def get_spec_name_in_srpm(srpm):
"""Return the name of the spec file present in an SRPM. Assumes
there is exactly one spec file in the SRPM -- if there is more than
one spec file, returns the name of the first one ``cpio'' prints.
"""
out, ret = utils.sbacktick("rpm2cpio %s | cpio -t '*.spec' 2> /dev/null" %
utils.shell_quote(srpm),
shell=True)
if ret != 0:
raise Error("Unable to get list of spec files from %s" % srpm)
try:
spec_name = [_f for _f in [x.strip() for x in out.split("\n")]
if _f][0]
except IndexError:
spec_name = None
if not spec_name:
raise Error("No spec file inside %s" % srpm)
return spec_name
def extract_from_rpm(rpm, file_or_pattern=None):
"""Extract a specific file or glob from an rpm."""
command = "rpm2cpio " + utils.shell_quote(rpm) + " | cpio -ivd"
if file_or_pattern:
command += " " + utils.shell_quote(file_or_pattern)
return utils.checked_call(command, shell=True)