[PATCH] D101878: [git-clang-format] Do not apply clang-format to symlinks

[Pirama Arumuga Nainar via Phabricator via cfe-commits]

pirama updated this revision to Diff 342927.
pirama added a comment.

Leave two empty lines after filter_symlinks.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D101878/new/

https://reviews.llvm.org/D101878

Files:
  clang/tools/clang-format/git-clang-format


Index: clang/tools/clang-format/git-clang-format
===================================================================
--- clang/tools/clang-format/git-clang-format
+++ clang/tools/clang-format/git-clang-format
@@ -137,10 +137,15 @@
   if opts.verbose >= 1:
     ignored_files = set(changed_lines)
   filter_by_extension(changed_lines, opts.extensions.lower().split(','))
+  # The computed diff outputs absolute paths, so we must cd before accessing
+  # those files.
+  cd_to_toplevel()
+  filter_symlinks(changed_lines)
   if opts.verbose >= 1:
     ignored_files.difference_update(changed_lines)
     if ignored_files:
-      print('Ignoring changes in the following files (wrong extension):')
+      print(
+        'Ignoring changes in the following files (wrong extension or symlink):')
       for filename in ignored_files:
         print('    %s' % filename)
     if changed_lines:
@@ -151,9 +156,6 @@
     if opts.verbose >= 0:
       print('no modified files to format')
     return
-  # The computed diff outputs absolute paths, so we must cd before accessing
-  # those files.
-  cd_to_toplevel()
   if len(commits) > 1:
     old_tree = commits[1]
     new_tree = run_clang_format_and_save_to_tree(changed_lines,
@@ -337,6 +339,14 @@
       del dictionary[filename]
 
 
+def filter_symlinks(dictionary):
+  """Delete every key in `dictionary` that is a symlink."""
+  for filename in list(dictionary.keys()):
+    print(os.getcwd())
+    if os.path.islink(filename):
+      del dictionary[filename]
+
+
 def cd_to_toplevel():
   """Change to the top level of the git repository."""
   toplevel = run('git', 'rev-parse', '--show-toplevel')


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