author Gregory Szorc <>
Thu, 27 Jul 2017 14:12:35 -0700
changeset 420202 6504499c1689d9199c355e07164b849f9144ca2f
parent 231096 d3025e55dfc3ac40fdedd1344799bd55ff8d2806
child 473816 fba6f974041a3d3c22ef95c44f6e4262e8e5c52f
permissions -rw-r--r--
Bug 1384396 - Detect Watchman Mercurial integration in configure; r=nalexander Configure now detects VCS info. Configure now detects Watchman. We can combine the two so configure can detect if Mercurial is configured with Watchman enabled. This commit does two things: 1) collects the Mercurial config so it is available to downstream checks 2) examines the config for presence and state of the fsmonitor extension We don't yet do anything with the fsmonitor state. But it should be useful soon. Also, the return value is kinda wonky. This will almost certainly be improved as soon as there is an actual consumer. MozReview-Commit-ID: HyHZ2X8VI0h

# Any copyright is dedicated to the Public Domain.

# 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 sys
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):

        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_file_path_list = list(rel_file_path_set)
    rel_dir_path_list = list(rel_dir_path_set)

    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")


if __name__ == "__main__":