make converter script work without account mapping file (#31)
diff --git a/migration/README.md b/migration/README.md
index 6f3c689..7a80141 100644
--- a/migration/README.md
+++ b/migration/README.md
@@ -63,7 +63,7 @@
`src/jira2github_import.py` converts Jira dumps into GitHub data that are importable to [issue import API](https://gist.github.com/jonmagic/5282384165e0f86ef105). Converted JSON data is saved in `migration/github-import-data`.
-This also resolves all Jira user ID - GitHub account alignment if the account mapping is given in `mapping-data/account-map.csv`. If you have no mapping, `cp mapping-data/account-map.csv{.example,}`.
+This also resolves all Jira user ID - GitHub account alignment if the account mapping is given in `mapping-data/account-map.csv`.
```
(.venv) migration $ python src/jira2github_import.py --min 10500 --max 10510
diff --git a/migration/src/jira2github_import.py b/migration/src/jira2github_import.py
index ef789d3..9eebcd2 100644
--- a/migration/src/jira2github_import.py
+++ b/migration/src/jira2github_import.py
@@ -198,7 +198,7 @@
output_dir.mkdir()
assert output_dir.exists()
- account_map = read_account_map(account_mapping_file) if account_mapping_file else {}
+ account_map = read_account_map(account_mapping_file) if account_mapping_file.exists() else {}
issues = []
if args.issues:
