Cache LFS objects in the tests workflow (#2194)

* Cache LFS objects (actions/checkout#165)

* Delete steps to see file size

Delete commented step which used to download LFS objects using the bash script

* Add lfs:false flag

* Add my username to .mailmap

* Cache hit and allow pytest to run all tests

* Do git lfs checkout if the cache key is found

.github/workflows/tests.yml

@@ -47,8 +47,33 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Download reference data
-        run: bash .ci-helpers/download_reference_data.sh
+      - name: Clone tardis-sn/tardis-refdata
+        uses: actions/checkout@v2
+        with:
+          repository: tardis-sn/tardis-refdata
+          path: tardis-refdata
+          lfs: false
+
+      - name: Create LFS file list
+        run: git lfs ls-files -l | cut -d' ' -f1 | sort > .lfs-assets-id
+        working-directory: tardis-refdata
+
+      - name: Restore LFS cache
+        uses: actions/cache@v2
+        id: lfs-cache
+        with:
+          path: tardis-refdata/.git/lfs
+          key: ${{ runner.os }}-lfs-${{ hashFiles('tardis-refdata/.lfs-assets-id') }}-v1
+
+      - name: Git LFS Pull
+        run: git lfs pull
+        working-directory: tardis-refdata
+        if: steps.lfs-cache.outputs.cache-hit != 'true'
+
+      - name: Git LFS Checkout
+        run: git lfs checkout
+        working-directory: tardis-refdata
+        if: steps.lfs-cache.outputs.cache-hit == 'true'
 
       - name: Setup environment
         uses: conda-incubator/setup-miniconda@v2

.mailmap

@@ -33,6 +33,7 @@ Arjun Savel <asavel@gmail.com> Arjun Savel <35353555+arjunsavel@users.noreply.gi
 
 Atharva Arya <aryaatharva18@gmail.com>
 Atharva Arya <aryaatharva18@gmail.com> Atharva Arya <aryaa_1@rknec.edu>
+Atharva Arya <aryaatharva18@gmail.com> atharva-2001 <aryaa_1@rknec.edu>
 Atharva Arya <aryaatharva18@gmail.com> Atharva Arya <55894364+atharva-2001@users.noreply.github.com>
 
 Atharwa Kharkar <atharwa.kharkar19@vit.edu>