tests: limit AFP smoke log excerpt to recent lines

tests/linux/afp_smoke_suite.sh

@@ -26,6 +26,7 @@ PREPARE_READONLY_RIGHTS=0
 READONLY_RIGHTS="[RF]"
 KEEP_GOING=1
 CAPTURE_LOG=1
+LOG_WINDOW_SECONDS=120
 
 usage() {
     cat <<USAGE
@@ -45,6 +46,7 @@ Options:
   --readonly-no-password    Use ncpfs -n for --readonly-user
   --prepare-readonly-rights Prepare/revoke explicit rights around the negative test
   --readonly-rights RIGHTS  Rights granted by --prepare-readonly-rights (default: $READONLY_RIGHTS)
+  --log-window-seconds N    Include only recent AFP log lines from the last N seconds (default: $LOG_WINDOW_SECONDS)
   --no-log                  Do not tail/grep the server log
   --stop-on-failure         Stop after the first failing smoke command
   -h, --help                Show this help
@@ -89,6 +91,8 @@ while [ $# -gt 0 ]; do
             PREPARE_READONLY_RIGHTS=1; shift ;;
         --readonly-rights)
             READONLY_RIGHTS=$2; shift 2 ;;
+        --log-window-seconds)
+            LOG_WINDOW_SECONDS=$2; shift 2 ;;
         --no-log)
             CAPTURE_LOG=0; shift ;;
         --stop-on-failure)
@@ -119,6 +123,13 @@ esac
 case "$CREATE_DIR_NAME" in
     ""|*/*|*\\*|*:*) echo "--create-dir-name must be a single path component" >&2; exit 2 ;;
 esac
+case "$LOG_WINDOW_SECONDS" in
+    ''|*[!0-9]*) echo "--log-window-seconds must be a positive integer" >&2; exit 2 ;;
+esac
+if [ "$LOG_WINDOW_SECONDS" -le 0 ]; then
+    echo "--log-window-seconds must be greater than zero" >&2
+    exit 2
+fi
 
 DIR_PATH=$NETWARE_PATH
 case "$NETWARE_PATH" in
@@ -136,6 +147,7 @@ UNIX_DIR20_PATH_DOS=$UNIX_PARENT_PATH/$CREATE_DIR20_NAME_DOS
 
 REPORT_TMP=$(mktemp "${TMPDIR:-/tmp}/mars-afp-smoke.XXXXXX")
 LOG_TMP=$(mktemp "${TMPDIR:-/tmp}/mars-afp-log.XXXXXX")
+LOG_RECENT_TMP=$(mktemp "${TMPDIR:-/tmp}/mars-afp-log-recent.XXXXXX")
 LOG_PID=""
 FAILURES=0
 RIGHTS_PREPARED=0
@@ -150,7 +162,7 @@ cleanup() {
         kill "$LOG_PID" 2>/dev/null || true
         wait "$LOG_PID" 2>/dev/null || true
     fi
-    rm -f "$LOG_TMP"
+    rm -f "$LOG_TMP" "$LOG_RECENT_TMP"
 }
 trap cleanup EXIT INT TERM
 
@@ -217,6 +229,24 @@ readonly_print_auth() {
     fi
 }
 
+
+capture_recent_afp_log() {
+    local cutoff
+
+    : >"$LOG_RECENT_TMP"
+    if [ ! -r "$LOG_FILE" ]; then
+        return 1
+    fi
+
+    cutoff=$(date -d "@$(( $(date +%s) - LOG_WINDOW_SECONDS ))" '+%m.%d,%H:%M:%S' 2>/dev/null) || return 1
+    awk -v cutoff="$cutoff" '
+        /AFP/ {
+            ts = substr($0, 1, 14)
+            if (ts >= cutoff) print
+        }
+    ' "$LOG_FILE" >"$LOG_RECENT_TMP"
+}
+
 finish_report() {
     if [ "$CAPTURE_LOG" -eq 1 ]; then
         sleep 1
@@ -226,7 +256,10 @@ finish_report() {
             LOG_PID=""
         fi
         section "AFP server log excerpt"
-        if [ -s "$LOG_TMP" ]; then
+        emit "recent_window_seconds=$LOG_WINDOW_SECONDS"
+        if capture_recent_afp_log && [ -s "$LOG_RECENT_TMP" ]; then
+            cat "$LOG_RECENT_TMP" | tee -a "$REPORT_TMP"
+        elif [ -s "$LOG_TMP" ]; then
             cat "$LOG_TMP" | tee -a "$REPORT_TMP"
         else
             emit "No AFP lines captured from $LOG_FILE."
@@ -249,6 +282,7 @@ emit "path=$NETWARE_PATH"
 emit "dir_path=$DIR_PATH"
 emit "unix_path=$UNIX_PATH"
 emit "log=$LOG_FILE"
+emit "log_window_seconds=$LOG_WINDOW_SECONDS"
 emit "finder_type=$FINDER_TYPE"
 emit "finder_creator=$FINDER_CREATOR"
 emit "mtime_epoch=$TIMESTAMP_EPOCH"