Add presubmit=no and werror=no flags to Makefile

Review URL: http://codereview.chromium.org/8159015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9539 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Makefile

@@ -32,6 +32,7 @@ LINK ?= "g++"
 OUTDIR ?= out
 TESTJOBS ?= -j16
 GYPFLAGS ?=
+TESTFLAGS ?=
 
 # Special build flags. Use them like this: "make library=shared"
 
@@ -76,6 +77,14 @@ endif
 ifdef soname_version
   GYPFLAGS += -Dsoname_version=$(soname_version)
 endif
+# werror=no
+ifeq ($(werror), no)
+  GYPFLAGS += -Dwerror=''
+endif
+# presubmit=no
+ifeq ($(presubmit), no)
+  TESTFLAGS += --no-presubmit
+endif
 
 # ----------------- available targets: --------------------
 # - "dependencies": pulls in external dependencies (currently: GYP)
@@ -136,23 +145,24 @@ native: $(OUTDIR)/Makefile-native
 
 # Test targets.
 check: all
-	@tools/test-wrapper-gypbuild.py $(TESTJOBS) --outdir=$(OUTDIR)
+	@tools/test-wrapper-gypbuild.py $(TESTJOBS) --outdir=$(OUTDIR) \
+	    $(TESTFLAGS)
 
 $(addsuffix .check,$(MODES)): $$(basename $$@)
 	@tools/test-wrapper-gypbuild.py $(TESTJOBS) --outdir=$(OUTDIR) \
-	    --mode=$(basename $@)
+	    --mode=$(basename $@) $(TESTFLAGS)
 
 $(addsuffix .check,$(ARCHES)): $$(basename $$@)
 	@tools/test-wrapper-gypbuild.py $(TESTJOBS) --outdir=$(OUTDIR) \
-	    --arch=$(basename $@)
+	    --arch=$(basename $@) $(TESTFLAGS)
 
 $(CHECKS): $$(basename $$@)
 	@tools/test-wrapper-gypbuild.py $(TESTJOBS) --outdir=$(OUTDIR) \
-	    --arch-and-mode=$(basename $@)
+	    --arch-and-mode=$(basename $@) $(TESTFLAGS)
 
 native.check: native
 	@tools/test-wrapper-gypbuild.py $(TESTJOBS) --outdir=$(OUTDIR)/native \
-	    --arch-and-mode=.
+	    --arch-and-mode=. $(TESTFLAGS)
 
 # Clean targets. You can clean each architecture individually, or everything.
 $(addsuffix .clean,$(ARCHES)):

build/common.gypi

@@ -74,6 +74,7 @@
     'v8_use_snapshot%': 'true',
     'host_os%': '<(OS)',
     'v8_use_liveobjectlist%': 'false',
+    'werror%': '-Werror',
 
     # For a shared library build, results in "libv8-<(soname_version).so".
     'soname_version%': '',
@@ -226,7 +227,7 @@
             'cflags': [ '-I/usr/local/include' ],
           }],
           ['OS=="linux" or OS=="freebsd" or OS=="openbsd"', {
-            'cflags': [ '-Wall', '-Werror', '-W', '-Wno-unused-parameter',
+            'cflags': [ '-Wall', '<(werror)', '-W', '-Wno-unused-parameter',
                         '-Wnon-virtual-dtor' ],
           }],
         ],

build/standalone.gypi

@@ -58,6 +58,7 @@
     'host_arch%': '<(host_arch)',
     'target_arch%': '<(target_arch)',
     'v8_target_arch%': '<(v8_target_arch)',
+    'werror%': '-Werror',
     'conditions': [
       ['(v8_target_arch=="arm" and host_arch!="arm") or \
         (v8_target_arch=="x64" and host_arch!="x64")', {
@@ -78,7 +79,7 @@
   'conditions': [
     [ 'OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
       'target_defaults': {
-        'cflags': [ '-Wall', '-Werror', '-W', '-Wno-unused-parameter',
+        'cflags': [ '-Wall', '<(werror)', '-W', '-Wno-unused-parameter',
                     '-Wnon-virtual-dtor', '-pthread', '-fno-rtti',
                     '-fno-exceptions', '-pedantic' ],
         'ldflags': [ '-pthread', ],

tools/presubmit.py

@@ -211,7 +211,12 @@ class CppLintProcessor(SourceFileProcessor):
     if exists(local_cpplint):
       command = ['python', local_cpplint, '--filter', filt] + join(files)
 
-    process = subprocess.Popen(command, stderr=subprocess.PIPE)
+    try:
+      process = subprocess.Popen(command, stderr=subprocess.PIPE)
+    except:
+      print('Error running cpplint.py. Please make sure you have depot_tools' +
+            ' in your $PATH. Lint check skipped.')
+      return True
     LINT_ERROR_PATTERN = re.compile(r'^(.+)[:(]\d+[:)]')
     while True:
       out_line = process.stderr.readline()