build: reduce chance of unneeded rebuild

Run `node_js2c` and `mkssldef` as actions and not as targets makes sure
they are run only once, just before processing the rest of `node_lib`.
This helps `make` based dependency change detection be more accurate.

Add comments with tagrget names for readability.

Use `process_outputs_as_sources` for automatic inclution of outputs.

PR-URL: #23156
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

Author: refack

Makefile

@@ -74,9 +74,9 @@ available-node = \
 # BUILDTYPE=Debug builds both release and debug builds. If you want to compile
 # just the debug build, run `make -C out BUILDTYPE=Debug` instead.
 ifeq ($(BUILDTYPE),Release)
-all: out/Makefile $(NODE_EXE) ## Default target, builds node in out/Release/node.
+all: $(NODE_EXE) ## Default target, builds node in out/Release/node.
 else
-all: out/Makefile $(NODE_EXE) $(NODE_G_EXE)
+all: $(NODE_EXE) $(NODE_G_EXE)
 endif
 
 .PHONY: help

common.gypi

@@ -22,6 +22,8 @@
     'node_tag%': '',
     'uv_library%': 'static_library',
 
+    'clang%': 0,
+    
     'openssl_fips%': '',
 
     # Default to -O0 for debug builds.
@@ -91,8 +93,6 @@
       }],
       ['OS=="mac"', {
         'clang%': 1,
-      }, {
-        'clang%': 0,
       }],
     ],
   },

node.gyp

@@ -288,7 +288,7 @@
                   'sources': [
                     'tools/msvs/genfiles/node_etw_provider.rc'
                   ],
-                }]
+                }],
               ],
             }],
           ],
@@ -305,16 +305,11 @@
           'product_name': '<(node_core_target_name)-win',
         }],
       ],
-    },
+    }, # node_core_target_name
     {
       'target_name': '<(node_lib_target_name)',
       'type': '<(node_intermediate_lib_type)',
       'product_name': '<(node_core_target_name)',
-
-      'dependencies': [
-        'node_js2c#host',
-      ],
-
       'includes': [
         'node.gypi'
       ],
@@ -460,7 +455,6 @@
         '<@(library_files)',
         # node.gyp is added to the project by default.
         'common.gypi',
-        '<(SHARED_INTERMEDIATE_DIR)/node_javascript.cc',
       ],
 
