其他-To get a prompt which indicates Git-branch in Zsh

ko-dos 2010-03-20 09:32:51

__git_ps1 is from git-completion.bash. In zsh you probably have to provide your own function to determine the current directories git branch. There are quite a few blog posts about a git prompt for zsh.

You just need:

a function to provide the branch name
enable prompt (command) substitution
add the function to your prompt

For example

git_prompt() {
 ref=$(git symbolic-ref HEAD | cut -d'/' -f3)
 echo $ref
}
setopt prompt_subst
PS1=$(git_prompt)%#
autoload -U promptinit
promptinit

Update: use the zsh vcs_info module instead of git_prompt()

setopt prompt_subst
autoload -Uz vcs_info
zstyle ':vcs_info:*' actionformats \
    '%F{5}(%f%s%F{5})%F{3}-%F{5}[%F{2}%b%F{3}|%F{1}%a%F{5}]%f '
zstyle ':vcs_info:*' formats       \
    '%F{5}(%f%s%F{5})%F{3}-%F{5}[%F{2}%b%F{5}]%f '
zstyle ':vcs_info:(sv[nk]|bzr):*' branchformat '%b%F{1}:%F{3}%r'

zstyle ':vcs_info:*' enable git cvs svn

# or use pre_cmd, see man zshcontrib
vcs_info_wrapper() {
  vcs_info
  if [ -n "$vcs_info_msg_0_" ]; then
    echo "%{$fg[grey]%}${vcs_info_msg_0_}%{$reset_color%}$del"
  fi
}
RPROMPT=$'$(vcs_info_wrapper)'

drizzt 2013-01-24 17:40:04

git_prompt is wrong, if you have a branch with / it does not work. Use cut -d'/' -f3- instead.

balki 2013-02-25 12:06:14

Thanks!, this works. Can you please explain what those cryptic zstyle commands do?

ntc2 2013-05-09 02:48:34

@balki The %F{n} enable ANSI color n for foreground, and %f disables foreground color. E.g., the formats format %F{5}(%f%s%F{5})%F{3}-%F{5}[%F{2}%b%F{3}]%f becomes (%s)-[%b] if you ignore the colors. The %s gets replaced by the vc system (e.g. git) and the %b gets replaced by the current branch.

ntc2 2013-05-09 02:51:43

@balki The (sv[nk]|bzr) subpattern on the branchformat restricts it to svn, svk, and bzr. It means that those systems should use branch:revision instead of the default branch. Because of the enable line, bzr is not supported, so this bzr restriction is "dead code". The first three lines are copied verbatim from the ZSH docs, but the last line was added by someone else, which probably explains the dead code.

ntc2 2013-05-09 02:58:16

@balki The actionformats becomes (%s)-[%b|%a] ignoring colors. This format is used during special actions, with %a describing the action. This is the most useful feature IMHO: e.g. for git it tells when you are in the middle of a rebase (which I often forget about while trying to resolve merge conflicts).

To get a prompt which indicates Git-branch in Zsh

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