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Timebox the git status checks inside prompt so slow repos don't hang the zsh prompt.

Browse source 
Give "robbyrussell" them support for the timed-out check.

Uses zsh's `coproc` to put a timeout on the `git status` call inside git_prompt_info()
Introduces $ZSH_THEME_GIT_PROMPT_TIMEDOUT and $ZSH_THEME_SCM_CHECK_TIMEOUT theme configuration variables to control how long the timeout is and how the timed-out indicator appears inside the prompt.
This commit is contained in:
Andrew Janke 2015-03-26 17:53:02 -04:00
commit 3efa6ceddd
3 changed files with 22 additions and 6 deletions
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22
lib/git.zsh
View file

@ -12,6 +12,7 @@ function git_prompt_info() {
parse_git_dirty() {
local STATUS=''
local FLAGS
local COPID=''
FLAGS=('--porcelain')
if [[ "$(command git config --get oh-my-zsh.hide-dirty)" != "1" ]]; then
if [[ $POST_1_7_2_GIT -gt 0 ]]; then
@ -20,12 +21,21 @@ parse_git_dirty() {
if [[ "$DISABLE_UNTRACKED_FILES_DIRTY" == "true" ]]; then
FLAGS+='--untracked-files=no'
fi
STATUS=$(command git status ${FLAGS} 2> /dev/null | tail -n1)
fi
if [[ -n $STATUS ]]; then
echo "$ZSH_THEME_GIT_PROMPT_DIRTY"
else
echo "$ZSH_THEME_GIT_PROMPT_CLEAN"
# Use coproc to timebox `git status` so slow repo access doesn't hang the prompt
# Use dummy "xxx" to distinguish timeouts from empty output
local END_OUTPUT="_end_of_status_"
coproc (command git status ${FLAGS} 2> /dev/null; echo $END_OUTPUT)
COPID=$!
read -p -t $ZSH_THEME_SCM_CHECK_TIMEOUT STATUS
if [[ -z $STATUS ]]; then
echo "$ZSH_THEME_GIT_PROMPT_TIMEDOUT"
# Get rid of that git run
kill -s KILL $COPID &>/dev/null
elif [[ $STATUS = $END_OUTPUT ]]; then
echo "$ZSH_THEME_GIT_PROMPT_CLEAN"
else
echo "$ZSH_THEME_GIT_PROMPT_DIRTY"
fi
fi
}

5
lib/theme-and-appearance.zsh
View file

@ -39,6 +39,11 @@ ZSH_THEME_GIT_PROMPT_PREFIX="git:(" # Prefix at the very beginning of th
ZSH_THEME_GIT_PROMPT_SUFFIX=")" # At the very end of the prompt
ZSH_THEME_GIT_PROMPT_DIRTY="*" # Text to display if the branch is dirty
ZSH_THEME_GIT_PROMPT_CLEAN="" # Text to display if the branch is clean
ZSH_THEME_GIT_PROMPT_TIMEDOUT="?" # Text to display if status check timed out
# Timeout (in seconds, fractions OK) for SCM (git/hg/etc) info checks done
# inside prompt
ZSH_THEME_SCM_CHECK_TIMEOUT=1
# Setup the prompt with pretty colors
setopt prompt_subst

1
themes/robbyrussell.zsh-theme
View file

@ -4,4 +4,5 @@ PROMPT='${ret_status}%{$fg_bold[green]%}%p %{$fg[cyan]%}%c %{$fg_bold[blue]%}$(g
ZSH_THEME_GIT_PROMPT_PREFIX="git:(%{$fg[red]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[blue]%}) %{$fg[yellow]%}✗%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_TIMEDOUT="%{$fg[blue]%}) %{$fg[red]%}?%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[blue]%})"