config/createprecomplete.py
author Andrew Osmond <aosmond@mozilla.com>
Tue, 16 Oct 2018 08:45:26 -0400
changeset 447457 ccfa531dea0301244c99db4ff26d5610382487e2
parent 419630 da3c81f986fa63b42a2874b1791eddcdbfbe8424
child 475918 12061a0decdbc92d7a478d34955bc8abaf22eb15
permissions -rw-r--r--
Bug 1504699 - Part 7. Update animated image recycling queue to work well with WebRender. r=tnikkel WebRender takes longer than OMTP to release its hold on the current frame. This is because it is in a separate process and holds onto the surface in between rendering frames, rather than getting a reference for each repaint. This patch makes us less aggressive about taking the most recent surface placed in the recycling queue out to avoid blocking on waiting for the surface to be released. Differential Revision: https://phabricator.services.mozilla.com/D10903

# Any copyright is dedicated to the Public Domain.
# http://creativecommons.org/publicdomain/zero/1.0/

# Creates the precomplete file containing the remove and rmdir application
# update instructions which is used to remove files and directories that are no
# longer present in a complete update. The current working directory is used for
# the location to enumerate and to create the precomplete file.

import os


def get_build_entries(root_path):
    """ Iterates through the root_path, creating a list for each file and
        directory. Excludes any file paths ending with channel-prefs.js.
    """
    rel_file_path_set = set()
    rel_dir_path_set = set()
    for root, dirs, files in os.walk(root_path):
        for file_name in files:
            parent_dir_rel_path = root[len(root_path)+1:]
            rel_path_file = os.path.join(parent_dir_rel_path, file_name)
            rel_path_file = rel_path_file.replace("\\", "/")
            if not (rel_path_file.endswith("channel-prefs.js") or
                    rel_path_file.endswith("update-settings.ini") or
                    rel_path_file.find("distribution/") != -1):
                rel_file_path_set.add(rel_path_file)

        for dir_name in dirs:
            parent_dir_rel_path = root[len(root_path)+1:]
            rel_path_dir = os.path.join(parent_dir_rel_path, dir_name)
            rel_path_dir = rel_path_dir.replace("\\", "/")+"/"
            if rel_path_dir.find("distribution/") == -1:
                rel_dir_path_set.add(rel_path_dir)

    rel_file_path_list = list(rel_file_path_set)
    rel_file_path_list.sort(reverse=True)
    rel_dir_path_list = list(rel_dir_path_set)
    rel_dir_path_list.sort(reverse=True)

    return rel_file_path_list, rel_dir_path_list


def generate_precomplete(root_path):
    """ Creates the precomplete file containing the remove and rmdir
        application update instructions. The given directory is used
        for the location to enumerate and to create the precomplete file.
    """
    rel_path_precomplete = "precomplete"
    # If inside a Mac bundle use the root of the bundle for the path.
    if os.path.basename(root_path) == "Resources":
        root_path = os.path.abspath(os.path.join(root_path, '../../'))
        rel_path_precomplete = "Contents/Resources/precomplete"

    precomplete_file_path = os.path.join(root_path, rel_path_precomplete)
    # Open the file so it exists before building the list of files and open it
    # in binary mode to prevent OS specific line endings.
    precomplete_file = open(precomplete_file_path, "wb")
    rel_file_path_list, rel_dir_path_list = get_build_entries(root_path)
    for rel_file_path in rel_file_path_list:
        precomplete_file.writelines("remove \""+rel_file_path+"\"\n")

    for rel_dir_path in rel_dir_path_list:
        precomplete_file.writelines("rmdir \""+rel_dir_path+"\"\n")

    precomplete_file.close()


if __name__ == "__main__":
    generate_precomplete(os.getcwd())