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308 lines
9.0 KiB
308 lines
9.0 KiB
# name: bobthefish
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#
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# bobthefish is a Powerline-style, Git-aware fish theme optimized for awesome.
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#
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# You will probably need a Powerline-patched font for this to work:
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#
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# https://powerline.readthedocs.org/en/latest/fontpatching.html
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#
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# I recommend picking one of these:
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#
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# https://github.com/Lokaltog/powerline-fonts
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#
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# You can override some default options in your config.fish:
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#
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# set -g theme_display_user yes
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# set -g default_user your_normal_user
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set -g __bobthefish_current_bg NONE
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# Powerline glyphs
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set __bobthefish_branch_glyph \uE0A0
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set __bobthefish_ln_glyph \uE0A1
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set __bobthefish_padlock_glyph \uE0A2
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set __bobthefish_right_black_arrow_glyph \uE0B0
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set __bobthefish_right_arrow_glyph \uE0B1
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set __bobthefish_left_black_arrow_glyph \uE0B2
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set __bobthefish_left_arrow_glyph \uE0B3
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# Additional glyphs
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set __bobthefish_detached_glyph \u27A6
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set __bobthefish_nonzero_exit_glyph '! '
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set __bobthefish_superuser_glyph '$ '
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set __bobthefish_bg_job_glyph '% '
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# Python glyphs
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set __bobthefish_superscript \u00B1 \u00B2 \u00B3
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set __bobthefish_virtualenv_glyph \u25F0
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set __bobthefish_pypy \u1D56
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# Colors
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set __bobthefish_lt_green addc10
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set __bobthefish_med_green 189303
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set __bobthefish_dk_green 0c4801
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set __bobthefish_lt_red C99
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set __bobthefish_med_red ce000f
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set __bobthefish_dk_red 600
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set __bobthefish_slate_blue 255e87
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set __bobthefish_lt_orange f6b117
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set __bobthefish_dk_orange 3a2a03
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set __bobthefish_dk_grey 333
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set __bobthefish_med_grey 999
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set __bobthefish_lt_grey ccc
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set __bobthefish_dk_brown 4d2600
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set __bobthefish_med_brown 803F00
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set __bobthefish_lt_brown BF5E00
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# ===========================
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# Helper methods
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# ===========================
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function __bobthefish_in_git -d 'Check whether pwd is inside a git repo'
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command git rev-parse --is-inside-work-tree >/dev/null 2>&1
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end
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function __bobthefish_git_branch -d 'Get the current git branch (or commitish)'
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set -l ref (command git symbolic-ref HEAD 2> /dev/null)
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if [ $status -gt 0 ]
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set -l branch (command git show-ref --head -s --abbrev |head -n1 2> /dev/null)
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set ref "$__bobthefish_detached_glyph $branch"
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end
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echo $ref | sed "s-refs/heads/-$__bobthefish_branch_glyph -"
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end
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function __bobthefish_pretty_parent -d 'Print a parent directory, shortened to fit the prompt'
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echo -n (dirname $argv[1]) | sed -e 's|/private||' -e "s|^$HOME|~|" -e 's-/\(\.\{0,1\}[^/]\)\([^/]*\)-/\1-g' -e 's|/$||'
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end
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function __bobthefish_project_dir -d 'Print the current git project base directory'
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command git rev-parse --show-toplevel 2>/dev/null
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end
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function __bobthefish_project_pwd -d 'Print the working directory relative to project root'
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set -l base_dir (__bobthefish_project_dir)
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echo "$PWD" | sed -e "s*$base_dir**g" -e 's*^/**'
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end
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# ===========================
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# Segment functions
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# ===========================
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function __bobthefish_start_segment -d 'Start a prompt segment'
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set_color -b $argv[1]
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set_color $argv[2]
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if [ "$__bobthefish_current_bg" = 'NONE' ]
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# If there's no background, just start one
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echo -n ' '
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else
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# If there's already a background...
