Quelle variables.py Sprache: Python

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os
import subprocess
import sys
from datetime import datetime

SOURCESTAMP_FILENAME = "sourcestamp.txt"

def get_buildid():
    import buildconfig

    path = os.path.join(buildconfig.topobjdir, "buildid.h")
    _define, _MOZ_BUILDID, buildid = open(path, "r", encoding="utf-8").read().split()
    return buildid

def buildid_header(output):
    buildid = os.environ.get("MOZ_BUILD_DATE")
    if buildid and len(buildid) != 14:
        print("Ignoring invalid MOZ_BUILD_DATE: %s" % buildid, file=sys.stderr)
        buildid = None
    if not buildid:
        buildid = datetime.now().strftime("%Y%m%d%H%M%S")
    # If this output changes, be sure to update `get_buildid()`.
    output.write("#define MOZ_BUILDID %s\n" % buildid)

def get_program_output(*command):
    try:
        with open(os.devnull) as stderr:
            return subprocess.check_output(
                command, stderr=stderr, universal_newlines=True
            )
    except Exception:
        return ""

def get_hg_info(workdir):
    repo = get_program_output("hg", "-R", workdir, "path", "default")
    if repo:
        repo = repo.strip()
        if repo.startswith("ssh://"):
            repo = "https://" + repo[6:]
        repo = repo.rstrip("/")

    changeset = get_hg_changeset(workdir)

    return repo, changeset

def get_hg_changeset(path):
    return get_program_output("hg", "-R", path, "parent", "--template={node}")

def get_info_from_sourcestamp(sourcestamp_path):
    """Read the repository and changelog information from the sourcestamp
    file. This assumes that the file exists and returns the results as a list
    (either strings or None in case of error).
    """

    # Load the content of the file.
    lines = None
    with open(sourcestamp_path) as f:
        lines = f.read().splitlines()

    # Parse the repo and the changeset. The sourcestamp file is supposed to
    # contain two lines: the first is the build id and the second is the source
    # URL.
    if len(lines) != 2 or not lines[1].startswith("http"):
        # Just return if the file doesn't contain what we expect.
        return None, None

    # Return the repo and the changeset.
    return lines[1].split("/rev/")

def source_repo_header(output):
    # We allow the source repo and changeset to be specified via the
    # environment (see configure)
    import buildconfig

    repo = buildconfig.substs.get("MOZ_SOURCE_REPO")
    changeset = buildconfig.substs.get("MOZ_SOURCE_CHANGESET")
    source = ""

    if not repo:
        sourcestamp_path = os.path.join(buildconfig.topsrcdir, SOURCESTAMP_FILENAME)
        if os.path.exists(os.path.join(buildconfig.topsrcdir, ".hg")):
            repo, changeset = get_hg_info(buildconfig.topsrcdir)
        elif os.path.exists(sourcestamp_path):
            repo, changeset = get_info_from_sourcestamp(sourcestamp_path)
    elif not changeset:
        changeset = get_hg_changeset(buildconfig.topsrcdir)
        if not changeset:
            raise Exception(
                "could not resolve changeset; " "try setting MOZ_SOURCE_CHANGESET"
            )

    if changeset:
        output.write("#define MOZ_SOURCE_STAMP %s\n" % changeset)

    if repo and buildconfig.substs.get("MOZ_INCLUDE_SOURCE_INFO"):
        source = "%s/rev/%s" % (repo, changeset)
        output.write("#define MOZ_SOURCE_REPO %s\n" % repo)
        output.write("#define MOZ_SOURCE_URL %s\n" % source)

def main(args):
    if len(args):
        func = globals().get(args[0])
        if func:
            return func(sys.stdout, *args[1:])

if __name__ == "__main__":
    sys.exit(main(sys.argv[1:]))

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