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#!/usr/bin/ruby
require 'optparse'
require 'yaml'
require 'fileutils'
require 'pathname'
@options = {}
@bitness = {
'i386' => 32,
'amd64' => 64,
}
def system!(cmd)
system(cmd) or raise "failed to run #{cmd}"
end
def sanitize(str, where)
raise "unsanitary string in #{where}" if (str =~ /[^\w.-]/)
str
end
def sanitize_path(str, where)
raise "unsanitary string in #{where}" if (str =~ /[^\w\/.-]/)
str
end
def info(str)
puts str unless @options[:quiet]
end
def build_one_configuration(suite, arch, build_desc, reference_datetime)
bits = @bitness[arch] or raise "unknown architecture ${arch}"
suitearch = "#{suite}-#{arch}"
info "Stopping target if it is up"
system "stop-target"
sleep 1
unless @options[:skip_image]
info "Making a new image copy"
system! "cp base-#{suitearch}.qcow2 target-#{suitearch}.qcow2"
end
info "Starting target"
system! "start-target #{bits} #{suitearch}&"
$stdout.write "Checking if target is up"
(1..10).each do
system "on-target true 2> /dev/null" and break
sleep 2
$stdout.write '.'
end
info ''
system! "on-target true"
info "Preparing build environment"
system! "on-target bash < target-bin/init-build.sh"
build_desc["files"].each do |filename|
filename = sanitize(filename, "files section")
system! "cd inputs && copy-to-target #{filename} build/"
end
info "Installing additional packages (log in var/install.log)"
system! "on-target -u root DEBIAN_FRONTEND=noninteractive apt-get -y install #{build_desc["packages"].join(" ")} > var/install.log 2>&1"
info "Grabbing package manifest"
system! "on-target -u root bash < target-bin/grab-packages.sh > var/base-#{suitearch}.manifest"
info "Creating build script (var/build-script)"
File.open("var/build-script", "w") do |script|
script.puts "#!/bin/bash"
script.puts "set -e"
script.puts "export OUTDIR=$HOME/out"
script.puts "GBUILD_BITS=#{bits}"
script.puts "MAKEOPTS=(-j2)"
(ref_date, ref_time) = reference_datetime.split
script.puts "REFERENCE_DATETIME='#{reference_datetime}'"
script.puts "REFERENCE_DATE='#{ref_date}'"
script.puts "REFERENCE_TIME='#{ref_time}'"
script.puts
build_desc["remotes"].each do |remote|
script.puts "git clone -q #{remote["url"]} build/#{remote["dir"]}"
script.puts "(cd build/#{remote["dir"]} && git checkout -q #{remote["commit"]})"
end
script.puts "cd build"
script.puts build_desc["script"]
end
info "Running build script (log in var/build.log)"
system! "on-target bash < var/build-script > var/build.log 2>&1"
end
################################
OptionParser.new do |opts|
opts.banner = "Usage: build [options] <build-description>.yml"
opts.on("-i", "--skip-image", "reuse current target image") do |v|
@options[:skip_image] = v
end
opts.on("-q", "--quiet", "be quiet") do |v|
@options[:skip_image] = v
end
end.parse!
base_dir = Pathname.new(__FILE__).expand_path.dirname.parent
libexec_dir = base_dir + 'libexec'
ENV['PATH'] = libexec_dir.to_s + ":" + ENV['PATH']
ENV['GITIAN_BASE'] = base_dir.to_s
build_desc_file = ARGV.shift or raise "must supply YAML build description file"
build_desc = YAML.load_file(build_desc_file)
in_sums = []
build_dir = 'build'
result_dir = 'result'
FileUtils.rm_rf(build_dir)
FileUtils.mkdir(build_dir)
FileUtils.mkdir_p(result_dir)
package_name = build_desc["name"] or raise "must supply name"
package_name = sanitize(package_name, "package name")
suites = build_desc["suites"] or raise "must supply suites"
archs = build_desc["architectures"] or raise "must supply architectures"
reference_datetime = build_desc["reference_datetime"] or raise "must supply reference_datetime"
desc_sum = `sha256sum #{build_desc_file}`
desc_sum = desc_sum.sub(build_desc_file, "#{package_name}-desc.yml")
in_sums << desc_sum
build_desc["files"].each do |filename|
filename = sanitize(filename, "files section")
in_sums << `cd inputs && sha256sum #{filename}`
end
base_manifests = YAML::Omap.new
suites.each do |suite|
suite = sanitize(suite, "suite")
archs.each do |arch|
info "--- Building for #{suite} #{arch} ---"
arch = sanitize(arch, "architecture")
# Build!
build_one_configuration(suite, arch, build_desc, reference_datetime)
info "Grabbing results"
system! "copy-from-target out #{build_dir}"
base_manifest = File.read("var/base-#{suite}-#{arch}.manifest")
base_manifests["#{suite}-#{arch}"] = base_manifest
end
end
out_dir = File.join(build_dir, "out")
out_sums = {}
info "Generating report"
Dir.glob(File.join(out_dir, '**', '*')).sort.each do |file_in_out|
next if File.directory?(file_in_out)
file = file_in_out.sub(out_dir + File::SEPARATOR, '')
file = sanitize_path(file, file_in_out)
out_sums[file] = `cd #{out_dir} && sha256sum #{file}`
raise "failed to sum #{file}" unless $? == 0
puts out_sums[file] unless @options[:quiet]
end
out_manifest = out_sums.keys.sort.map { |key| out_sums[key] }.join('')
in_manifest = in_sums.join('')
# Use Omap to keep result deterministic
report = YAML::Omap[
'out_manifest', out_manifest,
'in_manifest', in_manifest,
'base_manifests', base_manifests,
]
result_file = "#{package_name}-res.yml"
File.open(File.join(result_dir, result_file), "w") do |io|
io.write report.to_yaml
end
system!("cd #{result_dir} && sha256sum #{result_file}") unless @options[:quiet]
info "Done."