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# When the Emacs SSH client, Tramp, connects to a remote host that uses Fish,
# it's important to keep the shell prompt simple so that Tramp can parse it.
if test "$TERM" = "dumb"
function fish_prompt
echo "\$ "
end
function fish_right_prompt; end
function fish_greeting; end
function fish_title; end
else
function fish_prompt
# My custom prompt.
#
# Design objectives:
# - max-length <= 80 characters
# - minimal
# - no dependencies (well, you know what I mean)
#
# Components
# - ssh connection
# - user
# - host
# - git repo
# - git branch
# - lambda character as prompt
# Cache status before we overwrite it.
set -l last_status $status
# Colors
set -l color_inactive (set_color red --bold)
set -l color_active (set_color green --bold)
set -l color_normal (set_color normal)
# SSH information
if set -q SSH_CLIENT; or set -q SSH_TTY
echo -en "$color_active \bssh ✓ [$color_normal$USER@"(hostname)"$color_active]$color_normal"
else
echo -en "$color_inactive \bssh ✗ [$color_normal$USER@"(hostname)"$color_inactive]$color_normal"
end
# Separator
echo -n " "
# Git information
set -l git_repo (git rev-parse --show-toplevel 2>/dev/null)
set -l git_status $status
set -l dir_parent (basename (realpath ..))
set -l dir_current (basename (realpath .))
if test $git_status -eq 0
set -l git_repo_name (basename (git rev-parse --show-toplevel))
set -l git_branch (git branch 2>/dev/null | grep '^\*' | cut -d' ' -f2-)
echo -en "$color_active \bgit ✓ [$color_normal$git_branch$color_active|$color_normal$git_repo_name$color_active|$color_normal$dir_parent/$dir_current$color_active]$color_normal"
else
echo -en "$color_inactive \bgit ✗ [$color_normal$dir_parent/$dir_current$color_inactive]$color_normal"
end
# Newline
echo
# Handle root vs non-root
if [ "$USER" = "root" ]
set -g prompt_sigil "#"
else
set -g prompt_sigil "λ"
end
# TODO(wpcarro): For root directories like /tmp, there will not be a parent
# directory. Support these directories.
set -l time (date +"%T")
if test $last_status -eq 0
set -l color_prompt (set_color white --bold)
echo -n "$time$color_prompt $prompt_sigil$color_normal "
else
set -l color_prompt (set_color red --bold)
echo -n "$time$color_prompt $prompt_sigil$color_normal "
end
end
function fish_right_prompt; end
function fish_greeting; end
function fish_title; end
end
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