From e1773beb351bdbeb6104ae0db4b58a65ce6c7299 Mon Sep 17 00:00:00 2001
From: Timothy Crosley <timothy.crosley@gmail.com>
Date: Thu, 7 Mar 2019 22:08:39 -0800
Subject: Fix file skipping in particular with globs

---
 isort/isort.py    | 20 ++++++++++++++------
 isort/main.py     | 10 +++++-----
 isort/settings.py |  2 +-
 test_isort.py     | 14 ++++++++++++++
 4 files changed, 34 insertions(+), 12 deletions(-)

diff --git a/isort/isort.py b/isort/isort.py
index 73363e83..67cade39 100644
--- a/isort/isort.py
+++ b/isort/isort.py
@@ -69,6 +69,7 @@ class SortImports(object):
         show_diff: bool = False,
         settings_path: Optional[str] = None,
         ask_to_apply: bool = False,
+         run_path: str='',
         check_skip: bool = True,
         **setting_overrides: Any
     ) -> None:
@@ -90,12 +91,19 @@ class SortImports(object):
         self.file_path = file_path or ""
         if file_path:
             file_path = os.path.abspath(file_path)
-            if check_skip and settings.file_should_be_skipped(file_path, self.config):
-                self.skipped = True
-                if self.config['verbose']:
-                    print("WARNING: {0} was skipped as it's listed in 'skip' setting"
-                          " or matches a glob in 'skip_glob' setting".format(file_path))
-                file_contents = None
+            if check_skip:
+                if run_path and file_path.startswith(run_path):
+                    file_name = os.path.relpath(file_path, run_path)
+                else:
+                    file_name = file_path
+                    run_path = ''
+
+                if settings.file_should_be_skipped(file_name, self.config, run_path):
+                    self.skipped = True
+                    if self.config['verbose']:
+                        print("WARNING: {0} was skipped as it's listed in 'skip' setting"
+                            " or matches a glob in 'skip_glob' setting".format(file_path))
+                    file_contents = None
             elif not file_contents:
                 file_encoding = coding_check(file_path)
                 with open(file_path, encoding=file_encoding, newline='') as file_to_import_sort:
diff --git a/isort/main.py b/isort/main.py
index 8842a318..3e7cbc6a 100644
--- a/isort/main.py
+++ b/isort/main.py
@@ -84,7 +84,7 @@ class SortAttempt(object):
 
 def sort_imports(file_name: str, **arguments: Any) -> Optional[SortAttempt]:
     try:
-        result = SortImports(file_name, check_skip=False, **arguments)
+        result = SortImports(file_name, **arguments)
         return SortAttempt(result.incorrectly_sorted, result.skipped)
     except IOError as e:
         print("WARNING: Unable to parse file {0} due to {1}".format(file_name, e))
@@ -98,9 +98,7 @@ def iter_source_code(paths: Iterable[str], config: MutableMapping[str, Any], ski
 
     for path in paths:
         if os.path.isdir(path):
-            for dirpath, dirnames, filenames in os.walk(
-                    path, topdown=True, followlinks=True
-            ):
+            for dirpath, dirnames, filenames in os.walk(path, topdown=True, followlinks=True):
                 for dirname in list(dirnames):
                     if file_should_be_skipped(dirname, config, dirpath):
                         skipped.append(dirname)
@@ -108,7 +106,8 @@ def iter_source_code(paths: Iterable[str], config: MutableMapping[str, Any], ski
                 for filename in filenames:
                     filepath = os.path.join(dirpath, filename)
                     if is_python_file(filepath):
-                        if file_should_be_skipped(filename, config, dirpath):
+                        relative_file = os.path.relpath(filepath, path)
+                        if file_should_be_skipped(relative_file, config, path):
                             skipped.append(filename)
                         else:
                             yield filepath
@@ -311,6 +310,7 @@ def main(argv: Optional[Sequence[str]] = None) -> None:
               '-rc for recursive')
         sys.exit(1)
 
+    arguments['check_skip'] = False
     if 'settings_path' in arguments:
         sp = arguments['settings_path']
         arguments['settings_path'] = os.path.abspath(sp) if os.path.isdir(sp) else os.path.dirname(os.path.abspath(sp))
diff --git a/isort/settings.py b/isort/settings.py
index b11d2e6b..43a0f2a4 100644
--- a/isort/settings.py
+++ b/isort/settings.py
@@ -383,7 +383,7 @@ def file_should_be_skipped(
     if normalized_path[1:2] == ':':
         normalized_path = normalized_path[2:]
 
-    if config['safety_excludes']:
+    if path and config['safety_excludes']:
         check_exclude = '/' + filename.replace('\\', '/') + '/'
         if path and os.path.basename(path) in ('lib', ):
             check_exclude = '/' + os.path.basename(path) + check_exclude
diff --git a/test_isort.py b/test_isort.py
index 00e7e82e..570a7c50 100644
--- a/test_isort.py
+++ b/test_isort.py
@@ -2769,6 +2769,20 @@ def test_safety_excludes(tmpdir, enabled):
     assert file_names == {'verysafe.py'}
 
 
+@pytest.mark.parametrize('skip_glob_assert', (([], 0, {os.sep.join(('code', 'file.py'))}), (['**/*.py'], 1, {})))
+def test_skip_glob(tmpdir, skip_glob_assert):
+    skip_glob, skipped_count, file_names = skip_glob_assert
+    base_dir = tmpdir.mkdir('build')
+    code_dir = base_dir.mkdir('code')
+    code_dir.join('file.py').write('import os')
+
+    config = dict(settings.default.copy(), skip_glob=skip_glob)
+    skipped = []
+    file_names = set(os.path.relpath(f, str(base_dir)) for f in main.iter_source_code([str(base_dir)], config, skipped))
+    assert len(skipped) == skipped_count
+    assert file_names == file_names
+
+
 def test_comments_not_removed_issue_576():
     test_input = ('import distutils\n'
                   '# this comment is important and should not be removed\n'
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