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Merge branch 'lt/abbrev-auto'

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Allow the default abbreviation length, which has historically been
7, to scale as the repository grows.  The logic suggests to use 12
hexdigits for the Linux kernel, and 9 to 10 for Git itself.

* lt/abbrev-auto:
  abbrev: auto size the default abbreviation
  abbrev: prepare for new world order
  abbrev: add FALLBACK_DEFAULT_ABBREV to prepare for auto sizing
This commit is contained in:
Junio C Hamano
2016-10-27 14:58:47 -07:00
parent 2cc2e70264 e6c587c733
commit 580d820ece
7 changed files with 40 additions and 7 deletions
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5
builtin/rev-parse.c
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@ -671,8 +671,9 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
filter &= ~(DO_FLAGS|DO_NOREV);
verify = 1;
abbrev = DEFAULT_ABBREV;
if (arg[7] == '=')
abbrev = strtoul(arg + 8, NULL, 10);
if (!arg[7])
continue;
abbrev = strtoul(arg + 8, NULL, 10);
if (abbrev < MINIMUM_ABBREV)
abbrev = MINIMUM_ABBREV;
else if (40 <= abbrev)