delete caches if they get too large after a run

.github/workflows/build.yml

@@ -17,7 +17,6 @@ permissions:
 env:
   PANTS_CONFIG_FILES: "pants.ci.toml"
 
-
 jobs:
   test:
     name: Test
@@ -48,5 +47,13 @@ jobs:
       - name: Run tests
         run: |
           pants test --use-coverage ::
-      - name: Run codecov
-        uses: codecov/codecov-action@v3
+  delete-cache-if-too-big:
+    name: delete-cache
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Delete cache if too big
+        run: |
+          delete_cache_if_too_big ~/.cache/nce 512
+          delete_cache_if_too_big ~/.cache/pants/named_caches 1024

delete_cache_if_too_big.sh

@@ -0,0 +1,9 @@
+function delete_cache_if_too_big() {
+   path=$1
+   limit_mb=$2
+   size_mb=$(du -m -d0 "${path}" | cut -f 1)
+   if (( size_mb > limit_mb )); then
+     echo "${path} is too large (${size_mb}mb), nuking it."
+     rm -rf "${path}"
+   fi
+ }