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#!/bin/bash
# Cache symbols (generate once)
declare -A GIT_SYMBOLS
_init_git_symbols() {
[[ -n "${GIT_SYMBOLS[clean]:-}" ]] && return # Already initialized
_colors_bash "$@"
GIT_SYMBOLS[pipe]="\x7C"
GIT_SYMBOLS[clean]="✔"
GIT_SYMBOLS[dirty]="∗"
GIT_SYMBOLS[ahead]="↑"
GIT_SYMBOLS[behind]="↓"
GIT_SYMBOLS[diverged]="⇅"
GIT_SYMBOLS[untracked]="?"
GIT_SYMBOLS[added]="+"
GIT_SYMBOLS[deleted]="D"
GIT_SYMBOLS[modified]="M"
GIT_SYMBOLS[renamed]="R"
GIT_SYMBOLS[staged]="●"
}
_get_git_branch() {
git symbolic-ref --short HEAD 2>/dev/null || echo "(no branch)"
}
_get_git_progress() {
local git_dir
git_dir="$(git rev-parse --git-dir 2>/dev/null)" || return 0
[[ -f "$git_dir/MERGE_HEAD" ]] && echo " [merge]" && return 0
[[ -d "$git_dir/rebase-apply" ]] && echo " [rebase]" && return 0
[[ -d "$git_dir/rebase-merge" ]] && echo " [rebase]" && return 0
[[ -f "$git_dir/CHERRY_PICK_HEAD" ]] && echo " [cherry-pick]" && return 0
[[ -f "$git_dir/BISECT_LOG" ]] && echo " [bisect]" && return 0
[[ -f "$git_dir/REVERT_HEAD" ]] && echo " [revert]" && return 0
return 0
}
# Single git status call - parse everything at once
_parse_git_status() {
local status_output ahead_behind
# Single git status call
status_output="$(git status --porcelain=v1 2>/dev/null)"
# Get ahead/behind counts in one call
if git rev-parse --abbrev-ref "@{upstream}" >/dev/null 2>&1; then
ahead_behind="$(git rev-list --left-right --count "@{upstream}"...HEAD 2>/dev/null)"
GIT_STATUS[behind]="${ahead_behind% *}"
GIT_STATUS[ahead]="${ahead_behind#* }"
else
GIT_STATUS[behind]=0
GIT_STATUS[ahead]=0
fi
# Parse status output
GIT_STATUS[dirty]=0
GIT_STATUS[staged]=0
GIT_STATUS[untracked]=0
GIT_STATUS[modified]=0
GIT_STATUS[added]=0
GIT_STATUS[deleted]=0
GIT_STATUS[renamed]=0
[[ -z "$status_output" ]] && return
local line
while IFS= read -r line; do
[[ -z "$line" ]] && continue
local index_status="${line:0:1}"
local work_status="${line:1:1}"
# Count changes
((GIT_STATUS[dirty]++))
# Index (staged) changes
case "$index_status" in
[MADRC]) ((GIT_STATUS[staged]++)) ;;
esac
# Working tree changes
case "$work_status" in
M) ((GIT_STATUS[modified]++)) ;;
D) ((GIT_STATUS[deleted]++)) ;;
esac
# Special cases
case "$line" in
"??*") ((GIT_STATUS[untracked]++)) ;;
"A "*) ((GIT_STATUS[added]++)) ;;
"R "*) ((GIT_STATUS[renamed]++)) ;;
esac
done <<< "$status_output"
}
# Fast git status generation
_get_git_status_fast() {
_init_git_symbols "$@"
declare -A GIT_STATUS
_parse_git_status
local output=""
# Clean repo
if [[ ${GIT_STATUS[dirty]} -eq 0 ]]; then
echo -n "${BOLD}${CYAN}${GIT_SYMBOLS[clean]}${RESET}"
return
fi
# Dirty count
output="${BOLD}${RED}${GIT_SYMBOLS[dirty]}${GIT_STATUS[dirty]}${RESET}"
# Ahead/behind
if [[ ${GIT_STATUS[ahead]} -gt 0 && ${GIT_STATUS[behind]} -gt 0 ]]; then
output+="${BOLD}${YELLOW}${GIT_SYMBOLS[diverged]}${GIT_STATUS[ahead]}/${GIT_STATUS[behind]}${RESET}"
elif [[ ${GIT_STATUS[ahead]} -gt 0 ]]; then
output+="${BOLD}${GREEN}${GIT_SYMBOLS[ahead]}${GIT_STATUS[ahead]}${RESET}"
elif [[ ${GIT_STATUS[behind]} -gt 0 ]]; then
output+="${BOLD}${RED}${GIT_SYMBOLS[behind]}${GIT_STATUS[behind]}${RESET}"
fi
# File status indicators
[[ ${GIT_STATUS[staged]} -gt 0 ]] && output+="${BOLD}${GREEN}${GIT_SYMBOLS[staged]}${RESET}"
[[ ${GIT_STATUS[untracked]} -gt 0 ]] && output+="${BOLD}${RED}${GIT_SYMBOLS[untracked]}${RESET}"
[[ ${GIT_STATUS[added]} -gt 0 ]] && output+="${BOLD}${GREEN}${GIT_SYMBOLS[added]}${RESET}"
[[ ${GIT_STATUS[deleted]} -gt 0 ]] && output+="${BOLD}${RED}${GIT_SYMBOLS[deleted]}${RESET}"
[[ ${GIT_STATUS[renamed]} -gt 0 ]] && output+="${BOLD}${BLUE}${GIT_SYMBOLS[renamed]}${RESET}"
echo -n "$output"
}
_prompt_get_git_info_fast() {
_colors_bash "$@"
local branch
branch="$(_get_git_branch)"
if [[ -n "$branch" ]]; then
local status
status="$(_get_git_status_fast "$@")"
printf '%b%s%s%b' "${BOLD}${YELLOW}" "git:($branch" "$status" "${BOLD}${YELLOW})"
fi
}
__prompt_git() {
if git rev-parse --git-dir >/dev/null 2>&1; then
echo -n "${BOLD}${WHITE} on ${RESET}"
_prompt_get_git_info_fast "$@"
echo -n "${BOLD}${RED}$(_get_git_progress)${RESET}"
fi
}
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