Python3 support

* Mostly involves changing print to be a function, and adding
  "from __future__ import print_function" for copatibility.

Change-Id: I3129233726e0116a348753a2e2bb68806a08668c
Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>

Documentation/licenses.py

@@ -15,6 +15,8 @@
 #
 # TODO(sop): Be more detailed: version, link to Maven Central
 
+from __future__ import print_function
+
 from collections import defaultdict, deque
 import re
 from shutil import copyfileobj
@@ -51,9 +53,9 @@ while queue:
       continue
     licenses[dep].add(target)
   queue.extend(graph[target])
-used = sorted(licenses.iterkeys())
+used = sorted(licenses.keys())
 
-print """\
+print("""\
 Gerrit Code Review - Licenses
 =============================
 
@@ -100,30 +102,30 @@ to be installed by the end-user.
 
 Licenses
 --------
-"""
+""")
 
 for n in used:
   libs = sorted(licenses[n])
   name = n[len('//lib:LICENSE-'):]
-  print
+  print()
-  print '[[%s]]' % name
+  print('[[%s]]' % name)
-  print name
+  print(name)
-  print '~' * len(name)
+  print('~' * len(name))
-  print
+  print()
   for d in libs:
     if d.startswith('//lib:') or d.startswith('//lib/'):
       p = d[len('//lib:'):]
     else:
       p = d[d.index(':')+1:].lower()
-    print '* ' + p
+    print('* ' + p)
-  print
+  print()
-  print '----'
+  print('----')
   with open(n[2:].replace(':', '/')) as fd:
     copyfileobj(fd, stdout)
-  print '----'
+  print('----')
 
-print """
+print("""
 GERRIT
 ------
 Part of link:index.html[Gerrit Code Review]
-"""
+""")

contrib/check-valid-commit.py

@@ -1,5 +1,8 @@
 #!/usr/bin/env python
-import commands
+
+from __future__ import print_function
+
+import subprocess
 import getopt
 import sys
 
@@ -24,8 +27,8 @@ def main():
     try:
         opts, args = getopt.getopt(sys.argv[1:], '', \
             ['change=', 'project=', 'branch=', 'commit=', 'patchset='])
-    except getopt.GetoptError, err:
+    except getopt.GetoptError as err:
-        print 'Error: %s' % (err)
+        print('Error: %s' % (err))
         usage()
         sys.exit(-1)
 
@@ -41,7 +44,7 @@ def main():
         elif arg == '--patchset':
             patchset = value
         else:
-            print 'Error: option %s not recognized' % (arg)
+            print('Error: option %s not recognized' % (arg))
             usage()
             sys.exit(-1)
 
@@ -51,11 +54,11 @@ def main():
         sys.exit(-1)
 
     command = 'git cat-file commit %s' % (commit)
-    status, output = commands.getstatusoutput(command)
+    status, output = subprocess.getstatusoutput(command)
 
     if status != 0:
-        print 'Error running \'%s\'. status: %s, output:\n\n%s' % \
+        print('Error running \'%s\'. status: %s, output:\n\n%s' % \
-            (command, status, output)
+            (command, status, output))
         sys.exit(-1)
 
     commitMessage = output[(output.find('\n\n')+2):]
@@ -74,21 +77,21 @@ def main():
     passes(commit)
 
 def usage():
-    print 'Usage:\n'
+    print('Usage:\n')
-    print sys.argv[0] + ' --change <change id> --project <project name> ' \
+    print(sys.argv[0] + ' --change <change id> --project <project name> ' \
-        + '--branch <branch> --commit <sha1> --patchset <patchset id>'
+        + '--branch <branch> --commit <sha1> --patchset <patchset id>')
 
 def fail( commit, message ):
     command = SSH_COMMAND + FAILURE_SCORE + ' -m \\\"' \
         + _shell_escape( FAILURE_MESSAGE + '\n\n' + message) \
         + '\\\" ' + commit
-    commands.getstatusoutput(command)
+    subprocess.getstatusoutput(command)
     sys.exit(1)
 
 def passes( commit ):
     command = SSH_COMMAND + PASS_SCORE + ' -m \\\"' \
         + _shell_escape(PASS_MESSAGE) + ' \\\" ' + commit
-    commands.getstatusoutput(command)
+    subprocess.getstatusoutput(command)
 
 def _shell_escape(x):
     s = ''

contrib/trivial_rebase.py

@@ -36,6 +36,8 @@ Documentation is available here: https://www.codeaurora.org/xwiki/bin/QAEP/Gerri
 
 """
 
