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require 'rubygems'
require 'rake'
require 'set'
require 'fileutils'
require 'ceedling/file_path_utils'
class FileSystemUtils
constructor :file_wrapper
# build up path list from input of one or more strings or arrays of (+/-) paths & globs
def collect_paths(*paths)
raw = [] # all paths and globs
plus = Set.new # all paths to expand and add
minus = Set.new # all paths to remove from plus set
# assemble all globs and simple paths, reforming our glob notation to ruby globs
paths.each do |paths_container|
case (paths_container)
when String then raw << (FilePathUtils::reform_glob(paths_container))
when Array then paths_container.each {|path| raw << (FilePathUtils::reform_glob(path))}
else raise "Don't know how to handle #{paths_container.class}"
end
end
# iterate through each path and glob
raw.each do |path|
dirs = [] # container for only (expanded) paths
# if a glob, expand it and slurp up all non-file paths
if path.include?('*')
# grab base directory only if globs are snug up to final path separator
if (path =~ /\/\*+$/)
dirs << FilePathUtils.extract_path(path)
end
# grab expanded sub-directory globs
expanded = @file_wrapper.directory_listing( FilePathUtils.extract_path_no_aggregation_operators(path) )
expanded.each do |entry|
dirs << entry if @file_wrapper.directory?(entry)
end
# else just grab simple path
# note: we could just run this through glob expansion but such an
# approach doesn't handle a path not yet on disk)
else
dirs << FilePathUtils.extract_path_no_aggregation_operators(path)
end
# add dirs to the appropriate set based on path aggregation modifier if present
FilePathUtils.add_path?(path) ? plus.merge(dirs) : minus.merge(dirs)
end
return (plus - minus).to_a.uniq
end
# given a file list, add to it or remove from it
def revise_file_list(list, revisions)
revisions.each do |revision|
# include or exclude file or glob to file list
file = FilePathUtils.extract_path_no_aggregation_operators( revision )
FilePathUtils.add_path?(revision) ? list.include(file) : list.exclude(file)
end
end
end
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