Python versioneer 模块，versionfile_source() 实例源码

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-subst keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-time keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-time keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def do_vcs_install(manifest_in, versionfile_source, ipy):
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-time keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-subst keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-subst keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-subst keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def do_vcs_install(manifest_in, versionfile_source, ipy):
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-subst keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-subst keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)

def scan_setup_py():
    """Validate the contents of setup.py against Versioneer's expectations."""
    found = set()
    setters = False
    errors = 0
    with open("setup.py", "r") as f:
        for line in f.readlines():
            if "import versioneer" in line:
                found.add("import")
            if "versioneer.get_cmdclass()" in line:
                found.add("cmdclass")
            if "versioneer.get_version()" in line:
                found.add("get_version")
            if "versioneer.VCS" in line:
                setters = True
            if "versioneer.versionfile_source" in line:
                setters = True
    if len(found) != 3:
        print("")
        print("Your setup.py appears to be missing some important items")
        print("(but I might be wrong). Please make sure it has something")
        print("roughly like the following:")
        print("")
        print(" import versioneer")
        print(" setup( version=versioneer.get_version(),")
        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
        print("")
        errors += 1
    if setters:
        print("You should remove lines like 'versioneer.VCS = ' and")
        print("'versioneer.versionfile_source = ' . This configuration")
        print("now lives in setup.cfg, and should be removed from setup.py")
        print("")
        errors += 1
    return errors

def get_config_from_root(root):
    """Read the project setup.cfg file to determine Versioneer config."""
    # This might raise EnvironmentError (if setup.cfg is missing), or
    # configparser.NoSectionError (if it lacks a [versioneer] section), or
    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
    # the top of versioneer.py for instructions on writing your setup.cfg .
    setup_cfg = os.path.join(root, "setup.cfg")
    parser = configparser.SafeConfigParser()
    with open(setup_cfg, "r") as f:
        parser.readfp(f)
    VCS = parser.get("versioneer", "VCS")  # mandatory

    def get(parser, name):
        if parser.has_option("versioneer", name):
            return parser.get("versioneer", name)
        return None
    cfg = VersioneerConfig()
    cfg.VCS = VCS
    cfg.style = get(parser, "style") or ""
    cfg.versionfile_source = get(parser, "versionfile_source")
    cfg.versionfile_build = get(parser, "versionfile_build")
    cfg.tag_prefix = get(parser, "tag_prefix")
    if cfg.tag_prefix in ("''", '""'):
        cfg.tag_prefix = ""
    cfg.parentdir_prefix = get(parser, "parentdir_prefix")
    cfg.verbose = get(parser, "verbose")
    return cfg

def do_vcs_install(manifest_in, versionfile_source, ipy):
    """Git-specific installation logic for Versioneer.

    For Git, this means creating/changing .gitattributes to mark _version.py
    for export-subst keyword substitution.
    """
    GITS = ["git"]
    if sys.platform == "win32":
        GITS = ["git.cmd", "git.exe"]
    files = [manifest_in, versionfile_source]
    if ipy:
        files.append(ipy)
    try:
        me = __file__
        if me.endswith(".pyc") or me.endswith(".pyo"):
            me = os.path.splitext(me)[0] + ".py"
        versioneer_file = os.path.relpath(me)
    except NameError:
        versioneer_file = "versioneer.py"
    files.append(versioneer_file)
    present = False
    try:
        f = open(".gitattributes", "r")
        for line in f.readlines():
            if line.strip().startswith(versionfile_source):
                if "export-subst" in line.strip().split()[1:]:
                    present = True
        f.close()
    except EnvironmentError:
        pass
    if not present:
        f = open(".gitattributes", "a+")
        f.write("%s export-subst\n" % versionfile_source)
        f.close()
        files.append(".gitattributes")
    run_command(GITS, ["add", "--"] + files)