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| author | Brian Degenhardt <bdegenhardt@twitter.com> | 2015-07-27 14:19:23 -0700 |
|---|---|---|
| committer | Brian Degenhardt <bdegenhardt@twitter.com> | 2015-07-27 14:19:23 -0700 |
| commit | b875df8970a67d02eef74f1aad0b60f42fedb356 (patch) | |
| tree | 66463a5b8a1d268805aa06616b4a86216871d387 | |
| parent | a207a38d634cc10441636bc4359cd8a18c502dea (diff) | |
| download | zsh-b875df8970a67d02eef74f1aad0b60f42fedb356.tar.gz zsh-b875df8970a67d02eef74f1aad0b60f42fedb356.tar.bz2 zsh-b875df8970a67d02eef74f1aad0b60f42fedb356.zip | |
agnoster: speed up git prompt
Problem
On detached-refs, the git prompt is very slow because it uses a command
to output all refs, which takes 32s on the twitter internal git repo.
Solution
Use git-rev-parse instead of git-show-ref to only output the head ref.
Runtime drops to 0.03 seconds.
Note
Interestingly, git-rev-parse isn't slow without the --head arguement so
I'll probably be cooking up a patch for the git team to speed this up
eventually, but it's still pointless to sigpipe git as it walks the
filesystem.
| -rw-r--r-- | themes/agnoster.zsh-theme | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/themes/agnoster.zsh-theme b/themes/agnoster.zsh-theme index 3a0c58b89..ee0c2afb8 100644 --- a/themes/agnoster.zsh-theme +++ b/themes/agnoster.zsh-theme @@ -78,7 +78,7 @@ prompt_git() { if $(git rev-parse --is-inside-work-tree >/dev/null 2>&1); then dirty=$(parse_git_dirty) - ref=$(git symbolic-ref HEAD 2> /dev/null) || ref="➦ $(git show-ref --head -s --abbrev |head -n1 2> /dev/null)" + ref=$(git symbolic-ref HEAD 2> /dev/null) || ref="➦ $(git rev-parse --short HEAD 2> /dev/null)" if [[ -n $dirty ]]; then prompt_segment yellow black else |