Reduce duplicate Jeannie progress repaints

jeannie

@@ -823,13 +823,8 @@ jeannie_step_progress() {
     local description="$1"
     local step_log="$2"
     local started_at="$3"
+    local last_line="${4:-}"
     local elapsed=$((SECONDS - started_at))
-    local last_line=""
-
-    if [[ -s "${step_log}" ]]; then
-        last_line="$(tail -n 1 "${step_log}" 2>/dev/null || true)"
-        last_line="$(jeannie_compact_text "${last_line}" 88)"
-    fi
 
     printf '\r'
     jeannie_step_prefix "${description}"
@@ -841,6 +836,17 @@ jeannie_step_progress() {
     printf '\033[K'
 }
 
+jeannie_step_latest_progress_line() {
+    local step_log="$1"
+    local last_line=""
+
+    if [[ -s "${step_log}" ]]; then
+        last_line="$(tail -n 1 "${step_log}" 2>/dev/null || true)"
+        last_line="$(jeannie_compact_text "${last_line}" 88)"
+    fi
+    printf '%s' "${last_line}"
+}
+
 redact_sensitive_output() {
     sed -E \
         -e 's/(GITEA_BOOTSTRAP_PASSWORD=)["'\'']?[^"'\''[:space:]]+["'\'']?/\1[REDACTED]/g' \
@@ -862,6 +868,9 @@ run_step() {
     local progress_pid
     local progress_interval="${JEANNIE_PROGRESS_INTERVAL_SECONDS:-10}"
     local started_at
+    local current_progress_line=""
+    local last_progress_line=""
+    local last_progress_rendered_at=0
     shift
 
     JEANNIE_STEP_INDEX=$((JEANNIE_STEP_INDEX + 1))
@@ -894,7 +903,13 @@ run_step() {
         while kill -0 "${progress_pid}" >/dev/null 2>&1; do
             sleep "${progress_interval}"
             if kill -0 "${progress_pid}" >/dev/null 2>&1; then
-                jeannie_step_progress "${description}" "${step_log}" "${started_at}"
+                current_progress_line="$(jeannie_step_latest_progress_line "${step_log}")"
+                if [[ "${current_progress_line}" != "${last_progress_line}" ]] ||
+                    ((SECONDS - last_progress_rendered_at >= 60)); then
+                    jeannie_step_progress "${description}" "${step_log}" "${started_at}" "${current_progress_line}"
+                    last_progress_line="${current_progress_line}"
+                    last_progress_rendered_at="${SECONDS}"
+                fi
             fi
         done
         wait "${progress_pid}" || true