436 lines
9.8 KiB
Crystal
436 lines
9.8 KiB
Crystal
require "uuid"
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require "uri"
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require "file_utils"
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require "specfileparser"
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require "./context.cr"
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require "./package.cr"
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require "./instructions.cr"
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require "./sources.cr"
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require "./exception.cr"
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module FileUtils
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def self.find(directory, &block : Proc(String, Nil))
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Dir.each_child directory do |child|
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child_path = directory + "/" + child
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yield child_path
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if File.directory? child_path
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self.find child_path, &block
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end
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end
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end
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end
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class Package::Recipe
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@context : Context
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# Core recipe informations.
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getter name : String
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getter version : String
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getter release = 1
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property url : String?
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property description : String?
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# Informations not specific to individual packages.
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getter sources : Sources
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getter packages : Array(Package)
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property packager : String?
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property maintainer : String?
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getter contributors = Array(String).new
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# Relations to other packages.
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# FIXME: `dependencies` needs splitting between run-time and build-time.
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getter run_dependencies = Array(String).new
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getter build_dependencies = Array(String).new
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getter provides = Array(String).new
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getter conflicts = Array(String).new
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# Build instructions, helpers and other build-only data.
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setter dirname : String? # matching getter defined manually later.
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getter instructions = Instructions.new
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getter options = Hash(String, String).new
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getter sources = Sources.new
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getter packages = Array(Package).new
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getter watch_script : String?
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@prefix : String?
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property recipe_directory = "."
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@working_uuid : UUID = UUID.random
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def initialize(@context, @name, @version)
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end
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def self.new(context, name, version)
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instance = Recipe.allocate.tap &.initialize(context, name, version)
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instance.packages << Package.new instance, false, instance.fake_root_directory
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instance
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end
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def initialize(@context, filename : String)
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specs = SpecFileParser.parse filename, {
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"pkg" => fake_root_directory,
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"prefix" => prefix
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}
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name : String? = nil
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version : String? = nil
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@recipe_directory = File.dirname filename
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raise "Could not parse `#{filename}`" if specs.nil?
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specs.assignments.each do |key, value|
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case key
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when "name"
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name = value.as_s
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when "version"
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version = value.as_s
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when "release"
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@release = value.as_s.to_i
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when "url"
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@url = value.as_s
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when "description"
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@description = value.as_s_or_ls
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when "packager"
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@packager = value.as_s
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when "maintainer"
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@maintainer = value.as_s
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when "sources"
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value.as_a_or_s.each do |source|
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@sources << source
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end
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when "configure"
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@instructions.configure << value.as_s_or_ls
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when "build"
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@instructions.build << value.as_s_or_ls
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when "install"
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@instructions.install << value.as_s_or_ls
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when "dirname"
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@dirname = value.as_s
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when "prefix"
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@prefix = value.as_s
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when "dependencies"
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value.as_a_or_s.each do |atom|
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@run_dependencies << atom
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@build_dependencies << atom
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end
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when "build-dependencies"
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value.as_a_or_s.each do |atom|
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@build_dependencies << atom
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end
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when "run-dependencies"
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value.as_a_or_s.each do |atom|
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@run_dependencies << atom
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end
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when "conflicts"
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value.as_a_or_s.each do |atom|
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@conflicts << atom
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end
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when "provides"
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value.as_a_or_s.each do |atom|
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@provides << atom
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end
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when "options"
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value.as_a_or_s.each do |option|
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match = option.split(':').map(
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&.gsub(/^[ \t]*/, "").gsub(/[ \t]*$/, ""))
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if match.size != 2
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STDERR.puts "WARNING: misformed option: #{option}"
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next
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end
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key, value = match
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@options[key] = value
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end
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when "watch"
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@watch_script = value.as_s_or_ls
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end
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end
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raise "`name` was not provided" unless name
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raise "`version` was not provided" unless version
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@name = name
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@version = version
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# Packages can only be created once @name and @version exist!
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@packages << Package.new self, false, fake_root_directory
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specs.sections.each do |section|
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case section.name
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when "split"
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@packages << Package.new self, section
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end
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end
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end
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def working_directory
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"#{@context.working_directory}/#{@working_uuid}"
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end
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def building_directory
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"#{working_directory}/build"
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end
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def fake_root_directory
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"#{working_directory}/root"
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end
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def dirname
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@dirname || "#{name}-#{version}"
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end
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def prefix : String
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@prefix || @context.prefixes[0]? || "/usr"
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end
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def download
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sources.each do |url|
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next if url.scheme == "file"
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filename = @context.sources_directory + "/" + url.filename
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unless File.exists? filename
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status = @context.run @context.sources_directory, "wget", [ url.to_s, "-O", filename ]
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raise DownloadError.new self, url unless status.success?
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end
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end
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end
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def extract
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Dir.mkdir_p building_directory
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sources.each do |url|
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basename = url.filename
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if basename.match /\.(tar\.(gz|xz|bz2|lzma)|tgz)$/
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puts ":: Extracting '#{url.filename}'"
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status = @context.run(
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building_directory,
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"bsdtar", [
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"xf",
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@context.sources_directory + "/" + url.filename
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]
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)
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raise ExtractionError.new self, url unless status.success?
