Fix Bash Git prompt cursor handling and stabilize rendering

This commit is contained in:
2026-01-10 17:34:51 +01:00
parent f02f5fb776
commit 841fd064a5

View File

@@ -8,6 +8,13 @@
#
GIT_PROMPT_THEME="${GIT_PROMPT_THEME:-1}"
#
# ANSI-safe base colors (cursor safe)
#
C_USER='\[\e[0;32m\]'
C_PATH='\[\e[38;5;178m\]'
C_RESET='\[\e[0m\]'
#
# Theme icon definitions
#
@@ -67,186 +74,143 @@ set_git_prompt_theme_icons() {
;;
esac
}
#
# Theme-aware git colors (ANSI-safe)
#
set_git_prompt_theme_colors() {
case "$GIT_PROMPT_THEME" in
4|5)
GC_BRANCH='\[\e[0;37m\]'
GC_STAGED='\[\e[0;31m\]'
GC_CONFLICT='\[\e[0;31m\]'
GC_CHANGED='\[\e[0;33m\]'
GC_UNTRACKED='\[\e[0;32m\]'
GC_STASHED='\[\e[0;36m\]'
GC_AHEAD='\[\e[0;37m\]'
GC_BEHIND='\[\e[0;37m\]'
GC_NOREMOTE='\[\e[0;37m\]'
GC_CLEAN='\[\e[0;32m\]'
GC_DIRTY='\[\e[0;31m\]'
;;
*)
GC_BRANCH='\[\e[38;5;117m\]'
GC_STAGED='\[\e[38;5;196m\]'
GC_CONFLICT='\[\e[38;5;196m\]'
GC_CHANGED='\[\e[38;5;69m\]'
GC_UNTRACKED='\[\e[38;5;41m\]'
GC_STASHED='\[\e[38;5;226m\]'
GC_AHEAD='\[\e[0;37m\]'
GC_BEHIND='\[\e[0;37m\]'
GC_NOREMOTE='\[\e[38;5;250m\]'
GC_CLEAN='\[\e[0;32m\]'
GC_DIRTY='\[\e[38;5;196m\]'
;;
esac
}
set_git_prompt_theme_icons
set_git_prompt_theme_colors
#
# Caching configuration and setup
# Cache (per shell tree, auto-cleared on reboot)
#
GIT_CACHE_FILE="/tmp/git_prompt_cache.$$"
# Collected state variables
GIT_STATE_HEAD=""
GIT_STATE_STATUS=""
GIT_STATE_STASH_LIST=""
GIT_STATE_UNTRACKED=""
GIT_STATE_FINGERPRINT=""
# Directories to skip for speed
HEAVY_DIRS=(
node_modules
vendor
dist
build
cache
uploads
public/uploads
tmp
.terraform
.cache
)
GIT_CACHE_FILE="/dev/shm/git_prompt_${USER}_${PPID}.cache"
#
# Curent state collection
# State collection
#
git_collect_state() {
# HEAD
GIT_STATE_HEAD=$(git rev-parse HEAD 2>/dev/null) || return 1
# Full status (branch + staged/modified)
GIT_STATE_STATUS=$(GIT_OPTIONAL_LOCKS=0 git status --porcelain --branch 2>/dev/null) || return 1
# Explicit porcelain contract
GIT_STATE_STATUS=$(git status --porcelain=v1 --branch 2>/dev/null) || return 1
# Stash list
GIT_STATE_STASH_LIST=$(GIT_OPTIONAL_LOCKS=0 git stash list 2>/dev/null || true)
GIT_STATE_STASH_LIST=$(git stash list 2>/dev/null || true)
# Smart untracked detection
# Much faster than git status because it only lists untracked, not modified
local untracked_raw
untracked_raw=$(git ls-files --others --exclude-standard 2>/dev/null || true)
# Apply directory skipping
GIT_STATE_UNTRACKED=""
while IFS= read -r f; do
skip=0
for d in "${HEAVY_DIRS[@]}"; do