       'variables': {
@@ -618,15 +612,9 @@
             'src/tls_wrap.h'
           ],
         }],
-      ],
-    },
-    {
-      'target_name': 'mkssldef',
-      'type': 'none',
-      # TODO(bnoordhuis) Make all platforms export the same list of symbols.
-      # Teach mkssldef.py to generate linker maps that UNIX linkers understand.
-      'conditions': [
         [ 'use_openssl_def==1', {
+          # TODO(bnoordhuis) Make all platforms export the same list of symbols.
+          # Teach mkssldef.py to generate linker maps that UNIX linkers understand.
           'variables': {
             'mkssldef_flags': [
               # Categories to export.
@@ -656,6 +644,7 @@
                 'deps/openssl/openssl/util/libssl.num',
               ],
               'outputs': ['<(SHARED_INTERMEDIATE_DIR)/openssl.def'],
+              'process_outputs_as_sources': 1,
               'action': [
                 'python',
                 'tools/mkssldef.py',
@@ -668,39 +657,12 @@
           ],
         }],
       ],
-    },
-    # generate ETW header and resource files
-    {
-      'target_name': 'node_etw',
-      'type': 'none',
-      'conditions': [
-        [ 'node_use_etw=="true"', {
-          'actions': [
-            {
-              'action_name': 'node_etw',
-              'inputs': [ 'src/res/node_etw_provider.man' ],
-              'outputs': [
-                'tools/msvs/genfiles/node_etw_provider.rc',
-                'tools/msvs/genfiles/node_etw_provider.h',
-                'tools/msvs/genfiles/node_etw_providerTEMP.BIN',
-              ],
-              'action': [ 'mc <@(_inputs) -h tools/msvs/genfiles -r tools/msvs/genfiles' ]
-            }
-          ]
-        } ]
-      ]
-    },
-    {
-      'target_name': 'node_js2c',
-      'type': 'none',
-      'toolsets': ['host'],
       'actions': [
         {
           'action_name': 'node_js2c',
           'process_outputs_as_sources': 1,
           'inputs': [
             '<@(library_files)',
-            './config.gypi',
             'tools/check_macros.py'
           ],
           'outputs': [
@@ -718,14 +680,34 @@
             }]
           ],
           'action': [
-            'python',
-            'tools/js2c.py',
+            'python', 'tools/js2c.py',
             '<@(_outputs)',
-            '<@(_inputs)',
+            '<@(_inputs)', 'config.gypi',
           ],
         },
       ],
-    }, # end node_js2c
+    }, # node_lib_target_name
+    {
+       # generate ETW header and resource files
+      'target_name': 'node_etw',
+      'type': 'none',
+      'conditions': [
+        [ 'node_use_etw=="true"', {
+          'actions': [
+            {
+              'action_name': 'node_etw',
+              'inputs': [ 'src/res/node_etw_provider.man' ],
+              'outputs': [
+                'tools/msvs/genfiles/node_etw_provider.rc',
+                'tools/msvs/genfiles/node_etw_provider.h',
+                'tools/msvs/genfiles/node_etw_providerTEMP.BIN',
+              ],
+              'action': [ 'mc <@(_inputs) -h tools/msvs/genfiles -r tools/msvs/genfiles' ]
+            }
+          ]
+        } ]
+      ]
+    }, # node_etw
     {
       'target_name': 'node_dtrace_header',
       'type': 'none',
@@ -753,7 +735,7 @@
           ]
         } ],
       ]
-    },
+    }, # node_dtrace_header
     {
       'target_name': 'node_dtrace_provider',
       'type': 'none',
@@ -788,7 +770,7 @@
           ],
         }],
       ]
-    },
+    }, # node_dtrace_provider
     {
       'target_name': 'node_dtrace_ustack',
       'type': 'none',
@@ -836,7 +818,7 @@
           ]
         } ],
       ]
-    },
+    }, # node_dtrace_ustack
     {
       'target_name': 'specialize_node_d',
       'type': 'none',
@@ -862,7 +844,7 @@
           ],
         } ],
       ]
-    },
+    }, # specialize_node_d
     {
       # When using shared lib to build executable in Windows, in order to avoid
       # filename collision, the executable name is node-win.exe. Need to rename
@@ -890,7 +872,7 @@
           ],
         } ],
       ]
-    },
+    }, # rename_node_bin_win
     {
       'target_name': 'cctest',
       'type': 'executable',
@@ -899,7 +881,6 @@
         '<(node_lib_target_name)',
         'rename_node_bin_win',
         'deps/gtest/gtest.gyp:gtest',
-        'node_js2c#host',
         'node_dtrace_header',
         'node_dtrace_ustack',
         'node_dtrace_provider',
@@ -957,7 +938,7 @@
           'type': 'none',
         }],
       ],
-    }
+    }, # cctest
   ], # end targets
 
   'conditions': [

node.gypi

@@ -24,6 +24,16 @@
     },
     'force_load%': '<(force_load)',
   },
+  # Putting these explicitly here so not to be dependant on common.gypi.
+  'cflags': [ '-Wall', '-Wextra', '-Wno-unused-parameter', ],
+  'xcode_settings': {
+    'WARNING_CFLAGS': [
+      '-Wall',
+      '-Wendif-labels',
+      '-W',
+      '-Wno-unused-parameter',
+    ],
+  },
   'conditions': [
     [ 'node_shared=="false"', {
       'msvs_settings': {