more cache tuning

.github/workflows/build-linux.yml

@@ -14,6 +14,9 @@ on:
       cache-id:
         type: string
         default: ''
+      cache-readonly:
+        type: boolean
+        default: false
       platform-files:
         type: boolean
         default: true
@@ -64,7 +67,7 @@ jobs:
           fetch-depth: ${{ !inputs.platform-files && 1 || 0 }}
       - name: Fetch ccache
         if: inputs.platform-files
-        uses: actions/cache@v3
+        uses: actions/cache/restore@v3
         with:
           path: ~/.cache/ccache
           key: linux-gcc-${{ inputs.gcc-ver }}-${{ inputs.cache-id }}-${{ github.sha }}
@@ -101,9 +104,15 @@ jobs:
       - name: Trim cache
         if: inputs.platform-files
         run: |
-          ccache --max-size 50M
+          ccache --max-size 40M
           ccache --cleanup
           ccache --show-stats --verbose
+      - name: Save ccache
+        if: inputs.platform-files && !inputs.cache-readonly
+        uses: actions/cache/save@v3
+        with:
+          path: ~/.cache/ccache
+          key: linux-gcc-${{ inputs.gcc-ver }}-${{ inputs.cache-id }}-${{ github.sha }}
       - name: Format artifact name
         if: inputs.append-date-and-hash
         id: artifactname

.github/workflows/build-windows.yml

@@ -14,6 +14,9 @@ on:
       cache-id:
         type: string
         default: ''
+      cache-readonly:
+        type: boolean
+        default: false
       common-files:
         type: boolean
         default: true
@@ -45,7 +48,7 @@ jobs:
           ssh-key: ${{ secrets.DFHACK_3RDPARTY_TOKEN }}
           path: depends/steam
       - name: Fetch ccache
-        uses: actions/cache@v3
+        uses: actions/cache/restore@v3
         with:
           path: build/win64-cross/ccache
           key: win-msvc-${{ inputs.cache-id }}-${{ github.sha }}
@@ -60,9 +63,15 @@ jobs:
           bash -x build-win64-from-linux.sh
       - name: Trim cache
         run: |
-          ccache -d win64-cross/ccache --max-size 50M
+          cd build
+          ccache -d win64-cross/ccache --max-size 200M
           ccache -d win64-cross/ccache --cleanup
           ccache -d win64-cross/ccache --show-stats --verbose
+      - name: Save ccache
+        uses: actions/cache/save@v3
+        with:
+          path: build/win64-cross/ccache
+          key: win-msvc-${{ inputs.cache-id }}-${{ github.sha }}
       - name: Format artifact name
         if: inputs.append-date-and-hash
         id: artifactname

.github/workflows/build.yml

@@ -89,7 +89,7 @@ jobs:
     with:
       artifact-name: dfhack-win64-build
       append-date-and-hash: true
-      cache-id: msvc
+      cache-id: release
     secrets: inherit
 
   docs:

.github/workflows/steam.yml

@@ -36,7 +36,8 @@ jobs:
     with:
       artifact-name: linux64-depot
       ref: ${{ github.event.inputs.ref }}
-      cache-id: depot
+      cache-id: release
+      cache-readonly: true
       common-files: false
       stonesense: true
       gcc-ver: "10"
@@ -48,7 +49,8 @@ jobs:
     with:
       artifact-name: win64-depot
       ref: ${{ github.event.inputs.ref }}
-      cache-id: msvc
+      cache-id: release
+      cache-readonly: true
       common-files: false
       launchdf: true
     secrets: inherit