[core] implement support for run-time dependency version checking (#8645)

* implement support for run-time dependency version checking

* try not escaping !

* use findall that works on py36

* small tweaks

* autoformatter worship

* simplify

* shorter names

* add support for non-versioned checks

* add deps

* revert

* tokenizers not required, check version only if installed

* make a proper distutils cmd and add make target

* tqdm must be checked before tokenizers

* workaround the DistributionNotFound peculiar setup

* handle the rest of packages in setup.py

* fully sync setup.py's install_requires - to check them all

* nit

* make install_requires more readable

* typo

* Update setup.py

Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* restyle

* add types

* simplify

* simplify2

Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

Makefile

@@ -1,4 +1,4 @@
-.PHONY: modified_only_fixup extra_quality_checks quality style fixup fix-copies test test-examples docs
+.PHONY: deps_table_update modified_only_fixup extra_quality_checks quality style fixup fix-copies test test-examples docs
 
 
 check_dirs := examples tests src utils
@@ -14,9 +14,14 @@ modified_only_fixup:
 		echo "No library .py files were modified"; \
 	fi
 
+# Update src/transformers/dependency_versions_table.py
+
+deps_table_update:
+	@python setup.py deps_table_update
+
 # Check that source code meets quality standards
 
-extra_quality_checks:
+extra_quality_checks: deps_table_update
 	python utils/check_copies.py
 	python utils/check_dummies.py
 	python utils/check_repo.py
@@ -32,7 +37,7 @@ quality:
 
 # Format source code automatically and check is there are any problems left that need manual fixing
 
-style:
+style: deps_table_update
 	black $(check_dirs)
 	isort $(check_dirs)
 	python utils/style_doc.py src/transformers docs/source --max_len 119