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else
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puts ":: Copying '#{url.filename}'"
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directory = if url.scheme == "file"
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@recipe_directory
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else
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@context.sources_directory
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end
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FileUtils.cp "#{directory}/#{url.filename}",
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"#{building_directory}/#{url.filename}"
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end
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end
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end
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# TODO:
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# - Export packaging directory in $PKG.
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# - Add (pre|post)-(configure|build|install) instructions.
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# - Have some instructions be non-critical, like the (pre|post] ones.
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# - Be careful about return values, flee from everything if something
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# goes somehow wrong.
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# - Make things thread-safe. (those ENV[]= calls are definitely not)
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def build
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Dir.mkdir_p fake_root_directory
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ENV["PKG"] = fake_root_directory
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# Safety precautions.
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old_dir = Dir.current
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instructions.to_a.each do |instruction|
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if instruction.run(@context, self).failed?
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raise BuildError.new self, "Building (#{instruction.phase} phase) failed."
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break
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end
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end
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Dir.cd old_dir
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ENV["PKG"] = nil
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if Dir.children(fake_root_directory).size == 0
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raise BuildError.new self, "No file was installed in the fake root."
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end
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do_splits
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end
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private def do_splits
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(@packages + auto_splits).each do |package|
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next if package == @packages[0]
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files = package.files || [] of String
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file_patterns = package.file_patterns || [] of Regex
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files_to_split = [] of String
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files.each do |file|
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origin = "#{fake_root_directory}#{file}"
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if File.exists? origin
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files_to_split << file
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end
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end
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FileUtils.find fake_root_directory do |file|
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file = file[fake_root_directory.size..file.size]
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files_to_split << file if file_patterns.any? &.match file
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end
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# FIXME: What do we do if those are not on the filesystem?
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files_to_split.each do |file|
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origin = "#{fake_root_directory}#{file}"
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destination ="#{package.fake_root_directory}#{file}"
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Dir.mkdir_p File.dirname destination
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FileUtils.mv(
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"#{fake_root_directory}#{file}",
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"#{package.fake_root_directory}#{file}"
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)
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puts file
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@context.run "find", [
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"#{package.fake_root_directory}/#{file}"
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]
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end
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end
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end
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def auto_splits : Array(Package)
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@context.splitter_backends.compact_map do |backend|
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backend.create_split self
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end
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end
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# TODO:
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# - Errors management. Stop at first failure?
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# - Splits. This should be done between #build and #package.
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def package
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# This tries to build them all and stops at the first failure
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# (failures are currently reported by Context#package)
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(@packages + auto_splits).each do |package|
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if package.automatic && ! File.exists? package.fake_root_directory
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next
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end
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unless @context.package package
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raise PackagingError.new self, package
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end
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end
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end
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def clean
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FileUtils.rm_rf building_directory
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FileUtils.rm_rf fake_root_directory
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end
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def watch
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if script = @watch_script
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status, output = @context.captured_sh script
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output = output.to_s
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.gsub(/^[ \t\n]*/, "").gsub(/[ \t\n]*$/, "")
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if output != @version
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STDERR.puts "WARNING: '#{@name}' is old! (#{output} / #{@version})"
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else
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puts "'#{@name}' is up to date"
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end
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return
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end
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STDERR.puts "WARNING: '#{@name}' has no watch."
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end
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def to_s
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"#{name}-#{version}"
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end
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def to_spec_s
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spec = [
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"name: #{name}",
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"version: #{version}",
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"release: #{release}"
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].join("\n") + "\n"
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if @sources.size == 1
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spec += "sources: #{sources[0].to_s.gsub @version, "%{version}"}\n"
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end
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if maintainer
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spec += "maintainer: #{maintainer}\n"
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end
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if packager
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spec += "packager: #{packager}\n"
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end
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if @options.size > 0
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spec += "options:\n"
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@options.each do |key, value|
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value = value.gsub fake_root_directory, "%{pkg}"
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spec += "\t- #{key}: #{value}\n"
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end
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spec += "\n" # Limitation of the current implementation.
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end
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if @dependencies.size > 0
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spec += "dependencies:\n"
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@dependencies.each do |dep|
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spec += "\t- #{dep}\n"
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end
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spec += "\n"
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end
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if @dirname
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spec += "dirname: #{@dirname}\n"
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end
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[
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{"configure", @instructions.configure},
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{"build", @instructions.build},
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{"install", @instructions.install}
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].each do |name, instructions|
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if instructions.size > 0
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spec += "@#{name}\n"
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instructions.each do |line|
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line = line.gsub /^\t* *\n/, ""
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line = line.gsub /\n *\t*\n/, "\n"
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line = line.gsub /\n *\t*$/, ""
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line = line.gsub fake_root_directory, "%{pkg}"
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line = line.gsub name, "%{name}"
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line = line.gsub version, "%{version}"
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line = line.gsub dirname, "%{dirname}"
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line = line.gsub(/^[\t ]*/, "").gsub(/\n\t*/, "\n\t")
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spec += "\t#{line}\n"
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end
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spec += "\n" # Limitation of the current implementation.
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end
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end
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spec
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end
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end
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