ci: add .drone.yml

.drone.yml

@@ -0,0 +1,69 @@
+---
+kind: pipeline
+type: docker
+name: testing
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+  - name: hadolint
+    pull: always
+    image: ghcr.io/hadolint/hadolint:v2.10.0-alpine
+    commands:
+      - hadolint --version
+      - hadolint Containerfile
+    when:
+      ref:
+        - refs/heads/development
+        - refs/heads/feature-**
+        - refs/pull/**
+        - refs/tags/**
+      event:
+        exclude: [cron]
+
+  - name: kaniko-build
+    pull: always
+    image: docker.io/immawanderer/drone-kaniko:linux-amd64
+    settings:
+      dockerfile: Containerfile
+      context: .
+      args:
+        - BUILD_DATE="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
+        - VCS_REF=${DRONE_COMMIT_SHA:0:7}
+    when:
+      ref:
+        - refs/heads/feature-**
+        - refs/pull/**
+        - refs/tags/**
+      event:
+        exclude: [cron]
+
+  - name: kaniko-publish
+    pull: always
+    image: docker.io/immawanderer/drone-kaniko:linux-amd64
+    settings:
+      dockerfile: Containerfile
+      context: .
+      args:
+        - BUILD_DATE="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
+        - VCS_REF=${DRONE_COMMIT_SHA:0:7}
+      tags:
+        - latest
+        - linux-amd64
+        - ${DRONE_COMMIT_SHA:0:8}
+      repo: immawanderer/nix-nixpkgs-fmt
+      username:
+        from_secret: dh_username
+      password:
+        from_secret: dh_token
+    when:
+      ref:
+        - refs/heads/development
+      event:
+        exclude: [pull_request, tag]
+
+trigger:
+  event: [push, pull_request, cron, tag]
+...

.pre-commit-config.yaml

@@ -6,6 +6,13 @@ repos:
     hooks:
       - id: check-merge-conflict
       - id: check-yaml
+  - repo: local
+    hooks:
+      # this hook requires that the drone-cli tool is installed
+      - id: drone-lint
+        name: drone lint
+        entry: drone lint .drone.yml
+        language: system
   - repo: https://git.dotya.ml/wanderer/hadolint-pre-commit
     rev: v0.0.1
     hooks:

README.md

@@ -1,5 +1,6 @@
 # nix-nixfmt-pkgs
 [![pre-commit](https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit&logoColor=white)](https://github.com/pre-commit/pre-commit)
+[![Build Status](https://drone.dotya.ml/api/badges/wanderer-containers/nix-nixpkgs-fmt/status.svg)](https://drone.dotya.ml/wanderer-containers/nix-nixpkgs-fmt)
 
 the Containerfile in this repo simply installs `nixpkgs-fmt` on top of the base
 image, the rationale being this image can be cached for reuse in CI (such as