Improve performance #2
Description
Hi,
Thanks for this, I couldn't quite get powerline itself to work in my setup so this is handy.
Where I work the git repo is really big so each git command takes about 0.3 seconds.
As there a few it takes about a second to draw for the prompt to draw.
I don't know git well enough to provide a patch, but I was looking at whether its possible to get more of the stats using fewer external commands,
As an experiment I've made a script that gets the changed file count, and the the amount of insertions, using one call to git diff --shortstat and then parsing the output in bash.
Maybe this would be useful in helping speed up rendering of the prompt?
$ ./parse_git_stats.sh
original output: " 3 files changed"
changed: '3'
inserted: '4'script:
#!/bin/bash
# Set comma as the delimiter
IFS=','
read -a gitstat <<< $(git diff --shortstat)
# Example output from git diff --shortstat:
# 3 files changed, 4 insertions(+)
#
# read has split it by comma, next remove space prefix and text suffix
# using bash.
git_changed=${gitstat[0]%" files changed"}
git_changed=${git_changed# }
git_insertions=${gitstat[1]% "insertions(+)"}
git_insertions=${git_insertions# }
echo "changed: '"$git_changed"'"
echo "inserted: '"$git_insertions"'"
Most of the work is removing the prefixes + suffixes from the strings.