Get rid of sccache

Author: Porges

.github/workflows/ci.yml

@@ -16,8 +16,6 @@ concurrency:
 
 env:
   CARGO_TERM_COLOR: always
-  SCCACHE_DIR: ${{github.workspace}}/sccache/
-  SCCACHE_CACHE_SIZE: 1G
   ACTIONS_CACHE_KEY_DATE: 2023-06-19
   CI: true
 
@@ -89,13 +87,6 @@ jobs:
         if: steps.rust-build-cache.outputs.cache-hit != 'true' && steps.cache-agent-artifacts.outputs.cache-hit != 'true'
         shell: bash
         run: src/ci/rust-prereqs.sh
-      - name: Rust Sccache
-        if: steps.cache-agent-artifacts.outputs.cache-hit != 'true'
-        uses: actions/cache@v3
-        with:
-          path: sccache
-          key: agent-sccache|${{ join(matrix.os, ':') }}|${{steps.rust-version.outputs.RUST_VERSION}}|${{ env.ACTIONS_CACHE_KEY_DATE }}|${{ hashFiles('src/agent/Cargo.lock') }}
-          restore-keys: agent-sccache|${{ join(matrix.os, ':') }}|${{steps.rust-version.outputs.RUST_VERSION}}|${{ env.ACTIONS_CACHE_KEY_DATE }}|
       - run: src/ci/agent.sh
         if: steps.cache-agent-artifacts.outputs.cache-hit != 'true'
         shell: bash
@@ -243,14 +234,6 @@ jobs:
         if: steps.rust-build-cache.outputs.cache-hit != 'true'
         shell: bash
         run: src/ci/rust-prereqs.sh
-      - name: Rust Compile Cache
-        uses: actions/cache@v3
-        with:
-          path: sccache
-          key: proxy-sccache|${{ runner.os }}-${{ hashFiles('src/proxy-manager/Cargo.lock') }}-${{ env.ACTIONS_CACHE_KEY_DATE }}
-          restore-keys: |
-            proxy-sccache|${{ runner.os }}-${{ hashFiles('src/proxy-manager/Cargo.lock') }}-
-            proxy-sccache|${{ runner.os }}-
       - run: src/ci/proxy.sh
       - uses: actions/upload-artifact@v3
         with:

src/ci/agent.sh

@@ -11,25 +11,6 @@ exists() {
     [ -e "$1" ]
 }
 
-SCCACHE=$(which sccache || echo '')
-if [ -n "$SCCACHE" ]; then
-    # only set RUSTC_WRAPPER if sccache exists
-    export RUSTC_WRAPPER=$SCCACHE
-    # incremental interferes with (disables) sccache
-    export CARGO_INCREMENTAL=0
-else
-    # only set CARGO_INCREMENTAL on non-release builds
-    #
-    # This speeds up build time, but makes the resulting binaries slightly slower.
-    # https://doc.rust-lang.org/cargo/reference/profiles.html?highlight=incremental#incremental
-    if [ "${GITHUB_REF}" != "" ]; then
-        TAG_VERSION=${GITHUB_REF#refs/tags/}
-        if [ ${TAG_VERSION} == ${GITHUB_REF} ]; then
-            export CARGO_INCREMENTAL=1
-        fi
-    fi
-fi
-
 platform=$(uname --kernel-name --machine)
 platform=${platform// /-} # replace spaces with dashes
 rel_output_dir="artifacts/agent-$platform"
@@ -45,11 +26,6 @@ cargo clippy --version
 cargo fmt --version
 cargo license --version
 
-# unless we're doing incremental builds, start clean during CI
-if [ X${CARGO_INCREMENTAL} == X ]; then
-    cargo clean
-fi
-
 cargo fmt -- --check
 
 cargo deny -L error check
@@ -69,10 +45,6 @@ cargo llvm-cov nextest --all-targets --locked --workspace --lcov --output-path "
 # TODO: once Salvo is integrated, this can get deleted
 cargo build --release --locked --manifest-path ./onefuzz-telemetry/Cargo.toml --all-features
 
-if [ -n "$SCCACHE" ]; then
-    sccache --show-stats
-fi
-
 echo "Checking dependencies of binaries"
 
 "$script_dir/check-dependencies.sh"

src/ci/proxy.sh

@@ -5,8 +5,6 @@
 
 set -ex
 
-#export RUSTC_WRAPPER=$(which sccache)
-
 mkdir -p artifacts/proxy
 
 cd src/proxy-manager

src/ci/rust-prereqs.sh

@@ -5,7 +5,4 @@
 
 set -ex
 
-cargo install --locked sccache cargo-license@0.4.2 cargo-llvm-cov cargo-deny cargo-insta cargo-nextest
-
-# sccache --start-server
-# export RUSTC_WRAPPER=$(which sccache)
+cargo install --locked cargo-license@0.4.2 cargo-llvm-cov cargo-deny cargo-insta cargo-nextest