annotate tests/test-issue4074.t @ 30646:ea3540e66fd8

convert: config option for git rename limit By default, Git applies rename and copy detection to 400 files. The diff.renamelimit config option and -l argument to diff commands can override this. As part of converting some repositories in the wild, I was hitting the default limit. Unfortunately, the warnings that Git prints in this scenario are swallowed because the process running functionality in common.py redirects stderr to /dev/null by default. This seems like a bug, but a bug for another day. This commit establishes a config option to send the rename limit through to `git diff-tree`. The added tests demonstrate a too-low rename limit doesn't result in copy metadata being recorded.
author Gregory Szorc <gregory.szorc@gmail.com>
date Sun, 18 Dec 2016 12:53:20 -0800
parents f1ca249696ed
children 75be14993fda
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1 #require no-pure
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2
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3 A script to generate nasty diff worst-case scenarios:
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4
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5 $ cat > s.py <<EOF
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6 > import random
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7 > for x in xrange(100000):
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8 > print
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9 > if random.randint(0, 100) >= 50:
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10 > x += 1
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11 > print hex(x)
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12 > EOF
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13
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14 $ hg init a
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15 $ cd a
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16
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17 Check in a big file:
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18
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19 $ python ../s.py > a
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20 $ hg ci -qAm0
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21
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22 Modify it:
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23
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24 $ python ../s.py > a
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25
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26 Time a check-in, should never take more than 10 seconds user time:
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27
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28 $ hg ci --time -m1
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29 time: real .* secs .user [0-9][.].* sys .* (re)