zsh/lib/prompt.zsh

   1 # Setup the prompt with pretty colors
   2 setopt prompt_subst
   3 autoload colors; colors;
   4
   5 hostcolor=green
   6 [[ $(hostname) == "tardis" ]]  && hostcolor=red
   7
   8 precmd() {
   9   PROMPT='%T $(virtualenv_prompt)%n@%{$fg[$hostcolor]%}%m%(1j. $fg_bold[white]↵%{$fg_bold[red]%}%j.)%{$reset_color%}%-0>..>$(git_prompt_status)%>>
  10 %(?..%{$fg_bold[white]%}%?)%{$reset_color%}$(vi_prompt_info)%{%(!.$fg[red]❰.$fg[green]❱)%1G%} '
  11   RPROMPT='%{$fg[green]%}%~%{$reset_color%}'
  12 }
  13
  14 vi_prompt_info() {
  15   local vicmd="$fg_bold[green]❰$reset_color%1G"
  16   local viins="$fg_bold[blue]❱$reset_color%1G"
  17   local map=${KEYMAP:-viins}
  18   printf '%s' "%{${${map/vicmd/$vicmd}/(main|viins)/$viins}%}"
  19 }
  20
  21 function zle-line-init zle-line-finish zle-keymap-select {
  22   zle reset-prompt
  23   zle -R
  24 }
  25
  26 # zle -N zle-line-init
  27 # zle -N zle-line-finish
  28 zle -N zle-keymap-select
  29
  30 # reset zle on resize
  31 TRAPWINCH() {
  32   zle && { zle reset-prompt; zle -R  }
  33 }
  34
  35 # Get the status of the working tree
  36 git_prompt_status() {
  37   if ! git rev-parse --is-inside-work-tree &>/dev/null; then
  38     return
  39   fi
  40   local branch ahead behind
  41   local added deleted modified renamed unmerged untracked dirty
  42   # Use porcelain status for easy parsing.
  43   local status_cmd="git status --porcelain -b"
  44
  45   # Get current status.
  46   while IFS=$'\n' read line; do
  47     if [[ "$line" == \#\#\ * ]]; then
  48       [[ "$line" =~ '## (.*?)(\.\.\.|$)' ]] && branch=$match[1]
  49       [[ "$line" =~ 'ahead ([0-9]+)'  ]]  && ahead=$match[1]
  50       [[ "$line" =~ 'behind ([0-9]+)'  ]] && behind=$match[1]
  51     else
  52       # Count added, deleted, modified, renamed, unmerged, untracked, dirty.
  53       # T (type change) is undocumented, see http://git.io/FnpMGw.
  54       # index
  55       [[ "$line" == M[\ MTD]\ * ]]      && (( updated++ ))
  56       [[ "$line" == [AC][\ MTD]\ * ]]   && (( added++ ))
  57       [[ "$line" == D[\ MT]\ * ]]       && (( deleted++ ))
  58       [[ "$line" == R[\ MTD]\ * ]]      && (( renamed++ ))
  59
  60       # work tree
  61       [[ "$line" == [\ MARCT]M\ * ]]    && (( modified++ ))
  62       [[ "$line" == [\ MARCT]D\ * ]]    && (( deleted_wt++ ))
  63       [[ "$line" == \?\?\ * ]]          && (( untracked++ ))
  64
  65       # morge conflicts
  66       [[ "$line" == (AA|DD|U?|?U)\ * ]] && (( unmerged++ ))
  67     fi
  68   done < <(${(z)status_cmd} 2> /dev/null)
  69
  70   local git_status=" %{$fg[yellow]%}"
  71
  72   # Format branch
  73   if [[ -n $branch ]]; then
  74     git_status+="$branch"
  75   else
  76     git_status+="$(git rev-parse --short HEAD 2> /dev/null)"
  77     [[ $? -ne 0 ]] && return
  78   fi
  79
  80   # Format upstream
  81   local upstream_str
  82   (( ahead  > 0 )) && upstream_str+="%{$fg[blue]%} >$ahead"
  83   (( behind > 0 )) && upstream_str+="%{$fg[blue]%} <$behind"
  84   git_status+="$upstream_str"
  85
  86   # Format stashed
  87   stashed=$(git stash list | wc -l)
  88   if (( stashed > 0 )) then
  89     stashed_str+="%{$fg_bold[cyan]%} ⋎$stashed%{$reset_color%}"
  90   fi
  91   git_status+="$stashed_str"
  92
  93   # Format index
  94   local index_str
  95   (( updated > 0 )) && index_str+="%{$fg[green]%} *$updated"
  96   (( added   > 0 )) && index_str+="%{$fg[green]%} +$added"
  97   (( deleted > 0 )) && index_str+="%{$fg[green]%} -$deleted"
  98   (( renamed > 0 )) && index_str+="%{$fg[green]%} ≈$renamed"
  99   git_status+="$index_str"
 100
 101   # Format working tree
 102   local wt_str
 103   (( modified   > 0 )) && wt_str+="%{$fg[red]%} *$modified"
 104   (( deleted_wt > 0 )) && wt_str+="%{$fg[red]%} -$deleted_wt"
 105   (( untracked  > 0 )) && wt_str+="%{$fg[red]%} +$untracked"
 106   (( unmerged   > 0 )) && wt_str+="%{$fg[magenta]%} ♒$unmerged"
 107   git_status+="$wt_str"
 108
 109   git_status+="%{$reset_color%}"
 110
 111   echo $git_status
 112 }
 113
 114 function virtualenv_prompt() {
 115   if [[ -z $VIRTUAL_ENV ]] then
 116     echo ""
 117   else
 118     echo "(${VIRTUAL_ENV##*/}) "
 119   fi
 120 }
 121
 122 function print_if_fits() {
 123   local zero length
 124
 125   zero='%([BSUbfksu]|([FB]|){*})'
 126   length=${#${(S%%)1//$~zero/}}
 127   echo "%-$length(l.$1.)"
 128 }