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authorShawn O. Pearce <sop@google.com>2009-01-26 10:55:39 -0800
committerShawn O. Pearce <sop@google.com>2009-01-26 10:55:39 -0800
commit370e3fa6660fa2eb675199104cde9e9d02063cfd (patch)
tree5ff9e8399be3a6ba7db48f20c00c86989634445f /froofle/protobuf/text_format.py
parentb54a392c9a267a06058b663377282c9dcec6878e (diff)
downloadgit-repo-370e3fa6660fa2eb675199104cde9e9d02063cfd.tar.gz
Remove the protobuf based HTTP upload code path
Now that Gerrit2 has been released and the only supported upload protocol is direct git push over SSH we no longer need the large and complex protobuf client library, or the upload chunking logic in gerrit_upload.py. Signed-off-by: Shawn O. Pearce <sop@google.com>
Diffstat (limited to 'froofle/protobuf/text_format.py')
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diff --git a/froofle/protobuf/text_format.py b/froofle/protobuf/text_format.py
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1# Protocol Buffers - Google's data interchange format
2# Copyright 2008 Google Inc. All rights reserved.
3# http://code.google.com/p/protobuf/
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions are
7# met:
8#
9# * Redistributions of source code must retain the above copyright
10# notice, this list of conditions and the following disclaimer.
11# * Redistributions in binary form must reproduce the above
12# copyright notice, this list of conditions and the following disclaimer
13# in the documentation and/or other materials provided with the
14# distribution.
15# * Neither the name of Google Inc. nor the names of its
16# contributors may be used to endorse or promote products derived from
17# this software without specific prior written permission.
18#
19# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31"""Contains routines for printing protocol messages in text format."""
32
33__author__ = 'kenton@google.com (Kenton Varda)'
34
35import cStringIO
36
37from froofle.protobuf import descriptor
38
39__all__ = [ 'MessageToString', 'PrintMessage', 'PrintField', 'PrintFieldValue' ]
40
41def MessageToString(message):
42 out = cStringIO.StringIO()
43 PrintMessage(message, out)
44 result = out.getvalue()
45 out.close()
46 return result
47
48def PrintMessage(message, out, indent = 0):
49 for field, value in message.ListFields():
50 if field.label == descriptor.FieldDescriptor.LABEL_REPEATED:
51 for element in value:
52 PrintField(field, element, out, indent)
53 else:
54 PrintField(field, value, out, indent)
55
56def PrintField(field, value, out, indent = 0):
57 """Print a single field name/value pair. For repeated fields, the value
58 should be a single element."""
59
60 out.write(' ' * indent);
61 if field.is_extension:
62 out.write('[')
63 if (field.containing_type.GetOptions().message_set_wire_format and
64 field.type == descriptor.FieldDescriptor.TYPE_MESSAGE and
65 field.message_type == field.extension_scope and
66 field.label == descriptor.FieldDescriptor.LABEL_OPTIONAL):
67 out.write(field.message_type.full_name)
68 else:
69 out.write(field.full_name)
70 out.write(']')
71 elif field.type == descriptor.FieldDescriptor.TYPE_GROUP:
72 # For groups, use the capitalized name.
73 out.write(field.message_type.name)
74 else:
75 out.write(field.name)
76
77 if field.cpp_type != descriptor.FieldDescriptor.CPPTYPE_MESSAGE:
78 # The colon is optional in this case, but our cross-language golden files
79 # don't include it.
80 out.write(': ')
81
82 PrintFieldValue(field, value, out, indent)
83 out.write('\n')
84
85def PrintFieldValue(field, value, out, indent = 0):
86 """Print a single field value (not including name). For repeated fields,
87 the value should be a single element."""
88
89 if field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_MESSAGE:
90 out.write(' {\n')
91 PrintMessage(value, out, indent + 2)
92 out.write(' ' * indent + '}')
93 elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_ENUM:
94 out.write(field.enum_type.values_by_number[value].name)
95 elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_STRING:
96 out.write('\"')
97 out.write(_CEscape(value))
98 out.write('\"')
99 elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_BOOL:
100 if value:
101 out.write("true")
102 else:
103 out.write("false")
104 else:
105 out.write(str(value))
106
107# text.encode('string_escape') does not seem to satisfy our needs as it
108# encodes unprintable characters using two-digit hex escapes whereas our
109# C++ unescaping function allows hex escapes to be any length. So,
110# "\0011".encode('string_escape') ends up being "\\x011", which will be
111# decoded in C++ as a single-character string with char code 0x11.
112def _CEscape(text):
113 def escape(c):
114 o = ord(c)
115 if o == 10: return r"\n" # optional escape
116 if o == 13: return r"\r" # optional escape
117 if o == 9: return r"\t" # optional escape
118 if o == 39: return r"\'" # optional escape
119
120 if o == 34: return r'\"' # necessary escape
121 if o == 92: return r"\\" # necessary escape
122
123 if o >= 127 or o < 32: return "\\%03o" % o # necessary escapes
124 return c
125 return "".join([escape(c) for c in text])