Module: Git::Rails::Changes

Defined in:
lib/git/rails/changes.rb,
lib/git/rails/changes/version.rb

Defined Under Namespace

Classes: Error

Constant Summary collapse

VERSION = 
"0.1.3"

Class Method Summary collapse

Class Method Details

.main ⇒ Object 



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# File 'lib/git/rails/changes.rb', line 12

def main
  opts = Optimist.options do
    opt "all-files", "Don't exclude any files"
    opt "include-deleted", "Don't filter out deleted files"
    opt "code-only", "Filter out .yml, .json, and .md files"
    opt "spec-only", "Convert all paths to spec and remove non-spec files"
    opt "cached", "Only compare staged files (useful for pre-commit hooks)"
    opt "unstaged-only", "Only compare unstaged/uncommitted files"
    opt "branch",
      "Compare all changes with given branch (default main)",
      type: :string,
      default: "main"
    opt "replace-blank",
      "Prevent blank output by sending alternate output",
      type: :string,
      default: "--version"
    opt "rspec-pre-commit", "Preset option for getting cached specs safely"
    opt "run-rspec", "Run rspec on the files found by the given options"
    opt "run-rspec-fail-fast", "Run rspec with the --fail-fast option"
    opt "run-rubocop", "Run rubocop on the files found by the given options"
    opt "run-rubocop-autocorrect", "Run rubocop with the --safe-auto-correct flag"
    opt "debug", "Print all command line options"
  end

  if opts["rspec-pre-commit"]
    opts["cached"] = true
    opts["spec-only"] = true
    opts["replace-blank"] = "--version"
  end

  puts opts if opts["debug"]

  raise "Can't use both 'cached' (-c) and 'unstaged-only' (-u) flags" if opts["cached"] && opts["unstaged-only"]

  # gather all changes
  file_list = if opts["unstaged-only"]
    `git ls-files --modified --others #{"--exclude-standard" unless opts["all-files"]}`
  elsif opts["cached"]
    `git diff --name-status --cached #{"| grep -v '\''^D'\''" unless opts["include-deleted"]} | awk '{print $2}'`
  else
    `git diff --name-status #{opts["branch"]} #{"| grep -v '\''^D'\''" unless opts["include-deleted"]} | awk '{print $2}'`
  end
  file_list = file_list.split("\n")

  if opts["spec-only"]
    spec_array = file_list.map { |file| spec?(file) ? file : spec_from_code(file) }
    spec_array = spec_array.select { |file| file.match?(/_spec.rb$/) }
    spec_array = spec_array.map { |spec| File.exist?(File.expand_path(spec, `pwd`.strip)) ? spec : nil }
    file_list = spec_array.compact.uniq
  end

  file_list = file_list.reject { |file| /\.(yml|json|md|enc)\Z/.match(file) } if opts["code-only"]

  command = []
  if opts["run-rspec"] || opts["run-rspec-fail-fast"]
    command << `which spring`.strip
    command << "rspec"
    command << "--fail-fast" if opts["run-rspec-fail-fast"]
  elsif opts["run-rubocop"] || opts["run-rubocop-autocorrect"]
    command << `which rubocop`.strip
    command << "--safe-auto-correct" if opts["run-rubocop-autocorrect"]
  else
    command << `which echo`.strip
    file_list = [file_list.join("\n")]
  end

  if file_list.empty? && opts["replace-blank"]
    command << opts["replace-blank"]
  else
    command.concat(file_list)
  end

  command.compact!

  exec(*command)
end