Add bundled install extras. (#4443)

* add an `[all]` extras_requires

* can go here

* add a [dev] which includes [all] + development extras (style, test, docs)

* special case all and dev in update message

* Optimize by changing the place of the check for "special" extras

Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

redbot/core/events.py

@@ -119,7 +119,7 @@ def init_events(bot, cli_flags):
                 if expected_version(current_python, py_version_req):
                     installed_extras = []
                     for extra, reqs in red_pkg._dep_map.items():
-                        if extra is None:
+                        if extra is None or extra in {"dev", "all"}:
                             continue
                         try:
                             pkg_resources.require(req.name for req in reqs)

setup.cfg

@@ -111,6 +111,13 @@ test =
     six==1.15.0
     toml==0.10.1
     wrapt==1.12.1
+all =
+    %(postgres)s
+dev =
+    %(all)s
+    %(docs)s
+    %(style)s
+    %(test)s
 
 [options.entry_points]
 console_scripts =

tools/dev-requirements.txt

@@ -1,3 +1,3 @@
 packaging
 tox
--e .[docs,postgres,style,test]
+-e .[dev]