pipenv: re-add black

.github/workflows/python-code-format.yml

@@ -7,14 +7,18 @@ on:
 jobs:
   build:
     runs-on: ubuntu-18.04
+    strategy:
+      matrix:
+        python-version:
+        - 3.8
     steps:
     - uses: actions/checkout@v1
     - uses: actions/setup-python@v1
       with:
-        # black requires python>=3.6
-        # https://github.com/psf/black/commit/e74117f172e29e8a980e2c9de929ad50d3769150#diff-2eeaed663bd0d25b7e608891384b7298R51
-        python-version: 3.8
-    - run: python --version
-    - run: pip install --upgrade black==19.10b0
-    - run: pip freeze
-    - run: black --check .
+        python-version: ${{ matrix.python-version }}
+    - run: pip install --upgrade pipenv>=2018.10.9
+    - run: pipenv install --python "$PYTHON_VERSION" --deploy --dev
+      env:
+        PYTHON_VERSION: ${{ matrix.python-version }}
+    - run: pipenv graph
+    - run: pipenv run black --check .

Pipfile

@@ -7,7 +7,7 @@ name = "pypi"
 ical2vdir = {editable = true,path = "."}
 # black requires python>=3.6
 # https://github.com/psf/black/commit/e74117f172e29e8a980e2c9de929ad50d3769150#diff-2eeaed663bd0d25b7e608891384b7298R51
-#black = "==19.10b0"
+black = {version = "==19.10b0", markers="python_version >= '3.6'"}
 mypy = "*"
 # workaround https://github.com/pytest-dev/pytest/issues/3953
 pathlib2 = {version = "*", markers="python_version < '3.6'"}

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "500e0ee94637ca56d7d6f23e649e4d1225e7eead4c5de2f82c5b1438098435e4"
+            "sha256": "fb37af933e93a3dc17d6b12d1262d48e818d660ce2264a71a13b24a5112e7e1e"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -17,6 +17,13 @@
     },
     "default": {},
     "develop": {
+        "appdirs": {
+            "hashes": [
+                "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41",
+                "sha256:a841dacd6b99318a741b166adb07e19ee71a274450e68237b4650ca1055ab128"
+            ],
+            "version": "==1.4.4"
+        },
         "astroid": {
             "hashes": [
                 "sha256:2f4078c2a41bf377eea06d71c9d2ba4eb8f6b1af2135bec27bbbb7d8f12bb703",
@@ -31,6 +38,22 @@
             ],
             "version": "==19.3.0"
         },
+        "black": {
+            "hashes": [
+                "sha256:1b30e59be925fafc1ee4565e5e08abef6b03fe455102883820fe5ee2e4734e0b",
+                "sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539"
+            ],
+            "index": "pypi",
+            "markers": "python_version >= '3.6'",
+            "version": "==19.10b0"
+        },
+        "click": {
+            "hashes": [
+                "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a",
+                "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"
+            ],
+            "version": "==7.1.2"
+        },
         "coverage": {
             "hashes": [
                 "sha256:00f1d23f4336efc3b311ed0d807feb45098fc86dee1ca13b3d6768cdab187c8a",
@@ -176,6 +199,13 @@
             "markers": "python_version < '3.6'",
             "version": "==2.3.5"
         },
+        "pathspec": {
+            "hashes": [
+                "sha256:7d91249d21749788d07a2d0f94147accd8f845507400749ea19c1ec9054a12b0",
+                "sha256:da45173eb3a6f2a5a487efba21f050af2b41948be6ab52b6a1e3ff22bb8b7061"
+            ],
+            "version": "==0.8.0"
+        },
         "pluggy": {
             "hashes": [
                 "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
@@ -243,6 +273,32 @@
             ],
             "version": "==2020.1"
         },
+        "regex": {
+            "hashes": [
+                "sha256:08997a37b221a3e27d68ffb601e45abfb0093d39ee770e4257bd2f5115e8cb0a",
+                "sha256:112e34adf95e45158c597feea65d06a8124898bdeac975c9087fe71b572bd938",
+                "sha256:1700419d8a18c26ff396b3b06ace315b5f2a6e780dad387e4c48717a12a22c29",
+                "sha256:2f6f211633ee8d3f7706953e9d3edc7ce63a1d6aad0be5dcee1ece127eea13ae",
+                "sha256:52e1b4bef02f4040b2fd547357a170fc1146e60ab310cdbdd098db86e929b387",
+                "sha256:55b4c25cbb3b29f8d5e63aeed27b49fa0f8476b0d4e1b3171d85db891938cc3a",
+                "sha256:5aaa5928b039ae440d775acea11d01e42ff26e1561c0ffcd3d805750973c6baf",
+                "sha256:654cb773b2792e50151f0e22be0f2b6e1c3a04c5328ff1d9d59c0398d37ef610",
+                "sha256:690f858d9a94d903cf5cada62ce069b5d93b313d7d05456dbcd99420856562d9",
+                "sha256:6ad8663c17db4c5ef438141f99e291c4d4edfeaacc0ce28b5bba2b0bf273d9b5",
+                "sha256:89cda1a5d3e33ec9e231ece7307afc101b5217523d55ef4dc7fb2abd6de71ba3",
+                "sha256:92d8a043a4241a710c1cf7593f5577fbb832cf6c3a00ff3fc1ff2052aff5dd89",
+                "sha256:95fa7726d073c87141f7bbfb04c284901f8328e2d430eeb71b8ffdd5742a5ded",
+                "sha256:97712e0d0af05febd8ab63d2ef0ab2d0cd9deddf4476f7aa153f76feef4b2754",
+                "sha256:b2ba0f78b3ef375114856cbdaa30559914d081c416b431f2437f83ce4f8b7f2f",
+                "sha256:bae83f2a56ab30d5353b47f9b2a33e4aac4de9401fb582b55c42b132a8ac3868",
+                "sha256:c78e66a922de1c95a208e4ec02e2e5cf0bb83a36ceececc10a72841e53fbf2bd",
+                "sha256:cf59bbf282b627130f5ba68b7fa3abdb96372b24b66bdf72a4920e8153fc7910",
+                "sha256:e3cdc9423808f7e1bb9c2e0bdb1c9dc37b0607b30d646ff6faf0d4e41ee8fee3",
+                "sha256:e9b64e609d37438f7d6e68c2546d2cb8062f3adb27e6336bc129b51be20773ac",
+                "sha256:fbff901c54c22425a5b809b914a3bfaf4b9570eee0e5ce8186ac71eb2025191c"
+            ],
+            "version": "==2020.6.8"
+        },
         "six": {
             "hashes": [
                 "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
@@ -281,7 +337,6 @@
                 "sha256:fc0fea399acb12edbf8a628ba8d2312f583bdbdb3335635db062fa98cf71fca4",
                 "sha256:fe460b922ec15dd205595c9b5b99e2f056fd98ae8f9f56b888e7a17dc2b757e7"
             ],
-            "markers": "implementation_name == 'cpython' and python_version < '3.8'",
             "version": "==1.4.1"
         },
         "typing-extensions": {