Class: RuboCop::TargetFinder

Inherits:
Object
  • Object
show all
Defined in:
lib/rubocop/target_finder.rb

Overview

This class finds target files to inspect by scanning the directory tree and picking ruby files.

Instance Method Summary collapse

Constructor Details

#initialize(config_store, options = {}) ⇒ TargetFinder 


9
10
11
12
 
# File 'lib/rubocop/target_finder.rb', line 9

def initialize(config_store, options = {})
  @config_store = config_store
  @options = options
end

Instance Method Details

#all_cops_include ⇒ Object 


136
137
138
 
# File 'lib/rubocop/target_finder.rb', line 136

def all_cops_include
  @config_store.for('.').for_all_cops['Include'].map(&:to_s)
end

#configured_include?(file) ⇒ Boolean 


164
165
166
 
# File 'lib/rubocop/target_finder.rb', line 164

def configured_include?(file)
  @config_store.for('.').file_to_include?(file)
end

#debug? ⇒ Boolean 


18
19
20
 
# File 'lib/rubocop/target_finder.rb', line 18

def debug?
  @options[:debug]
end

#excluded_dirs(base_dir) ⇒ Object 


106
107
108
109
110
111
112
 
# File 'lib/rubocop/target_finder.rb', line 106

def excluded_dirs(base_dir)
  all_cops_config = @config_store.for(base_dir).for_all_cops
  dir_tree_excludes = all_cops_config['Exclude'].select do |pattern|
    pattern.is_a?(String) && pattern.end_with?('/**/*')
  end
  dir_tree_excludes.map { |pattern| pattern.sub(%r{/\*\*/\*$}, '') }
end

#fail_fast? ⇒ Boolean 


22
23
24
 
# File 'lib/rubocop/target_finder.rb', line 22

def fail_fast?
  @options[:fail_fast]
end

#find(args) ⇒ Array

Generate a list of target files by expanding globbing patterns (if any). If args is empty, recursively find all Ruby source files under the current directory


30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/rubocop/target_finder.rb', line 30

def find(args)
  return target_files_in_dir if args.empty?

  files = []

  args.uniq.each do |arg|
    files += if File.directory?(arg)
               target_files_in_dir(arg.chomp(File::SEPARATOR))
             else
               process_explicit_path(arg)
             end
  end

  files.map { |f| File.expand_path(f) }.uniq
end

#find_files(base_dir, flags) ⇒ Object

Search for files recursively starting at the given base directory using the given flags that determine how the match is made. Excluded files will be removed later by the caller, but as an optimization find_files removes the top level directories that are excluded in configuration in the normal way (dir/*/).


83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
 
# File 'lib/rubocop/target_finder.rb', line 83

def find_files(base_dir, flags)
  wanted_toplevel_dirs = toplevel_dirs(base_dir, flags) -
                         excluded_dirs(base_dir)
  wanted_toplevel_dirs.map! { |dir| dir << '/**/*' }

  pattern = if wanted_toplevel_dirs.empty?              # We need this special case to avoid creating the pattern
              # /**/* which searches the entire file system.

              ["#{base_dir}/**/*"]
            else
              # Search the non-excluded top directories, but also add files
              # on the top level, which would otherwise not be found.
              wanted_toplevel_dirs.unshift("#{base_dir}/*")
            end
  Dir.glob(pattern, flags).select { |path| FileTest.file?(path) }
end

#force_exclusion? ⇒ Boolean 


14
15
16
 
# File 'lib/rubocop/target_finder.rb', line 14

def force_exclusion?
  @options[:force_exclusion]
end

#included_file?(file) ⇒ Boolean 


168
169
170
 
# File 'lib/rubocop/target_finder.rb', line 168

def included_file?(file)
  ruby_file?(file) || configured_include?(file)
end

#process_explicit_path(path) ⇒ Object 


172
173
174
175
176
177
178
179
180
181
182
183
 
# File 'lib/rubocop/target_finder.rb', line 172

def process_explicit_path(path)
  files = path.include?('*') ? Dir[path] : [path]

  files.select! { |file| included_file?(file) }

  return files unless force_exclusion?

  files.reject do |file|
    config = @config_store.for(file)
    config.file_to_exclude?(file)
  end
end

