use .xz as release asset instead for efficiency on the long run

Author: programmersd21

.github/workflows/build.yml

@@ -10,7 +10,7 @@ env:
   KBUILD_BUILD_HOST: "hyperion-ci"
 
 permissions:
-  contents: write  # required for releases
+  contents: write
   actions: write
 
 jobs:
@@ -20,62 +20,64 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Validate config
+      - name: Validate hyperion.config
         run: |
           python3 - << 'EOF'
           with open('hyperion.config') as f: lines = f.readlines()
-          errs = []
-          for i, l in enumerate(lines,1):
-            l=l.strip()
-            if not l or l.startswith('#'): continue
-            if '=' not in l: errs.append(f"Line {i}: No '=': {l}")
-            elif not l.startswith('CONFIG_'): errs.append(f"Line {i}: needs CONFIG_: {l}")
+          errs=[]
+          for i,l in enumerate(lines,1):
+              l=l.strip()
+              if not l or l.startswith('#'): continue
+              if '=' not in l: errs.append(f"Line {i}: No '=': {l}")
+              elif not l.startswith("CONFIG_"): errs.append(f"Line {i}: needs CONFIG_: {l}")
           if errs:
-            printf='%s\n'; exit(1)
-          print(f"Config OK")
+              print("\n".join(errs))
+              exit(1)
+          print("Config OK")
           EOF
 
   build-kernel:
-    name: Build Linux ${{ env.KERNEL_VERSION }}-Hyperion-${{ env.HYPERION_VERSION }}
+    name: Build Linux Hyperion Kernel
     runs-on: ubuntu-latest
     needs: validate-config
+    env:
+      KERNEL_VERSION: 6.19.6
+      HYPERION_VERSION: 0.1.0
+      KBUILD_BUILD_USER: Soumalya Das
+      KBUILD_BUILD_HOST: hyperion-ci
 
     steps:
       - uses: actions/checkout@v4
 
-      - name: Cache kernel source tarball
+      - name: Restore kernel tarball cache
         id: cache-tar
         uses: actions/cache@v4
         with:
           path: linux-${{ env.KERNEL_VERSION }}.tar.xz
           key: kernel-tar-${{ env.KERNEL_VERSION }}
 
-      - name: Cache extracted kernel source
-        id: cache-src
-        uses: actions/cache@v4
-        with:
-          path: linux-${{ env.KERNEL_VERSION }}
-          key: kernel-src-${{ env.KERNEL_VERSION }}
-
-      - name: Cache kernel build objects
+      - name: Restore build cache
         id: cache-build
         uses: actions/cache@v4
         with:
-          path: |
-            .cache-build/linux-${{ env.KERNEL_VERSION }}
-          key: kernel-build-${{ env.KERNEL_VERSION }}-${{ hashFiles('hyperion.config') }}
+          path: .cache-build/linux-${{ env.KERNEL_VERSION }}
+          key: kernel-build-${{ env.KERNEL_VERSION }}-hyperion-${{ hashFiles('hyperion.config') }}
           restore-keys: |
             kernel-build-${{ env.KERNEL_VERSION }}-
 
-      - name: Fetch kernel source
+      - name: Download kernel source if missing
         if: steps.cache-tar.outputs.cache-hit != 'true'
         run: wget -q https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-${{ env.KERNEL_VERSION }}.tar.xz
 
-      - name: Extract kernel source
-        if: steps.cache-src.outputs.cache-hit != 'true'
-        run: tar -xf linux-${{ env.KERNEL_VERSION }}.tar.xz
+      - name: Prepare build tree
+        run: |
+          mkdir -p .cache-build
+          if [ ! -d ".cache-build/linux-${KERNEL_VERSION}" ]; then
+            tar -xf linux-${KERNEL_VERSION}.tar.xz -C .cache-build
+            mv .cache-build/linux-${KERNEL_VERSION}* .cache-build/linux-${KERNEL_VERSION}
+          fi
 
-      - name: Install build deps
+      - name: Install build dependencies
         run: |
           sudo apt-get update -qq
           sudo apt-get install -y --no-install-recommends \
@@ -84,56 +86,56 @@ jobs:
 
