oh-my-fish/themes/bobthefish/fish_prompt.fish
2014-11-20 14:02:02 -08:00

363 lines
11 KiB
Fish

# name: bobthefish
#
# bobthefish is a Powerline-style, Git-aware fish theme optimized for awesome.
#
# You will probably need a Powerline-patched font for this to work:
#
# https://powerline.readthedocs.org/en/latest/fontpatching.html
#
# I recommend picking one of these:
#
# https://github.com/Lokaltog/powerline-fonts
#
# You can override some default options in your config.fish:
#
# set -g theme_display_user yes
# set -g default_user your_normal_user
set -g __bobthefish_current_bg NONE
# Powerline glyphs
set __bobthefish_branch_glyph \uE0A0
set __bobthefish_ln_glyph \uE0A1
set __bobthefish_padlock_glyph \uE0A2
set __bobthefish_right_black_arrow_glyph \uE0B0
set __bobthefish_right_arrow_glyph \uE0B1
set __bobthefish_left_black_arrow_glyph \uE0B2
set __bobthefish_left_arrow_glyph \uE0B3
# Additional glyphs
set __bobthefish_detached_glyph \u27A6
set __bobthefish_nonzero_exit_glyph '! '
set __bobthefish_superuser_glyph '$ '
set __bobthefish_bg_job_glyph '% '
set __bobthefish_hg_glyph \u263F
# Python glyphs
set __bobthefish_superscript_glyph \u00B9 \u00B2 \u00B3
set __bobthefish_virtualenv_glyph \u25F0
set __bobthefish_pypy_glyph \u1D56
# Colors
set __bobthefish_lt_green addc10
set __bobthefish_med_green 189303
set __bobthefish_dk_green 0c4801
set __bobthefish_lt_red C99
set __bobthefish_med_red ce000f
set __bobthefish_dk_red 600
set __bobthefish_slate_blue 255e87
set __bobthefish_lt_orange f6b117
set __bobthefish_dk_orange 3a2a03
set __bobthefish_dk_grey 333
set __bobthefish_med_grey 999
set __bobthefish_lt_grey ccc
set __bobthefish_dk_brown 4d2600
set __bobthefish_med_brown 803F00
set __bobthefish_lt_brown BF5E00
set __bobthefish_dk_blue 1E2933
set __bobthefish_med_blue 275379
set __bobthefish_lt_blue 326D9E
# ===========================
# Helper methods
# ===========================
function __bobthefish_in_git -d 'Check whether pwd is inside a git repo'
command which git > /dev/null 2>&1; and command git rev-parse --is-inside-work-tree >/dev/null 2>&1
end
function __bobthefish_in_hg -d 'Check whether pwd is inside a hg repo'
command which hg > /dev/null 2>&1; and command hg stat > /dev/null 2>&1
end
function __bobthefish_git_branch -d 'Get the current git branch (or commitish)'
set -l ref (command git symbolic-ref HEAD 2> /dev/null)
if [ $status -gt 0 ]
set -l branch (command git show-ref --head -s --abbrev |head -n1 2> /dev/null)
set ref "$__bobthefish_detached_glyph $branch"
end
echo $ref | sed "s-refs/heads/-$__bobthefish_branch_glyph -"
end
function __bobthefish_hg_branch -d 'Get the current hg branch'
set -l branch (hg branch ^/dev/null)
set -l book " @ "(hg book | grep \* | cut -d\ -f3)
echo "$__bobthefish_branch_glyph $branch$book"
end
function __bobthefish_pretty_parent -d 'Print a parent directory, shortened to fit the prompt'
echo -n (dirname $argv[1]) | sed -e 's|/private||' -e "s|^$HOME|~|" -e 's-/\(\.\{0,1\}[^/]\)\([^/]*\)-/\1-g' -e 's|/$||'
end
function __bobthefish_git_project_dir -d 'Print the current git project base directory'
command git rev-parse --show-toplevel 2>/dev/null
end
function __bobthefish_hg_project_dir -d 'Print the current hg project base directory'
command hg root 2>/dev/null
end
function __bobthefish_project_pwd -d 'Print the working directory relative to project root'
echo "$PWD" | sed -e "s*$argv[1]**g" -e 's*^/**'
end
# ===========================
# Segment functions
# ===========================
function __bobthefish_start_segment -d 'Start a prompt segment'
set_color -b $argv[1]
set_color $argv[2]
if [ "$__bobthefish_current_bg" = 'NONE' ]
# If there's no background, just start one
echo -n ' '
