+github.com/psf/black (#890)

* +github.com/psf/black

* Fixed blackd

* Changed EXTRA_DEPS to OPTIONAL_DEPS

* Switch from python-venv.sh and ENV VAR to python-venv.py and arg; better test

---------

Co-authored-by: James Reynolds <magnsuviri@me.com>

projects/github.com/psf/black/package.yml

@@ -0,0 +1,24 @@
+distributable:
+  url: https://github.com/psf/black/archive/refs/tags/{{ version }}.tar.gz
+  strip-components: 1
+
+versions:
+  github: psf/black/releases/tags
+  strip: /^v/
+
+dependencies:
+  python.org: '>=3.7'
+
+build:
+  script: |
+    python-venv.py {{prefix}}/bin/black --extra d
+    cp {{prefix}}/bin/black {{prefix}}/bin/blackd
+
+provides:
+  - bin/black
+  - bin/blackd
+
+test:
+  script: |
+    test "$(black --version | grep black | sed 's/.*, \([^ ]*\) .*/\1/')" = "{{ version }}"
+    test "$(blackd --version | sed 's/.* //')" = "{{ version }}"