feat: #1631: enable change log as part of release script

Signed-off-by: Harsha Narayana <harsha2k4@gmail.com>

Makefile

@@ -86,9 +86,10 @@ docs-test: docs-clean
 changelog:
 	python scripts/changelog.py
 
-release: changelog
+release:
 ifdef version
-	python scripts/release.py --release-version ${version}
+	python scripts/release.py --release-version ${version} --generate-changelog
 else
-	python scripts/release.py
+	python scripts/release.py --generate-changelog
 endif
+

scripts/release.py

@@ -10,6 +10,7 @@ from subprocess import Popen, PIPE
 
 from jinja2 import Environment, BaseLoader
 from requests import patch
+import towncrier
 
 GIT_COMMANDS = {
     "get_tag": ["git describe --tags --abbrev=0"],
@@ -130,7 +131,7 @@ def _get_current_tag(git_command_name="get_tag"):
 
 
 def _update_release_version_for_sanic(
-    current_version, new_version, config_file
+    current_version, new_version, config_file, generate_changelog
 ):
     config_parser = RawConfigParser()
     with open(config_file) as cfg:
@@ -156,6 +157,16 @@ def _update_release_version_for_sanic(
     with open(config_file, "w") as config:
         config_parser.write(config)
 
+    if generate_changelog:
+        towncrier.__main(
+            draft=False,
+            directory=path.dirname(path.abspath(__file__)),
+            project_name=None,
+            project_version=new_version,
+            project_date=None,
+            answer_yes=True,
+        )
+
     command = GIT_COMMANDS.get("commit_version_change")
     command[0] = command[0].format(
         new_version=new_version, current_version=current_version
@@ -253,6 +264,7 @@ def release(args: Namespace):
         current_version=current_version,
         new_version=new_version,
         config_file=args.config,
+        generate_changelog=args.generate_changelog,
     )
     if args.tag_release:
         _tag_release(
@@ -321,6 +333,13 @@ if __name__ == "__main__":
         action="store_true",
         required=False,
     )
+    cli.add_argument(
+        "--generate-changelog",
+        help="Generate changelog for Sanic as part of release",
+        default=False,
+        action="store_true",
+        required=False,
+    )
     args = cli.parse_args()
     if args.tag_release:
         for key, value in {