Updated foundry.toml and ci.yml for fuzz seeding approach

.github/workflows/ci.yml

@@ -31,10 +31,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+        with:
+          fetch-depth: 5
+          submodules: "recursive"
 
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@v1
 
+      # https://twitter.com/PaulRBerg/status/1611116650664796166
+      - name: Generate fuzz seed with 1 week TTL
+        run: >
+          echo "FOUNDRY_FUZZ_SEED=$(
+            echo $(($EPOCHSECONDS - $EPOCHSECONDS % 604800))
+          )" >> $GITHUB_ENV
+
       - name: Run tests
         run: forge test
 
@@ -46,6 +56,13 @@ jobs:
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@v1
 
+      # https://twitter.com/PaulRBerg/status/1611116650664796166
+      - name: Recycle the fuzz seed from the test run
+        run: >
+          echo "FOUNDRY_FUZZ_SEED=$(
+            echo $(($EPOCHSECONDS - $EPOCHSECONDS % 604800))
+          )" >> $GITHUB_ENV
+
       - name: Run coverage
         run: forge coverage --report summary --report lcov
 

foundry.toml

@@ -1,5 +1,6 @@
 [profile.default]
   evm_version = "paris"
+  fuzz = { seed = "1" }
   optimizer = true
   optimizer_runs = 10_000_000
   remappings = [
@@ -10,7 +11,7 @@
   verbosity = 3
 
 [profile.ci]
-  fuzz = { runs = 50 }
+  fuzz = { runs = 256 }
   invariant = { runs = 1000 }
 
 [profile.lite]