Module: GitStatistics::Utilities

Defined in:
lib/git_statistics/utilities.rb

Defined Under Namespace

Classes: NotInRepository

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.find_blob_in_tree(tree, file) ⇒ Object 



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# File 'lib/git_statistics/utilities.rb', line 51

def self.find_blob_in_tree(tree, file)
  # Check If cannot find tree in commit or if we found a submodule as the changed file
  if tree.nil? || file.nil?
    return nil
  elsif tree.instance_of?(Grit::Submodule)
    return tree
  end

  # If the blob is within the current directory (tree)
  if file.one?
    blob = tree / file.first

    # Check if blob is nil (could not find changed file in tree)
    if blob.nil?

      # Try looking for submodules as they cannot be found using tree / file notation
      tree.contents.each do |content|
        if file.first == content.name
          return tree
        end
      end

      # Exit through recusion with the base case of a nil tree/blob
      return find_blob_in_tree(blob, file)
    end
    return blob
  else
    # Explore deeper in the tree to find the blob of the changed file
    return find_blob_in_tree(tree / file.first, file[1..-1])
  end
end

.get_modified_time(file) ⇒ Object 



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# File 'lib/git_statistics/utilities.rb', line 83

def self.get_modified_time(file)
  if os == :windows
    raise "`stat` is not supported on the Windows operating system"
  end
  flags = os == :mac ? "-f %m" : "-c %Y"
  time_at("stat #{flags} #{file}")
end

.get_repository(path = Dir.pwd) ⇒ Object 



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# File 'lib/git_statistics/utilities.rb', line 8

def self.get_repository(path = Dir.pwd)
  ascender = Pathname.new(path).to_enum(:ascend)
  repo_path = ascender.detect { |path| (path + '.git').exist? }
  raise NotInRepository unless repo_path
  Grit::Repo.new(repo_path.to_s)
rescue NotInRepository
  Log.error "You must be within a Git project to run git-statistics."
  exit 0
end

.max_length_in_list(list, max = nil) ⇒ Object 



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# File 'lib/git_statistics/utilities.rb', line 18

def self.max_length_in_list(list, max = nil)
  return nil if list.nil?
  list.each do |key,value|
    max = key.length if max.nil? || key.length > max
  end
  max
end

.number_of_matching_files(directory, pattern) ⇒ Object 



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# File 'lib/git_statistics/utilities.rb', line 110

def self.number_of_matching_files(directory, pattern)
  Dir.entries(directory).grep(pattern).size
rescue SystemCallError
  warn "No such directory #{File.expand_path(directory)}"
  0
end

.split_old_new_file(old, new) ⇒ Object 



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# File 'lib/git_statistics/utilities.rb', line 26

def self.split_old_new_file(old, new)
  # Split the old and new chunks up (separted by the =>)
  split_old = old.split('{')
  split_new = new.split('}')

  # Handle recombine the file splits into their whole paths)
  if split_old.one? && split_new.one?
    old_file = split_old[0]
    new_file = split_new[0]
  elsif split_new.one?
    old_file = split_old[0] + split_old[1]
    new_file = split_old[0] + split_new[0]
  elsif split_old.one?
    old_file = split_old[0] + split_new[1]
    new_file = split_old[0] + split_new[0] + split_new[1]
  else
    old_file = split_old[0] + split_old[1] + split_new[1]
    new_file = split_old[0] + split_new[0] + split_new[1]
  end

  # Return files, yet remove the '//' if present from combining splits
  return {:old_file => old_file.gsub('//', '/'),
          :new_file => new_file.gsub('//', '/')}
end

.time_at(cmd) ⇒ Object 



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# File 'lib/git_statistics/utilities.rb', line 106

def self.time_at(cmd)
  Time.at(%x{#{cmd}}.to_i)
end

Instance Method Details

#os ⇒ Object 



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# File 'lib/git_statistics/utilities.rb', line 91

def os
  case RbConfig::CONFIG['host_os']
  when /mswin|msys|mingw|cygwin|bccwin|wince|emc/
    :windows
  when /darwin|mac os/
    :mac
  when /linux/
    :linux
  when /solaris|bsd/
    :unix
  else
    :unknown
  end
end