src/git_flow/command/merge.py

@@ -1,3 +1,5 @@
+from typing import Optional
+
 import typer
 
 import git_flow.command.base as base
@@ -102,7 +104,7 @@ def check_merge_conflicts(target: str):
 def create_pull_request(token: str, branch: str, target: str):
     changelog = Changelog()
     commits = Git("log", target + "..", format="%s").lines()
-    title = commits[0] if len(commits) == 1 else _get_pr_title_from_branch(branch)
+    title = _get_pr_title(branch, commits)
 
     base.panel("Título del PR", title)
 
@@ -120,34 +122,42 @@ def create_pull_request(token: str, branch: str, target: str):
     base.io_success(message, "Rama creada")
 
 
-def _get_pr_title_from_branch(branch: str) -> str:
+def _get_pr_title(branch: str, commits: list[str]) -> str:
     if branch in base.environments:
         target = base.environments[base.environments.index(branch) + 1]
         return f"Sincronización de entorno {branch} a {target}"
 
     components = branch.split("/")  # <type>/<desc> or release/<env>/<type>/<desc>
+    release_prefix = f"[Pasaje a {components[1]}]" if len(components) == 4 else None
     branch_type = components[-2]
-    branch_desc = components[-1]
+    branch_ticket, branch_desc = _extract_ticket_from_branch(components[-1])
 
-    # detect if branch description has ticket as prefix: <desc> = ABC-123-my-branch-name
-    branch_ticket = None
-    first_dash = branch_desc.find("-")
-    second_dash = branch_desc.find("-", first_dash + 1)
-
-    if first_dash >= 0 and second_dash >= 0:
-        maybe_ticket = branch_desc[:second_dash]
-        if base.is_valid_ticket(maybe_ticket):
-            branch_ticket = maybe_ticket
-            branch_desc = branch_desc[second_dash + 1 :]
+    # when there's a single commit, use it as the PR description instead of
+    # deriving one from the branch name, but keep the release prefix / ticket
+    if len(commits) == 1:
+        return " ".join(filter(None, [release_prefix, branch_ticket, commits[0]]))
 
     return " ".join(
         filter(
             None,
             [
-                f"[Pasaje a {components[1]}]" if len(components) == 4 else None,
+                release_prefix,
                 branch_type + ":",
                 branch_ticket,
                 branch_desc.replace("-", " "),
             ],
         )
     )
+
+
+def _extract_ticket_from_branch(branch_desc: str) -> tuple[Optional[str], str]:
+    """detect if branch description has ticket as prefix: <desc> = ABC-123-my-branch-name"""
+    first_dash = branch_desc.find("-")
+    second_dash = branch_desc.find("-", first_dash + 1)
+
+    if first_dash >= 0 and second_dash >= 0:
+        maybe_ticket = branch_desc[:second_dash]
+        if base.is_valid_ticket(maybe_ticket):
+            return maybe_ticket, branch_desc[second_dash + 1 :]
+
+    return None, branch_desc