporter}/kafo-export-params -c #{t.prerequisites.first} -f asciidoc -o #{t.name}"
end
end

file "#{BUILDDIR}/foreman-installer" => 'bin/foreman-installer' do |t|
cp t.prerequisites[0], t.name
sh format('sed -i "s#\(^.*CONFIG_DIR = \).*#CONFIG_DIR = %s#" %s', "'#{SYSCONFDIR}/foreman-installer/scenarios.d/'", t.name)
end

file "#{BUILDDIR}/foreman-proxy-certs-generate" => 'bin/foreman-proxy-certs-generate' do |t|
cp t.prerequisites[0], t.name
sh format('sed -i "s#^.*\(CONFIG_DIR = \).*#\1%s#" %s', "'#{DATADIR}/foreman-installer/katello-certs/scenarios.d/'", t.name)
sh format('sed -i "s#^.*\(LAST_SCENARIO_PATH = \).*#\1%s#" %s', "'#{SYSCONFDIR}/foreman-installer/scenarios.d/last_scenario.yaml'", t.name)
end

file "#{BUILDDIR}/katello-certs-check" => 'bin/katello-certs-check' do |t|
cp t.prerequisites[0], t.name
end

file "#{BUILDDIR}/foreman-installer.8.asciidoc" =>
['man/foreman-installer.8.asciidoc', "#{BUILDDIR}/foreman-options.asciidoc"] do |t|
man_file = t.prerequisites[0]
options_file = t.prerequisites[1]

puts "Writing combined manual page to #{t.name}"
options = File.read(options_file)
File.open(t.name, 'w') do |output|
File.open(man_file, 'r') do |input|
input.each_line { |line| output.puts line.gsub(/@@PARAMETERS@@/, options) }
end
end
end

file "#{BUILDDIR}/foreman-installer.8" => "#{BUILDDIR}/foreman-installer.8.asciidoc" do |_t|
if ENV['NO_MAN_PAGE']
touch "#{BUILDDIR}/foreman-installer.8"
else
sh "a2x -d manpage -f manpage #{BUILDDIR}/foreman-installer.8.asciidoc -L"
end
end

directory "#{BUILDDIR}/modules"
file "#{BUILDDIR}/modules" => BUILDDIR do |_t|
if Dir["modules/*"].empty?
sh "librarian-puppet install --verbose --path #{BUILDDIR}/modules"
else
cp_r "modules/", BUILDDIR
end
end

directory "#{BUILDDIR}/config"

file "#{BUILDDIR}/config/config_header.txt" => ['config/config_header.txt', "#{BUILDDIR}/config"] do |t|
cp t.prerequisites[0], t.name
end

file "#{BUILDDIR}/config/foreman-hiera.yaml" => ['config/foreman-hiera.yaml', "#{BUILDDIR}/config"] do |t|
cp t.prerequisites[0], t.name
sh format('sed -i "s#custom.yaml#%s#" %s', "#{SYSCONFDIR}/foreman-installer/custom-hiera.yaml", t.name)
end

directory "#{BUILDDIR}/config/foreman.hiera"
file "#{BUILDDIR}/config/foreman.hiera" => ['config/foreman.hiera', "#{BUILDDIR}/config"] do |t|
cp_r t.prerequisites[0], t.prerequisites[1]
end

namespace :build do
task :base => [
'VERSION',
BUILDDIR,
"#{BUILDDIR}/config/config_header.txt",
"#{BUILDDIR}/config/foreman-hiera.yaml",
"#{BUILDDIR}/config/foreman.hiera",
"#{BUILDDIR}/foreman-installer",
"#{BUILDDIR}/foreman-installer.8",
"#{BUILDDIR}/modules",
]

if BUILD_KATELLO
task :base => [
"#{BUILDDIR}/foreman-proxy-certs-generate",
"#{BUILDDIR}/katello-certs-check",
]
end

task :scenarios => [SCENARIOS.map do |scenario|
[
"#{BUILDDIR}/#{scenario}.yaml",
"#{BUILDDIR}/#{scenario}.migrations",
"#{BUILDDIR}/#{scenario}-migrations-applied",
"#{BUILDDIR}/config/#{scenario}.yaml",
"#{BUILDDIR}/config/#{scenario}-answers.yaml",
"#{BUILDDIR}/config/#{scenario}.migrations",
"#{BUILDDIR}/parser_cache/#{scenario}.yaml",
]
end].flatten

task :certs_scenarios => [CERTS_SCENARIOS.map do |scenario|
[
"#{BUILDDIR}/#{scenario}.yaml",
"#{BUILDDIR}/parser_cache/#{scenario}.yaml",
]
end].flatten
end

task :build => ['build:base', 'build:scenarios', 'build:certs_scenarios']

task :install => :build do
mkdir_p "#{DATADIR}/foreman-installer"
cp_r Dir.glob('{checks,hooks,VERSION,README.md,LICENSE}'), "#{DATADIR}/foreman-installer"
cp_r "#{BUILDDIR}/config", "#{DATADIR}/foreman-installer"

