# based off of the git-prompt script that ships with git # # Written by Kevin Ballard # Updated by Brian Gernhardt # # This is heavily based off of the git-prompt.bash script that ships with # git, which is Copyright (C) 2006,2007 Shawn O. Pearce . # The act of porting the code, along with any new code, are Copyright (C) 2012 # Kevin Ballard . # # By virtue of being based on the git-prompt.bash script, this script is # distributed under the GNU General Public License, version 2.0. # # This script vends a function __fish_git_prompt which takes a format string, # exactly how the bash script works. This can be used in your fish_prompt # function. # # The behavior of __fish_git_prompt is very heavily based off of the bash # script's __git_ps1 function. As such, usage and customization is very # similar, although some extra flexibility is provided in this script. # Due to differences between bash and fish, the PROMPT_COMMAND style where # passing two or three arguments causes the fucnction to set PS1 is not # supported. # # The argument to __fish_git_prompt will be displayed only if you are currently # in a git repository. The %s token will be the name of the branch. # # In addition, if you set __fish_git_prompt_showdirtystate to a nonempty value, # unstaged (*) and staged (+) changes will be shown next to the branch name. # You can configure this per-repository with the bash.showDirtyState variable, # which defaults to true once __fish_git_prompt_showdirtystate is enabled. The # choice to leave the variable as 'bash' instead of renaming to 'fish' is done # to preserve compatibility with existing configured repositories. # # You can also see if currently something is stashed, by setting # __fish_git_prompt_showstashstate to a nonempty value. If something is # stashed, then a '$' will be shown next to the branch name. # # If you would like to see if there are untracked files, then you can set # __fish_git_prompt_showuntrackedfiles to a nonempty value. If there are # untracked files, then a '%' will be shown next to the branch name. # # If you would like to see the difference between HEAD and its upstream, set # __fish_git_prompt_showupstream to 'auto'. A "<" indicates you are behind, ">" # indicates you are ahead, "<>" indicates you have diverged and "=" indicates # that there is no difference. You can further control behavior by setting # __fish_git_prompt_showupstream to a space-separated list of values: # # verbose show number of commits head/behind (+/-) upstream # legacy don't use the '--count' option available in recent versions # of git-rev-list # git always compare HEAD to @{upstream} # svn always compare HEAD to your SVN upstream # # By default, __fish_git_prompt will compare HEAD to your SVN upstream if it # can find one, or @{upstream} otherwise. Once you have set # __fish_git_prompt_showupstream, you can override it on a per-repository basis # by setting the bash.showUpstream config variable. As before, this variable # remains named 'bash' to preserve compatibility. # # If you would like to see more information about the identity of commits # checked out as a detached HEAD, set __fish_git_prompt_describe_style to # one of the following values: # # contains relative to newer annotated tag (v1.6.3.2~35) # branch relative to newer tag or branch (master~4) # describe relative to older annotated tag (v1.6.3.1-13-gdd42c2f) # default exactly matching tag # # If you would like a colored hint about the current dirty state, set # __fish_git_prompt_showcolorhints to a nonempty value. The default colors are # based on the colored output of "git status -sb" # # This fish-compatible version of __fish_git_prompt includes some additional # features on top of the above-documented bash-compatible features: # # The color for each component of the prompt can specified using # __fish_git_prompt_color_, where is one of the following and the # values are specified as arguments to `set_color`. The variable # __fish_git_prompt_color is used for any component that does not have an # individual color set. # # prefix Anything before %s in the format string # suffix Anything after %s in the format string # bare Marker for a bare repository # merging Current operation (|MERGING, |REBASE, etc.) # branch Branch name # flags Optional flags (see below) # upstream Upstream name and flags (with showupstream) # # The following optional flags have both colors, as above, and custom # characters via __fish_git_prompt_char_. The default character is # shown in