Mercurial > hg
annotate mercurial/bdiff.h @ 31226:cf8ad0e6c0e4
rebase: move actual rebase into a single transaction
Previously, rebasing would open several transaction over the course of rebasing
several commits. Opening a transaction can have notable overhead (like copying
the dirstate) which can add up when rebasing many commits.
This patch adds a single large transaction around the actual commit rebase
operation, with a catch for intervention which serializes the current state if
we need to drop back to the terminal for user intervention. Amazingly, almost
all the tests seem to pass.
On large repos with large working copies, this can speed up rebasing 7 commits
by 25%. I'd expect the percentage to be a bit larger for rebasing even more
commits.
There are minor test changes because we're rolling back the entire transaction
during unexpected exceptions instead of just stopping mid-rebase, so there's no
more backup bundle. It also leave an unknown file in the working copy, since our
clean up 'hg update' doesn't delete unknown files.
author | Durham Goode <durham@fb.com> |
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date | Tue, 07 Mar 2017 16:27:32 -0800 |
parents | 9631ff5ebbeb |
children | 72985b390d7c |
rev | line source |
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29541
9631ff5ebbeb
bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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1 #ifndef _HG_BDIFF_H_ |
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bdiff: split bdiff into cpy-aware and cpy-agnostic part
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parents:
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2 #define _HG_BDIFF_H_ |
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Maciej Fijalkowski <fijall@gmail.com>
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3 |
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bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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4 struct bdiff_line { |
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Maciej Fijalkowski <fijall@gmail.com>
parents:
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5 int hash, n, e; |
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bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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6 ssize_t len; |
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bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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7 const char *l; |
9631ff5ebbeb
bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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8 }; |
9631ff5ebbeb
bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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9 |
9631ff5ebbeb
bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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10 struct bdiff_hunk; |
9631ff5ebbeb
bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
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11 struct bdiff_hunk { |
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bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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12 int a1, a2, b1, b2; |
9631ff5ebbeb
bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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13 struct bdiff_hunk *next; |
9631ff5ebbeb
bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
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14 }; |
9631ff5ebbeb
bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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15 |
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Maciej Fijalkowski <fijall@gmail.com>
parents:
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16 int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr); |
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Maciej Fijalkowski <fijall@gmail.com>
parents:
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17 int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn, |
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Maciej Fijalkowski <fijall@gmail.com>
parents:
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18 struct bdiff_hunk *base); |
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bdiff: split bdiff into cpy-aware and cpy-agnostic part
Maciej Fijalkowski <fijall@gmail.com>
parents:
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19 void bdiff_freehunks(struct bdiff_hunk *l); |
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20 |
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Maciej Fijalkowski <fijall@gmail.com>
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21 #endif |