From 35a22053c42797f82c293a59502af815230d2c69 Mon Sep 17 00:00:00 2001
From: Timothy Crosley <timothy.crosley@gmail.com>
Date: Tue, 27 Oct 2020 23:43:49 -0700
Subject: [PATCH 1/3] Fix issue #1582: Provide a flag for not following links

---
 isort/main.py     | 12 ++++++++----
 isort/settings.py |  1 +
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/isort/main.py b/isort/main.py
index c8715e10d..7f776e0cd 100644
--- a/isort/main.py
+++ b/isort/main.py
@@ -147,7 +147,7 @@ def iter_source_code(
 
     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=config.follow_links):
                 base_path = Path(dirpath)
                 for dirname in list(dirnames):
                     full_path = base_path / dirname
@@ -741,7 +741,6 @@ def _build_arg_parser() -> argparse.ArgumentParser:
         help="Tells isort to only show an identical custom import heading comment once, even if"
         " there are multiple sections with the comment set.",
     )
-
     parser.add_argument(
         "--only-sections",
         "--os",
@@ -750,7 +749,6 @@ def _build_arg_parser() -> argparse.ArgumentParser:
         help="Causes imports to be sorted only based on their sections like STDLIB,THIRDPARTY etc. "
         "Imports are unaltered and keep their relative positions within the different sections.",
     )
-
     parser.add_argument(
         "--only-modified",
         "--om",
@@ -758,7 +756,6 @@ def _build_arg_parser() -> argparse.ArgumentParser:
         action="store_true",
         help="Suppresses verbose output for non-modified files.",
     )
-
     parser.add_argument(
         "--combine-straight-imports",
         "--csi",
@@ -767,6 +764,11 @@ def _build_arg_parser() -> argparse.ArgumentParser:
         help="Combines all the bare straight imports of the same section in a single line. "
         "Won't work with sections which have 'as' imports",
     )
+    parser.add_argument(
+        "--dont-follow-links",
+        dest="dont_follow_links",
+        action="store_true"
+    )
 
     # deprecated options
     parser.add_argument(
@@ -823,6 +825,8 @@ def parse_args(argv: Optional[Sequence[str]] = None) -> Dict[str, Any]:
     if "dont_order_by_type" in arguments:
         arguments["order_by_type"] = False
         del arguments["dont_order_by_type"]
+    if "dont_follow_links" in arguments:
+        arguments["follow_links"] = False
     multi_line_output = arguments.get("multi_line_output", None)
     if multi_line_output:
         if multi_line_output.isdigit():
diff --git a/isort/settings.py b/isort/settings.py
index 8b93e4236..f0bd14b2d 100644
--- a/isort/settings.py
+++ b/isort/settings.py
@@ -203,6 +203,7 @@ class _Config:
     combine_straight_imports: bool = False
     auto_identify_namespace_packages: bool = True
     namespace_packages: FrozenSet[str] = frozenset()
+    follow_links: bool = True
 
     def __post_init__(self):
         py_version = self.py_version

From 669a6c36309ce89581074ab1e3aaa5bf7785aba7 Mon Sep 17 00:00:00 2001
From: Timothy Crosley <timothy.crosley@gmail.com>
Date: Tue, 27 Oct 2020 23:44:51 -0700
Subject: [PATCH 2/3] Add help

---
 isort/main.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/isort/main.py b/isort/main.py
index 7f776e0cd..b1274ef33 100644
--- a/isort/main.py
+++ b/isort/main.py
@@ -767,7 +767,8 @@ def _build_arg_parser() -> argparse.ArgumentParser:
     parser.add_argument(
         "--dont-follow-links",
         dest="dont_follow_links",
-        action="store_true"
+        action="store_true",
+        help="Tells isort not to follow symlinks that are encountered when running recursively.",
     )
 
     # deprecated options

From 21b509797ba72631a506d333e86d8effe4584791 Mon Sep 17 00:00:00 2001
From: Timothy Crosley <timothy.crosley@gmail.com>
Date: Tue, 27 Oct 2020 23:49:30 -0700
Subject: [PATCH 3/3] black

---
 isort/main.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/isort/main.py b/isort/main.py
index b1274ef33..0aeed6994 100644
--- a/isort/main.py
+++ b/isort/main.py
@@ -147,7 +147,9 @@ def iter_source_code(
 
     for path in paths:
         if os.path.isdir(path):
-            for dirpath, dirnames, filenames in os.walk(path, topdown=True, followlinks=config.follow_links):
+            for dirpath, dirnames, filenames in os.walk(
+                path, topdown=True, followlinks=config.follow_links
+            ):
                 base_path = Path(dirpath)
                 for dirname in list(dirnames):
                     full_path = base_path / dirname