parenthesis. The default color for these flags can be also be set # via the __fish_git_prompt_color_flags variable. # # __fish_git_prompt_showdirtystate # dirtystate unstaged changes (*) # stagedstate staged changes (+) # invalidstate HEAD invalid (#, colored as stagedstate) # # __fish_git_prompt_showstashstate # stashstate stashed changes ($) # # __fish_git_prompt_showuntrackedfiles # untrackedfiles untracked files (%) # # __fish_git_prompt_showupstream (all colored as upstream) # upstream_equal Branch matches upstream (=) # upstream_behind Upstream has more commits (<) # upstream_ahead Branch has more commits (>) # upstream_diverged Upstream and branch have new commits (<>) # # Turning on __fish_git_prompt_showcolorhints changes the colors as follows to # more closely match the behavior in bash. Note that setting any of these # colors manually will override these defaults. # # branch Defaults to green # branch_detached New color, when head is detached, default red # dirtystate Defaults to red # stagedstate Defaults to green # flags Defaults to --bold blue set -g ___fish_git_prompt_status_order stagedstate invalidstate dirtystate untrackedfiles function __fish_git_prompt_show_upstream --description "Helper function for __fish_git_prompt" set -l show_upstream $__fish_git_prompt_showupstream set -l svn_prefix # For better SVN upstream information set -l informative set -l svn_url_pattern set -l count set -l upstream git set -l legacy set -l verbose set -l svn_remote # get some config options from git-config git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' ^/dev/null | tr '\0\n' '\n ' | while read -l key value switch $key case bash.showupstream set show_upstream $value test -n "$show_upstream"; or return case svn-remote.'*'.url set svn_remote $svn_remote $value # Avoid adding \| to the beginning to avoid needing #?? later if test -n "$svn_url_pattern" set svn_url_pattern $svn_url_pattern"\\|$value" else set svn_url_pattern $value end set upstream svn+git # default upstream is SVN if available, else git # Save the config key (without .url) for later use set -l remote_prefix (/bin/sh -c 'echo "${1%.url}"' -- $key) set svn_prefix $svn_prefix $remote_prefix end end # parse configuration variables for option in $show_upstream switch $option case git svn set upstream $option case verbose set verbose 1 case informative set informative 1 case legacy set legacy 1 end end # Find our upstream switch $upstream case git set upstream '@{upstream}' case svn\* # get the upstream from the 'git-svn-id: ...' in a commit message # (git-svn uses essentially the same procedure internally) set -l svn_upstream (git log --first-parent -1 --grep="^git-svn-id: \($svn_url_pattern\)" ^/dev/null) if test (count $svn_upstream) -ne 0 echo $svn_upstream[-1] | read -l _ svn_upstream _ set svn_upstream (/bin/sh -c 'echo "${1%@*}"' -- $svn_upstream) set -l cur_prefix for i in (seq (count $svn_remote)) set -l remote $svn_remote[$i] set -l mod_upstream (/bin/sh -c 'echo "${1#$2}"' -- $svn_upstream $remote) if test "$svn_upstream" != "$mod_upstream" # we found a valid remote set svn_upstream $mod_upstream set cur_prefix $svn_prefix[$i] break end end if test -z "$svn_upstream" # default branch name for checkouts with no layout: if test -n "$GIT_SVN_ID" set upstream $GIT_SVN_ID else set upstream git-svn end else set upstream (/bin/sh -c 'val=${1#/branches}; echo "${val#/}"' -- $svn_upstream) # Use fetch config to fix upstream set -l fetch_val (git config "$cur_prefix".fetch) if test -n "$fetch_val" set -l IFS : echo "$fetch_val" | read -l trunk pattern set upstream (/bin/sh -c 'echo "${1%/$2}"' -- $pattern $trunk)/$upstream end end else if test $upstream = svn+git set upstream '@{upstream}' end end # Find how many commits we are ahead/behind our upstream if test -z "$legacy" set count (git rev-list --count --left-right $upstream...HEAD ^/dev/null) else # produce equivalent output to --count for older versions of git set -l os set -l commits (git rev-list --left-right $upstream...HEAD ^/dev/null; set os $status) if test $os -eq 0 set -l behind (count (for arg in $commits; echo $arg; end | grep '^<')) set -l ahead (count (for arg in $commits; echo $arg; end | grep -v '^<')) set count "$behind $ahead" else set count end end # calculate the result if test -n "$verbose" echo $count | read -l behind ahead switch "$count" case '' # no upstream case "0 0" # equal to upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_equal" case "0 *" # ahead of upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_ahead$ahead" case "* 0" # behind upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_behind$behind" case '*' # diverged from upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_diverged$ahead-$behind" end else if test -n informative echo $count | read -l behind ahead switch "$count" case '' # no upstream case "0 0" # equal to upstream case "0 *" # ahead of upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_ahead$ahead" case "* 0" # behind upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_behind$behind" case '*' # diverged from upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_ahead$ahead$___fish_git_prompt_char_upstream_behind$behind" end else switch "$count" case '' # no upstream case "0 0" # equal to upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_equal" case "0 *" # ahead of upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_ahead$ahead" case "* 0" # behind upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_behind$behind" case '*' # diverged from upstream echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_diverged$ahead-$behind" end end end function __fish_git_prompt --description "Prompt function for Git" set -l git_dir (__fish_git_prompt_git_dir) test -n "$git_dir"; or return set -l rbc (__fish_git_prompt_operation_branch_bare $git_dir) set -l r $rbc[1] # current operation set -l b $rbc[2] # current branch set -l detached $rbc[3] set -l w #dirty working directory set -l i #staged changes set -l s #stashes set -l u #untracked set -l c $rbc[4] # bare repository set -l p #upstream set -l informative_status __fish_git_prompt_validate_chars if test "true" = (git rev-parse --is-inside-work-tree ^/dev/null) if test -n "$__fish_git_prompt_show_informative_status" set informative_status "|"(__fish_git_prompt_informative_status) else if test -n "$__fish_git_prompt_showdirtystate" set -l config (git config --bool bash.showDirtyState) if test "$config" != "false" set w (__fish_git_prompt_dirty) set i (__fish_git_prompt_staged) end end if test -n "$__fish_git_prompt_showstashstate" git rev-parse --verify refs/stash >/dev/null ^&1; and set s $___fish_git_prompt_char_stashstate end if test -n "$__fish_git_prompt_showuntrackedfiles" set -l files (git ls-files --others --exclude-standard) if test -n "$files" set u $___fish_git_prompt_char_untrackedfiles end end end if test -n "$__fish_git_prompt_showupstream" set p (__fish_git_prompt_show_upstream) end end __fish_git_prompt_validate_colors set -l branch_color $___fish_git_prompt_color_branch set -l branch_done $___fish_git_prompt_color_branch_done if test -n "$__fish_git_prompt_showcolorhints" if test $detached = yes set branch_color $___fish_git_prompt_color_branch_detached set branch_done $___fish_git_prompt_color_branch_detached_done end end if test -n "$w" set w "$___fish_git_prompt_color_dirtystate$w$___fish_git_prompt_color_dirtystate_done" end if test -n "$i" set i "$___fish_git_prompt_color_stagedstate$i$___fish_git_prompt_color_stagedstate_done" end if test -n "$s" set s "$___fish_git_prompt_color_stashstate$s$___fish_git_prompt_color_stashstate_done" end if test -n "$u" set u "$___fish_git_prompt_color_untrackedfiles$u$___fish_git_prompt_color_untrackedfiles_done" end set b (/bin/sh -c 'echo "${1#refs/heads/}"' -- $b) if test -n "$b" set b "$branch_color$b$branch_done" end if test -n "$c" set c "$___fish_git_prompt_color_bare$c$___fish_git_prompt_color_bare_done" end if test -n "$r" set r "$___fish_git_prompt_color_merging$r$___fish_git_prompt_color_merging_done" end if test -n "$p" set p "$___fish_git_prompt_color_upstream$p$___fish_git_prompt_color_upstream_done" end # Formatting set -l f "$w$i$s$u" if test -n "$f" set f " $f" end set -l format $argv[1] if test -z "$format" set format " (%s)" end printf "%s$format%s" "$___fish_git_prompt_color_prefix" "$___fish_git_prompt_color_prefix_done$c$b$f$r$p$informative_status$___fish_git_prompt_color_suffix" "$___git_ps_color_suffix_done" end ### helper functions function __fish_git_prompt_staged --description "__fish_git_prompt helper, tells whether or not the current branch has staged files" set -l staged if git rev-parse --quiet --verify HEAD >/dev/null git diff-index --cached --quiet HEAD --; or set staged $___fish_git_prompt_char_stagedstate else set staged $___fish_git_prompt_char_invalidstate end echo $staged end function __fish_git_prompt_dirty --description "__fish_git_prompt helper, tells whether or not the current branch has tracked, modified