else
# If there's already a background...
if [ "$argv[1]" = "$__bobthefish_current_bg" ]
# and it's the same color, draw a separator
echo -n "$__bobthefish_right_arrow_glyph "
else
# otherwise, draw the end of the previous segment and the start of the next
set_color $__bobthefish_current_bg
echo -n "$__bobthefish_right_black_arrow_glyph "
set_color $argv[2]
end
end
set __bobthefish_current_bg $argv[1]
end
function __bobthefish_path_segment -d 'Display a shortened form of a directory'
if test -w "$argv[1]"
__bobthefish_start_segment $__bobthefish_dk_grey $__bobthefish_med_grey
else
__bobthefish_start_segment $__bobthefish_dk_red $__bobthefish_lt_red
end
set -l directory
set -l parent
switch "$argv[1]"
case /
set directory '/'
case "$HOME"
set directory '~'
case '*'
set parent (__bobthefish_pretty_parent "$argv[1]")
set parent "$parent/"
set directory (basename "$argv[1]")
end
test "$parent"; and echo -n -s "$parent"
set_color fff --bold
echo -n "$directory "
set_color normal
end
function __bobthefish_finish_segments -d 'Close open prompt segments'
if [ -n $__bobthefish_current_bg -a $__bobthefish_current_bg != 'NONE' ]
set_color -b normal
set_color $__bobthefish_current_bg
echo -n "$__bobthefish_right_black_arrow_glyph "
set_color normal
end
set -g __bobthefish_current_bg NONE
end
# ===========================
# Theme components
# ===========================
function __bobthefish_prompt_status -d 'Display symbols for a non zero exit status, root and background jobs'
set -l nonzero
set -l superuser
set -l bg_jobs
# Last exit was nonzero
if [ $RETVAL -ne 0 ]
set nonzero $__bobthefish_nonzero_exit_glyph
end
# if superuser (uid == 0)
set -l uid (id -u $USER)
if [ $uid -eq 0 ]
set superuser $__bobthefish_superuser_glyph
end
# Jobs display
if [ (jobs -l | wc -l) -gt 0 ]
set bg_jobs $__bobthefish_bg_job_glyph
end
set -l status_flags "$nonzero$superuser$bg_jobs"
if test "$nonzero" -o "$superuser" -o "$bg_jobs"
__bobthefish_start_segment fff 000
if [ "$nonzero" ]
set_color $__bobthefish_med_red --bold
echo -n $__bobthefish_nonzero_exit_glyph
end
if [ "$superuser" ]
set_color $__bobthefish_med_green --bold
echo -n $__bobthefish_superuser_glyph
end
if [ "$bg_jobs" ]
set_color $__bobthefish_slate_blue --bold
echo -n $__bobthefish_bg_job_glyph
end
set_color normal
end
end
function __bobthefish_prompt_user -d 'Display actual user if different from $default_user'
if [ "$theme_display_user" = 'yes' ]
if [ "$USER" != "$default_user" -o -n "$SSH_CLIENT" ]
__bobthefish_start_segment $__bobthefish_lt_grey $__bobthefish_slate_blue
echo -n -s (whoami) '@' (hostname | cut -d . -f 1) ' '
end
end
end
function __bobthefish_prompt_hg -d 'Display the actual hg state'
set -l dirty (command hg stat; or echo -n '*')
set -l flags "$dirty"
test "$flags"; and set flags ""
set -l flag_bg $__bobthefish_lt_green
set -l flag_fg $__bobthefish_dk_green
if test "$dirty"
set flag_bg $__bobthefish_med_red
set flag_fg fff
end
__bobthefish_path_segment (__bobthefish_hg_project_dir)
__bobthefish_start_segment $flag_bg $flag_fg
echo -n -s $__bobthefish_hg_glyph ' '
__bobthefish_start_segment $flag_bg $flag_fg
set_color $flag_fg --bold
echo -n -s (__bobthefish_hg_branch) $flags ' '
set_color normal
set -l project_pwd (__bobthefish_project_pwd (__bobthefish_hg_project_dir))
