feat: add PR link support in changelog updates

pr_agent/settings/configuration.toml

@@ -162,6 +162,7 @@ class_name = ""        # in case there are several methods with the same name in
 [pr_update_changelog] # /update_changelog #
 push_changelog_changes=false
 extra_instructions = ""
+add_pr_link=true
 
 [pr_analyze] # /analyze #
 enable_help_text=true

pr_agent/settings/pr_update_changelog_prompts.toml

@@ -5,6 +5,9 @@ Your task is to add a brief summary of this PR's changes to CHANGELOG.md file of
 - Only add new changes (don't repeat existing entries)
 - Be general, and avoid specific details, files, etc. The output should be minimal, no more than 3-4 short lines.
 - Write only the new content to be added to CHANGELOG.md, without any introduction or summary. The content should appear as if it's a natural part of the existing file.
+{%- if pr_link %}
+- If relevant, convert the changelog main header into a clickable link using the PR URL '{{ pr_link }}'. Format: header [*][pr_link]
+{%- endif %}
 
 
 {%- if extra_instructions %}

pr_agent/tools/pr_update_changelog.py

@@ -41,6 +41,7 @@ class PRUpdateChangelog:
             "description": self.git_provider.get_pr_description(),
             "language": self.main_language,
             "diff": "",  # empty diff for initial calculation
+            "pr_link": "",
             "changelog_file_str": self.changelog_file_str,
             "today": date.today(),
             "extra_instructions": get_settings().pr_update_changelog.extra_instructions,
@@ -102,6 +103,8 @@ class PRUpdateChangelog:
     async def _get_prediction(self, model: str):
         variables = copy.deepcopy(self.vars)
         variables["diff"] = self.patches_diff  # update diff
+        if get_settings().pr_update_changelog.add_pr_link:
+            variables["pr_link"] = self.git_provider.get_pr_url()
         environment = Environment(undefined=StrictUndefined)
         system_prompt = environment.from_string(get_settings().pr_update_changelog_prompt.system).render(variables)
         user_prompt = environment.from_string(get_settings().pr_update_changelog_prompt.user).render(variables)