# Simulates a pre-commit context based on the diff with another git ref.

#

# This results in pre-commit hooks running against the changes between the current

# and another ref, which is useful for automated CI scripts.

class Diff < Base

def modified_files

@modified_files ||= Overcommit::GitRepo.modified_files(refs: @options[:diff])

end

def modified_lines_in_file(file)

@modified_lines ||= {}

@modified_lines[file] ||= Overcommit::GitRepo.extract_modified_lines(file,

refs: @options[:diff])

end

def hook_class_name

'PreCommit'

end

def hook_type_name

'pre_commit'

end

def hook_script_name

'pre-commit'

end

def initial_commit?

@initial_commit ||= Overcommit::GitRepo.initial_commit?

end

end