Fix symbol identification in multiline message

* Fix an issue where a multiline message with leading spaces would cause
  invalid symbol identification.
* Add unit-tests around multiple symbols in a single line

Sem-Ver: bugfix
Change-Id: Id799c2fd368d9df38a5c01fc2071283aecef67c6

pbr/packaging.py

@@ -692,12 +692,14 @@ def _get_increment_kwargs(git_dir, tag):
     # git log output affecting out ability to have working sem ver headers.
     changelog = git._run_git_command(['log', '--pretty=%B', version_spec],
                                      git_dir)
-    header_len = len('sem-ver:')
-    commands = [line[header_len:].strip() for line in changelog.split('\n')
-                if line.lower().strip().startswith('sem-ver:')]
     symbols = set()
-    for command in commands:
-        symbols.update([symbol.strip() for symbol in command.split(',')])
+    header = 'sem-ver:'
+    for line in changelog.split("\n"):
+        line = line.lower().strip()
+        if not line.lower().strip().startswith(header):
+            continue
+        new_symbols = line[len(header):].strip().split(",")
+        symbols.update([symbol.strip() for symbol in new_symbols])
 
     def _handle_symbol(symbol, symbols, impact):
         if symbol in symbols:

pbr/tests/test_packaging.py

@@ -672,6 +672,27 @@ class TestVersions(base.BaseTestCase):
         version = packaging._get_version_from_git()
         self.assertThat(version, matchers.StartsWith('2.0.0.dev1'))
 
+    def test_multi_inline_symbols_no_space(self):
+        self.repo.commit()
+        self.repo.tag('1.2.3')
+        self.repo.commit('Sem-ver: feature,api-break')
+        version = packaging._get_version_from_git()
+        self.assertThat(version, matchers.StartsWith('2.0.0.dev1'))
+
+    def test_multi_inline_symbols_spaced(self):
+        self.repo.commit()
+        self.repo.tag('1.2.3')
+        self.repo.commit('Sem-ver: feature, api-break')
+        version = packaging._get_version_from_git()
+        self.assertThat(version, matchers.StartsWith('2.0.0.dev1'))
+
+    def test_multi_inline_symbols_reversed(self):
+        self.repo.commit()
+        self.repo.tag('1.2.3')
+        self.repo.commit('Sem-ver: api-break,feature')
+        version = packaging._get_version_from_git()
+        self.assertThat(version, matchers.StartsWith('2.0.0.dev1'))
+
     def test_leading_space(self):
         self.repo.commit()
         self.repo.tag('1.2.3')
@@ -679,6 +700,18 @@ class TestVersions(base.BaseTestCase):
         version = packaging._get_version_from_git()
         self.assertThat(version, matchers.StartsWith('2.0.0.dev1'))
 
+    def test_leading_space_multiline(self):
+        self.repo.commit()
+        self.repo.tag('1.2.3')
+        self.repo.commit(
+            (
+                '   Some cool text\n'
+                '   sem-ver: api-break'
+            )
+        )
+        version = packaging._get_version_from_git()
+        self.assertThat(version, matchers.StartsWith('2.0.0.dev1'))
+
     def test_leading_characters_symbol_not_found(self):
         self.repo.commit()
         self.repo.tag('1.2.3')

releasenotes/notes/fix-symbols-leading-spaces-f68928d75a8f0997.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fix an issue where symbols that were indented
+    would produce an incorrect version.