pull in changes from upstream

.github/workflows/ci.yml

@@ -37,3 +37,12 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - run: cargo check -p shuru-cli
+
+  linux-test:
+    name: Linux tests
+    runs-on: ubuntu-24.04-arm
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo test -p shuru-proto -p shuru-linux -p shuru-node -p shuru-vm -p shuru-guest

.github/workflows/publish-crates.yml

@@ -28,7 +28,7 @@ jobs:
               echo "Published $crate"
               echo "Waiting for crates.io to index..."
               sleep 30
-            elif echo "$output" | grep -q "already exists"; then
+            elif echo "$output" | grep -qE "already (exists|uploaded)"; then
               echo "$crate already published, skipping"
             else
               echo "$output" >&2
@@ -60,7 +60,7 @@ jobs:
               echo "Published $crate"
               echo "Waiting for crates.io to index..."
               sleep 30
-            elif echo "$output" | grep -q "already exists"; then
+            elif echo "$output" | grep -qE "already (exists|uploaded)"; then
               echo "$crate already published, skipping"
             else
               echo "$output" >&2
@@ -91,7 +91,7 @@ jobs:
               echo "Published $crate"
               echo "Waiting for crates.io to index..."
               sleep 30
-            elif echo "$output" | grep -q "already exists"; then
+            elif echo "$output" | grep -qE "already (exists|uploaded)"; then
               echo "$crate already published, skipping"
             else
               echo "$output" >&2

.github/workflows/release.yml

@@ -42,7 +42,7 @@ jobs:
           DATA_DIR="${HOME}/.local/share/shuru"
           tar czf "shuru-os-${VERSION}-aarch64.tar.gz" \
             -C "${DATA_DIR}" \
-            Image initramfs.cpio.gz rootfs.ext4
+            Image initramfs.cpio rootfs.ext4
 
       - name: Upload artifact
         uses: actions/upload-artifact@v4
@@ -127,12 +127,16 @@ jobs:
         uses: softprops/action-gh-release@v2
         with:
           generate_release_notes: true
+          # A tag with a hyphen (v0.8.0-rc.1) is a rehearsal: published as a
+          # pre-release, never marked latest, never pushed to Homebrew.
+          prerelease: ${{ contains(github.ref_name, '-') }}
           files: artifacts/*
 
   update-homebrew:
     name: Update Homebrew tap
     runs-on: ubuntu-latest
     needs: release
+    if: ${{ !contains(github.ref_name, '-') }}
     steps:
       - uses: actions/checkout@v4
         with: