Mercurial > hg
annotate mercurial/bdiff.h @ 37290:cc5a040fe150
wireproto: syntax for encoding CBOR into frames
We just vendored a library for encoding and decoding the CBOR
data format. While the intent of that vendor was to support state
files, CBOR is really a nice data format. It is extensible and
compact.
I've been feeling dirty inventing my own data formats for
frame payloads. While custom formats can always beat out a generic
format, there is a cost to be paid in terms of implementation,
comprehension, etc. CBOR is compact enough that I'm not too
worried about efficiency loss. I think the benefits of using
a standardized format outweigh rolling our own formats. So
I plan to make heavy use of CBOR in the wire protocol going
forward.
This commit introduces support for encoding CBOR data in frame
payloads to our function to make a frame from a human string.
We do need to employ some low-level Python code in order to
evaluate a string as a Python expression. But other than that,
this should hopefully be pretty straightforward.
Unit tests for this function have been added.
Differential Revision: https://phab.mercurial-scm.org/D2948
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Wed, 28 Mar 2018 15:05:39 -0700 |
parents | 174d115d8104 |
children | d86908050375 |
rev | line source |
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1 #ifndef _HG_BDIFF_H_ |
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2 #define _HG_BDIFF_H_ |
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4 #include "compat.h" |
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5 |
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6 struct bdiff_line { |
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7 int hash, n, e; |
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8 ssize_t len; |
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9 const char *l; |
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10 }; |
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11 |
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12 struct bdiff_hunk; |
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13 struct bdiff_hunk { |
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14 int a1, a2, b1, b2; |
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15 struct bdiff_hunk *next; |
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16 }; |
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17 |
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18 int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr); |
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19 int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn, |
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20 struct bdiff_hunk *base); |
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21 void bdiff_freehunks(struct bdiff_hunk *l); |
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22 |
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23 #endif |