[[ "$f" == "$d/"* ]] && skip=1 && break
for d in node_modules vendor dist build cache uploads public/uploads tmp .terraform .cache; do
[[ "$f" == "$d/"* ]] && continue 2
done
(( skip == 0 )) && GIT_STATE_UNTRACKED+="$f"$'\n'
GIT_STATE_UNTRACKED+="$f"$'\n'
done <<< "$untracked_raw"
# Build fingerprint
if command -v sha1sum >/dev/null; then
GIT_STATE_FINGERPRINT=$(
printf '%s\n%s\n%s\n%s\n%s\n' \
"$GIT_STATE_HEAD" \
"$GIT_STATE_STATUS" \
"$GIT_STATE_STASH_LIST" \
"$GIT_STATE_UNTRACKED" \
"$GIT_PROMPT_THEME" \
| sha1sum | awk '{print $1}'
)
else
GIT_STATE_FINGERPRINT=$(printf '%s\n%s\n%s\n%s\n' "$GIT_STATE_HEAD" "$GIT_STATE_STATUS" "$GIT_STATE_STASH_LIST" "$GIT_STATE_UNTRACKED")
fi
return 0
# POSIX fingerprint
GIT_STATE_FINGERPRINT=$(printf '%s%s%s%s%s' \
"$GIT_STATE_HEAD" \
"$GIT_STATE_STATUS" \
"$GIT_STATE_STASH_LIST" \
"$GIT_STATE_UNTRACKED" \
"$GIT_PROMPT_THEME" | cksum | awk '{print $1}')
}
#
# Render logic
# Render logic (colored + cursor safe)
#
actual_git_prompt_info_logic() {
local branch
branch=$(git symbolic-ref --short HEAD 2>/dev/null || echo "(detached)")
local status="$GIT_STATE_STATUS"
local stash_list="$GIT_STATE_STASH_LIST"
local staged conflicts changed untracked stashed is_clean has_remote
staged=$(grep -cE '^[AMDR] ' <<<"$status")
conflicts=$(grep -cE '^UU ' <<<"$status")
changed=$(grep -cE '^.[MD] ' <<<"$status")
local staged conflicts changed untracked stashed
staged=$(grep -cE '^[AMDR] ' <<<"$GIT_STATE_STATUS")
conflicts=$(grep -cE '^UU ' <<<"$GIT_STATE_STATUS")
changed=$(grep -cE '^.[MD] ' <<<"$GIT_STATE_STATUS")
untracked=$(grep -c . <<<"$GIT_STATE_UNTRACKED")
stashed=$(grep -c . <<<"$stash_list")
stashed=$(grep -c . <<<"$GIT_STATE_STASH_LIST")
# Parse branch/remote info
local first_line=${status%%$'\n'*}
local ahead=0 behind=0
has_remote=0
local first_line=${GIT_STATE_STATUS%%$'\n'*}
local ahead=0 behind=0 has_remote=0
[[ "$first_line" == *"..."* ]] && has_remote=1
[[ "$first_line" =~ ahead\ ([0-9]+) ]] && ahead=${BASH_REMATCH[1]}
[[ "$first_line" =~ behind\ ([0-9]+) ]] && behind=${BASH_REMATCH[1]}
if [[ "$first_line" == "## "* ]]; then
[[ "$first_line" == *"..."* ]] && has_remote=1
[[ "$first_line" =~ ahead\ ([0-9]+) ]] && ahead=${BASH_REMATCH[1]}
[[ "$first_line" =~ behind\ ([0-9]+) ]] && behind=${BASH_REMATCH[1]}
fi
local p=""
p+="${GC_BRANCH}${BRANCH_ICON}${branch}${C_RESET}"
is_clean=0
(( staged == 0 && conflicts == 0 && changed == 0 && untracked == 0 )) && is_clean=1
((staged > 0)) && p+=" ${GC_STAGED}${STAGED_ICON}${staged}${C_RESET}"
