which() - Code Metrics - Inspection of "Add rmtree function from shutil module." - datakortet/dkfileutils - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 5f68ae...c3dae1 )

by Bjorn

created 2016-04-28 18:54 UTC

which() F

↳ Parent: Project

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	19
c	1
b	0
f	0
dl	0
loc	52
rs	3.073

How to fix Long Method Complexity

# -*- coding: utf-8 -*-
"""Print where on the path an executable is located.
"""
from __future__ import print_function
import sys
import os
from stat import ST_MODE, S_IXUSR, S_IXGRP, S_IXOTH


def get_executable(name):
    """Return the first executable on the path that matches `name`.
    """
    for result in which(name):
        return result
    return None


def get_path_directories():
    """Return a list of all the directories on the path.
    """
    pth = os.environ['PATH']
    if sys.platform == 'win32' and os.environ.get("BASH"):
        # winbash has a bug..
        if pth[1] == ';':  # pragma: nocover
            pth = pth.replace(';', ':', 1)
    return pth.split(os.pathsep)


def is_executable(fname):
    """Check if a file is executable.
    """
    return os.stat(fname)[ST_MODE] & (S_IXUSR | S_IXGRP | S_IXOTH)


def which(filename, interactive=False, verbose=False):
    """Yield all executable files on path that matches `filename`.
    """
    exe = os.environ.get('PATHEXT', ['.cmd', '.bat', '.exe', '.com'])

    name, ext = os.path.splitext(filename)
    if ext and (ext in exe):  # pragma: nocover
        exe = []

    def match(filenames):
        res = set()
        for fname in filenames:
            if fname == filename:  # pragma: nocover
                res.add(fname)
                continue

            fn_name, fn_ext = os.path.splitext(fname)
            if name == fn_name:
                for suffix in exe:
                    if name + fn_ext == fname:
                        res.add(fname)

        return sorted(res)

    returnset = set()
    found = False
    for pth in get_path_directories():
        if not pth.strip():  # pragma: nocover
            continue

        if verbose:  # pragma: nocover
            print('checking pth..')

        try:
            fnames = os.listdir(pth)
        except:  # pragma: nocover
            continue

        matched = match(fnames)

        if matched:
            for m in matched:
                found_file = os.path.normcase(os.path.normpath(os.path.join(pth, m)))
                if found_file not in returnset:
                    if is_executable(found_file):
                        yield found_file
                    returnset.add(found_file)
            found = True

    if not found and interactive:  # pragma: nocover
        print("Couldn't find %r anywhere on the path.." % filename)
        sys.exit(1)


if __name__ == "__main__":  # pragma: nocover
    for _fname in which(sys.argv[1], interactive=True, verbose='-v' in sys.argv):
        print(_fname)
    sys.exit(0)


1			# -- coding: utf-8 --
2			"""Print where on the path an executable is located.
3			"""
4			from __future__ import print_function
5			import sys
6			import os
7			from stat import ST_MODE, S_IXUSR, S_IXGRP, S_IXOTH
8
9
10			def get_executable(name):
11			"""Return the first executable on the path that matches `name`.
12			"""
13			for result in which(name):
14			return result
15			return None
16
17
18			def get_path_directories():
19			"""Return a list of all the directories on the path.
20			"""
21			pth = os.environ['PATH']
22			if sys.platform == 'win32' and os.environ.get("BASH"):
23			# winbash has a bug..
24			if pth[1] == ';': # pragma: nocover
25			pth = pth.replace(';', ':', 1)
26			return pth.split(os.pathsep)
27
28
29			def is_executable(fname):
30			"""Check if a file is executable.
31			"""
32			return os.stat(fname)[ST_MODE] & (S_IXUSR \| S_IXGRP \| S_IXOTH)
33
34
35			def which(filename, interactive=False, verbose=False):
36			"""Yield all executable files on path that matches `filename`.
37			"""
38			exe = os.environ.get('PATHEXT', ['.cmd', '.bat', '.exe', '.com'])
39
40			name, ext = os.path.splitext(filename)
41			if ext and (ext in exe): # pragma: nocover
42			exe = []
43
44			def match(filenames):
45			res = set()
46			for fname in filenames:
47			if fname == filename: # pragma: nocover
48			res.add(fname)
49			continue
50
51			fn_name, fn_ext = os.path.splitext(fname)
52			if name == fn_name:
53			for suffix in exe:
54			if name + fn_ext == fname:
55			res.add(fname)
56
57			return sorted(res)
58
59			returnset = set()
60			found = False
61			for pth in get_path_directories():
62			if not pth.strip(): # pragma: nocover
63			continue
64
65			if verbose: # pragma: nocover
66			print('checking pth..')
67
68			try:
69			fnames = os.listdir(pth)
70			except: # pragma: nocover
71			continue
72
73			matched = match(fnames)
74
75			if matched:
76			for m in matched:
77			found_file = os.path.normcase(os.path.normpath(os.path.join(pth, m)))
78			if found_file not in returnset:
79			if is_executable(found_file):
80			yield found_file
81			returnset.add(found_file)
82			found = True
83
84			if not found and interactive: # pragma: nocover
85			print("Couldn't find %r anywhere on the path.." % filename)
86			sys.exit(1)
87
88
89			if __name__ == "__main__": # pragma: nocover
90			for _fname in which(sys.argv[1], interactive=True, verbose='-v' in sys.argv):
91			print(_fname)
92			sys.exit(0)
93

datakortet / dkfileutils

Push — master ( 5f68ae...c3dae1 )

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