Tidy project

.flake8

@@ -0,0 +1,3 @@
+[flake8]
+max-line-length = 120
+ignore = B007,B305,E203,E731,F405,W503

.github/workflows/linters.yaml

@@ -1,18 +1,24 @@
 name: linters
 on: [push]
 jobs:
-  black:
+  pre-commit:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
           python-version: 3.6
-      - name: Install dependencies
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cache/pypoetry
+          key: py3.6-poetry-${{ hashFiles('**/poetry.lock') }}
+          restore-keys: |
+            py-poetry-
+      - name: Install Dependencies
         run: |
           python -m pip install --upgrade pip
-          python -m pip install --upgrade black
+          python -m pip install poetry
+          python -m poetry install
       - name: Run linters
-        run: |
-          black --check --exclude "migrations" django_unmigrate
+        uses: pre-commit/action@v2.0.0

.pre-commit-config.yaml

@@ -0,0 +1,28 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-case-conflict
+      - id: check-merge-conflict
+      - id: check-symlinks
+      - id: check-toml
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+  - repo: local
+    hooks:
+      - id: black
+        name: black
+        entry: bash -c 'poetry run black $1'
+        language: system
+        types: [python]
+      - id: isort
+        name: isort
+        entry: bash -c 'poetry run isort $1'
+        language: system
+        types: [python]
+      - id: flake8
+        name: flake8
+        entry: bash -c 'poetry run flake8 $1'
+        language: system
+        types: [python]

django_unmigrate/core.py

@@ -3,7 +3,6 @@
 
 from django.db import connections
 from django.db.migrations.loader import MigrationLoader
-
 from git import Repo
 from git.exc import GitCommandError
 
@@ -66,7 +65,7 @@ def get_parents_from_targets(targets, database="default"):
     # Since targets could be nodes of the same path, we need to discard the
     # plans that are subsets of a bigger one
     for target, plan in plan_dict.items():
-        if any([plan & iter_plan == plan for iter_plan in plan_dict.values() if iter_plan != plan]):
+        if any(plan & iter_plan == plan for iter_plan in plan_dict.values() if iter_plan != plan):
             # This plan is a subset of an existing plan, so we ignore it
             continue
         final_targets.append(target)

django_unmigrate/settings.py

@@ -1,4 +1,3 @@
 from django.conf import settings
 
-
 MAIN_BRANCH = getattr(settings, "MAIN_BRANCH", "master")

dunm_sandbox/myapp/migrations/0002_mymodel_tz_created.py

@@ -1,19 +1,19 @@
 # Generated by Django 3.0.5 on 2020-05-02 01:43
 
-from django.db import migrations, models
 import django.utils.timezone
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('myapp', '0001_initial'),
+        ("myapp", "0001_initial"),
     ]
 
     operations = [
         migrations.AddField(
-            model_name='mymodel',
-            name='tz_created',
+            model_name="mymodel",
+            name="tz_created",
             field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now),
             preserve_default=False,
         ),