ci: separate cache for UI jobs and selective test

This is reusing normal cache which doesn't contain half the things

.github/helper/roulette.py

@@ -17,39 +17,57 @@ def fetch_pr_data(pr_number, repo, endpoint=""):
 
 	req = urllib.request.Request(api_url)
 	res = urllib.request.urlopen(req)
-	return json.loads(res.read().decode('utf8'))
+	return json.loads(res.read().decode("utf8"))
+
 
 def get_files_list(pr_number, repo="frappe/frappe"):
 	return [change["filename"] for change in fetch_pr_data(pr_number, repo, "files")]
 
+
 def get_output(command, shell=True):
 	print(command)
 	command = shlex.split(command)
 	return subprocess.check_output(command, shell=shell, encoding="utf8").strip()
 
+
 def has_skip_ci_label(pr_number, repo="frappe/frappe"):
 	return has_label(pr_number, "Skip CI", repo)
 
+
 def has_run_server_tests_label(pr_number, repo="frappe/frappe"):
 	return has_label(pr_number, "Run Server Tests", repo)
 
+
 def has_run_ui_tests_label(pr_number, repo="frappe/frappe"):
 	return has_label(pr_number, "Run UI Tests", repo)
 
+
 def has_label(pr_number, label, repo="frappe/frappe"):
-	return any([fetched_label["name"] for fetched_label in fetch_pr_data(pr_number, repo)["labels"] if fetched_label["name"] == label])
+	return any(
+		[
+			fetched_label["name"]
+			for fetched_label in fetch_pr_data(pr_number, repo)["labels"]
+			if fetched_label["name"] == label
+		]
+	)
+
 
 def is_py(file):
 	return file.endswith("py")
 
+
 def is_ci(file):
 	return ".github" in file
 
+
 def is_frontend_code(file):
-	return file.lower().endswith((".css", ".scss", ".less", ".sass", ".styl", ".js", ".ts", ".vue", ".html"))
+	return file.lower().endswith(
+		(".css", ".scss", ".less", ".sass", ".styl", ".js", ".ts", ".vue", ".html")
+	)
+
 
 def is_docs(file):
-	regex = re.compile(r'\.(md|png|jpg|jpeg|csv|svg)$|^.github|LICENSE')
+	regex = re.compile(r"\.(md|png|jpg|jpeg|csv|svg)$|^.github|LICENSE")
 	return bool(regex.search(file))
 
 
@@ -77,8 +95,13 @@ if __name__ == "__main__":
 	only_py_changed = updated_py_file_count == len(files_list)
 
 	if has_skip_ci_label(pr_number, repo):
-		print("Found `Skip CI` label on pr, stopping build process.")
-		sys.exit(0)
+		if build_type == "ui" and has_run_ui_tests_label(pr_number, repo):
+			print("Running UI tests only.")
+		elif build_type == "server" and has_run_server_tests_label(pr_number, repo):
+			print("Running server tests only.")
+		else:
+			print("Found `Skip CI` label on pr, stopping build process.")
+			sys.exit(0)
 
 	elif ci_files_changed:
 		print("CI related files were updated, running all build processes.")
@@ -87,7 +110,11 @@ if __name__ == "__main__":
 		print("Only docs were updated, stopping build process.")
 		sys.exit(0)
 
-	elif only_frontend_code_changed and build_type == "server" and not has_run_server_tests_label(pr_number, repo):
+	elif (
+		only_frontend_code_changed
+		and build_type == "server"
+		and not has_run_server_tests_label(pr_number, repo)
+	):
 		print("Only Frontend code was updated; Stopping Python build process.")
 		sys.exit(0)
 

.github/workflows/ui-tests.yml

@@ -101,18 +101,15 @@ jobs:
         id: yarn-cache
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          key: ${{ runner.os }}-yarn-ui-${{ hashFiles('**/yarn.lock') }}
           restore-keys: |
-            ${{ runner.os }}-yarn-
+            ${{ runner.os }}-yarn-ui-
 
       - name: Cache cypress binary
         uses: actions/cache@v3
         with:
-          path: ~/.cache
-          key: ${{ runner.os }}-cypress-
-          restore-keys: |
-            ${{ runner.os }}-cypress-
-            ${{ runner.os }}-
+          path: ~/.cache/Cypress
+          key: ${{ runner.os }}-cypress
 
       - name: Install Dependencies
         run: |