win32*.sh: use ninja instead of make

In order to avoid overcomplicating the ceph cmake files, we're
picking make targets individually.

This is quite inefficient. Ninja can improve the build concurrency,
reducing the build duration by almost 50%.

Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>

win32_build.sh

@@ -20,7 +20,9 @@ SKIP_CMAKE=${SKIP_CMAKE:-}
 SKIP_DLL_COPY=${SKIP_DLL_COPY:-}
 SKIP_TESTS=${SKIP_TESTS:-}
 SKIP_BINDIR_CLEAN=${SKIP_BINDIR_CLEAN:-}
-NUM_WORKERS=${NUM_WORKERS:-$num_vcpus}
+# Use Ninja's default, it might be useful when having few cores.
+NUM_WORKERS_DEFAULT=$(( $num_vcpus + 2 ))
+NUM_WORKERS=${NUM_WORKERS:-$NUM_WORKERS_DEFAULT}
 DEV_BUILD=${DEV_BUILD:-}
 # Unless SKIP_ZIP is set, we're preparing an archive that contains the Ceph
 # binaries, debug symbols as well as the required DLLs.
@@ -77,7 +79,7 @@ dbgSymbolDir="$strippedBinDir/${dbgDirname}"
 depsSrcDir="$DEPS_DIR/src"
 depsToolsetDir="$DEPS_DIR/mingw"
 
-generatorUsed="Unix Makefiles"
+cmakeGenerator="Ninja"
 lz4Dir="${depsToolsetDir}/lz4"
 sslDir="${depsToolsetDir}/openssl"
 curlDir="${depsToolsetDir}/curl"
@@ -168,7 +170,7 @@ cmake -D CMAKE_PREFIX_PATH=$depsDirs \
       -D WITH_CEPH_DEBUG_MUTEX=$WITH_CEPH_DEBUG_MUTEX \
       -D DOKAN_INCLUDE_DIRS="$dokanSrcDir/dokan" \
       -D DOKAN_LIBRARIES="$dokanLibDir/libdokan.a" \
-      -G "$generatorUsed" \
+      -G "$cmakeGenerator" \
       $CEPH_DIR  2>&1 | tee "${BUILD_DIR}/cmake.log"
 fi # [[ -z $SKIP_CMAKE ]]
 
@@ -176,26 +178,17 @@ if [[ -z $SKIP_BUILD ]]; then
     echo "Building using $NUM_WORKERS workers. Log: ${BUILD_DIR}/build.log"
     echo "" > "${BUILD_DIR}/build.log"
 
-    # We're going to use an associative array having subdirectories as keys
-    # and targets as values.
-    declare -A make_targets
-    make_targets["src/tools"]="ceph-conf rados"
-    make_targets["src/tools/immutable_object_cache"]="all"
-    make_targets["src/tools/rbd"]="all"
-    make_targets["src/tools/rbd_wnbd"]="all"
-    make_targets["src/compressor"]="all"
-    make_targets["src"]="cephfs"
-    make_targets["src/dokan"]="all"
-
+    cd $BUILD_DIR
+    ninja_targets="rados rbd rbd-wnbd "
+    ninja_targets+=" ceph-conf ceph-immutable-object-cache"
+    ninja_targets+=" cephfs ceph-dokan"
+    # TODO: do we actually need the ceph compression libs?
+    ninja_targets+=" compressor ceph_lz4 ceph_snappy ceph_zlib ceph_zstd"
     if [[ -z $SKIP_TESTS ]]; then
-      make_targets["src/tools"]+=" ceph_radosacl ceph_scratchtool"
-      make_targets["src/test"]="all"
+      ninja_targets+=" test ceph_radosacl ceph_scratchtool"
     fi
 
-    for target_subdir in "${!make_targets[@]}"; do
-      echo "Building $target_subdir: ${make_targets[$target_subdir]}" | tee -a "${BUILD_DIR}/build.log"
-      make -j $NUM_WORKERS -C $target_subdir ${make_targets[$target_subdir]} 2>&1 | tee -a "${BUILD_DIR}/build.log"
-    done
+    ninja -v $ninja_targets 2>&1 | tee "${BUILD_DIR}/build.log"
 fi
 
 if [[ -z $SKIP_DLL_COPY ]]; then