add drone pipeline

.drone.yml

@@ -0,0 +1,51 @@
+---
+kind: pipeline
+type: kubernetes
+name: python
+
+steps:
+- name: test
+  image: python:latest
+  commands:
+  - pip install -q --upgrade pre-commit
+  - pre-commit run --all-files
+#  - flake8 --ignore=E501,W503,E265
+#  - mypy --ignore-missing-imports ./tenkan/
+#  - pylint --disable=E1101,E0401,C0301,W1514,C0114 ./tenkan/
+#  - pytest ./tests/
+
+- name: publish_pypi
+  image: plugins/pypi
+  settings:
+    username:
+      from_secret: pypi_username
+    password:
+      from_secret: pypi_password
+  when:
+    branch:
+    - master
+
+- name: push_docker
+  image: plugins/docker
+  settings:
+    username:
+      from_secret: docker_username
+    password:
+      from_secret: docker_password
+    repo: takaoni/tenkan
+    tags: latest
+  when:
+    branch:
+    - master
+
+- name: deploy_kube
+  kube:
+    image: takaoni/drone-kube
+    template: apps/tenkan.yaml
+    namespace: gemini
+    server:
+      from_secret: kube_server 
+  when:
+    branch:
+    - master
+

README.md

@@ -1,3 +1,5 @@
+[![Build Status](https://drone.fqserv.eu/api/badges/takaoni/tenkan/status.svg)](https://drone.fqserv.eu/takaoni/tenkan)
+
 # tenkan
 
 Command line tool to convert HTTP RSS/Atom feeds to gemini format.

tenkan/files.py

@@ -27,7 +27,7 @@ def write_files(path: str, data: dict, max_num_entries: int) -> None:
     num_entries = 0
     # count entries in index file
     if pathlib.Path(f'{path}/index.gmi').is_file():
-        num_entries = sum(1 for line in open(f'{path}/index.gmi'))
+        num_entries = sum(1 for line in open(f'{path}/index.gmi'))  # pylint: disable=consider-using-with
 
     # if there is more articles than defined in max_num_entries, delete and rewrite
     if num_entries > max_num_entries: