docker-based linters

.github/workflows/ccpp.yml

@@ -1,27 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: deps
-      run: |
-        sudo dpkg -R python3
-        sudo add-apt-repository ppa:deadsnakes/ppa
-        sudo apt-get update
-        sudo apt-get install -y --no-install-recommends python3.8 python3.8-distutils build-essential libevent-dev libjpeg-turbo8-dev uuid-dev libbsd-dev
-        sudo python3.8 get-pip.py
-        sudo python3.8 -m pip install tox
-    - name: make
-      run: make
-    - name: make tox
-      run: make tox

.github/workflows/dockerimage.yml

@@ -0,0 +1,20 @@
+name: CI
+
+on:
+    push:
+        branches: [master]
+    pull_request:
+        branches: [master]
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+
+        steps:
+          - uses: actions/checkout@v2
+
+          - name: Building linters image ...
+            run: make linters
+
+          - name: Running linters ...
+            run: make tox

.gitignore

@@ -1,5 +1,5 @@
-/.tox/
-/.mypy_cache/
+/linters/.tox/
+/linters/.mypy_cache/
 /pkg/arch/pkg/
 /pkg/arch/src/
 /pkg/arch/v*.tar.gz

Makefile

@@ -13,6 +13,8 @@ RPI_VC_LIBS ?= /opt/vc/lib
 
 BUILD ?= build
 
+LINTERS_IMAGE ?= $(PROG)-linters
+
 
 # =====
 _LIBS = -lm -ljpeg -pthread -levent -levent_pthreads -luuid
@@ -99,8 +101,22 @@ release:
 	make clean
 
 
-tox:
-	tox -q -c tox.ini $(if $(E),-e $(E),-p auto)
+tox: linters
+	time docker run --rm \
+			--volume `pwd`:/src:ro \
+			--volume `pwd`/linters:/src/linters:rw \
+		-t $(LINTERS_IMAGE) bash -c " \
+			cd /src \
+			&& tox -q -c linters/tox.ini $(if $(E),-e $(E),-p auto) \
+		"
+
+
+linters:
+	docker build \
+			$(if $(call optbool,$(NC)),--no-cache,) \
+			--rm \
+			--tag $(LINTERS_IMAGE) \
+		-f linters/Dockerfile linters
 
 
 bump:
@@ -112,8 +128,12 @@ push:
 	git push --tags
 
 
-clean-all: clean
-	rm -rf .mypy-cache .tox
+clean-all: linters clean
+	- docker run --rm \
+			--volume `pwd`:/src \
+		-it $(LINTERS_IMAGE) bash -c "cd src && rm -rf linters/{.tox,.mypy_cache}"
 clean:
 	rm -rf pkg/arch/pkg pkg/arch/src pkg/arch/v*.tar.gz pkg/arch/ustreamer-*.pkg.tar.{xz,zst}
 	rm -rf $(PROG) $(BUILD) vgcore.* *.sock
+
+.PHONY: linters

linters/Dockerfile

@@ -0,0 +1,21 @@
+FROM archlinux/base
+
+RUN echo "Server = http://mirror.yandex.ru/archlinux/\$repo/os/\$arch" > /etc/pacman.d/mirrorlist
+
+RUN pacman -Syu --noconfirm \
+	&& pacman -S --needed --noconfirm \
+		base \
+		base-devel \
+		vim \
+		git \
+		libjpeg \
+		libevent \
+		libutil-linux \
+		libbsd \
+		python \
+		python-pip \
+		python-tox \
+		cppcheck \
+	&& (pacman -Sc --noconfirm || true)
+
+CMD /bin/bash

linters/tox.ini

@@ -4,7 +4,7 @@ skipsdist = true
 
 [testenv]
 basepython = python3.8
-sitepackages = true
+changedir = /src
 
 [testenv:cppcheck]
 whitelist_externals = cppcheck