Add changelog and release facilities

packages/helpers/.release-it.json

@@ -0,0 +1,30 @@
+{
+  "plugins": {
+    "../scripts/prepublish.js": {}
+  },
+  "hooks": {
+    "after:bump": [
+      "pipx run towncrier build --draft --yes --version ${version} > .changelog.draft",
+      "pipx run towncrier build --yes --version ${version}",
+      "pnpm build --no-cache"
+    ],
+    "after:release": "rm .changelog.draft"
+  },
+  "npm": {
+    "publish": false
+  },
+  "git": {
+    "commitArgs": ["--no-verify"],
+    "changelog": "pipx run towncrier build --draft --yes --version 0.0.0",
+    "requireUpstream": false,
+    "requireCleanWorkingDir": false,
+    "commitMessage": "Release @plone/helpers ${version}",
+    "tagName": "plone-helpers-${version}",
+    "tagAnnotation": "Release @plone/helpers ${version}"
+  },
+  "github": {
+    "release": true,
+    "releaseName": "@plone/helpers ${version}",
+    "releaseNotes": "cat .changelog.draft"
+  }
+}

packages/helpers/CHANGELOG.md

@@ -0,0 +1,9 @@
+# @plone/helpers Release Notes
+
+<!-- Do *NOT* add new change log entries to this file.
+     You should create a file in the news directory instead.
+     For helpful instructions, please see:
+     https://6.docs.plone.org/contributing/index.html#contributing-change-log-label
+-->
+
+<!-- towncrier release notes start -->

packages/helpers/README.md

@@ -0,0 +1 @@
+# @plone/helpers

packages/helpers/towncrier.toml

@@ -0,0 +1,33 @@
+[tool.towncrier]
+filename = "CHANGELOG.md"
+directory = "news/"
+title_format = "## {version} ({project_date})"
+underlines = ["", "", ""]
+template = "../scripts/templates/towncrier_template.jinja"
+start_string = "<!-- towncrier release notes start -->\n"
+issue_format = "[#{issue}](https://github.com/plone/volto/issues/{issue})"
+
+[[tool.towncrier.type]]
+directory = "breaking"
+name = "Breaking"
+showcontent = true
+
+[[tool.towncrier.type]]
+directory = "feature"
+name = "Feature"
+showcontent = true
+
+[[tool.towncrier.type]]
+directory = "bugfix"
+name = "Bugfix"
+showcontent = true
+
+[[tool.towncrier.type]]
+directory = "internal"
+name = "Internal"
+showcontent = true
+
+[[tool.towncrier.type]]
+directory = "documentation"
+name = "Documentation"
+showcontent = true