build: add the option to generate compile_commands.json in vcbuild.bat

Refs: nodejs/gyp-next#238

Author: segevfiner

configure.py

@@ -2308,8 +2308,9 @@ def make_bin_override():
 
 if options.compile_commands_json:
   gyp_args += ['-f', 'compile_commands_json']
-  os.path.islink('./compile_commands.json') and os.unlink('./compile_commands.json')
-  os.symlink('./out/' + config['BUILDTYPE'] + '/compile_commands.json', './compile_commands.json')
+  if sys.platform != 'win32':
+    os.path.lexists('./compile_commands.json') and os.unlink('./compile_commands.json')
+    os.symlink('./out/' + config['BUILDTYPE'] + '/compile_commands.json', './compile_commands.json')
 
 # pass the leftover non-whitespace positional arguments to GYP
 gyp_args += [arg for arg in args if not str.isspace(arg)]
@@ -2319,4 +2320,7 @@ def make_bin_override():
 
 print_verbose("running: \n    " + " ".join(['python', 'tools/gyp_node.py'] + gyp_args))
 run_gyp(gyp_args)
+if options.compile_commands_json and sys.platform == 'win32':
+  os.path.isfile('./compile_commands.json') and os.unlink('./compile_commands.json')
+  shutil.copy2('./out/' + config['BUILDTYPE'] + '/compile_commands.json', './compile_commands.json')
 info('configure completed successfully')

vcbuild.bat

@@ -69,6 +69,7 @@ set openssl_no_asm=
 set no_shared_roheap=
 set doc=
 set extra_msbuild_args=
+set compile_commands=
 set exit_code=0
 
 :next-arg
@@ -145,6 +146,7 @@ if /i "%1"=="openssl-no-asm"   set openssl_no_asm=1&goto arg-ok
 if /i "%1"=="no-shared-roheap" set no_shared_roheap=1&goto arg-ok
 if /i "%1"=="doc"           set doc=1&goto arg-ok
 if /i "%1"=="binlog"        set extra_msbuild_args=/binaryLogger:out\%config%\node.binlog&goto arg-ok
+if /i "%1"=="compile-commands" set compile_commands=1&goto arg-ok
 
 echo Error: invalid command line option `%1`.
 exit /b 1
@@ -203,6 +205,7 @@ if defined debug_nghttp2    set configure_flags=%configure_flags% --debug-nghttp
 if defined openssl_no_asm   set configure_flags=%configure_flags% --openssl-no-asm
 if defined no_shared_roheap set configure_flags=%configure_flags% --disable-shared-readonly-heap
 if defined DEBUG_HELPER     set configure_flags=%configure_flags% --verbose
+if defined compile_commands set configure_flags=%configure_flags% -C
 
 if "%target_arch%"=="x86" (
   echo "32-bit Windows builds are not supported anymore."