mkdir_p "#{SYSCONFDIR}/foreman-installer/scenarios.d"
SCENARIOS.each do |scenario|
cp "#{BUILDDIR}/#{scenario}.yaml", "#{SYSCONFDIR}/foreman-installer/scenarios.d/"
cp "config/#{scenario}-answers.yaml", "#{SYSCONFDIR}/foreman-installer/scenarios.d/#{scenario}-answers.yaml"
cp "#{BUILDDIR}/#{scenario}-migrations-applied", "#{SYSCONFDIR}/foreman-installer/scenarios.d/#{scenario}-migrations-applied"
copy_entry "#{BUILDDIR}/#{scenario}.migrations/#{scenario}.migrations", "#{SYSCONFDIR}/foreman-installer/scenarios.d/#{scenario}.migrations"
copy_entry "#{BUILDDIR}/#{scenario}.migrations/.applied", "#{DATADIR}/foreman-installer/config/#{scenario}.migrations/.applied"
end

if CERTS_SCENARIOS.any?
mkdir_p "#{DATADIR}/foreman-installer/katello-certs/scenarios.d"
cp_r 'katello_certs/hooks', "#{DATADIR}/foreman-installer/katello-certs"
end
CERTS_SCENARIOS.each do |scenario|
cp "#{BUILDDIR}/#{scenario}.yaml", "#{DATADIR}/foreman-installer/katello-certs/scenarios.d/#{scenario}.yaml"
cp "katello_certs/config/#{scenario}-answers.yaml", "#{DATADIR}/foreman-installer/katello-certs/scenarios.d/#{scenario}-answers.yaml"
end

cp_r "#{BUILDDIR}/modules", "#{DATADIR}/foreman-installer", :preserve => true
cp_r "#{BUILDDIR}/parser_cache", "#{DATADIR}/foreman-installer"

mkdir_p "#{SYSCONFDIR}/foreman-installer"
cp "config/custom-hiera.yaml", "#{SYSCONFDIR}/foreman-installer"

mkdir_p SBINDIR
install "#{BUILDDIR}/foreman-installer", "#{SBINDIR}/foreman-installer", :mode => 0o755, :verbose => true

if BUILD_KATELLO
install "#{BUILDDIR}/foreman-proxy-certs-generate", "#{SBINDIR}/foreman-proxy-certs-generate", :mode => 0o755, :verbose => true
install "#{BUILDDIR}/katello-certs-check", "#{SBINDIR}/katello-certs-check", :mode => 0o755, :verbose => true
end

mkdir_p "#{MANDIR}/man8"
cp "#{BUILDDIR}/foreman-installer.8", "#{MANDIR}/man8/"

mkdir_p "#{LOGDIR}/foreman-installer"
end

task :default => :build

CLEAN.include [
BUILDDIR,
PKGDIR,
]

task :installation_tests do
sh "bundle exec #{PREFIX}/sbin/foreman-installer --help --scenario foreman --trace"
sh "bundle exec #{PREFIX}/sbin/foreman-installer --help --scenario foreman-proxy-content --trace"
sh "bundle exec #{PREFIX}/sbin/foreman-installer --help --scenario katello --trace"
sh "bundle exec #{PREFIX}/sbin/foreman-proxy-certs-generate --help --trace"
sh "bundle exec #{PREFIX}/sbin/foreman-proxy-certs-generate --help | grep -q certs-update-server"
end

namespace :pkg do
desc 'Generate package source tar.bz2'
task :generate_source => [PKGDIR, "#{BUILDDIR}/modules"] do
version = File.read('VERSION').chomp
raise "can't find VERSION" if version.empty?

filename = "#{PKGDIR}/foreman-installer-#{version}.tar.bz2"
File.unlink(filename) if File.exist?(filename)
Dir.chdir(BUILDDIR) { `tar -cf #{BUILDDIR}/modules.tar --exclude-vcs --exclude=spec --transform=s,^,foreman-installer-#{version}/, modules/` }
`git archive --prefix=foreman-installer-#{version}/ HEAD > #{PKGDIR}/foreman-installer-#{version}.tar`
`tar --concatenate --file=#{PKGDIR}/foreman-installer-#{version}.tar #{BUILDDIR}/modules.tar`
`bzip2 -9 #{PKGDIR}/foreman-installer-#{version}.tar`
puts filename
end
end

begin
require_relative 'util/fake_puppet_file'
rescue LoadError
# Some dependency missing
else
desc 'Pin all the modules in Puppetfile to released versions instead of git branches'
task :pin_modules do
filename = 'Puppetfile'

fake = FakePuppetfile.new
fake.instance_eval { eval(File.read(filename), filename, 1) }

File.open(filename, 'w') do |file|
fake.content do |line|
file.write("#{line}\n")
end
end
end
end
(12-12/13)