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function __promptline_git_status {
[[ $(git rev-parse --is-inside-work-tree 2>/dev/null) == true ]] || return 1
local added_symbol=""
local unmerged_symbol=""
local modified_symbol="+"
local clean_symbol=""
local has_untracked_files_symbol=""
local ahead_symbol=""
local behind_symbol=""
local unmerged_count=0 modified_count=0 has_untracked_files=0 added_count=0 is_clean=""
set -- $(git rev-list --left-right --count @{upstream}...HEAD 2>/dev/null)
local behind_count=$1
local ahead_count=$2
# Added (A), Copied (C), Deleted (D), Modified (M), Renamed (R), changed (T), Unmerged (U), Unknown (X), Broken (B)
while read line; do
case "$line" in
M*) modified_count=$(( $modified_count + 1 )) ;;
U*) unmerged_count=$(( $unmerged_count + 1 )) ;;
esac
done < <(git diff --name-status)
while read line; do
case "$line" in
*) added_count=$(( $added_count + 1 )) ;;
esac
done < <(git diff --name-status --cached)
if [ -n "$(git ls-files --others --exclude-standard)" ]; then
has_untracked_files=1
fi
if [ $(( unmerged_count + modified_count + has_untracked_files + added_count )) -eq 0 ]; then
is_clean=1
fi
local leading_whitespace=""
[[ $ahead_count -gt 0 ]] && { printf "%s" "$leading_whitespace$ahead_symbol$ahead_count"; leading_whitespace=" "; }
[[ $behind_count -gt 0 ]] && { printf "%s" "$leading_whitespace$behind_symbol$behind_count"; leading_whitespace=" "; }
[[ $modified_count -gt 0 ]] && { printf "%s" "$leading_whitespace$modified_symbol$modified_count"; leading_whitespace=" "; }
[[ $unmerged_count -gt 0 ]] && { printf "%s" "$leading_whitespace$unmerged_symbol$unmerged_count"; leading_whitespace=" "; }
[[ $added_count -gt 0 ]] && { printf "%s" "$leading_whitespace$added_symbol$added_count"; leading_whitespace=" "; }
[[ $has_untracked_files -gt 0 ]] && { printf "%s" "$leading_whitespace$has_untracked_files_symbol"; leading_whitespace=" "; }
[[ $is_clean -gt 0 ]] && { printf "%s" "$leading_whitespace$clean_symbol"; leading_whitespace=" "; }
}