Package: python-unidiff / 0.5.2-1

0002-Support-the-No-newline-at-end-of-file-marker.patch Patch series | download
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Description: Support the No newline at end of file marker
Author: SnakE <snake.scaly@gmail.com>
Applied-Upstream: commit:52fd21d3330d5fdd9664c3912264e9301880d9c7
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- a/tests/samples/sample3.diff
+++ b/tests/samples/sample3.diff
@@ -19,8 +19,9 @@
 +
 +This is a new line.
  
- This will stay.
+-This will stay.
 \ No newline at end of file
++This will stay.
 
 === removed file 'removed_file'
 --- removed_file	2013-10-13 23:53:13 +0000
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -68,6 +68,20 @@
         added_unicode_line = res.added_files[0][0][1]
         self.assertEqual(added_unicode_line.value, 'holá mundo!\n')
 
+    def test_no_newline_at_end_of_file(self):
+        utf8_file = os.path.join(self.samples_dir, 'samples/sample3.diff')
+        with open(utf8_file, 'rb') as diff_file:
+            res = PatchSet(diff_file, encoding='utf-8')
+
+        # 3 files updated by diff
+        self.assertEqual(len(res), 3)
+        added_unicode_line = res.added_files[0][0][4]
+        self.assertEqual(added_unicode_line.line_type, '\\')
+        self.assertEqual(added_unicode_line.value, ' No newline at end of file\n')
+        added_unicode_line = res.modified_files[0][0][8]
+        self.assertEqual(added_unicode_line.line_type, '\\')
+        self.assertEqual(added_unicode_line.value, ' No newline at end of file\n')
+
     def test_preserve_dos_line_endings(self):
         utf8_file = os.path.join(self.samples_dir, 'samples/sample4.diff')
         with open(utf8_file, 'rb') as diff_file:
--- a/unidiff/constants.py
+++ b/unidiff/constants.py
@@ -42,12 +42,16 @@
 # \n empty line (treat like context)
 # +  added line
 # -  deleted line
-# \  No newline case (ignore)
+# \  No newline case
 RE_HUNK_BODY_LINE = re.compile(r'^(?P<line_type>[- \n\+\\])(?P<value>.*)', re.DOTALL)
 
+RE_NO_NEWLINE_MARKER = re.compile(r'^\\ No newline at end of file')
+
 DEFAULT_ENCODING = 'UTF-8'
 
 LINE_TYPE_ADDED = '+'
 LINE_TYPE_REMOVED = '-'
 LINE_TYPE_CONTEXT = ' '
 LINE_TYPE_EMPTY = '\n'
+LINE_TYPE_NO_NEWLINE = '\\'
+LINE_VALUE_NO_NEWLINE = ' No newline at end of file'
--- a/unidiff/patch.py
+++ b/unidiff/patch.py
@@ -35,10 +35,13 @@
     LINE_TYPE_CONTEXT,
     LINE_TYPE_EMPTY,
     LINE_TYPE_REMOVED,
+    LINE_TYPE_NO_NEWLINE,
+    LINE_VALUE_NO_NEWLINE,
     RE_HUNK_BODY_LINE,
     RE_HUNK_HEADER,
     RE_SOURCE_FILENAME,
     RE_TARGET_FILENAME,
+    RE_NO_NEWLINE_MARKER,
 )
 from unidiff.errors import UnidiffParseError
 
@@ -208,6 +211,8 @@
                 target_line_no += 1
                 original_line.source_line_no = source_line_no
                 source_line_no += 1
+            elif line_type == LINE_TYPE_NO_NEWLINE:
+                pass
             else:
                 original_line = None
 
@@ -222,6 +227,12 @@
 
         self.append(hunk)
 
+    def _add_no_newline_marker_to_last_hunk(self):
+        if not self:
+            raise UnidiffParseError('Unexpected marker:' + LINE_VALUE_NO_NEWLINE)
+        last_hunk = self[-1]
+        last_hunk.append(Line(LINE_VALUE_NO_NEWLINE + '\n', line_type=LINE_TYPE_NO_NEWLINE))
+
     @property
     def path(self):
         """Return the file path abstracted from VCS."""
@@ -319,6 +330,13 @@
                     raise UnidiffParseError('Unexpected hunk found: %s' % line)
                 current_file._parse_hunk(line, diff, encoding)
 
+            # check for no newline marker
+            is_no_newline = RE_NO_NEWLINE_MARKER.match(line)
+            if is_no_newline:
+                if current_file is None:
+                    raise UnidiffParseError('Unexpected marker: %s' % line)
+                current_file._add_no_newline_marker_to_last_hunk()
+
     @classmethod
     def from_filename(cls, filename, encoding=DEFAULT_ENCODING, errors=None):
         """Return a PatchSet instance given a diff filename."""