fix print functions for python3 gn scripts

Change-Id: I478b10c23aae0c363b0d7342f25663ca8fc0d0fa
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/274637
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>

gn/checkdir.py

@@ -5,11 +5,13 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from __future__ import print_function
+
 import os
 import sys
 
 dirpath, = sys.argv[1:]
 
-print os.path.isdir(dirpath)
+print(os.path.isdir(dirpath))
 
 

gn/find_xcode_sysroot.py

@@ -5,9 +5,11 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from __future__ import print_function
+
 import subprocess
 import sys
 
 (sdk,) = sys.argv[1:]
 
-print subprocess.check_output(['xcrun', '--sdk', sdk, '--show-sdk-path'])
+print(subprocess.check_output(['xcrun', '--sdk', sdk, '--show-sdk-path']))

gn/gn_meta_sln.py

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from __future__ import print_function
+
 import os
 import glob
 import re
@@ -72,7 +74,7 @@ for config in configs:
 # We need something to work with. Typically, this will fail if no GN folders
 # have IDE files
 if len(allProjects) == 0:
-    print "ERROR: At least one GN directory must have been built with --ide=vs"
+    print("ERROR: At least one GN directory must have been built with --ide=vs")
     sys.exit()
 
 # Create a new solution. We arbitrarily use the first config as the GUID source

gn/gn_to_bp.py

@@ -7,6 +7,8 @@
 
 # Generate Android.bp for Skia from GN configuration.
 
+from __future__ import print_function
+
 import os
 import pprint
 import string
@@ -442,13 +444,13 @@ def disallow_platforms(config, desired):
         s += ' || '
         if i % 2 == 1:
           s += '\\\n    '
-    print >>f, s
-    print >>f, '    #error "Only SK_BUILD_FOR_%s should be defined!"' % desired
-    print >>f, '#endif'
+    print(s, file=f)
+    print('    #error "Only SK_BUILD_FOR_%s should be defined!"' % desired, file=f)
+    print('#endif', file=f)
 
 def append_to_file(config, s):
   with open(config, 'a') as f:
-    print >>f, s
+    print(s, file=f)
 
 android_config = 'android/include/config/SkUserConfig.h'
 gn_to_bp_utils.WriteUserConfig(android_config, android_defines)
@@ -483,7 +485,7 @@ def bpfmt(indent, lst, sort=True):
 
 # OK!  We have everything to fill in Android.bp...
 with open('Android.bp', 'w') as Android_bp:
-  print >>Android_bp, bp.substitute({
+  print(bp.substitute({
     'export_includes': bpfmt(8, export_includes),
     'local_includes':  bpfmt(8, local_includes),
     'srcs':            bpfmt(8, srcs),
@@ -512,4 +514,4 @@ with open('Android.bp', 'w') as Android_bp:
     'linux_srcs':    bpfmt(10, linux_srcs),
     'mac_srcs':      bpfmt(10, mac_srcs),
     'win_srcs':      bpfmt(10, win_srcs),
-  })
+  }), file=Android_bp)

gn/gn_to_bp_utils.py

@@ -7,6 +7,8 @@
 
 # Generate Android.bp for Skia from GN configuration.
 
+from __future__ import print_function
+
 import argparse
 import json
 import os
@@ -111,12 +113,12 @@ def WriteUserConfig(userConfigPath, defines):
 
   #... and all the #defines we want to put in SkUserConfig.h.
   with open(userConfigPath, 'w') as f:
-    print >>f, '// DO NOT MODIFY! This file is autogenerated by gn_to_bp.py.'
-    print >>f, '// If need to change a define, modify SkUserConfigManual.h'
-    print >>f, '#pragma once'
-    print >>f, '#include "SkUserConfigManual.h"'
+    print('// DO NOT MODIFY! This file is autogenerated by gn_to_bp.py.', file=f)
+    print('// If need to change a define, modify SkUserConfigManual.h', file=f)
+    print('#pragma once', file=f)
+    print('#include "SkUserConfigManual.h"', file=f)
     for define in sorted(defines):
-      print >>f, ''
-      print >>f, '#ifndef', define.split('=')[0]
-      print >>f, '#define', define.replace('=', ' ', 1)
-      print >>f, '#endif'
+      print('', file=f)
+      print('#ifndef', define.split('=')[0], file=f)
+      print('#define', define.replace('=', ' ', 1), file=f)
+      print('#endif', file=f)

gn/highest_version_dir.py

@@ -5,6 +5,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from __future__ import print_function
+
 import os
 import re
 import sys
@@ -12,4 +14,4 @@ import sys
 dirpath = sys.argv[1]
 regex = re.compile(sys.argv[2])
 
-print sorted(filter(regex.match, os.listdir(dirpath)))[-1]
+print(sorted(filter(regex.match, os.listdir(dirpath)))[-1])

gn/is_clang.py

@@ -5,13 +5,14 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from __future__ import print_function
+
 import subprocess
 import sys
 cc,cxx = sys.argv[1:3]
 
 if ('clang' in subprocess.check_output('%s --version' % cc, shell=True) and
     'clang' in subprocess.check_output('%s --version' % cxx, shell=True)):
-  print 'true'
+  print('true')
 else:
-  print 'false'
-
+  print('false')