[jira] [Resolved] (AIRFLOW-1729) Ignore whole directories in .airflowignore

["Fokko Driesprong (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AIRFLOW-1729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fokko Driesprong resolved AIRFLOW-1729.
---------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Issue resolved by pull request #3171
[https://github.com/apache/incubator-airflow/pull/3171]

> Ignore whole directories in .airflowignore
> ------------------------------------------
>
>                 Key: AIRFLOW-1729
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1729
>             Project: Apache Airflow
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: Airflow 2.0
>            Reporter: Cedric Hourcade
>            Assignee: Kamil Sambor
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> The .airflowignore file allows to prevent scanning files for DAG. But even if we blacklist fulldirectory the {{os.walk}} will still go through them no matter how deep they are and skip files one by one, which can be an issue when you keep around big .git or virtualvenv directories.
> I suggest to add something like:
> {code}
> dirs[:] = [d for d in dirs if not any([re.findall(p, os.path.join(root, d)) for p in patterns])]
> {code}
> to prune the directories here: https://github.com/apache/incubator-airflow/blob/cfc2f73c445074e1e09d6ef6a056cd2b33a945da/airflow/utils/dag_processing.py#L208-L209 and in {{list_py_file_paths}}



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