feat: skip if the publiccode.yml was updated

Don't open or update the issue if the publiccode.yml was updated
after the log date, but instead skip the repo and postpone the check to
the next run (usually after 24 hours).

If the publiccode.yml has changed it means the maintainer did potentially
made our error obsolete, or might have fixed all the errors, making the
publiccode.yml valid, and at that point it's fair for them to close the
issue.

Without this check, we'd be annoyingly reopen an obsolete issue.

main.py

@@ -19,7 +19,9 @@
 API_BASEURL = os.getenv("API_BASEURL", "https://api.developers.italia.it/v1")
 GITHUB_USERNAME = os.getenv("GITHUB_USERNAME", "publiccode-validator-bot")
 
-SoftwareLog = namedtuple("SoftwareLog", "log_url software formatted_error_output")
+SoftwareLog = namedtuple(
+    "SoftwareLog", "log_url software formatted_error_output datetime"
+)
 
 
 def to_markdown(error: str, repo_url: str) -> str:
@@ -124,9 +126,19 @@ def software_logs(days):
                 f'{API_BASEURL}/logs/{log["id"]}',
                 software,
                 to_markdown(match.group("parser_output"), software["url"]),
+                datetime.fromisoformat(log["createdAt"]),
             )
 
 
+def publiccodeyml_last_change(repo: github.Repository) -> datetime:
+    commits = repo.get_commits(path="publiccode.yml")
+
+    if commits.totalCount == 0:
+        return datetime.fromtimestamp(0)
+
+    return commits[0].commit.author.date.replace(tzinfo=timezone.utc)
+
+
 def issues(gh: github.Github, repo: str) -> list[github.Issue.Issue]:
     issues = gh.search_issues(
         "publiccode.yml in:title state:open is:issue",
@@ -215,15 +227,19 @@ def run(gh, since, dry_run, lang):
             iss = issues(gh, repo_path)
 
             issue = has_issue(iss)
+            repo = gh.get_repo(f"{repo_path}", lazy=True)
             if not issue:
-                repo = gh.get_repo(f"{repo_path}", lazy=True)
                 print(f"➕ Creating issue for {url}...")
                 if not dry_run:
                     repo.create_issue(
                         title="Errors in publiccode.yml file", body=content
                     )
 
                 issues_created += 1
+            elif publiccodeyml_last_change(repo) >= log.datetime:
+                print(
+                    f"⌛ publiccode.yml was changed in the repo after our log, doing nothing ({url})"
+                )
             elif should_update_issue(sha1sum, issue):
                 print(f"🔄 Updating issue for {url}...")
                 if not dry_run:
@@ -238,7 +254,10 @@ def run(gh, since, dry_run, lang):
                 reset_timestamp = int(e.headers.get("x-ratelimit-reset", 0))
                 sleep_duration = max(0, reset_timestamp - int(time.time()) + 10)
 
-                print(f"Rate limit exceeded. Sleeping for {sleep_duration} seconds...", end="")
+                print(
+                    f"Rate limit exceeded. Sleeping for {sleep_duration} seconds...",
+                    end="",
+                )
                 sys.stdout.flush()
                 time.sleep(sleep_duration)
                 print("done")