files" set -l dirty set -l os git diff --no-ext-diff --quiet --exit-code set os $status if test $os -ne 0 set dirty $___fish_git_prompt_char_dirtystate end echo $dirty end function __fish_git_prompt_informative_status set -l changedFiles (git diff --name-status | cut -c 1-2) set -l stagedFiles (git diff --staged --name-status | cut -c 1-2) set -l dirtystate (math (count $changedFiles) - (count (echo $changedFiles | grep "U"))) set -l invalidstate (count (echo $stagedFiles | grep "U")) set -l stagedstate (math (count $stagedFiles) - $invalidstate) set -l untrackedfiles (count (git ls-files --others --exclude-standard)) set -l info if [ (math $dirtystate + $invalidstate + $stagedstate + $untrackedfiles) = 0 ] set info $___fish_git_prompt_color_cleanstate$___fish_git_prompt_char_cleanstate$___fish_git_prompt_color_cleanstate_done else for i in $___fish_git_prompt_status_order if [ $$i != "0" ] set -l color_var ___fish_git_prompt_color_$i set -l color_done_var ___fish_git_prompt_color_$i set -l symbol_var ___fish_git_prompt_char_$i set -l color $$color_var set -l color_done $$color_done_var set -l symbol $$symbol_var set -l count if not set -q __fish_git_prompt_hide_$i set count $$i end set info "$info$color$symbol$count$color_done" end end end echo $info end # Keeping these together avoids many duplicated checks function __fish_git_prompt_operation_branch_bare --description "__fish_git_prompt helper, returns the current Git operation and branch" set -l git_dir $argv[1] set -l branch set -l operation set -l detached no set -l bare set -l os if test -f $git_dir/rebase-merge/interactive set operation "|REBASE-i" set branch (cat $git_dir/rebase-merge/head-name ^/dev/null) else if test -d $git_dir/rebase-merge set operation "|REBASE-m" set branch (cat $git_dir/rebase-merge/head-name ^/dev/null) else if test -d $git_dir/rebase-apply if test -f $git_dir/rebase-apply/rebasing set operation "|REBASE" else if test -f $git_dir/rebase-apply/applying set operation "|AM" else set operation "|AM/REBASE" end else if test -f $git_dir/MERGE_HEAD set operation "|MERGING" else if test -f $git_dir/CHERRY_PICK_HEAD set operation "|CHERRY-PICKING" else if test -f $git_dir/BISECT_LOG set operation "|BISECTING" end end if test -z "$branch" set branch (git symbolic-ref HEAD ^/dev/null; set os $status) if test $os -ne 0 set detached yes set branch (switch "$__fish_git_prompt_describe_style" case contains git describe --contains HEAD case branch git describe --contains --all HEAD case describe git describe HEAD case default '*' git describe --tags --exact-match HEAD end ^/dev/null; set os $status) if test $os -ne 0 set branch (cut -c1-7 $git_dir/HEAD ^/dev/null; set os $status) if test $os -ne 0 set branch unknown end end set branch "($branch)" end end if test "true" = (git rev-parse --is-inside-git-dir ^/dev/null) if test "true" = (git rev-parse --is-bare-repository ^/dev/null) set bare "BARE:" else # Let user know they're inside the git dir of a non-bare repo set branch "GIT_DIR!" end end echo $operation echo $branch echo $detached echo $bare end function __fish_git_prompt_git_dir --description "__fish_git_prompt helper, returns .git dir if any" echo (git rev-parse --git-dir ^/dev/null) end function __fish_git_prompt_set_char set -l user_variable_name "$argv[1]" set -l char $argv[2] set -l user_variable $$user_variable_name set -l variable _$user_variable_name set -l variable_done "$variable"_done if not set -q $variable set -g $variable (set -q $user_variable_name; and echo $user_variable; or echo $char) end end function __fish_git_prompt_validate_chars --description "__fish_git_prompt helper, checks char variables" __fish_git_prompt_set_char __fish_git_prompt_char_cleanstate '.' __fish_git_prompt_set_char __fish_git_prompt_char_dirtystate '*' __fish_git_prompt_set_char __fish_git_prompt_char_stagedstate '+' __fish_git_prompt_set_char __fish_git_prompt_char_invalidstate '#' __fish_git_prompt_set_char __fish_git_prompt_char_stashstate '$' __fish_git_prompt_set_char __fish_git_prompt_char_untrackedfiles '%' __fish_git_prompt_set_char __fish_git_prompt_char_upstream_equal '=' __fish_git_prompt_set_char __fish_git_prompt_char_upstream_behind '<' __fish_git_prompt_set_char __fish_git_prompt_char_upstream_ahead '>' __fish_git_prompt_set_char __fish_git_prompt_char_upstream_diverged '<>' __fish_git_prompt_set_char __fish_git_prompt_char_upstream_prefix ' ' end function __fish_git_prompt_set_color set -l user_variable_name "$argv[1]" set -l user_variable $$user_variable_name