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https://github.com/fish-shell/fish-shell
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570 lines
20 KiB
Fish
570 lines
20 KiB
Fish
# based off of the git-completion script that ships with git
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#
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# Written by Kevin Ballard <kevin@sb.org>
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#
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# This is heavily based off of the git-completion.bash script that ships with
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# git, which is Copyright (C) 2006,2007 Shawn O. Pearce <spearce@spearce.org>.
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# The act of porting the code, along with any new code, are Copyright (C) 2012
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# Kevin Ballard <kevin@sb.org>.
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#
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# By virtue of being based on the git-completion.bash script, this script is
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# distributed under the GNU General Public License, version 2.0.
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#
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# This script vends a function __fish_git_prompt which takes a format string,
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# exactly how the bash script works. This can be used in your fish_prompt
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# function.
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#
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# The behavior of __fish_git_prompt is very heavily based off of the bash
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# script's __fish_git_prompt function. As such, usage and customization is very
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# similar, although some extra flexibility is provided in this script.
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#
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# The argument to __fish_git_prompt will be displayed only if you are currently
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# in a git repository. The %s token will be the name of the branch. If HEAD is
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# not a branch, it attempts to show the relevant tag. The tag search is
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# controlled by the __fish_git_prompt_describe_style variable, with the
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# following values:
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# default (or unset) Any tag that exactly matches HEAD
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# contains Nearest annotated tag that contains HEAD
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# branch Nearest tag/branch that contains HEAD
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# describe Output of `git describe`
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#
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# In addition, if you set __fish_git_prompt_showdirtystate to a nonempty value,
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# unstaged (*) and staged (+) changes will be shown next to the branch name.
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# You can configure this per-repository with the bash.showDirtyState variable,
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# which defaults to true once __fish_git_prompt_showdirtystate is enabled. The
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# choice to leave the variable as 'bash' instead of renaming to 'fish' is done
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# to preserve compatibility with existing configured repositories.
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#
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# You can also see if currently something is stashed, by setting
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# __fish_git_prompt_showstashstate to a nonempty value. If something is
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# stashed, then a '$' will be shown next to the branch name.
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#
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# If you would like to see if there are untracked files, then you can set
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# __fish_git_prompt_showuntrackedfiles to a nonempty value. If there are
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# untracked files, then a '%' will be shown next to the branch name.
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#
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# If you would like to see the difference between HEAD and its upstream, set
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# __fish_git_prompt_showupstream to 'auto'. A "<" indicates you are behind, ">"
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# indicates you are ahead, and "<>" indicates you have diverged. You can
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# further control behavior by setting __fish_git_prompt_showupstream to a
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# space-separated list of values:
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# verbose show number of commits head/behind (+/-) upstream
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# legacy don't use the '--count' option available in recent versions
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# of git-rev-list
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# git always compare HEAD to @{upstream}
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# svn always compare HEAD to your SVN upstream
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# By default, __fish_git_prompt will compare HEAD to your SVN upstream if it
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# can find one, or @{upstream} otherwise. Once you have set
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# __fish_git_prompt_showupstream, you can override it on a per-repository basis
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# by setting the bash.showUpstream config variable. As before, this variable
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# remains named 'bash' to preserve compatibility.
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#
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# This fish-compatible version of __fish_git_prompt includes some additional
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# features on top of the above-documented bash-compatible features:
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#
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# The color for the branch name and each individual optional component can be
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# specified using __fish_git_prompt_color_<name>, where <name> is 'prefix',
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# 'suffix', 'bare', 'merging', 'branch', 'dirtystate', 'stagedstate',
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# 'invalidstate', 'stashstate', 'untrackedfiles', and 'upstream'. The variable
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# __fish_git_prompt_color is used for any component that does not have an
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# individual color set. Colors are specified as arguments to `set_color`.
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#
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# The characters used for the optional features can be configured using
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# __fish_git_prompt_char_<token>, where <token> is one of 'dirtystate',
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# 'stagedstate', 'invalidstate', 'stashstate', 'untrackedfiles',
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# 'upstream_equal', 'upstream_behind', 'upstream_ahead', and
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# 'upstream_diverged'.
