Module: Herb::Bootstrap

Defined in:
lib/herb/bootstrap.rb

Constant Summary collapse

ROOT_PATH = 
File.expand_path("../..", __dir__)
PRISM_VENDOR_DIR = 
File.join(ROOT_PATH, "vendor", "prism")
PRISM_ENTRIES = 
[
  "config.yml",
  "Rakefile",
  "src/",
  "include/",
  "templates/"
].freeze

Class Method Summary collapse

Class Method Details

.find_prism_as_bundler_sibling ⇒ Object 



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# File 'lib/herb/bootstrap.rb', line 69

def self.find_prism_as_bundler_sibling
  bundler_gems_dir = File.expand_path("..", ROOT_PATH)
  candidates = Dir.glob(File.join(bundler_gems_dir, "prism-*"))

  candidates.find { |path| File.directory?(File.join(path, "src")) }
end

.find_prism_from_gem_spec ⇒ Object 



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# File 'lib/herb/bootstrap.rb', line 76

def self.find_prism_from_gem_spec
  path = Gem::Specification.find_by_name("prism").full_gem_path

  return path if File.directory?(File.join(path, "src"))

  nil
rescue Gem::MissingSpecError
  nil
end

.find_prism_gem_path ⇒ Object 



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# File 'lib/herb/bootstrap.rb', line 60

def self.find_prism_gem_path
  find_prism_as_bundler_sibling || find_prism_from_gem_spec
end

.generate_prism_templates ⇒ Object 



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# File 'lib/herb/bootstrap.rb', line 64

def self.generate_prism_templates
  puts "Generating Prism template files..."
  system("ruby", "#{PRISM_VENDOR_DIR}/templates/template.rb", exception: true)
end

.generate_templates ⇒ Object 



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# File 'lib/herb/bootstrap.rb', line 19

def self.generate_templates
  require "pathname"
  require_relative "../../templates/template"

  Dir.chdir(ROOT_PATH) do
    Dir.glob("#{ROOT_PATH}/templates/**/*.erb").each do |template|
      Herb::Template.render(template)
    end
  end
end

.git_source? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/herb/bootstrap.rb', line 30

def self.git_source?
  File.directory?(File.join(ROOT_PATH, ".git"))
end

.prism_ast_header_exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/herb/bootstrap.rb', line 56

def self.prism_ast_header_exists?
  File.exist?(File.join(PRISM_VENDOR_DIR, "include", "prism", "ast.h"))
end

.prism_vendored? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/herb/bootstrap.rb', line 52

def self.prism_vendored?
  File.directory?(File.join(PRISM_VENDOR_DIR, "include"))
end

.templates_generated? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/herb/bootstrap.rb', line 34

def self.templates_generated?
  File.exist?(File.join(ROOT_PATH, "ext", "herb", "nodes.c"))
end

.vendor_prism(prism_gem_path:) ⇒ Object 



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# File 'lib/herb/bootstrap.rb', line 38

def self.vendor_prism(prism_gem_path:)
  FileUtils.mkdir_p(PRISM_VENDOR_DIR)

  PRISM_ENTRIES.each do |entry|
    source = File.join(prism_gem_path, entry)
    next unless File.exist?(source)

    puts "Vendoring '#{entry}' Prism file to #{PRISM_VENDOR_DIR}/#{entry}"
    FileUtils.cp_r(source, PRISM_VENDOR_DIR)
  end

  generate_prism_templates unless prism_ast_header_exists?
end