Function XcodeVersion

tools/gyp/pylib/gyp/xcode_emulation.py:1482–1518

Returns a tuple of version and build version of installed Xcode.

()

def XcodeVersion():
    """Returns a tuple of version and build version of installed Xcode."""
    # `xcodebuild -version` output looks like
    #    Xcode 4.6.3
    #    Build version 4H1503
    # or like
    #    Xcode 3.2.6
    #    Component versions: DevToolsCore-1809.0; DevToolsSupport-1806.0
    #    BuildVersion: 10M2518
    # Convert that to ('0463', '4H1503') or ('0326', '10M2518').
    global XCODE_VERSION_CACHE
    if XCODE_VERSION_CACHE:
        return XCODE_VERSION_CACHE
    version = ""
    build = ""
    try:
        version_list = GetStdoutQuiet(["xcodebuild", "-version"]).splitlines()
        # In some circumstances xcodebuild exits 0 but doesn't return
        # the right results; for example, a user on 10.7 or 10.8 with
        # a bogus path set via xcode-select
        # In that case this may be a CLT-only install so fall back to
        # checking that version.
        if len(version_list) < 2:
            raise GypError("xcodebuild returned unexpected results")
        version = version_list[0].split()[-1]  # Last word on first line
        build = version_list[-1].split()[-1]  # Last word on last line
    except (GypError, OSError):
        # Xcode not installed so look for XCode Command Line Tools
        version = CLTVersion()  # macOS Catalina returns 11.0.0.0.1.1567737322
        if not version:
            raise GypError("No Xcode or CLT version detected!")
    # Be careful to convert "4.2.3" to "0423" and "11.0.0" to "1100":
    version = version.split(".")[:3]  # Just major, minor, micro
    version[0] = version[0].zfill(2)  # Add a leading zero if major is one digit
    version = ("".join(version) + "00")[:4]  # Limit to exactly four characters
    XCODE_VERSION_CACHE = (version, build)
    return XCODE_VERSION_CACHE


# This function ported from the logic in Homebrew's CLT version check