transformers-cli: LFS multipart uploads (> 5GB) (#8663)

* initial commit

* [cli] lfs commands

* Fix FileSlice

* Tweak to FileSlice

* [hf_api] Backport filetype arg from `datasets`

cc @lhoestq

* Silm down the CI while i'm working

* Ok let's try this in CI

* Update config.yml

* Do not try this at home

* one more try

* Update lfs.py

* Revert "Tweak to FileSlice"

This reverts commit d7e32c4b3500400486411e85a2b74e57fb6b52f5.

* Update test_hf_api.py

* Update test_hf_api.py

* Update test_hf_api.py

* CI still green?

* make CI green again?

* Update test_hf_api.py

* make CI red again?

* Update test_hf_api.py

* add CI style back

* Fix CI?

* oh my

* doc + switch back to real staging endpoint

* Apply suggestions from code review

Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Pierric Cistac <Pierrci@users.noreply.github.com>

* Fix docblock + f-strings

Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Pierric Cistac <Pierrci@users.noreply.github.com>

.circleci/config.yml

@@ -301,6 +301,22 @@ jobs:
             - store_artifacts:
                   path: ~/transformers/reports
 
+    run_tests_git_lfs:
+        working_directory: ~/transformers
+        docker:
+            - image: circleci/python:3.7
+        resource_class: xlarge
+        parallelism: 1
+        steps:
+            - checkout
+            - run: sudo apt-get install git-lfs
+            - run: |
+                git config --global user.email "ci@dummy.com"
+                git config --global user.name "ci"
+            - run: pip install --upgrade pip
+            - run: pip install .[testing]
+            - run: RUN_GIT_LFS_TESTS=1 python -m pytest -sv ./tests/test_hf_api.py -k "HfLargefilesTest"
+
     build_doc:
         working_directory: ~/transformers
         docker:
@@ -428,6 +444,7 @@ workflows:
             - run_tests_flax
             - run_tests_pipelines_torch
             - run_tests_pipelines_tf
+            - run_tests_git_lfs
             - build_doc
             - deploy_doc: *workflow_filters
     tpu_testing_jobs: