ci: add sccache [part 1] (#7704)

* ci: add sccache

* sccache no daemon, no incremental

* debug log sccache

* test: bump honkers

* don't run sccache in foreground

* change cache key, add cache config file

* set config somewhere else

* funny

* oops

* hack: use upstream cache action

* use separate script files

* port over upstream cache scripts properly

* don't copy sccache config

* cursed caching stuff

* ensure cache is put in the right place

* try to assert stuff

* use upstream sccache for now

* Revert back to upstream build of sccache

turns out Fedora's builds don't even have GHA support

* Revert to default logging

* Revert "test: bump honkers"

This reverts commit 3c711c18ee.

.github/workflows/json-build.yml

@@ -18,6 +18,11 @@ on:
         required: false
         type: string
         default: ""
+      bust_cache:
+        description: "Whether to bust the cache"
+        required: false
+        type: boolean
+        default: false
   workflow_dispatch:
     inputs:
       packages:
@@ -30,6 +35,12 @@ on:
         type: boolean
         default: true
 
+env:
+  RUSTC_WRAPPER: sccache
+  # SCCACHE_NO_DAEMON: "1"
+  # Disable incremental compilation so sccache works better
+  CARGO_INCREMENTAL: "false"
+
 jobs:
   build:
     strategy:
@@ -64,6 +75,19 @@ jobs:
           dir=$(dirname ${{ matrix.pkg.pkg }})
           dnf5 builddep -y ${dir}/*.spec
 
+
+      - name: Run sccache-cache
+        uses: mozilla-actions/sccache-action@v0.0.9
+
+      - name: Configure sccache
+        run: |
+          set -euo pipefail
+          echo "SCCACHE_GHA_ENABLED=true" >> $GITHUB_ENV
+          if [ "${{ inputs.bust_cache }}" = "true" ]; then
+            echo "SCCACHE_BUST_CACHE=true" >> $GITHUB_ENV
+          fi
+
+
       - name: Build with Andaman
         run: anda build -D "vendor Terra" ${{ matrix.pkg.pkg }} -c terra-${{ matrix.version }}-${{ matrix.pkg.arch }} ${{ !matrix.pkg.labels.mock == '1' && '-rrpmbuild' || '' }}
 
@@ -105,4 +129,4 @@ jobs:
         run: ./.github/workflows/mg.sh true "${{matrix.pkg.pkg}}" "${{matrix.version}}" "${{matrix.pkg.arch}}" "${{github.run_id}}" "${{secrets.MADOGUCHI_JWT}}" "$GITHUB_SHA"
       - name: Notify Madoguchi (Failure)
         if: inputs.publish && (cancelled() || failure())
-        run: ./.github/workflows/mg.sh false "${{matrix.pkg.pkg}}" "${{matrix.version}}" "${{matrix.pkg.arch}}" "${{github.run_id}}" "${{secrets.MADOGUCHI_JWT}}" "$GITHUB_SHA"
+        run: ./.github/workflows/mg.sh false "${{matrix.pkg.pkg}}" "${{matrix.version}}" "${{matrix.pkg.arch}}" "${{github.run_id}}" "${{secrets.MADOGUCHI_JWT}}" "$GITHUB_SHA"