ci: add caching, separate windows/linux jobs

.github/workflows/miqt.yml

@@ -1,4 +1,4 @@
-name: miqt.yml
+name: CI
 
 on:
   push:
@@ -7,7 +7,7 @@ on:
     branches: [ "**" ]
 
 jobs:
-  build:
+  miqt_linux64:
     runs-on: ubuntu-22.04
     
     steps:
@@ -17,17 +17,42 @@ jobs:
     - name: Linux64 docker build
       run: cd docker && docker build -t miqt/linux64:latest -f linux64-go1.19-qt5.15-dynamic.Dockerfile .
     
+    - name: Cache clang ASTs
+      uses: actions/cache@v4
+      with:
+        path: cmd/genbindings/cachedir
+        key: linux64-clang-cache
+        
+    - name: Cache GOCACHE
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/go-build
+        key: linux64-gocache
+        
     - name: Rebuild binding source
-      run: docker run -v $PWD:/src -w /src miqt/linux64:latest /bin/bash -c 'cd cmd/genbindings && go build && ./genbindings'
+      run: docker run -v ~/.cache/go-build:/root/.cache/go-build -v $PWD:/src -w /src miqt/linux64:latest /bin/bash -c 'cd cmd/genbindings && go build && ./genbindings'
     
     - name: Assert no changes
       run: git update-index --really-refresh && git diff-index HEAD
     
     - name: Linux64 bindings compile
-      run: docker run -v $PWD:/src -w /src miqt/linux64:latest /bin/bash -c 'cd qt && go build'
+      run: docker run -v ~/.cache/go-build:/root/.cache/go-build -v $PWD:/src -w /src miqt/linux64:latest /bin/bash -c 'cd qt && go build'
+    
+  miqt_win64:
+    runs-on: ubuntu-22.04
+    
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      
+    - name: Cache GOCACHE
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/go-build
+        key: win64-gocache
     
     - name: Win64 docker build
       run: cd docker && docker build -t miqt/win64:latest -f win64-cross-go1.23-qt5.15-static.Dockerfile .
     
     - name: Win64 bindings compile
-      run: docker run -v $PWD:/src -w /src miqt/win64:latest /bin/bash -c 'cd qt && go build'
+      run: docker run -v ~/.cache/go-build:/root/.cache/go-build -v $PWD:/src -w /src miqt/win64:latest /bin/bash -c 'cd qt && go build'