build: automate triggering kit builds on github actions

Author: nedbat

Makefile

@@ -131,7 +131,7 @@ sample_html_beta: _sample_cog_html	## Generate sample HTML report for a beta rel
 
 ##@ Kitting: making releases
 
-.PHONY: kit kit_upload test_upload kit_local download_kits check_kits tag
+.PHONY: kit kit_upload test_upload kit_local build_kits download_kits check_kits tag
 .PHONY: update_stable comment_on_fixes
 
 kit:					## Make the source distribution.
@@ -152,6 +152,9 @@ kit_local:
 	# don't go crazy trying to figure out why our new code isn't installing.
 	find ~/Library/Caches/pip/wheels -name 'coverage-*' -delete
 
+build_kits:				## Trigger GitHub to build kits
+	python ci/trigger_build_kits.py nedbat/coveragepy
+
 download_kits:				## Download the built kits from GitHub.
 	python ci/download_gha_artifacts.py nedbat/coveragepy
 

ci/trigger_build_kits.py

@@ -0,0 +1,26 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt
+
+"""Trigger the GitHub action to build our kits."""
+
+import sys
+
+import requests
+
+repo_owner = sys.argv[1]
+
+# The GitHub URL makes no mention of which workflow to use. It's found based on
+# the event_type, which matches the types in the workflow:
+#
+#   on:
+#     repository_dispatch:
+#       types:
+#         - build-kits
+#
+
+resp = requests.post(
+    f"https://api.github.com/repos/{repo_owner}/dispatches",
+    json={"event_type": "build-kits"},
+)
+print(f"Status: {resp.status_code}")
+print(resp.text)

howto.txt

@@ -40,8 +40,10 @@
     - ELSE:
         $ make publish
 - Kits:
-    - Manually trigger the kit GitHub Action
-        - https://github.com/nedbat/coveragepy/actions/workflows/kit.yml
+    - Trigger the kit GitHub Action
+        $ make build_kits
+        - wait for it to finish:
+            - https://github.com/nedbat/coveragepy/actions/workflows/kit.yml
     - Download and check built kits from GitHub Actions:
         $ make clean download_kits check_kits
     - examine the dist directory, and remove anything that looks malformed.