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set -g ___fish_git_prompt_status_order stagedstate invalidstate dirtystate untrackedfiles
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function __fish_git_prompt_show_upstream --description "Helper function for __fish_git_prompt"
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# Ask git-config for some config options
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set -l svn_remote
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set -l svn_prefix
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set -l upstream git
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set -l legacy
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set -l verbose
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set -l informative
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set -l svn_url_pattern
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set -l show_upstream $__fish_git_prompt_showupstream
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git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showUpstream)$' ^/dev/null | tr '\0\n' '\n ' | while read -l key value
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switch $key
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case bash.showUpstream bash.showupstream
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set show_upstream $value
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test -n "$show_upstream"; or return
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case svn-remote.'*'.url
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set svn_remote $svn_remote $value
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set -l remote_prefix (/bin/sh -c 'echo "${1%.url}"' -- $key)
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set svn_prefix $svn_prefix $remote_prefix
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if test -n "$svn_url_pattern"
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set svn_url_pattern $svn_url_pattern"\|$value"
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else
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set svn_url_pattern $value
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end
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set upstream svn+git # default upstream is SVN if available, else git
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end
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end
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# parse configuration variables
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for option in $show_upstream
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switch $option
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case git svn
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set upstream $option
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case verbose
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set verbose 1
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case informative
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set informative 1
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case legacy
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set legacy 1
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end
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end
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# Find our upstream
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switch $upstream
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case git
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set upstream '@{upstream}'
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case svn\*
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# get the upstream from the 'git-svn-id: ...' in a commit message
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# (git-svn uses essentially the same procedure internally)
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set -l svn_upstream (git log --first-parent -1 --grep="^git-svn-id: \($svn_url_pattern\)" ^/dev/null)
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if test (count $svn_upstream) -ne 0
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echo $svn_upstream[-1] | read -l _ svn_upstream _
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set svn_upstream (/bin/sh -c 'echo "${1%@*}"' -- $svn_upstream)
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set -l cur_prefix
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for i in (seq (count $svn_remote))
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set -l remote $svn_remote[$i]
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set -l mod_upstream (/bin/sh -c 'echo "${1#$2}"' -- $svn_upstream $remote)
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if test "$svn_upstream" != "$mod_upstream"
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# we found a valid remote
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set svn_upstream $mod_upstream
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set cur_prefix $svn_prefix[$i]
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break
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end
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end
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if test -z "$svn_upstream"
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# default branch name for checkouts with no layout:
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if test -n "$GIT_SVN_ID"
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set upstream $GIT_SVN_ID
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else
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set upstream git-svn
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end
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else
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set upstream (/bin/sh -c 'val=${1#/branches}; echo "${val#/}"' -- $svn_upstream)
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set -l fetch_val (git config "$cur_prefix".fetch)
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if test -n "$fetch_val"
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set -l IFS :
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echo "$fetch_val" | read -l trunk pattern
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set upstream (/bin/sh -c 'echo "${1%/$2}"' -- $pattern $trunk)/$upstream
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end
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end
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else if test $upstream = svn+git
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set upstream '@{upstream}'
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end
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end
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# Find how many commits we are ahead/behind our upstream
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set -l count
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if test -z "$legacy"
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set count (git rev-list --count --left-right $upstream...HEAD ^/dev/null)
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else
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# produce equivalent output to --count for older versions of git
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set -l os
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set -l commits (git rev-list --left-right $upstream...HEAD ^/dev/null; set os $status)
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if test $os -eq 0
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set -l behind (count (for arg in $commits; echo $arg; end | grep '^<'))
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set -l ahead (count (for arg in $commits; echo $arg; end | grep -v '^<'))
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set count "$behind $ahead"
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else
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set count
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end
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end
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# calculate the result
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if test -n "$verbose"
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echo $count | read -l behind ahead
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switch "$count"
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case '' # no upstream
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case "0 0" # equal to upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_equal"
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case "0 *" # ahead of upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_ahead$ahead"
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case "* 0" # behind upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_behind$behind"
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case '*' # diverged from upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_diverged$ahead-$behind"
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end
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else if test -n informative
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echo $count | read -l behind ahead
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switch "$count"
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case '' # no upstream
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case "0 0" # equal to upstream
