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require 'sprockets/digest_utils'
require 'sprockets/path_utils'
module Sprockets
# Internal: Crossover of path and digest utilities functions.
module PathDigestUtils
include DigestUtils, PathUtils
# Internal: Compute digest for file stat.
#
# path - String filename
# stat - File::Stat
#
# Returns String digest bytes.
def stat_digest(path, stat)
if stat.directory?
# If its a directive, digest the list of filenames
digest_class.digest(self.entries(path).join(','))
elsif stat.file?
# If its a file, digest the contents
digest_class.file(path.to_s).digest
else
raise TypeError, "stat was not a directory or file: #{stat.ftype}"
end
end
# Internal: Compute digest for path.
#
# path - String filename or directory path.
#
# Returns String digest bytes or nil.
def file_digest(path)
if stat = self.stat(path)
self.stat_digest(path, stat)
end
end
# Internal: Compute digest for a set of paths.
#
# paths - Array of filename or directory paths.
#
# Returns String digest bytes.
def files_digest(paths)
self.digest(paths.map { |path| self.file_digest(path) })
end
end
end
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