module FakeFS::FileSystem
FileSystem module
Public Instance Methods
add(path, object = FakeDir.new)
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# File lib/fakefs/file_system.rb, line 39 def add(path, object = FakeDir.new) parts = path_parts(normalize_path(path)) d = parts[0...-1].reduce(fs) do |dir, part| assert_dir dir[part] if dir[part] dir[part] ||= FakeDir.new(part, dir) end assert_dir d object.name = parts.last object.parent = d d[parts.last] ||= object end
chdir(dir) { |dir| ... }
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# File lib/fakefs/file_system.rb, line 86 def chdir(dir, &blk) new_dir = find(dir) dir_levels.push dir if blk fail Errno::ENOENT, dir unless new_dir dir_levels.push dir unless blk yield(dir) if blk ensure dir_levels.pop if blk end
clear()
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# File lib/fakefs/file_system.rb, line 14 def clear @dir_levels = nil @fs = nil end
clone(path, target = nil)
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copies directories and files from the real filesystem into our fake one
# File lib/fakefs/file_system.rb, line 55 def clone(path, target = nil) path = RealFile.expand_path(path) pattern = File.join(path, '**', '*') files = if RealFile.file?(path) [path] else [path] + RealDir.glob(pattern, RealFile::FNM_DOTMATCH) end files.each do |f| target_path = target ? f.gsub(path, target) : f if RealFile.symlink?(f) FileUtils.ln_s(RealFile.readlink(f), f) elsif RealFile.file?(f) FileUtils.mkdir_p(File.dirname(f)) File.open(target_path, File::WRITE_ONLY) do |g| g.print RealFile.read(f) end elsif RealFile.directory?(f) FileUtils.mkdir_p(target_path) end end end
current_dir()
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# File lib/fakefs/file_system.rb, line 113 def current_dir find('.') end
delete(path)
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# File lib/fakefs/file_system.rb, line 80 def delete(path) return unless (node = FileSystem.find(path)) node.delete true end
dir_levels()
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# File lib/fakefs/file_system.rb, line 6 def dir_levels @dir_levels ||= ['/'] end
files()
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# File lib/fakefs/file_system.rb, line 19 def files fs.entries end
find(path)
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# File lib/fakefs/file_system.rb, line 23 def find(path) parts = path_parts(normalize_path(path)) return fs if parts.empty? # '/' entries = Globber.expand(path).flat_map do |pattern| parts = path_parts(normalize_path(pattern)) find_recurser(fs, parts).flatten end case entries.length when 0 then nil when 1 then entries.first else entries end end
fs()
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# File lib/fakefs/file_system.rb, line 10 def fs @fs ||= FakeDir.new('/') end
normalize_path(path)
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# File lib/fakefs/file_system.rb, line 102 def normalize_path(path) if Pathname.new(path).absolute? RealFile.expand_path(path) else parts = dir_levels + [path] RealFile.expand_path(parts.reduce do |base, part| Pathname(base) + part end.to_s) end end
path_parts(path)
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# File lib/fakefs/file_system.rb, line 98 def path_parts(path) Globber.path_components(path) end
Private Instance Methods
assert_dir(dir)
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# File lib/fakefs/file_system.rb, line 159 def assert_dir(dir) fail Errno::EEXIST, dir.name unless dir.is_a?(FakeDir) end
directories_under(dir)
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# File lib/fakefs/file_system.rb, line 153 def directories_under(dir) children = dir.entries.select { |f| f.is_a? FakeDir } ([dir] + children + children.map { |c| directories_under(c) }) .flatten.uniq end
find_recurser(dir, parts)
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# File lib/fakefs/file_system.rb, line 119 def find_recurser(dir, parts) return [] unless dir.respond_to? :[] pattern, *parts = parts matches = case pattern when '**' case parts when ['*'] parts = [] # end recursion directories_under(dir).map do |d| d.entries.select do |f| (f.is_a?(FakeFile) || f.is_a?(FakeDir)) && f.name.match(/\A(?!\.)/) end end.flatten.uniq when [] parts = [] # end recursion dir.entries.flatten.uniq else directories_under(dir) end else Globber.expand(pattern).flat_map do |subpattern| dir.matches(Globber.regexp(subpattern)) end end if parts.empty? # we're done recursing matches else matches.map { |entry| find_recurser(entry, parts) } end end