add timeout to git operations

README.md

@@ -356,6 +356,7 @@ The twelve available `PROMPT_COLOR_*` keys are:
 [prompt]
 PROMPT_SHOW_GIT   = 1
 PROMPT_SHOW_GIT_STATUS = 1
+PROMPT_GIT_TIMEOUT = 2
 PROMPT_SHOW_CONDA = 1
 PROMPT_SHOW_VENV  = 1
 PROMPT_SHOW_SESSION = 1
@@ -366,10 +367,11 @@ When enabled, the top prompt bar appends:
 - `git:<branch>` when inside a Git repository
 - `git:<branch>*` when local changes are present
 - `git:<branch> +N/-M` when ahead/behind upstream
+- `git:<branch>?` when `git diff` or `git rev-list` exceeded `PROMPT_GIT_TIMEOUT`
 - `conda:<env>` when a Conda environment is active
 - `venv:<name>` when a Python virtualenv is active (and Conda is not)
 - `ssh`, `tmux`, `screen` markers when the session runs in those contexts
-- both, separated by `|`, when both are available
+- all, separated by `|`, when several are available
 
 **Writing a custom theme file:**
 

doc/profile.conf.example

@@ -201,6 +201,10 @@ TERM=xterm-256color
 # Include Git dirty marker and upstream drift (+ahead/-behind) in the context.
 #PROMPT_SHOW_GIT_STATUS=1
 #
+# Timeout in seconds for git diff and git rev-list operations.
+# If exceeded, the prompt displays git:<branch>? instead of full status.
+#PROMPT_GIT_TIMEOUT=2
+#
 # Show Conda environment name at the end of the top bar when active.
 #PROMPT_SHOW_CONDA=1
 #

profile.d/prompt.sh

@@ -121,7 +121,7 @@ load_theme()
         _lth_line="${_lth_line%$'\r'}"                                       # strip CR
         _lth_line="${_lth_line#"${_lth_line%%[![:space:]]*}"}"               # ltrim
         _lth_line="${_lth_line%"${_lth_line##*[![:space:]]}"}"               # rtrim
-        [[ -z "$_lth_line" || "$_lth_line" == '#'* ]] && continue           # blank/comment
+        [[ -z "$_lth_line" || "$_lth_line" == '#'* ]] && continue            # blank/comment
         [[ "$_lth_line" == 'export '* ]] && _lth_line="${_lth_line#export }" # strip prefix
 
         if [[ "$_lth_line" != *=* ]]; then
@@ -519,25 +519,56 @@ set_prompt()
         branch=$(git symbolic-ref --quiet --short HEAD 2>/dev/null) || \
             branch=$(git rev-parse --short HEAD 2>/dev/null) || return 0
 
-        local dirty="" sync=""
+        local dirty="" sync="" timed_out=0
+        local _git_timeout="${PROMPT_GIT_TIMEOUT:-2}"
+
+        # Build a timeout wrapper if the 'timeout' command is available;
+        # fall back to direct execution on systems that lack it.
+        local -a _tw=()
+        command -v timeout >/dev/null 2>&1 && _tw=(timeout "$_git_timeout")
+
         if [[ "${PROMPT_SHOW_GIT_STATUS:-1}" != "0" ]]; then
-            if ! git diff --no-ext-diff --quiet --ignore-submodules -- 2>/dev/null || \
-               ! git diff --cached --no-ext-diff --quiet --ignore-submodules -- 2>/dev/null; then
+            local _ec
+
+            # Dirty check — working tree
+            "${_tw[@]}" git diff --no-ext-diff --quiet --ignore-submodules -- 2>/dev/null
+            _ec=$?
+            if [[ $_ec -eq 124 ]]; then
+                timed_out=1
+            elif [[ $_ec -ne 0 ]]; then
                 dirty="*"
+            else
+                # Dirty check — index
+                "${_tw[@]}" git diff --cached --no-ext-diff --quiet --ignore-submodules -- 2>/dev/null
+                _ec=$?
+                if [[ $_ec -eq 124 ]]; then
+                    timed_out=1
+                elif [[ $_ec -ne 0 ]]; then
+                    dirty="*"
+                fi
             fi
 
-            local counts ahead behind
-            counts=$(git rev-list --left-right --count "@{upstream}...HEAD" 2>/dev/null) || counts=""
-            if [[ "$counts" =~ ^([0-9]+)[[:space:]]+([0-9]+)$ ]]; then
-                behind="${BASH_REMATCH[1]}"
-                ahead="${BASH_REMATCH[2]}"
-                if [[ "$ahead" -gt 0 || "$behind" -gt 0 ]]; then
-                    sync=" +${ahead}/-${behind}"
+            if [[ $timed_out -eq 0 ]]; then
+                local counts ahead behind
+                counts=$("${_tw[@]}" git rev-list --left-right --count "@{upstream}...HEAD" 2>/dev/null)
+                _ec=$?
+                if [[ $_ec -eq 124 ]]; then
+                    timed_out=1
+                elif [[ "$counts" =~ ^([0-9]+)[[:space:]]+([0-9]+)$ ]]; then
+                    behind="${BASH_REMATCH[1]}"
+                    ahead="${BASH_REMATCH[2]}"
+                    if [[ "$ahead" -gt 0 || "$behind" -gt 0 ]]; then
+                        sync=" +${ahead}/-${behind}"
+                    fi
                 fi
             fi
         fi
 
-        printf "%s" "git:${branch}${dirty}${sync}"
+        if [[ $timed_out -eq 1 ]]; then
+            printf "%s" "git:${branch}?"
+        else
+            printf "%s" "git:${branch}${dirty}${sync}"
+        fi
     }
 
     local _prompt_conda_env