!167 #I3YIUO：增加ccache支持

Merge pull request !167 from yangming_ha/master

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/build/build_process.py

@@ -32,7 +32,7 @@ from hb.common.device import Device
 from hb.common.product import Product
 from hb.build.fs_process import Packer
 from hb.build.patch_process import Patch
-
+from distutils.spawn import find_executable
 
 class Build():
     def __init__(self, component=None):
@@ -117,6 +117,11 @@ class Build():
     def build(self, full_compile, patch=False, ninja=True, cmd_args=None):
         cmd_list = self.get_cmd(full_compile, patch, ninja)
 
+        # 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)
+
         if cmd_args is None:
             cmd_args = defaultdict(list)
         for exec_cmd in cmd_list:

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 = ""