config/createprecomplete.py

   1 # Any copyright is dedicated to the Public Domain.
   2 # http://creativecommons.org/publicdomain/zero/1.0/
   3
   4 # Creates the precomplete file containing the remove and rmdir application
   5 # update instructions which is used to remove files and directories that are no
   6 # longer present in a complete update. The current working directory is used for
   7 # the location to enumerate and to create the precomplete file.
   8
   9 from __future__ import absolute_import, unicode_literals
  10
  11 import io
  12 import os
  13
  14
  15 def get_build_entries(root_path):
  16     """Iterates through the root_path, creating a list for each file and
  17     directory. Excludes any file paths ending with channel-prefs.js.
  18     """
  19     rel_file_path_set = set()
  20     rel_dir_path_set = set()
  21     for root, dirs, files in os.walk(root_path):
  22         for file_name in files:
  23             parent_dir_rel_path = root[len(root_path) + 1 :]
  24             rel_path_file = os.path.join(parent_dir_rel_path, file_name)
  25             rel_path_file = rel_path_file.replace("\\", "/")
  26             if not (
  27                 rel_path_file.endswith("channel-prefs.js")
  28                 or rel_path_file.endswith("update-settings.ini")
  29                 or rel_path_file.find("distribution/") != -1
  30             ):
  31                 rel_file_path_set.add(rel_path_file)
  32
  33         for dir_name in dirs:
  34             parent_dir_rel_path = root[len(root_path) + 1 :]
  35             rel_path_dir = os.path.join(parent_dir_rel_path, dir_name)
  36             rel_path_dir = rel_path_dir.replace("\\", "/") + "/"
  37             if rel_path_dir.find("distribution/") == -1:
  38                 rel_dir_path_set.add(rel_path_dir)
  39
  40     rel_file_path_list = list(rel_file_path_set)
  41     rel_file_path_list.sort(reverse=True)
  42     rel_dir_path_list = list(rel_dir_path_set)
  43     rel_dir_path_list.sort(reverse=True)
  44
  45     return rel_file_path_list, rel_dir_path_list
  46
  47
  48 def generate_precomplete(root_path):
  49     """Creates the precomplete file containing the remove and rmdir
  50     application update instructions. The given directory is used
  51     for the location to enumerate and to create the precomplete file.
  52     """
  53     rel_path_precomplete = "precomplete"
  54     # If inside a Mac bundle use the root of the bundle for the path.
  55     if os.path.basename(root_path) == "Resources":
  56         root_path = os.path.abspath(os.path.join(root_path, "../../"))
  57         rel_path_precomplete = "Contents/Resources/precomplete"
  58
  59     precomplete_file_path = os.path.join(root_path, rel_path_precomplete)
  60     # Open the file so it exists before building the list of files and open it
  61     # in binary mode to prevent OS specific line endings.
  62     precomplete_file = io.open(precomplete_file_path, mode="wt", newline="\n")
  63     rel_file_path_list, rel_dir_path_list = get_build_entries(root_path)
  64     for rel_file_path in rel_file_path_list:
  65         precomplete_file.write('remove "' + rel_file_path + '"\n')
  66
  67     for rel_dir_path in rel_dir_path_list:
  68         precomplete_file.write('rmdir "' + rel_dir_path + '"\n')
  69
  70     precomplete_file.close()
  71
  72
  73 if __name__ == "__main__":
  74     generate_precomplete(os.getcwd())