space management and use codecov

Author: Prabhat1308

.github/workflows/build.yml

@@ -126,8 +126,10 @@ jobs:
           # Could you use this to fake the coverage report for your PR? Sure.
           # Will anyone be impressed by your amazing coverage? No
           # Maybe if codecov wasn't broken we wouldn't need to do this...
-          ./ci/ci-fuzz.sh
           bash <(curl -s https://codecov.io/bash) -f target/codecov.json -t "f421b687-4dc2-4387-ac3d-dc3b2528af57"
+      - name: Run fuzz coverage generation
+        run: |
+          ./ci/ci-fuzz.sh
 
   benchmark:
     runs-on: ubuntu-latest

ci/ci-fuzz.sh

@@ -2,17 +2,23 @@
 set -eox pipefail
 
 echo -e "\n\nGenerating fuzz coverage report"
-# In CI, store coverage in a specific directory for artifact collection
-COVERAGE_DIR="coverage-report"
+# In CI, store coverage in target directory for consistency with other artifacts
+COVERAGE_DIR="target/coverage-report"
 echo "Installing cargo-llvm-cov..."
 # Install cargo-llvm-cov if not already installed
 cargo install cargo-llvm-cov --locked
+
+echo "Cleaning up to save disk space..."
+rm -rf target/*
+echo "Disk cleanup completed"
+
+
 echo "Running fuzz coverage generation..."
 ./contrib/generate_fuzz_coverage.sh --output-dir "$COVERAGE_DIR"
 echo "Coverage generation completed. Checking results..."
-if [ -f "fuzz/$COVERAGE_DIR/html/index.html" ]; then
-    echo "✓ Coverage report successfully generated at fuzz/$COVERAGE_DIR/html/index.html"
-    ls -la "fuzz/$COVERAGE_DIR/html/"
-else
-    echo "✗ Coverage report not found at expected location"
+
+# Upload fuzz coverage to codecov if the file exists (CI only)
+if [ -f "target/fuzz-codecov.json" ]; then
+    echo "Uploading fuzz coverage to codecov..."
+    bash <(curl -s https://codecov.io/bash) -f "target/fuzz-codecov.json" -F fuzz -t "f421b687-4dc2-4387-ac3d-dc3b2528af57"
 fi

contrib/generate_fuzz_coverage.sh

@@ -52,24 +52,37 @@ fi
 mkdir -p "$OUTPUT_DIR"
 
 export RUSTFLAGS="--cfg=fuzzing --cfg=secp256k1_fuzz --cfg=hashes_fuzz"
-# ignore anything in fuzz directory since we don't want coverage of targets 
-cargo llvm-cov --html --ignore-filename-regex "fuzz/" --output-dir "$OUTPUT_DIR"
 
-# Check if coverage report was generated successfully
-# The report is generated in $OUTPUT_DIR/html/index.html when using --html --output-dir
-if [ ! -f "$OUTPUT_DIR/html/index.html" ]; then
-    echo "Error: Failed to generate coverage report at $OUTPUT_DIR/html/index.html"
-    # Debug: list what was actually created
-    echo "Contents of $OUTPUT_DIR:"
-    ls -la "$OUTPUT_DIR" || echo "Directory $OUTPUT_DIR does not exist"
-    if [ -d "$OUTPUT_DIR/html" ]; then
-        echo "Contents of $OUTPUT_DIR/html:"
-        ls -la "$OUTPUT_DIR/html"
+# dont run this command when running in CI
+if [ "$CI" != "true" ] && [ "$GITHUB_ACTIONS" != "true" ]; then
+    cargo llvm-cov --html --ignore-filename-regex "fuzz/" --output-dir "$OUTPUT_DIR"
+
+    # Check if coverage report was generated successfully
+    # The report is generated in $OUTPUT_DIR/html/index.html when using --html --output-dir
+    if [ ! -f "$OUTPUT_DIR/html/index.html" ]; then
+        echo "Error: Failed to generate coverage report at $OUTPUT_DIR/html/index.html"
+        echo "Contents of $OUTPUT_DIR:"
+        ls -la "$OUTPUT_DIR" || echo "Directory $OUTPUT_DIR does not exist"
+        if [ -d "$OUTPUT_DIR/html" ]; then
+            echo "Contents of $OUTPUT_DIR/html:"
+            ls -la "$OUTPUT_DIR/html"
+        fi
+        exit 1
+    fi
+    echo "Coverage report generated in $OUTPUT_DIR/html/index.html"
+fi
+
+# Generate codecov JSON format if running in CI environment
+if [ "$CI" = "true" ] || [ "$GITHUB_ACTIONS" = "true" ]; then
+    echo "CI environment detected, generating codecov JSON format..."
+    cargo llvm-cov --codecov --ignore-filename-regex "fuzz/" --output-path "$OUTPUT_DIR/fuzz-codecov.json"
+    
+    if [ -f "$OUTPUT_DIR/fuzz-codecov.json" ] && [[ "$OUTPUT_DIR" == *"target/"* ]]; then
+        TARGET_DIR="../target"
+        cp "$OUTPUT_DIR/fuzz-codecov.json" "$TARGET_DIR/fuzz-codecov.json"
+        echo "Fuzz codecov report copied to $TARGET_DIR/fuzz-codecov.json"
     fi
-    exit 1
 fi
 
-echo ""
-echo "Coverage report generated in $OUTPUT_DIR/html/index.html"