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86 lines
2.4 KiB
86 lines
2.4 KiB
4 years ago
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require "bento/common"
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class NormalizeRunner
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include Common
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include PackerExec
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attr_reader :templates, :build_timestamp, :debug, :override_version
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def initialize(opts)
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@templates = opts.template_files
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@debug = opts.debug
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@modified = []
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@build_timestamp = Time.now.gmtime.strftime("%Y%m%d%H%M%S")
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end
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def start
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banner("Normalizing for templates:")
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templates.each { |t| puts "- #{t}" }
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time = Benchmark.measure do
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templates.each do |file|
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bento_dir = Dir.pwd
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dir = File.dirname(file)
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template = File.basename(file)
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Dir.chdir dir
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validate(template)
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Dir.chdir(bento_dir)
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end
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end
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unless @modified.empty?
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info("")
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info("The following templates were modified:")
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@modified.sort.each { |template| info(" * #{template}") }
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end
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banner("Normalizing finished in #{duration(time.real)}.")
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end
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private
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def checksum(file)
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Digest::MD5.file(file).hexdigest
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end
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def fix(template)
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file = "#{template}.json"
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banner("[#{template}] Fixing")
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original_checksum = checksum(file)
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output = `packer fix #{file}`
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raise "[#{template}] Error fixing, exited #{$CHILD_STATUS}" if $CHILD_STATUS.exitstatus != 0
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# preserve ampersands in shell commands,
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# see: https://github.com/hashicorp/packer/issues/784
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output.gsub!("\\u0026", "&")
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File.open(file, "wb") { |dest| dest.write(output) }
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fixed_checksum = checksum(file)
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if original_checksum == fixed_checksum
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puts("No changes made.")
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else
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warn("Template #{template} has been modified.")
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@modified << template
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end
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end
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def packer_validate_cmd(template, var_file)
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vars = "#{template}.variables.json"
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cmd = %W{packer validate -var-file=#{var_file} #{template}.json}
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cmd.insert(2, "-var-file=#{vars}") if File.exist?(vars)
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cmd
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end
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def validate(template)
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for_packer_run_with(template) do |md_file, var_file|
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cmd = packer_validate_cmd(template, var_file.path)
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banner("[#{template}] Validating: '#{cmd.join(" ")}'")
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if debug
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banner("[#{template}] DEBUG: var_file(#{var_file.path}) is:")
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puts IO.read(var_file.path)
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banner("[#{template}] DEBUG: md_file(#{md_file.path}) is:")
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puts IO.read(md_file.path)
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end
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system(*cmd) || raise("[#{template}] Error validating, exited #{$CHILD_STATUS}")
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end
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end
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end
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