((conflicts > 0)) && p+=" ${GC_CONFLICT}${CONFLICT_ICON}${conflicts}${C_RESET}"
((changed > 0)) && p+=" ${GC_CHANGED}${CHANGED_ICON}${changed}${C_RESET}"
((untracked > 0)) && p+=" ${GC_UNTRACKED}${UNTRACKED_ICON}${untracked}${C_RESET}"
((stashed > 0)) && p+=" ${GC_STASHED}${STASHED_ICON}${stashed}${C_RESET}"
((ahead > 0)) && p+=" ${GC_AHEAD}${AHEAD_ICON}${ahead}${C_RESET}"
((behind > 0)) && p+=" ${GC_BEHIND}${BEHIND_ICON}${behind}${C_RESET}"
((has_remote == 0)) && p+=" ${GC_NOREMOTE}${NO_REMOTE_ICON}${C_RESET}"
#
# Render themes
#
if [[ "$GIT_PROMPT_THEME" == "2" ]]; then
printf "\[\e[30;44m\]"
printf "\[\e[97;44m\] %s%s " "$BRANCH_ICON" "$branch"
((staged > 0)) && printf " %s%d" "$STAGED_ICON" "$staged"
((conflicts > 0)) && printf " %s%d" "$CONFLICT_ICON" "$conflicts"
((changed > 0)) && printf " %s%d" "$CHANGED_ICON" "$changed"
((untracked > 0)) && printf " %s%d" "$UNTRACKED_ICON" "$untracked"
((stashed > 0)) && printf " %s%d" "$STASHED_ICON" "$stashed"
((ahead > 0)) && printf " %s%d" "$AHEAD_ICON" "$ahead"
((behind > 0)) && printf " %s%d" "$BEHIND_ICON" "$behind"
((has_remote == 0)) && printf " %s" "$NO_REMOTE_ICON"
((is_clean)) && printf " %s" "$CLEAN_ICON" || printf " %s" "$DIRTY_ICON"
printf "\[\e[34;107m\]"
printf "\[\e[30;107m\] \w"
printf "\[\e[97;49m\]"
printf "\[\e[0m\]"
elif [[ "$GIT_PROMPT_THEME" == "3" ]]; then
printf "\n\[\e[0;37m\]┌──[\e[0m"
printf "\e[38;5;117m%s%s\e[0m" "$BRANCH_ICON" "$branch"
((staged > 0)) && printf " \e[38;5;196m%s%d\e[0m" "$STAGED_ICON" "$staged"
((conflicts > 0)) && printf " \e[38;5;196m%s%d\e[0m" "$CONFLICT_ICON" "$conflicts"
((changed > 0)) && printf " \e[38;5;69m%s%d\e[0m" "$CHANGED_ICON" "$changed"
((untracked > 0)) && printf " \e[38;5;41m%s%d\e[0m" "$UNTRACKED_ICON" "$untracked"
((stashed > 0)) && printf " \e[38;5;226m%s%d\e[0m" "$STASHED_ICON" "$stashed"
((ahead > 0)) && printf " \e[0;37m%s%d\e[0m" "$AHEAD_ICON" "$ahead"
((behind > 0)) && printf " \e[0;37m%s%d\e[0m" "$BEHIND_ICON" "$behind"
((has_remote == 0)) && printf " \e[38;5;250m%s\e[0m" "$NO_REMOTE_ICON"
((is_clean)) && printf " \e[0;32m%s\e[0m" "$CLEAN_ICON" || printf " \e[38;5;196m%s\e[0m" "$DIRTY_ICON"
printf "\e[0;37m]\e[0m \[\e[38;5;178m\]\w\[\e[0m\]"
printf "\n\[\e[0;37m\]└──\[\e[0m\]"
if (( staged + conflicts + changed + untracked == 0 )); then
p+=" ${GC_CLEAN}${CLEAN_ICON}${C_RESET}"
else
printf "\e[0;37m[\e[0m"
printf "\e[38;5;117m%s%s\e[0m" "$BRANCH_ICON" "$branch"
((staged > 0)) && printf " \e[38;5;196m%s%d\e[0m" "$STAGED_ICON" "$staged"
((conflicts > 0)) && printf " \e[38;5;196m%s%d\e[0m" "$CONFLICT_ICON" "$conflicts"