set -l user_variable_bright set -l default default_done switch (count $argv) case 1 # No defaults given, use prompt color set default $___fish_git_prompt_color set default_done $___fish_git_prompt_color_done case 2 # One default given, use normal for done set default "$argv[2]" set default_done (set_color normal) case 3 # Both defaults given set default "$argv[2]" set default_done "$argv[3]" end if test (count $user_variable) -eq 2 set user_variable_bright $user_variable[2] set user_variable $user_variable[1] end set -l variable _$user_variable_name set -l variable_done "$variable"_done if not set -q $variable if test -n "$user_variable" if test -n "$user_variable_bright" set -g $variable (set_color --bold $user_variable) else set -g $variable (set_color $user_variable) end set -g $variable_done (set_color normal) else set -g $variable $default set -g $variable_done $default_done end end end function __fish_git_prompt_validate_colors --description "__fish_git_prompt helper, checks color variables" # Base color defaults to nothing (must be done first) __fish_git_prompt_set_color __fish_git_prompt_color '' '' # Normal colors __fish_git_prompt_set_color __fish_git_prompt_color_prefix __fish_git_prompt_set_color __fish_git_prompt_color_suffix __fish_git_prompt_set_color __fish_git_prompt_color_bare __fish_git_prompt_set_color __fish_git_prompt_color_merging __fish_git_prompt_set_color __fish_git_prompt_color_cleanstate __fish_git_prompt_set_color __fish_git_prompt_color_invalidstate __fish_git_prompt_set_color __fish_git_prompt_color_upstream # Colors with defaults with showcolorhints if test -n "$__fish_git_prompt_showcolorhints" __fish_git_prompt_set_color __fish_git_prompt_color_flags (set_color --bold blue) __fish_git_prompt_set_color __fish_git_prompt_color_branch (set_color green) __fish_git_prompt_set_color __fish_git_prompt_color_dirtystate (set_color red) __fish_git_prompt_set_color __fish_git_prompt_color_stagedstate (set_color green) else __fish_git_prompt_set_color __fish_git_prompt_color_flags __fish_git_prompt_set_color __fish_git_prompt_color_branch __fish_git_prompt_set_color __fish_git_prompt_color_dirtystate $___fish_git_prompt_color_flags $___fish_git_prompt_color_flags_done __fish_git_prompt_set_color __fish_git_prompt_color_stagedstate $___fish_git_prompt_color_flags $___fish_git_prompt_color_flags_done end # Branch_detached has a default, but is only used with showcolorhints __fish_git_prompt_set_color __fish_git_prompt_color_branch_detached (set_color red) # Colors that depend on flags color __fish_git_prompt_set_color __fish_git_prompt_color_stashstate $___fish_git_prompt_color_flags $___fish_git_prompt_color_flags_done __fish_git_prompt_set_color __fish_git_prompt_color_untrackedfiles $___fish_git_prompt_color_flags $___fish_git_prompt_color_flags_done end set -l varargs for var in repaint describe_style showdirtystate showstashstate showuntrackedfiles showupstream set varargs $varargs --on-variable __fish_git_prompt_$var end function __fish_git_prompt_repaint $varargs --description "Event handler, repaints prompt when functionality changes" if status --is-interactive commandline -f repaint ^/dev/null end end set -l varargs for var in '' _prefix _suffix _bare _merging _branch _dirtystate _stagedstate _invalidstate _stashstate _untrackedfiles _upstream _flags set varargs $varargs --on-variable __fish_git_prompt_color$var end set varargs $varargs --on-variable __fish_git_prompt_showcolorhints function __fish_git_prompt_repaint_color $varargs --description "Event handler, repaints prompt when any color changes" if status --is-interactive set -l var $argv[3] set -e _$var set -e _{$var}_done if test $var = __fish_git_prompt_color -o $var = __fish_git_prompt_color_flags -o $var = __fish_git_prompt_showcolorhints # reset all the other colors too for name in prefix suffix bare merging branch dirtystate stagedstate invalidstate stashstate untrackedfiles upstream flags set -e ___fish_git_prompt_color_$name set -e ___fish_git_prompt_color_{$name}_done end end commandline -f repaint ^/dev/null end end set -l varargs for var in dirtystate stagedstate invalidstate stashstate untrackedfiles upstream_equal upstream_behind upstream_ahead upstream_diverged set varargs $varargs --on-variable __fish_git_prompt_char_$var end function __fish_git_prompt_repaint_char $varargs --description "Event handler, repaints prompt when any char changes" if status --is-interactive set -e _$argv[3] commandline -f repaint ^/dev/null end end