+from __future__ import print_function
+
 import argparse
 import json
 import re
@@ -95,7 +97,7 @@ class TrivialRebase:
     try:
       process = subprocess.Popen(command, cwd=cwd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
       std_out, std_err = process.communicate()
-    except OSError, e:
+    except OSError as e:
       raise self.CheckCallError(command, cwd, e.errno, None)
     if process.returncode:
       raise self.CheckCallError(command, cwd, process.returncode, std_out, std_err)
@@ -107,9 +109,9 @@ class TrivialRebase:
                 '--format', 'JSON', '-c', sql_query]
     try:
       (gsql_out, _gsql_stderr) = self.CheckCall(gsql_cmd)
-    except self.CheckCallError, e:
+    except self.CheckCallError as e:
-      print "return code is %s" % e.retcode
+      print("return code is %s" % e.retcode)
-      print "stdout and stderr is\n%s%s" % (e.stdout, e.stderr)
+      print("stdout and stderr is\n%s%s" % (e.stdout, e.stderr))
       raise
 
     new_out = gsql_out.replace('}}\n', '}}\nsplit here\n')
@@ -194,7 +196,7 @@ class TrivialRebase:
     prev_patch_id = self.GetPatchId(prev_revision)
     cur_patch_id = self.GetPatchId(self.commit)
     if prev_patch_id == '0' and cur_patch_id == '0':
-      print "commits %s and %s are both empty or merge commits" % (prev_revision, self.commit)
+      print("commits %s and %s are both empty or merge commits" % (prev_revision, self.commit))
       return
     if cur_patch_id != prev_patch_id:
       # patch-ids don't match
@@ -237,7 +239,7 @@ class TrivialRebase:
 
     gerrit_review_msg = ("\'Automatically re-added by Gerrit trivial rebase "
                           "detection script.\'")
-    for acct, flags in self.acct_approvals.items():
+    for acct, flags in list(self.acct_approvals.items()):
       gerrit_review_cmd = ['gerrit', 'review', '--project', self.project,
                             '--message', gerrit_review_msg, flags, self.commit]
       email_addr = self.GetEmailFromAcctId(acct)
@@ -246,5 +248,5 @@ class TrivialRebase:
 if __name__ == "__main__":
   try:
     TrivialRebase().Run()
-  except AssertionError, e:
+  except AssertionError as e:
-    print >> sys.stderr, e
+    print(e, file=sys.stderr)

lib/gwt/compiler.py

@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import print_function
+
 from multiprocessing import cpu_count
 from os import environ, fchmod, makedirs, mkdir, path
 from subprocess import Popen, PIPE
@@ -31,7 +33,7 @@ for a in argv[3:]:
     opt.append(a)
 
 if not outzip.endswith('.zip'):
-  print >>stderr, "%s must end with .zip" % outzip
+  print("%s must end with .zip" % outzip, file=stderr)
   exit(1)
 
 rebuild = outzip[:-4] + '.rebuild'
@@ -56,13 +58,13 @@ cmd = [
 gwt = Popen(cmd, stdout = PIPE, stderr = PIPE)
 out, err = gwt.communicate()
 if gwt.returncode != 0:
-  print >>stderr, out + err
+  print(out + err, file=stderr)
   exit(gwt.returncode)
 
 with open(rebuild, 'w') as fd:
   def shquote(s):
     return s.replace("'", "'\\''")
-  print >>fd, '#!/bin/sh'
+  print('#!/bin/sh', file=fd)
-  print >>fd, "PATH='%s'" % shquote(environ['PATH'])
+  print("PATH='%s'" % shquote(environ['PATH']), file=fd)
-  print >>fd, 'buck build "$1" || exit'
+  print('buck build "$1" || exit', file=fd)
-  fchmod(fd.fileno(), 0755)
+  fchmod(fd.fileno(), 0o755)

tools/download_jar.py

@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import print_function
+
 from hashlib import sha1
 from optparse import OptionParser
 from os import link, makedirs, path
@@ -64,18 +66,18 @@ if not path.exists(cache_ent):
     safe_mkdirs(path.dirname(cache_ent))
     check_call(['curl', '-sfo', cache_ent, args.u])
   except (OSError, CalledProcessError) as err:
-    print >>stderr, "error using curl: %s" % str(err)
+    print("error using curl: %s" % str(err), file=stderr)
     exit(1)
 
 if args.v:
   have = hashfile(cache_ent)
   if args.v != have:
     o = cache_ent[len(root_dir) + 1:]
-    print >>stderr, (
+    print((
       '%s:\n' +
       'expected %s\n' +
       'received %s\n' +
-      '         %s\n') % (args.u, args.v, have, o)
+      '         %s\n') % (args.u, args.v, have, o), file=stderr)
     exit(1)
 
 exclude = []
@@ -91,7 +93,7 @@ if args.exclude_java_sources:
     finally:
       zf.close()
   except (BadZipfile, LargeZipFile) as err:
-    print >>stderr, "error opening %s: %s"  % (cache_ent, str(err))
+    print("error opening %s: %s"  % (cache_ent, str(err)), file=stderr)
     exit(1)
 
 safe_mkdirs(path.dirname(args.o))

tools/eclipse/gen_project.py

@@ -15,6 +15,8 @@
 #
 # TODO(sop): Remove hack after Buck supports Eclipse
 
+from __future__ import print_function
+
 from os import path, symlink
 from sys import argv
 
@@ -25,7 +27,7 @@ for _ in range(0, 3):
 
 p = path.join(ROOT, '.project')
 with open(p, 'w') as fd:
-  print >>fd, """\
+  print("""\
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
   <name>gerrit</name>
@@ -38,5 +40,5 @@ with open(p, 'w') as fd:
     <nature>org.eclipse.jdt.core.javanature</nature>
   </natures>
 </projectDescription>\
-"""
+""", file=fd)
 symlink(p, OUT)