view tests/svn/empty.svndump @ 50400:95acba2c29f6

encoding: avoid quadratic time complexity when json-encoding non-UTF8 strings

Apparently the code uses "+=" with a bytes object, which is linear-time, so the
whole encoding is quadratic-time. This patch makes us use a bytearray object,
instead, which has a(n amortized-)constant-time append operation.

The encoding is still not particularly fast, but at least a 10MB file
takes tens of seconds, not many hours to encode.

SVN-fs-dump-format-version: 2

UUID: b70c45d5-2b76-4722-a373-d9babae61626

Revision-number: 0
Prop-content-length: 260
Content-length: 260

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svn:date
V 27
2012-04-18T11:35:14.752409Z
K 17
svn:sync-from-url
V 73
file:///Users/pmezard/dev/hg/hg-pmezard/tests/svn/temp/svn-repo/trunk/dir
K 18
svn:sync-from-uuid
V 36
56625b9e-e7e9-45be-ab61-052d41f0e1dd
K 24
svn:sync-last-merged-rev
V 1
4
PROPS-END

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Prop-content-length: 112
Content-length: 112

K 10
svn:author
V 7
pmezard
K 8
svn:date
V 27
2012-04-18T11:35:14.769622Z
K 7
svn:log
V 10
init projA
PROPS-END

Node-path: trunk
Node-kind: dir
Node-action: add
Prop-content-length: 10
Content-length: 10

PROPS-END


Revision-number: 2
Prop-content-length: 107
Content-length: 107

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svn:author
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pmezard
K 8
svn:date
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2012-04-18T11:35:15.052989Z
K 7
svn:log
V 6
adddir
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Node-kind: dir
Node-action: add
Prop-content-length: 10
Content-length: 10

PROPS-END


Node-path: trunk/dir/a
Node-kind: file
Node-action: add
Prop-content-length: 10
Text-content-length: 2
Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3
Text-content-sha1: 3f786850e387550fdab836ed7e6dc881de23001b
Content-length: 12

PROPS-END
a


Revision-number: 3
Prop-content-length: 105
Content-length: 105

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svn:author
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pmezard
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svn:date
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2012-04-18T11:35:16.050353Z
K 7
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addb
PROPS-END

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Prop-content-length: 105
Content-length: 105

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svn:author
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pmezard
K 8
svn:date
V 27
2012-04-18T11:35:17.050768Z
K 7
svn:log
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addc
PROPS-END