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case "0 *" # ahead of upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_ahead$ahead"
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case "* 0" # behind upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_behind$behind"
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case '*' # diverged from upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_ahead$ahead$___fish_git_prompt_char_upstream_behind$behind"
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end
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else
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switch "$count"
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case '' # no upstream
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case "0 0" # equal to upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_equal"
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case "0 *" # ahead of upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_ahead$ahead"
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case "* 0" # behind upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_behind$behind"
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case '*' # diverged from upstream
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echo "$___fish_git_prompt_char_upstream_prefix$___fish_git_prompt_char_upstream_diverged$ahead-$behind"
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end
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end
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end
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function __fish_git_prompt --description "Prompt function for Git"
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set -l git_dir (__fish_git_prompt_git_dir)
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test -n "$git_dir"; or return
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set -l r (__fish_git_prompt_current_operation $git_dir)
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set -l b (__fish_git_prompt_current_branch $git_dir)
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set -l w #dirty working directory
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set -l i #staged changes
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set -l s #stashes
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set -l u #untracked
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set -l c (__fish_git_prompt_current_branch_bare)
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set -l p #upstream
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set -l informative_status
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__fish_git_prompt_validate_chars
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if test "true" = (git rev-parse --is-inside-work-tree ^/dev/null)
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if test -n "$__fish_git_prompt_show_informative_status"
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set informative_status "|"(__fish_git_prompt_informative_status)
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else
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if test -n "$__fish_git_prompt_showdirtystate"
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set -l config (git config --bool bash.showDirtyState)
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if test "$config" != "false"
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set w (__fish_git_prompt_dirty)
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set i (__fish_git_prompt_staged)
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end
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end
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if test -n "$__fish_git_prompt_showstashstate"
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git rev-parse --verify refs/stash >/dev/null ^&1; and set s $___fish_git_prompt_char_stashstate
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end
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if test -n "$__fish_git_prompt_showuntrackedfiles"
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set -l files (git ls-files --others --exclude-standard)
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if test -n "$files"
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set u $___fish_git_prompt_char_untrackedfiles
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end
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end
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end
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if test -n "$__fish_git_prompt_showupstream"
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set p (__fish_git_prompt_show_upstream)
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end
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end
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__fish_git_prompt_validate_colors
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if test -n "$w"
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set w "$___fish_git_prompt_color_dirtystate$w$___fish_git_prompt_color_dirtystate_done"
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end
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if test -n "$i"
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set i "$___fish_git_prompt_color_stagedstate$i$___fish_git_prompt_color_stagedstate_done"
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end
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if test -n "$s"
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set s "$___fish_git_prompt_color_stashstate$s$___fish_git_prompt_color_stashstate_done"
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end
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if test -n "$u"
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set u "$___fish_git_prompt_color_untrackedfiles$u$___fish_git_prompt_color_untrackedfiles_done"
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end
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set b (/bin/sh -c 'echo "${1#refs/heads/}"' -- $b)
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if test -n "$b"
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set b "$___fish_git_prompt_color_branch$b$___fish_git_prompt_color_branch_done"
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end
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if test -n "$c"
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set c "$___fish_git_prompt_color_bare$c$___fish_git_prompt_color_bare_done"
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end
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if test -n "$r"
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set r "$___fish_git_prompt_color_merging$r$___fish_git_prompt_color_merging_done"
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end
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if test -n "$p"
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set p "$___fish_git_prompt_color_upstream$p$___fish_git_prompt_color_upstream_done"
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end
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# Formatting
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set -l f "$w$i$s$u"
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if test -n "$f"
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set f " $f"
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end
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set -l format $argv[1]
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if test -z "$format"
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set format " (%s)"
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end
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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"
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end
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### helper functions
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function __fish_git_prompt_staged --description "__fish_git_prompt helper, tells whether or not the current branch has staged files"
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set -l staged
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if git rev-parse --quiet --verify HEAD >/dev/null
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git diff-index --cached --quiet HEAD --; or set staged $___fish_git_prompt_char_stagedstate
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else
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set staged $___fish_git_prompt_char_invalidstate
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end
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echo $staged
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end
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function __fish_git_prompt_dirty --description "__fish_git_prompt helper, tells whether or not the current branch has tracked, modified files"
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set -l dirty
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set -l os
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git diff --no-ext-diff --quiet --exit-code
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set os $status
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if test $os -ne 0
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set dirty $___fish_git_prompt_char_dirtystate
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end
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echo $dirty