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if [ "$argv[1]" = "$__bobthefish_current_bg" ]
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# and it's the same color, draw a separator
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echo -n "$__bobthefish_right_arrow_glyph "
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else
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# otherwise, draw the end of the previous segment and the start of the next
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set_color $__bobthefish_current_bg
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echo -n "$__bobthefish_right_black_arrow_glyph "
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set_color $argv[2]
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end
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end
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set __bobthefish_current_bg $argv[1]
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end
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function __bobthefish_path_segment -d 'Display a shortened form of a directory'
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if test -w "$argv[1]"
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__bobthefish_start_segment $__bobthefish_dk_grey $__bobthefish_med_grey
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else
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__bobthefish_start_segment $__bobthefish_dk_red $__bobthefish_lt_red
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end
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set -l directory
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set -l parent
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switch "$argv[1]"
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case /
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set directory '/'
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case "$HOME"
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set directory '~'
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case '*'
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set parent (__bobthefish_pretty_parent "$argv[1]")
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set parent "$parent/"
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set directory (basename "$argv[1]")
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end
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test "$parent"; and echo -n -s "$parent"
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set_color fff --bold
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echo -n "$directory "
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set_color normal
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end
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function __bobthefish_finish_segments -d 'Close open prompt segments'
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if [ -n $__bobthefish_current_bg -a $__bobthefish_current_bg != 'NONE' ]
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set_color -b normal
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set_color $__bobthefish_current_bg
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echo -n "$__bobthefish_right_black_arrow_glyph "
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set_color normal
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end
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set -g __bobthefish_current_bg NONE
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end
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# ===========================
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# Theme components
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# ===========================
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function __bobthefish_prompt_status -d 'Display symbols for a non zero exit status, root and background jobs'
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set -l nonzero
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set -l superuser
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set -l bg_jobs
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# Last exit was nonzero
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if [ $RETVAL -ne 0 ]
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set nonzero $__bobthefish_nonzero_exit_glyph
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end
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# if superuser (uid == 0)
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set -l uid (id -u $USER)
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if [ $uid -eq 0 ]
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set superuser $__bobthefish_superuser_glyph
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end
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# Jobs display
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if [ (jobs -l | wc -l) -gt 0 ]
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set bg_jobs $__bobthefish_bg_job_glyph
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end
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set -l status_flags "$nonzero$superuser$bg_jobs"
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if test "$nonzero" -o "$superuser" -o "$bg_jobs"
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__bobthefish_start_segment fff 000
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if [ "$nonzero" ]
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set_color $__bobthefish_med_red --bold
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echo -n $__bobthefish_nonzero_exit_glyph
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end
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if [ "$superuser" ]
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set_color $__bobthefish_med_green --bold
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echo -n $__bobthefish_superuser_glyph
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end
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if [ "$bg_jobs" ]
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set_color $__bobthefish_slate_blue --bold
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echo -n $__bobthefish_bg_job_glyph
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end
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set_color normal
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end
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end
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function __bobthefish_prompt_user -d 'Display actual user if different from $default_user'
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if [ "$theme_display_user" = 'yes' ]
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if [ "$USER" != "$default_user" -o -n "$SSH_CLIENT" ]
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__bobthefish_start_segment $__bobthefish_lt_grey $__bobthefish_slate_blue
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echo -n -s (whoami) '@' (hostname | cut -d . -f 1) ' '
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end
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end
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end
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# TODO: clean up the fugly $ahead business
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function __bobthefish_prompt_git -d 'Display the actual git state'
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set -l dirty (command git diff --no-ext-diff --quiet --exit-code; or echo -n '*')
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set -l staged (command git diff --cached --no-ext-diff --quiet --exit-code; or echo -n '~')
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set -l stashed (command git rev-parse --verify refs/stash > /dev/null 2>&1; and echo -n '$')
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set -l ahead (command git branch -v 2> /dev/null | grep -Eo '^\* [^ ]* *[^ ]* *\[[^]]*\]' | grep -Eo '\[[^]]*\]$' | awk 'ORS="";/ahead/ {print "+"} /behind/ {print "-"}' | sed -e 's/+-/±/')
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set -l new (command git ls-files --other --exclude-standard);
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test "$new"; and set new '…'
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set -l flags "$dirty$staged$stashed$ahead$new"
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test "$flags"; and set flags " $flags"
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set -l flag_bg $__bobthefish_lt_green
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set -l flag_fg $__bobthefish_dk_green
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if test "$dirty" -o "$staged"
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set flag_bg $__bobthefish_med_red
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set flag_fg fff
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else
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if test "$stashed"
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set flag_bg $__bobthefish_lt_orange
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set flag_fg $__bobthefish_dk_orange
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end
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end
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__bobthefish_path_segment (__bobthefish_project_dir)
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__bobthefish_start_segment $flag_bg $flag_fg
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set_color $flag_fg --bold
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echo -n -s (__bobthefish_git_branch) $flags ' '
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set_color normal
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set -l project_pwd (__bobthefish_project_pwd)
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if test "$project_pwd"
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if test -w "$PWD"
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__bobthefish_start_segment 333 999
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else
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__bobthefish_start_segment $__bobthefish_med_red $__bobthefish_lt_red
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end
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echo -n -s $project_pwd ' '
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end
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end
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function __bobthefish_prompt_dir -d 'Display a shortened form of the current directory'
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__bobthefish_path_segment "$PWD"
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end
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function __bobthefish_in_virtualfish_virtualenv
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set -q VIRTUAL_ENV
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end
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function __bobthefish_virtualenv_python_version -d 'Get current python version'
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switch (readlink (which python))
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case python2
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echo $__bobthefish_superscript[2]
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case python3
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echo $__bobthefish_superscript[3]
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case pypy
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echo $__bobthefish_pypy
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end
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end
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function __bobthefish_virtualenv -d 'Get the current virtualenv'
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echo $__bobthefish_virtualenv_glyph(__bobthefish_virtualenv_python_version) (basename "$VIRTUAL_ENV")
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end
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function __bobthefish_promt_virtualfish -d "Display activated virtual environment (only for virtualfish, virtualenv's activate.fish changes promt by itself)"
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set flag_bg $__bobthefish_lt_brown
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set flag_fg $__bobthefish_dk_brown
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__bobthefish_start_segment $flag_bg $flag_fg
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set_color $flag_fg --bold
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echo -n -s (__bobthefish_virtualenv) $flags ' '
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set_color normal
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end
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# ===========================
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# Apply theme
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# ===========================
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function fish_prompt -d 'bobthefish, a fish theme optimized for awesome'
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set -g RETVAL $status
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__bobthefish_prompt_status
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__bobthefish_prompt_user
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if __bobthefish_in_git
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__bobthefish_prompt_git
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else
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__bobthefish_prompt_dir
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end
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if __bobthefish_in_virtualfish_virtualenv
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__bobthefish_promt_virtualfish
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end
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__bobthefish_finish_segments
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end
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