       - name: Configure kernel
         run: |
-          mkdir -p .cache-build/linux-${{ env.KERNEL_VERSION }}
-          rsync -a linux-${{ env.KERNEL_VERSION }}/ .cache-build/linux-${{ env.KERNEL_VERSION }}/
-          cd .cache-build/linux-${{ env.KERNEL_VERSION }}
+          cd .cache-build/linux-${KERNEL_VERSION}
           cp ../../hyperion.config .config
           make olddefconfig \
-            LOCALVERSION="-Hyperion-${{ env.HYPERION_VERSION }}" \
-            KBUILD_BUILD_USER="${{ env.KBUILD_BUILD_USER }}" \
-            KBUILD_BUILD_HOST="${{ env.KBUILD_BUILD_HOST }}"
+            LOCALVERSION="-Hyperion-${HYPERION_VERSION}" \
+            KBUILD_BUILD_USER="${KBUILD_BUILD_USER}" \
+            KBUILD_BUILD_HOST="${KBUILD_BUILD_HOST}"
 
       - name: Apply patches
         run: |
-          cd .cache-build/linux-${{ env.KERNEL_VERSION }}
-          for p in ../patches/*.patch 2>/dev/null; do
+          cd .cache-build/linux-${KERNEL_VERSION}
+          for p in ../../patches/*.patch 2>/dev/null; do
             git apply "$p" || patch -p1 < "$p"
           done || true
 
-      - name: Build kernel
+      - name: Build kernel (incremental)
         run: |
-          cd .cache-build/linux-${{ env.KERNEL_VERSION }}
+          cd .cache-build/linux-${KERNEL_VERSION}
           make -j$(nproc) \
-            LOCALVERSION="-Hyperion-${{ env.HYPERION_VERSION }}" \
-            KBUILD_BUILD_USER="${{ env.KBUILD_BUILD_USER }}" \
-            KBUILD_BUILD_HOST="${{ env.KBUILD_BUILD_HOST }}" \
+            LOCALVERSION="-Hyperion-${HYPERION_VERSION}" \
+            KBUILD_BUILD_USER="${KBUILD_BUILD_USER}" \
+            KBUILD_BUILD_HOST="${KBUILD_BUILD_HOST}" \
             KBUILD_BUILD_TIMESTAMP="$(date -u '+%Y-%m-%d %H:%M:%S')" \
             2>&1 | tee build.log
 
-      - name: Verify image
+      - name: Verify build
         run: |
-          ls -lh .cache-build/linux-${{ env.KERNEL_VERSION }}/arch/x86/boot/bzImage
-          strings .cache-build/linux-${{ env.KERNEL_VERSION }}/arch/x86/boot/bzImage | grep "Hyperion"
+          ls -lh .cache-build/linux-${KERNEL_VERSION}/arch/x86/boot/bzImage
+          strings .cache-build/linux-${KERNEL_VERSION}/arch/x86/boot/bzImage | grep "Hyperion"
 
-      - name: Create/GH Release
+      - name: Package artifacts into .tar.xz
+        run: |
+          cd .cache-build/linux-${KERNEL_VERSION}
+          tar -cJf ../../Hyperion-Kernel-${KERNEL_VERSION}.tar.xz \
+            arch/x86/boot/bzImage \
+            Module.symvers \
+            build.log \
+            ../../hyperion.config
+
+      - name: Create GitHub Release
         uses: softprops/action-gh-release@v2
         with:
           tag_name: v${{ env.KERNEL_VERSION }}-Hyperion-${{ env.HYPERION_VERSION }}
-          name: Linux ${ env.KERNEL_VERSION }-Hyperion-${{ env.HYPERION_VERSION }}
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload bzImage
-        uses: softprops/action-gh-release@v2
-        with:
-          files: .cache-build/linux-${{ env.KERNEL_VERSION }}/arch/x86/boot/bzImage
+          name: Linux ${{ env.KERNEL_VERSION }}-Hyperion-${{ env.HYPERION_VERSION }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Upload Module.symvers
+      - name: Upload compressed kernel archive
         uses: softprops/action-gh-release@v2
         with:
-          files: .cache-build/linux-${{ env.KERNEL_VERSION }}/Module.symvers
+          files: Hyperion-Kernel-${{ env.KERNEL_VERSION }}.tar.xz
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}