--- /dev/null
+# Copyright (C) 2018 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html
+
+# Python 2/3 Compatibility (ICU-20299)
+# TODO(ICU-20301): Remove this.
+from __future__ import print_function
+
+import sys
+
+from . import *
+
+
+def dir_for(file):
+ if isinstance(file, LocalFile):
+ return file.dirname
+ if isinstance(file, SrcFile):
+ return "{SRC_DIR}"
+ if isinstance(file, InFile):
+ return "{IN_DIR}"
+ if isinstance(file, TmpFile):
+ return "{TMP_DIR}"
+ if isinstance(file, OutFile):
+ return "{OUT_DIR}"
+ if isinstance(file, PkgFile):
+ return "{PKG_DIR}"
+ assert False
+
+
+def concat_dicts(*dicts):
+ # There is not a super great way to do this in Python:
+ new_dict = {}
+ for dict in dicts:
+ new_dict.update(dict)
+ return new_dict
+
+
+def repeated_execution_request_looper(request):
+ # dictionary of lists to list of dictionaries:
+ ld = [
+ dict(zip(request.repeat_with, t))
+ for t in zip(*request.repeat_with.values())
+ ]
+ if not ld:
+ # No special options given in repeat_with
+ ld = [{} for _ in range(len(request.input_files))]
+ return zip(ld, request.specific_dep_files, request.input_files, request.output_files)
+
+
+def format_single_request_command(request, cmd_template, common_vars):
+ return cmd_template.format(
+ ARGS = request.args.format(
+ INPUT_FILES = [file.filename for file in request.input_files],
+ OUTPUT_FILES = [file.filename for file in request.output_files],
+ **concat_dicts(common_vars, request.format_with)
+ )
+ )
+
+
+def format_repeated_request_command(request, cmd_template, loop_vars, common_vars):
+ (iter_vars, _, input_file, output_file) = loop_vars
+ return cmd_template.format(
+ ARGS = request.args.format(
+ INPUT_FILE = input_file.filename,
+ OUTPUT_FILE = output_file.filename,
+ **concat_dicts(common_vars, request.format_with, iter_vars)
+ )
+ )
+
+
+def flatten_requests(requests, config, common_vars):
+ result = []
+ for request in requests:
+ result += request.flatten(config, requests, common_vars)
+ return result
+
+
+def get_all_output_files(requests, include_tmp=False):
+ files = []
+ for request in requests:
+ files += request.all_output_files()
+
+ # Filter out all files but those in OUT_DIR if necessary.
+ # It is also easy to filter for uniqueness; do it right now and return.
+ if not include_tmp:
+ files = (file for file in files if isinstance(file, OutFile))
+ return list(set(files))
+
+ # Filter for unique values. NOTE: Cannot use set() because we need to accept same filename as
+ # OutFile and TmpFile as different, and by default they evaluate as equal.
+ return [f for _, f in set((type(f), f) for f in files)]
+
+
+def compute_directories(requests):
+ dirs = set()
+ for file in get_all_output_files(requests, include_tmp=True):
+ path = "%s/%s" % (dir_for(file), file.filename)
+ dirs.add(path[:path.rfind("/")])
+ return list(sorted(dirs))
+
+
+class SpaceSeparatedList(list):
+ """A list that joins itself with spaces when converted to a string."""
+ def __str__(self):
+ return " ".join(self)