refactor: unify stack management output

manage.sh

@@ -9,6 +9,11 @@ CONFIG_FILE="${STACKS_CONFIG:-$STACKS_DIR/manage.conf}"
 LOCK_FILE="${STACKS_LOCK_FILE:-/run/lock/stacks-manage.lock}"
 
 DEFAULT_MAX_PARALLEL=2
+OUTPUT_IS_TTY=0
+
+if [[ -t 1 && -z "${NO_COLOR+x}" ]]; then
+	OUTPUT_IS_TTY=1
+fi
 
 CONFIG_GROUP_NAMES=()
 CONFIG_GROUP_LIMITS=()
@@ -26,6 +31,7 @@ UNASSIGNED_STACKS=()
 RUN_SUCCESS=0
 RUN_FAILED=0
 RUN_FAILED_STACKS=()
+RUN_SKIPPED_GROUPS=()
 
 die() {
 	echo "ERROR: $*" >&2
@@ -297,7 +303,7 @@ run_stack_prefixed() {
 	local action="$2"
 	local line status
 
-	STACKS_FORCE_ANSI=1 run_stack "$stack" "$action" 0 2>&1 |
+	STACKS_FORCE_ANSI="$OUTPUT_IS_TTY" run_stack "$stack" "$action" 0 2>&1 |
 		while IFS= read -r line || [[ -n "$line" ]]; do
 			[[ -n "$line" ]] || continue
 			printf '[%s] %s\n' "$stack" "$line"
@@ -313,7 +319,7 @@ run_group() {
 	local group_name="${GROUP_NAMES[group_index]}"
 	local limit="${GROUP_LIMITS[group_index]}"
 	local semaphore_dir semaphore_fifo semaphore_fd
-	local stack pid i status
+	local stack pid i status details
 	local failed=0
 	local -a stacks=() pids=() pid_stacks=()
 
@@ -324,8 +330,16 @@ run_group() {
 		limit="${#stacks[@]}"
 	fi
 
+	if ((${#stacks[@]} == 1)); then
+		details="1 stack"
+	elif ((limit == ${#stacks[@]})); then
+		details="${#stacks[@]} stacks in parallel"
+	else
+		details="${#stacks[@]} stacks, max $limit in parallel"
+	fi
+
 	echo
-	echo "==> Group $group_name: $action (${#stacks[@]} stacks, parallel=$limit)"
+	echo "==> Group $group_name: $action ($details)"
 
 	semaphore_dir="$(mktemp -d "${TMPDIR:-/tmp}/stacks-manage.XXXXXX")" ||
 		die "cannot create semaphore directory"
@@ -373,33 +387,33 @@ run_group() {
 
 print_run_summary() {
 	echo
-	echo "Succeeded: $RUN_SUCCESS"
-	echo "Failed:    $RUN_FAILED"
+	echo "Result: $RUN_SUCCESS succeeded, $RUN_FAILED failed"
 
 	if ((${#RUN_FAILED_STACKS[@]} > 0)); then
-		echo "Failures:  ${RUN_FAILED_STACKS[*]}"
+		echo "Failed stacks: ${RUN_FAILED_STACKS[*]}"
+	fi
+
+	if ((${#RUN_SKIPPED_GROUPS[@]} > 0)); then
+		echo "Skipped groups: ${RUN_SKIPPED_GROUPS[*]}"
 	fi
 }
 
-print_skipped_groups() {
+collect_skipped_groups() {
 	local failed_index="$1"
 	local direction="$2"
 	local i
-	local -a skipped=()
+
+	RUN_SKIPPED_GROUPS=()
 
 	if [[ "$direction" == "reverse" ]]; then
 		for ((i = failed_index - 1; i >= 0; i--)); do
-			skipped+=("${GROUP_NAMES[i]}")
+			RUN_SKIPPED_GROUPS+=("${GROUP_NAMES[i]}")
 		done
 	else
 		for ((i = failed_index + 1; i < ${#GROUP_NAMES[@]}; i++)); do
-			skipped+=("${GROUP_NAMES[i]}")
+			RUN_SKIPPED_GROUPS+=("${GROUP_NAMES[i]}")
 		done
 	fi
-
-	if ((${#skipped[@]} > 0)); then
-		echo "Skipped groups after failure: ${skipped[*]}" >&2
-	fi
 }
 
 run_all_grouped() {
@@ -410,13 +424,14 @@ run_all_grouped() {
 	RUN_SUCCESS=0
 	RUN_FAILED=0
 	RUN_FAILED_STACKS=()
+	RUN_SKIPPED_GROUPS=()
 	warn_unassigned
 
 	if [[ "$action" == "stop" || "$action" == "down" ]]; then
 		direction="reverse"
 		for ((i = ${#GROUP_NAMES[@]} - 1; i >= 0; i--)); do
 			if ! run_group "$i" "$action"; then
-				print_skipped_groups "$i" "$direction"
+				collect_skipped_groups "$i" "$direction"
 				print_run_summary
 				return 1
 			fi
@@ -424,7 +439,7 @@ run_all_grouped() {
 	else
 		for ((i = 0; i < ${#GROUP_NAMES[@]}; i++)); do
 			if ! run_group "$i" "$action"; then
-				print_skipped_groups "$i" "$direction"
+				collect_skipped_groups "$i" "$direction"
 				print_run_summary
 				return 1
 			fi
@@ -441,6 +456,7 @@ run_all_sequential() {
 	RUN_SUCCESS=0
 	RUN_FAILED=0
 	RUN_FAILED_STACKS=()
+	RUN_SKIPPED_GROUPS=()
 	warn_unassigned
 
 	for stack in "${MANAGED_STACKS[@]}"; do
@@ -452,7 +468,10 @@ run_all_sequential() {
 		fi
 	done
 
-	print_run_summary
+	if ((RUN_FAILED > 0)); then
+		echo
+		echo "Failed stacks: ${RUN_FAILED_STACKS[*]}" >&2
+	fi
 	((RUN_FAILED == 0))
 }