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[bugfix] Fixed performance issue with git prompt 

The git prompt would could bash to use 100% CPU
for large amounts of time when dealing with long
`git status` outputs.
pull/649/head
Christophe Aguettaz 2016-01-25 20:02:50 +01:00
parent b422d756b0
commit 3fa0881281
1 changed files with 35 additions and 6 deletions
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41
themes/base.theme.bash
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@ -92,19 +92,48 @@ function scm_prompt_info {
[[ $SCM == $SCM_SVN ]] && svn_prompt_info && return
}
function git_status_summary {
awk '
{
if (!after_first && $0 ~ /^##.+/) {
print $0
seen_header = 1
} else if ($0 ~ /^\?\? .+/) {
untracked += 1
} else {
if ($0 ~ /^.[^ ] .+/) {
unstaged += 1
}
if ($0 ~ /^[^ ]. .+/) {
staged += 1
}
}
after_first = 1
}
END {
if (!seen_header) {
print
}
print untracked
print unstaged
print staged
}'
}
function git_prompt_vars {
local details=''
SCM_STATE=${GIT_THEME_PROMPT_CLEAN:-$SCM_THEME_PROMPT_CLEAN}
if [[ "$(git config --get bash-it.hide-status)" != "1" ]]; then
[[ "${SCM_GIT_IGNORE_UNTRACKED}" = "true" ]] && local git_status_flags='-uno'
local status="$(git status -b --porcelain ${git_status_flags} 2> /dev/null ||
git status --porcelain ${git_status_flags} 2> /dev/null)"
if [[ -n "${status}" ]] && [[ "${status}" != "\n" ]] && [[ -n "$(grep -v ^# <<< "${status}")" ]]; then
readarray -t status_lines < <((git status --porcelain ${git_status_flags} -b 2> /dev/null ||
git status --porcelain ${git_status_flags} 2> /dev/null) | git_status_summary )
local status="${status_lines[0]}"
local untracked_count="${status_lines[1]}"
local unstaged_count="${status_lines[2]}"
local staged_count="${status_lines[3]}"
if [[ "${untracked_count}" -gt 0 || "${unstaged_count}" -gt 0 || "${staged_count}" -gt 0 ]]; then
SCM_DIRTY=1
if [[ "${SCM_GIT_SHOW_DETAILS}" = "true" ]]; then
local untracked_count="$(egrep -c '^\?\? .+' <<< "${status}")"
local unstaged_count="$(egrep -c '^.[^ ?#] .+' <<< "${status}")"
local staged_count="$(egrep -c '^[^ ?#]. .+' <<< "${status}")"
[[ "${staged_count}" -gt 0 ]] && details+=" ${SCM_GIT_STAGED_CHAR}${staged_count}" && SCM_DIRTY=3
[[ "${unstaged_count}" -gt 0 ]] && details+=" ${SCM_GIT_UNSTAGED_CHAR}${unstaged_count}" && SCM_DIRTY=2
[[ "${untracked_count}" -gt 0 ]] && details+=" ${SCM_GIT_UNTRACKED_CHAR}${untracked_count}" && SCM_DIRTY=1