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[hg] Cache the result of the in_hg call within hg_prompt_info helpers

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The helper functions are smart only work if the user is in an hg repository. Unfortunately checking that fact can take a while for large repos, so these redundant checks are taking a while. This diff stores the result of the first call from `hg_prompt_info` in a local variable and just checks that for every other function.

This gave me a multi-second speedup locally.
This commit is contained in:
Scott Rice 2015-09-24 09:58:04 -07:00
parent 42a47c2dae
commit 5de6253b0c
1 changed files with 5 additions and 3 deletions
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8
plugins/mercurial/mercurial.plugin.zsh
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@ -26,22 +26,24 @@ function in_hg() {
} }
function hg_get_branch_name() { function hg_get_branch_name() {
if [ $(in_hg) ]; then if [ $_INHG ]; then
echo $(hg branch) echo $(hg branch)
fi fi
} }
function hg_prompt_info { function hg_prompt_info {
if [ $(in_hg) ]; then _INHG=$(in_hg)
if [ $_INHG ]; then
_DISPLAY=$(hg_get_branch_name) _DISPLAY=$(hg_get_branch_name)
echo "$ZSH_PROMPT_BASE_COLOR$ZSH_THEME_HG_PROMPT_PREFIX\ echo "$ZSH_PROMPT_BASE_COLOR$ZSH_THEME_HG_PROMPT_PREFIX\
$ZSH_THEME_REPO_NAME_COLOR$_DISPLAY$ZSH_PROMPT_BASE_COLOR$ZSH_PROMPT_BASE_COLOR$(hg_dirty)$ZSH_THEME_HG_PROMPT_SUFFIX$ZSH_PROMPT_BASE_COLOR" $ZSH_THEME_REPO_NAME_COLOR$_DISPLAY$ZSH_PROMPT_BASE_COLOR$ZSH_PROMPT_BASE_COLOR$(hg_dirty)$ZSH_THEME_HG_PROMPT_SUFFIX$ZSH_PROMPT_BASE_COLOR"
unset _DISPLAY unset _DISPLAY
fi fi
unset _INHG
} }
function hg_dirty_choose { function hg_dirty_choose {
if [ $(in_hg) ]; then if [ $_INHG ]; then
# Allow turning off the 'hg status' call. Useful in large repos where that # Allow turning off the 'hg status' call. Useful in large repos where that
# can take a while. Mirror the functionality of the git plugin by just # can take a while. Mirror the functionality of the git plugin by just
# showing the "clean" prompt in this case. # showing the "clean" prompt in this case.