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end
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function __fish_git_prompt_informative_status
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set -l changedFiles (git diff --name-status | cut -c 1-2)
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set -l stagedFiles (git diff --staged --name-status | cut -c 1-2)
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set -l dirtystate (math (count $changedFiles) - (count (echo $changedFiles | grep "U")))
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set -l invalidstate (count (echo $stagedFiles | grep "U"))
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set -l stagedstate (math (count $stagedFiles) - $invalidstate)
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set -l untrackedfiles (count (git ls-files --others --exclude-standard))
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set -l info
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if [ (math $dirtystate + $invalidstate + $stagedstate + $untrackedfiles) = 0 ]
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set info $___fish_git_prompt_color_cleanstate$___fish_git_prompt_char_cleanstate$___fish_git_prompt_color_cleanstate_done
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else
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for i in $___fish_git_prompt_status_order
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if [ $$i != "0" ]
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set -l color_var ___fish_git_prompt_color_$i
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set -l color_done_var ___fish_git_prompt_color_$i
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set -l symbol_var ___fish_git_prompt_char_$i
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set -l color $$color_var
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set -l color_done $$color_done_var
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set -l symbol $$symbol_var
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set -l count
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if not set -q __fish_git_prompt_hide_$i
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set count $$i
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end
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set info "$info$color$symbol$count$color_done"
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end
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end
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end
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echo $info
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end
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function __fish_git_prompt_current_branch_bare --description "__fish_git_prompt helper, tells wheter or not the current branch is bare"
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set -l bare
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if test "true" = (git rev-parse --is-inside-git-dir ^/dev/null)
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if test "true" = (git rev-parse --is-bare-repository ^/dev/null)
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set bare "BARE:"
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end
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end
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echo $bare
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end
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function __fish_git_prompt_current_branch --description "__fish_git_prompt helper, returns the current Git branch"
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set -l git_dir $argv[1]
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set -l branch
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set -l os
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set branch (git symbolic-ref HEAD ^/dev/null; set os $status)
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if test $os -ne 0
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set branch (switch "$__fish_git_prompt_describe_style"
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case contains
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git describe --contains HEAD
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case branch
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git describe --contains --all HEAD
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case describe
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git describe HEAD
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case default '*'
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git describe --tags --exact-match HEAD
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end ^/dev/null; set os $status)
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if test $os -ne 0
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set branch (cut -c1-7 $git_dir/HEAD ^/dev/null; set os $status)
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if test $os -ne 0
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set branch unknown
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end
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end
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set branch "($branch)"
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end
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# Let user know they're inside the git dir of a non-bare repo
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if test "true" = (git rev-parse --is-inside-git-dir ^/dev/null)
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if test "false" = (git rev-parse --is-bare-repository ^/dev/null)
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set branch "GIT_DIR!"
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end
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end
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echo $branch
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end
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function __fish_git_prompt_current_operation --description "__fish_git_prompt helper, returns the current Git operation being performed"
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set -l operation
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set -l git_dir $argv[1]
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if test -f $git_dir/rebase-merge/interactive
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set operation "|REBASE-i"
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else if test -d $git_dir/rebase-merge
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set operation "|REBASE-m"
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else
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if test -d $git_dir/rebase-apply
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if test -f $git_dir/rebase-apply/rebasing
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set operation "|REBASE"
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else if test -f $git_dir/rebase-apply/applying
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set operation "|AM"
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else
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set operation "|AM/REBASE"
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end
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else if test -f $git_dir/MERGE_HEAD
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set operation "|MERGING"
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else if test -f $git_dir/CHERRY_PICK_HEAD
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set operation "|CHERRY-PICKING"
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else if test -f $git_dir/BISECT_LOG
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set operation "|BISECTING"
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end
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end
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echo $operation
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end
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function __fish_git_prompt_git_dir --description "__fish_git_prompt helper, returns .git dir if any"
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echo (git rev-parse --git-dir ^/dev/null)
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end
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function __fish_git_prompt_set_char
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set -l user_variable_name "$argv[1]"
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set -l char $argv[2]
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set -l user_variable $$user_variable_name
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set -l variable _$user_variable_name
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set -l variable_done "$variable"_done
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if not set -q $variable
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set -g $variable (set -q $user_variable_name; and echo $user_variable; or echo $char)
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end
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end
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function __fish_git_prompt_validate_chars --description "__fish_git_prompt helper, checks char variables"
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__fish_git_prompt_set_char __fish_git_prompt_char_cleanstate '.'
