Add 'git-obs pr cancel-scheduled-merge' command

osc/commands_git/pr_cancel_scheduled_merge.py

@@ -0,0 +1,35 @@
+import osc.commandline_git
+
+
+class PullRequestCancelScheduledMergeCommand(osc.commandline_git.GitObsCommand):
+    """
+    Cancel scheduled merge of pull requests
+    """
+
+    name = "cancel-scheduled-merge"
+    parent = "PullRequestCommand"
+
+    def init_arguments(self):
+        self.add_argument(
+            "id",
+            nargs="+",
+            help="Pull request ID in <owner>/<repo>#<number> format",
+        )
+
+    def run(self, args):
+        from osc import gitea_api
+
+        self.print_gitea_settings()
+
+        pull_request_ids = args.id
+
+        for pr_index, pr_id in enumerate(pull_request_ids):
+            print(f"Canceling scheduled merge of {pr_id}...")
+
+            owner, repo, number = gitea_api.PullRequest.split_id(pr_id)
+            gitea_api.PullRequest.cancel_scheduled_merge(
+                self.gitea_conn,
+                owner,
+                repo,
+                number,
+            )

osc/gitea_api/pr.py

@@ -506,3 +506,25 @@ class PullRequest:
             conn.request("POST", url, json_data=json_data, context={"owner": owner, "repo": repo})
         except AutoMergeAlreadyScheduled:
             pass
+
+    @classmethod
+    def cancel_scheduled_merge(
+        cls,
+        conn: Connection,
+        owner: str,
+        repo: str,
+        number: int,
+    ) -> GiteaHTTPResponse:
+        """
+        Cancel scheduled merge of a pull request.
+        """
+        from .exceptions import GiteaException
+
+        url = conn.makeurl("repos", owner, repo, "pulls", str(number), "merge")
+        try:
+            conn.request("DELETE", url, context={"owner": owner, "repo": repo})
+        except GiteaException as e:
+            # Gitea returns 404 when there's no scheduled merge or if the pull request doesn't exist
+            # the error message is the same and it's not possible to distinguish between the two cases.
+            if e.status != 404:
+                raise