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Don't use --color if grep doesn't support it

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Not all versions of grep support the --color flag. This checks the
output of grep --help when building the grep command and avoids using
flags that aren't compatible with the version present.

Fixes #234.
This commit is contained in:
Eli Young
2015-03-03 14:30:28 -08:00
committed by Andy Stewart
parent 4a239a7602
commit d59ac0394a
1 changed files with 8 additions and 1 deletions
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9
autoload/gitgutter/diff.vim
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@@ -1,5 +1,12 @@
let s:grep_available = executable('grep')
let s:grep_command = ' | '.(g:gitgutter_escape_grep ? '\grep' : 'grep').' --color=never -e '.gitgutter#utility#shellescape('^@@ ')
if s:grep_available
let s:grep_command = ' | '.(g:gitgutter_escape_grep ? '\grep' : 'grep')
let s:grep_help = gitgutter#utility#system('grep --help')
if s:grep_help =~# '--color'
let s:grep_command .= ' --color=never'
endif
let s:grep_command .= ' -e '.gitgutter#utility#shellescape('^@@ ')
endif
let s:hunk_re = '^@@ -\(\d\+\),\?\(\d*\) +\(\d\+\),\?\(\d*\) @@'