#ruby_executable?(file) ⇒ Boolean 


140
141
142
143
144
145
146
147
148
149
 
# File 'lib/rubocop/target_finder.rb', line 140

def ruby_executable?(file)
  return false unless File.extname(file).empty? && File.exist?(file)

  first_line = File.open(file, &:readline)
  !(first_line =~ /#!.*(#{ruby_interpreters(file).join('|')})/).nil?
rescue EOFError, ArgumentError => e
  warn("Unprocessable file #{file}: #{e.class}, #{e.message}") if debug?

  false
end

#ruby_extension?(file) ⇒ Boolean 


114
115
116
 
# File 'lib/rubocop/target_finder.rb', line 114

def ruby_extension?(file)
  ruby_extensions.include?(File.extname(file))
end

#ruby_extensions ⇒ Object 


118
119
120
121
122
123
 
# File 'lib/rubocop/target_finder.rb', line 118

def ruby_extensions
  ext_patterns = all_cops_include.select do |pattern|
    pattern.start_with?('**/*.')
  end
  ext_patterns.map { |pattern| pattern.sub('**/*', '') }
end

#ruby_file?(file) ⇒ Boolean 


159
160
161
162
 
# File 'lib/rubocop/target_finder.rb', line 159

def ruby_file?(file)
  stdin? || ruby_extension?(file) || ruby_filename?(file) ||
    ruby_executable?(file)
end

#ruby_filename?(file) ⇒ Boolean 


125
126
127
 
# File 'lib/rubocop/target_finder.rb', line 125

def ruby_filename?(file)
  ruby_filenames.include?(File.basename(file))
end

#ruby_filenames ⇒ Object 


129
130
131
132
133
134
 
# File 'lib/rubocop/target_finder.rb', line 129

def ruby_filenames
  file_patterns = all_cops_include.reject do |pattern|
    pattern.start_with?('**/*.')
  end
  file_patterns.map { |pattern| pattern.sub('**/', '') }
end

#ruby_interpreters(file) ⇒ Object 


151
152
153
 
# File 'lib/rubocop/target_finder.rb', line 151

def ruby_interpreters(file)
  @config_store.for(file).for_all_cops['RubyInterpreters']
end

#stdin? ⇒ Boolean 


155
156
157
 
# File 'lib/rubocop/target_finder.rb', line 155

def stdin?
  @options.key?(:stdin)
end

#target_files_in_dir(base_dir = Dir.pwd) ⇒ Array

Finds all Ruby source files under the current or other supplied directory. A Ruby source file is defined as a file with the `.rb` extension or a file with no extension that has a ruby shebang line as its first line. It is possible to specify includes and excludes using the config file, so you can include other Ruby files like Rakefiles and gemspecs.


55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
 
# File 'lib/rubocop/target_finder.rb', line 55

def target_files_in_dir(base_dir = Dir.pwd)
  # Support Windows: Backslashes from command-line -> forward slashes
  if File::ALT_SEPARATOR
    base_dir = base_dir.gsub(File::ALT_SEPARATOR, File::SEPARATOR)
  end
  all_files = find_files(base_dir, File::FNM_DOTMATCH)
  hidden_files = Set.new(all_files - find_files(base_dir, 0))
  base_dir_config = @config_store.for(base_dir)

  target_files = all_files.select do |file|
    to_inspect?(file, hidden_files, base_dir_config)
  end

  target_files.sort_by!(&order)
end

#to_inspect?(file, hidden_files, base_dir_config) ⇒ Boolean 


71
72
73
74
75
76
 
# File 'lib/rubocop/target_finder.rb', line 71

def to_inspect?(file, hidden_files, base_dir_config)
  return false if base_dir_config.file_to_exclude?(file)
  return true if !hidden_files.include?(file) && ruby_file?(file)

  base_dir_config.file_to_include?(file)
end

#toplevel_dirs(base_dir, flags) ⇒ Object 


100
101
102
103
104
 
# File 'lib/rubocop/target_finder.rb', line 100

def toplevel_dirs(base_dir, flags)
  Dir.glob(File.join(base_dir, '*'), flags).select do |dir|
    File.directory?(dir) && !dir.end_with?('/.', '/..')
  end
end