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__fish_git_prompt_set_char __fish_git_prompt_char_dirtystate '*'
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__fish_git_prompt_set_char __fish_git_prompt_char_stagedstate '+'
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__fish_git_prompt_set_char __fish_git_prompt_char_invalidstate '#'
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__fish_git_prompt_set_char __fish_git_prompt_char_stashstate '$'
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__fish_git_prompt_set_char __fish_git_prompt_char_untrackedfiles '%'
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__fish_git_prompt_set_char __fish_git_prompt_char_upstream_equal '='
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__fish_git_prompt_set_char __fish_git_prompt_char_upstream_behind '<'
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__fish_git_prompt_set_char __fish_git_prompt_char_upstream_ahead '>'
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__fish_git_prompt_set_char __fish_git_prompt_char_upstream_diverged '<>'
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__fish_git_prompt_set_char __fish_git_prompt_char_upstream_prefix ' '
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end
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function __fish_git_prompt_set_color
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set -l user_variable_name "$argv[1]"
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set -l user_variable $$user_variable_name
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set -l user_variable_bright
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if test (count $user_variable) -eq 2
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set user_variable_bright $user_variable[2]
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set user_variable $user_variable[1]
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end
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set -l variable _$user_variable_name
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set -l variable_done "$variable"_done
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if not set -q $variable
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if test -n "$user_variable"
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if test -n "$user_variable_bright"
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set -g $variable (set_color -o $user_variable)
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else
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set -g $variable (set_color $user_variable)
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end
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set -g $variable_done (set_color normal)
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else
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set -g $variable ''
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set -g $variable_done ''
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end
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end
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end
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function __fish_git_prompt_validate_colors --description "__fish_git_prompt helper, checks color variables"
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__fish_git_prompt_set_color __fish_git_prompt_color
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__fish_git_prompt_set_color __fish_git_prompt_color_prefix
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__fish_git_prompt_set_color __fish_git_prompt_color_suffix
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__fish_git_prompt_set_color __fish_git_prompt_color_bare
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__fish_git_prompt_set_color __fish_git_prompt_color_merging
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__fish_git_prompt_set_color __fish_git_prompt_color_branch
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__fish_git_prompt_set_color __fish_git_prompt_color_cleanstate
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__fish_git_prompt_set_color __fish_git_prompt_color_dirtystate
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__fish_git_prompt_set_color __fish_git_prompt_color_stagedstate
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__fish_git_prompt_set_color __fish_git_prompt_color_invalidstate
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__fish_git_prompt_set_color __fish_git_prompt_color_stashstate
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__fish_git_prompt_set_color __fish_git_prompt_color_untrackedfiles
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__fish_git_prompt_set_color __fish_git_prompt_color_upstream
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end
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set -l varargs
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for var in repaint describe_style showdirtystate showstashstate showuntrackedfiles showupstream
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set varargs $varargs --on-variable __fish_git_prompt_$var
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end
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function __fish_git_prompt_repaint $varargs --description "Event handler, repaints prompt when functionality changes"
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if status --is-interactive
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commandline -f repaint ^/dev/null
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end
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end
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|
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set -l varargs
|
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for var in '' _prefix _suffix _bare _merging _branch _dirtystate _stagedstate _invalidstate _stashstate _untrackedfiles _upstream
|
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set varargs $varargs --on-variable __fish_git_prompt_color$var
|
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end
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function __fish_git_prompt_repaint_color $varargs --description "Event handler, repaints prompt when any color changes"
|
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if status --is-interactive
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set -l var $argv[3]
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set -e _$var
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set -e _{$var}_done
|
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if test $var = __fish_git_prompt_color
|
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# reset all the other colors too
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for name in prefix suffix bare merging branch dirtystate stagedstate invalidstate stashstate untrackedfiles upstream
|
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set -e ___fish_git_prompt_color_$name
|
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set -e ___fish_git_prompt_color_{$name}_done
|
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end
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end
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commandline -f repaint ^/dev/null
|
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end
|
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end
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set -l varargs
|
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for var in dirtystate stagedstate invalidstate stashstate untrackedfiles upstream_equal upstream_behind upstream_ahead upstream_diverged
|
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set varargs $varargs --on-variable __fish_git_prompt_char_$var
|
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end
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function __fish_git_prompt_repaint_char $varargs --description "Event handler, repaints prompt when any char changes"
|
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if status --is-interactive
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set -e _$argv[3]
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commandline -f repaint ^/dev/null
|
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end
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end
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