dotfiles/.config/fish/functions/fish_prompt.fish

85 lines
2.9 KiB
Fish

function fish_prompt --description 'Write out the prompt'
set -l last_status $status
set -l suffix
set -l user_prefix
set -l git_branch
set -l jobs_num
set -l exit_code
# Set exit code, based on last command status
if test $last_status -ne 0
set exit_code '<' (set_color $fish_color_status) $last_status (set_color normal) '> '
end
# Set jobs num, based on exit code of jobs command
if jobs >/dev/null
set -l jobs_out (jobs -c)
set jobs_num '[' (set_color grey) (count $jobs_out) (set_color normal) '] '
end
# Set cwd color and prompt suffix, based on current user and fish_bind_mode.
set suffix '>'
if test $fish_key_bindings = fish_vi_key_bindings
switch "$fish_bind_mode"
case insert
set suffix (set_color brblue) $suffix (set_color normal)
case default
set suffix '<'
case visual
set suffix (set_color bryellow) v (set_color normal)
end
end
# Set user_prefix, based on whether or not inside of ssh session.
if test -n "$SSH_CLIENT"
set user_prefix $USER @ (prompt_hostname) ' '
end
# Show current git branch, based on git commands only.
if set -l git_status (git status 2>/dev/null)
set -l branch_color green
if string match 'Changes not staged for commit:' $git_status >/dev/null
or string match 'Untracked files:' $git_status >/dev/null
set branch_color red
else if string match 'Changes to be committed:' $git_status >/dev/null
set branch_color yellow
end
set -l cur_branch (git branch --show-current)
if test -z "$cur_branch"
set cur_branch detached
end
if test -n "$cur_branch"
set -l cur_branch_len (string length $cur_branch)
if test $cur_branch_len -gt 21
set -l sub_str (string sub -l 18 $cur_branch)
set cur_branch "$sub_str..."
end
end
if string match 'Your branch is ahead of*' $git_status >/dev/null
set cur_branch $cur_branch \u21A5
else if string match 'Your branch is behind*' $git_status >/dev/null
set cur_branch $cur_branch \u21A7
end
set git_branch ' on ' (set_color $branch_color) $cur_branch (set_color normal)
end
# Combine all prompt variables
set -l cwd (set_color $fish_color_cwd) (prompt_pwd) (set_color normal)
set -l top_prompt $cwd $git_branch
set -l bottom_prompt $user_prefix $jobs_num $exit_code $suffix ' '
# Decide whether to insert newline, based on whether the top prompt is only equal to cwd
if test "$top_prompt" = "$cwd"
set bottom_prompt ' ' $bottom_prompt
else
set bottom_prompt \n $bottom_prompt
end
echo -n -s $top_prompt
echo -n -s $bottom_prompt
end