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95734c6f6b
With this change, setting `g:gitgutter_grep_command` to ' | grep --color=never -e "^@@ "'`
greatly reduces startup time.
Before this change, `diff.vim` was a major bottleneck because it calls
`grep --help`. This is mostly unnecessary except in a few cases where
the user is running a nonstandard version of grep.
`vim --startuptime start.out large_file.sql` before:
times in msec
clock self+sourced self: sourced script
clock elapsed: other lines
000.026 000.026: --- VIM STARTING ---
[...]
068.463 003.645 003.500: sourcing /home/dchurch/.vim/plugin/gitgutter.vim
[...]
150.957 000.208 000.208: sourcing /home/dchurch/.vim/autoload/gitgutter.vim
151.294 000.196 000.196: sourcing /home/dchurch/.vim/autoload/gitgutter/utility.vim
165.059 012.619 012.619: sourcing /home/dchurch/.vim/autoload/gitgutter/diff.vim
236.901 000.188 000.188: sourcing /home/dchurch/.vim/autoload/gitgutter/hunk.vim
237.289 000.233 000.233: sourcing /home/dchurch/.vim/autoload/gitgutter/sign.vim
[...]
337.673 000.004: --- VIM STARTED ---
After change, and setting `g:gitgutter_grep_command = ' | grep --color=never -e "^@@ "'`:
000.026 000.026: --- VIM STARTING ---
[...]
064.873 002.713 002.591: sourcing /home/dchurch/.vim/plugin/gitgutter.vim
[...]
134.109 000.149 000.149: sourcing /home/dchurch/.vim/autoload/gitgutter.vim
134.337 000.147 000.147: sourcing /home/dchurch/.vim/autoload/gitgutter/utility.vim
135.411 000.232 000.232: sourcing /home/dchurch/.vim/autoload/gitgutter/diff.vim
187.831 000.180 000.180: sourcing /home/dchurch/.vim/autoload/gitgutter/hunk.vim
188.223 000.175 000.175: sourcing /home/dchurch/.vim/autoload/gitgutter/sign.vim
[...]
285.008 000.004: --- VIM STARTED ---