if test "$project_pwd"
if test -w "$PWD"
__bobthefish_start_segment 333 999
else
__bobthefish_start_segment $__bobthefish_med_red $__bobthefish_lt_red
end
echo -n -s $project_pwd ' '
end
end
# TODO: clean up the fugly $ahead business
function __bobthefish_prompt_git -d 'Display the actual git state'
set -l dirty (command git diff --no-ext-diff --quiet --exit-code; or echo -n '*')
set -l staged (command git diff --cached --no-ext-diff --quiet --exit-code; or echo -n '~')
set -l stashed (command git rev-parse --verify refs/stash > /dev/null 2>&1; and echo -n '$')
set -l ahead (command git branch -v 2> /dev/null | grep -Eo '^\* [^ ]* *[^ ]* *\[[^]]*\]' | grep -Eo '\[[^]]*\]$' | awk 'ORS="";/ahead/ {print "+"} /behind/ {print "-"}' | sed -e 's/+-/±/')
set -l new (command git ls-files --other --exclude-standard);
test "$new"; and set new '…'
set -l flags "$dirty$staged$stashed$ahead$new"
test "$flags"; and set flags " $flags"
set -l flag_bg $__bobthefish_lt_green
set -l flag_fg $__bobthefish_dk_green
if test "$dirty" -o "$staged"
set flag_bg $__bobthefish_med_red
set flag_fg fff
else
if test "$stashed"
set flag_bg $__bobthefish_lt_orange
set flag_fg $__bobthefish_dk_orange
end
end
__bobthefish_path_segment (__bobthefish_git_project_dir)
__bobthefish_start_segment $flag_bg $flag_fg
set_color $flag_fg --bold
echo -n -s (__bobthefish_git_branch) $flags ' '
set_color normal
set -l project_pwd (__bobthefish_project_pwd (__bobthefish_git_project_dir))
if test "$project_pwd"
if test -w "$PWD"
__bobthefish_start_segment 333 999
else
__bobthefish_start_segment $__bobthefish_med_red $__bobthefish_lt_red
end
echo -n -s $project_pwd ' '
end
end
function __bobthefish_prompt_dir -d 'Display a shortened form of the current directory'
__bobthefish_path_segment "$PWD"
end
function __bobthefish_in_virtualfish_virtualenv
set -q VIRTUAL_ENV
end
function __bobthefish_virtualenv_python_version -d 'Get current python version'
switch (readlink (which python))
case python2
echo $__bobthefish_superscript_glyph[2]
case python3
echo $__bobthefish_superscript_glyph[3]
case pypy
echo $__bobthefish_pypy_glyph
end
end
function __bobthefish_virtualenv -d 'Get the current virtualenv'
echo $__bobthefish_virtualenv_glyph(__bobthefish_virtualenv_python_version) (basename "$VIRTUAL_ENV")
end
function __bobthefish_prompt_virtualfish -d "Display activated virtual environment (only for virtualfish, virtualenv's activate.fish changes prompt by itself)"
set flag_bg $__bobthefish_lt_blue
set flag_fg $__bobthefish_dk_blue
__bobthefish_start_segment $flag_bg $flag_fg
set_color $flag_fg --bold
echo -n -s (__bobthefish_virtualenv) $flags ' '
set_color normal
end
# ===========================
# Apply theme
# ===========================
function fish_prompt -d 'bobthefish, a fish theme optimized for awesome'
set -g RETVAL $status
__bobthefish_prompt_status
__bobthefish_prompt_user
if __bobthefish_in_virtualfish_virtualenv
__bobthefish_prompt_virtualfish
end
if __bobthefish_in_git # TODO: do this right.
__bobthefish_prompt_git # if something is in both git and hg, check the length of
else if __bobthefish_in_hg # __bobthefish_git_project_dir vs __bobthefish_hg_project_dir
__bobthefish_prompt_hg # and pick the longer of the two.
else
__bobthefish_prompt_dir
end
__bobthefish_finish_segments
end