((changed > 0)) && printf " \e[38;5;69m%s%d\e[0m" "$CHANGED_ICON" "$changed"
((untracked > 0)) && printf " \e[38;5;41m%s%d\e[0m" "$UNTRACKED_ICON" "$untracked"
((stashed > 0)) && printf " \e[38;5;226m%s%d\e[0m" "$STASHED_ICON" "$stashed"
((ahead > 0)) && printf " \e[0;37m%s%d\e[0m" "$AHEAD_ICON" "$ahead"
((behind > 0)) && printf " \e[0;37m%s%d\e[0m" "$BEHIND_ICON" "$behind"
((has_remote == 0)) && printf " \e[38;5;250m%s\e[0m" "$NO_REMOTE_ICON"
((is_clean)) && printf " \e[0;32m%s\e[0m" "$CLEAN_ICON" || printf " \e[38;5;196m%s\e[0m" "$DIRTY_ICON"
printf "\e[0;37m]\e[0m"
p+=" ${GC_DIRTY}${DIRTY_ICON}${C_RESET}"
fi
echo "$p"
}
#
# Main prompt logic
# Prompt logic (cache-safe)
#
git_prompt_info() {
git rev-parse --is-inside-work-tree &>/dev/null || return
git_collect_state || return
local fingerprint="$GIT_STATE_FINGERPRINT"
if [[ -f "$GIT_CACHE_FILE" ]]; then
local cached_fp
IFS= read -r cached_fp < "$GIT_CACHE_FILE"
if [[ -n "$cached_fp" && "$cached_fp" == "$fingerprint" ]]; then
read -r cached_fp < "$GIT_CACHE_FILE"
if [[ "$cached_fp" == "$GIT_STATE_FINGERPRINT" ]]; then
sed '1d' "$GIT_CACHE_FILE"
return
return 0
fi
fi
local output
output=$(actual_git_prompt_info_logic) || return
output=$(actual_git_prompt_info_logic)
{
echo "$fingerprint"
echo "$GIT_STATE_FINGERPRINT"
echo "$output"
} > "$GIT_CACHE_FILE"
@@ -257,37 +221,28 @@ update_git_prompt() {
local PROMPT_CHAR='$'
[[ $EUID -eq 0 ]] && PROMPT_CHAR='#'
GIT_PS1="$(git_prompt_info)"
#
# PS1 custom for all themes inside a git repository
#
local PS1_CUSTOM='\[\e[0;32m\]\u@\h\[\e[0m\]'
local GIT_PS1
GIT_PS1=$(git_prompt_info)
if [[ -n "$GIT_PS1" ]]; then
if [[ "$GIT_PROMPT_THEME" == "3" ]]; then
PS1="${PS1_CUSTOM} ${GIT_PS1} ${PROMPT_CHAR} "
elif [[ "$GIT_PROMPT_THEME" == "2" ]]; then
PS1="${PS1_CUSTOM} ${GIT_PS1}\[\e[0m\] ${PROMPT_CHAR} "
else
PS1="${PS1_CUSTOM} \[${GIT_PS1}\] \[\e[38;5;178m\]\w\[\e[0m\] ${PROMPT_CHAR} "
fi
PS1="${C_USER}\u@\h${C_RESET} [${GIT_PS1}] ${C_PATH}\w${C_RESET} ${PROMPT_CHAR} "
else
#
# PS1 cusom for all themes outside a git repository
#
PS1='\[\e[0;32m\]\u@\h\[\e[0m\]:\[\e[38;5;178m\]\w\[\e[0m\] '"${PROMPT_CHAR} "
PS1="${C_USER}\u@\h${C_RESET} ${C_PATH}\w${C_RESET} ${PROMPT_CHAR} "
fi
}
PROMPT_COMMAND=update_git_prompt
#
# Theme switcher
#
gpchange() {
local theme="${1:-}"
if [[ "$theme" =~ ^[1-5]$ ]]; then
export GIT_PROMPT_THEME="$theme"
set_git_prompt_theme_icons
set_git_prompt_theme_colors
update_git_prompt
echo "Switched to Git prompt theme $theme"
else