Migrate to new new matrix based builder workflow

.ci/build.sh

@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+: "${TARGET:?TARGET env var is required}"
+: "${TAG_NAME:?TAG_NAME env var is required}"
+
+echo "▶ Building target='$TARGET' tag='$TAG_NAME'"
+
+BUILD_CDYLIB=true
+
+# ── Per-target naming conventions ────────────────────────────────────────────
+case "$TARGET" in
+  *windows-msvc*)
+    LIB_PREFIX=""
+    LIB_EXT=".dll"
+    STATIC_LIB_PREFIX=""
+    STATIC_LIB_EXT=".lib"
+    ;;
+  *windows-gnu*)
+    LIB_PREFIX=""
+    LIB_EXT=".dll"
+    STATIC_LIB_PREFIX="lib"
+    STATIC_LIB_EXT=".a"
+    ;;
+  *apple*)
+    LIB_PREFIX="lib"
+    LIB_EXT=".dylib"
+    STATIC_LIB_PREFIX="lib"
+    STATIC_LIB_EXT=".a"
+    ;;
+  *musl*)
+    BUILD_CDYLIB=false
+    LIB_PREFIX="lib"
+    LIB_EXT=".so"
+    STATIC_LIB_PREFIX="lib"
+    STATIC_LIB_EXT=".a"
+    ;;
+  *)
+    LIB_PREFIX="lib"
+    LIB_EXT=".so"
+    STATIC_LIB_PREFIX="lib"
+    STATIC_LIB_EXT=".a"
+    ;;
+esac
+
+# ── Patch Cargo.toml ──────────────────────────────────────────────────────────
+CRATE_TYPES="\"rlib\", \"staticlib\""
+if [ "$BUILD_CDYLIB" = true ]; then
+  CRATE_TYPES="\"rlib\", \"cdylib\", \"staticlib\""
+fi
+
+# macOS (Darwin) requires an empty string for the -i flag
+if [[ "$(uname)" == "Darwin" ]]; then
+  sed -i '' "s/crate-type = \[\"rlib\"\]/crate-type = \[$CRATE_TYPES\]/" Cargo.toml
+else
+  # Linux and Windows (Git Bash)
+  sed -i "s/crate-type = \[\"rlib\"\]/crate-type = \[$CRATE_TYPES\]/" Cargo.toml
+fi
+
+# ── Build ─────────────────────────────────────────────────────────────────────
+# Use native cargo on macOS and Windows runners (where SDKs are present).
+# Use cargo-zigbuild on Linux runners for cross-compilation.
+if [[ "$(uname)" == "Darwin" ]] || [[ "$(uname)" == *"MINGW"* ]] || [[ "$(uname)" == *"MSYS"* ]]; then
+  cargo build --release --target "$TARGET"
+else
+  cargo zigbuild --release --target "$TARGET"
+fi
+
+# ── Collect into staging ─────────────────────────────────────────────────────
+STAGING="staging/${TARGET}"
+mkdir -p "$STAGING" artifacts
+
+if [ "$BUILD_CDYLIB" = true ]; then
+  cp "target/${TARGET}/release/${LIB_PREFIX}spf${LIB_EXT}" "$STAGING/"
+fi
+cp "target/${TARGET}/release/${STATIC_LIB_PREFIX}spf${STATIC_LIB_EXT}" "$STAGING/"
+cp spf.h "$STAGING/"
+cp LICENSE-APACHE "$STAGING/"
+
+# ── Package ───────────────────────────────────────────────────────────────────
+TARBALL="artifacts/spf.${TAG_NAME}.${TARGET}.tar.gz"
+tar -czf "$TARBALL" -C staging "${TARGET}"
+rm -rf staging
+
+echo "✅ Artifact ready: $TARBALL"