def find_msys_version_subdir(msys_dir):
"""Return the full MSYS root directory path
If msys_dir path lacks the version subdirectory, e.g. 1.0, then the
path is searched for one. The user will be prompted to choose if more
than one version is found.
"""
regex = r'[\\/][1-9][.][0-9]$'
if re.search(regex, msys_dir) is not None:
return msys_dir
roots = glob.glob(os.path.join(msys_dir, '[1-9].[0-9]'))
roots.sort()
roots.reverse()
if not roots:
raise MsysException("No msys versions found.\n")
else:
if len(roots) == 1:
root = roots[0]
else:
msys_print("Select an Msys version:")
for i, path in enumerate(roots):
msys_print(" %d = %s" % (i+1, os.path.split(path)[1]))
choice = msys_raw_input("Select 1-%d (1 = default):")
if not choice:
root = roots[0]
else:
root = roots[int(choice)-1]
return root
def input_msys_dir():
"""Return user entered MSYS directory path
May raise MsysException."""
while 1:
dir_path = msys_raw_input("Enter the MSYS directory path,\n"
"(or press [Enter] to quit):")
dir_path = dir_path.strip()
if not dir_path:
raise MsysException("Input aborted by user")
dir_path = os.path.abspath(dir_path)
try:
return find_msys_version_subdir(dir_path)
except MsysException:
msys_print(helpers.geterror ())
def find_msys_shell(msys_directory=None):
"""Retrun the MSYS shell program path
MsysException is raised if the shell program is not found. The user
is prompt is prompted as a last resort if no directory is found or
there are multiple choices.
"""
shell = check_for_shell(msys_directory)
while 1:
shell = os.path.abspath(shell.replace('/', os.sep))
if os.path.isfile(shell):
break
msys_print("Directory %s has no MSYS shell." % shell)
shell = as_shell(input_msys_dir())
return shell
