#I3YIUO: support ccache

Signed-off-by: Nyangming_ha <yangming_ha@163.com>

config/BUILDCONFIG.gn

@@ -50,13 +50,20 @@ if (host_os == "win") {
   toolchain_cmd_suffix = ".exe"
 }
 
+# enable ccache if ccache installed.
+if (ohos_build_enable_ccache) {
+  compile_prefix = "ccache "
+} else {
+  compile_prefix = ""
+}
+
 # Set current toolchain with to board configuration.
 if (board_toolchain != "" && use_board_toolchain) {
   ohos_build_compiler = board_toolchain_type
   if (board_toolchain_path != "") {
-    compile_prefix = "${board_toolchain_path}/${board_toolchain_prefix}"
+    compile_prefix += "${board_toolchain_path}/${board_toolchain_prefix}"
   } else {
-    compile_prefix = "${board_toolchain_prefix}"
+    compile_prefix += "${board_toolchain_prefix}"
   }
   set_default_toolchain("//build/lite/toolchain:${board_toolchain}")
   if (board_toolchain_type == "gcc") {
@@ -82,7 +89,7 @@ if (board_toolchain != "" && use_board_toolchain) {
   # OHOS default toolchain
   ohos_build_compiler = "clang"
   ohos_clang_toolchain_dir = rebase_path("${ohos_build_compiler_dir}/bin")
-  compile_prefix = rebase_path("${ohos_build_compiler_dir}/bin")
+  compile_prefix += rebase_path("${ohos_build_compiler_dir}/bin")
   ohos_current_cc_command = "${compile_prefix}/clang$toolchain_cmd_suffix"
   ohos_current_cxx_command = "${compile_prefix}/clang++$toolchain_cmd_suffix"
   ohos_current_ar_command = "${compile_prefix}/llvm-ar$toolchain_cmd_suffix"

hb/__init__.py

@@ -42,4 +42,4 @@ CONFIG_STRUCT = {
     "device_path": None,
     "patch_cache": None
 }
-VERSION = '0.4.1'
+VERSION = '0.4.2'

hb/build/build.py

@@ -21,6 +21,7 @@ from collections import defaultdict
 from hb.build.build_process import Build
 from hb.set.set import set_product
 from hb.common.utils import get_current_time
+from distutils.spawn import find_executable
 
 
 def add_options(parser):
@@ -98,4 +99,9 @@ def exec_command(args):
                             'true',
                             quota=False)
 
+    # enable ccache if it installed.
+    ccache_path = find_executable('ccache')
+    if ccache_path is not None:
+        build.register_args('ohos_build_enable_ccache', 'true',  quota=False)
+
     return build.build(args.full, patch=args.patch, cmd_args=cmd_args)

ohos_var.gni

@@ -39,6 +39,9 @@ declare_args() {
   ohos_kernel_type = ""
   use_board_toolchain = true
 
+  # hb set it to true if ccache installed.
+  ohos_build_enable_ccache = false
+
   # Current toolchain cc command. E.g. "/data/user1/riscv32/bin/riscv32-unknown-elf-gcc".
   ohos_current_cc_command = ""
   ohos_current_cxx_command = ""