jesseh · May 13, 2011 16:25 · May 13, 2011
diff --git a/gistfile1.py b/gistfile1.py
@@ -0,0 +1,46 @@
+def _get_notes(prev_tag, next_tag):
+    with hide('stdout'):
+        commits = run("git log --graph --pretty=format:'%h - %s (%cr by %an)%d' "
+                      + "--abbrev-commit --date=relative"+ " %s..%s" 
+                      % (prev_tag, next_tag)).splitlines()
+        commits.pop()        # prev_tag went out with the previous release notes.
+        commits.reverse()    # order going down with time
+        commits = "\n".join(commits)
+        commits = re.sub(r"\\",r"__SUB__", commits)
+        commits = re.sub(r"/",r"\\", commits)
+        commits = re.sub(r"__SUB__", r"/", commits)
+
+        tags = run("git tag -n2 --contains=%s" % prev_tag).splitlines()
+        tags = tags[1:]      # again drop the prev tag.
+        tags = "\n".join(tags)
+        changed_tests = run("git diff --no-color --stat 7.1f0..7.1g2 | grep 'test\|behavior' | cut -d ' ' -f2 | xargs grep 'def test'").splitlines()
+        pattern = r"([^:]+):\s+def test([^(]*)\("
+        tests_by_file = {}
+        for t in changed_tests:
+            filename, testname = re.match(pattern, t).group(1,2)
+            testname = re.sub(r"(.)(?=[A-Z])", r"\1 ", testname).capitalize()  # Undo CamelCase style for readability.
+            # Create a dict of tests by file
+            tests = tests_by_file.get(filename, [])
+            tests.append(testname)
+            tests_by_file[filename] = tests
+        # Assemble a string of all the expectations (tests by file)
+        expectations = ""
+        for f in tests_by_file.keys():
+            expectations += "\n%s:\n   - " % f
+            expectations += "\n   - ".join(tests_by_file[f])
+            expectations += "\n"
+        # Generate the output
+        notes = """
+RELEASE MESSAGES
+---
+%s
+
+CHANGED EXPECTATIONS (not all tests have changed)
+---
+%s
+
+COMMIT MESSAGES
+---
+%s
+""" % (tags, expectations, commits)
+        return notes
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