From cce7c513bc11b33102f63c8b47cb4fb313379407 Mon Sep 17 00:00:00 2001
From: Lectom C Han <hchy0730@gmail.com>
Date: Wed, 17 Dec 2025 09:32:34 +0900
Subject: [PATCH] =?UTF-8?q?fetch=20log=20=EA=B0=9C=EC=84=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitea/workflows/mirror.yml | 27 ++++++++++++++++++++++-----
 to-do.md                    |  1 +
 2 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/.gitea/workflows/mirror.yml b/.gitea/workflows/mirror.yml
index 8441845..6b084ec 100644
--- a/.gitea/workflows/mirror.yml
+++ b/.gitea/workflows/mirror.yml
@@ -221,7 +221,7 @@ jobs:
               target_commit=$(echo "${target_main_ref}" | awk '{print $1}')
               if [[ -n "${branch_commit:-}" && -n "${target_commit}" && "${branch_commit}" == "${target_commit}" ]]; then
                 echo "Target main already at source commit (${branch_commit}). Skipping clone/push."
-                notify_status "skip" "${repo_name}" "${branch_name}" "${backup_mode}" "${start_epoch}"
+                notify_status "skip" "${repo_name}" "${branch_name}" "변경 없음 (동일 커밋)" "${start_epoch}"
                 return
               fi
             fi
@@ -258,11 +258,28 @@ jobs:
             fi
 
             echo "Fetching latest branch '${branch_name}' from source..."
-            if ! git fetch --no-tags "${shallow_exclude_args[@]}" source "+refs/heads/${branch_name}:refs/heads/${branch_name}"; then
+            FETCH_LOG="${CLONE_DIR}/fetch_shallow.log"
+            if ! git fetch --no-tags "${shallow_exclude_args[@]}" source "+refs/heads/${branch_name}:refs/heads/${branch_name}" 2> >(tee "${FETCH_LOG}" >&2); then
               if [[ "${#shallow_exclude_args[@]}" -gt 0 ]]; then
-                echo "::warning::shallow-exclude not supported; retrying with target main seed(depth=${TARGET_SEED_DEPTH}) and full fetch"
-                git fetch --no-tags --depth="${TARGET_SEED_DEPTH}" origin "refs/heads/main:refs/heads/main" || echo "::warning::Seeding from target main skipped (fetch failed or branch missing)"
-                if ! git fetch --no-tags source "+refs/heads/${branch_name}:refs/heads/${branch_name}"; then
+                echo "::warning::shallow-exclude fetch failed (likely unsupported). Log: ${FETCH_LOG}"
+                if [[ -s "${FETCH_LOG}" ]]; then
+                  echo "[shallow-exclude stderr tail]"
+                  tail -n 40 "${FETCH_LOG}"
+                fi
+                echo "[fallback] Seeding target main depth=${TARGET_SEED_DEPTH} then retrying full fetch without shallow-exclude"
+                SEED_LOG="${CLONE_DIR}/fetch_seed.log"
+                git fetch --no-tags --depth="${TARGET_SEED_DEPTH}" origin "refs/heads/main:refs/heads/main" 2> >(tee "${SEED_LOG}" >&2) || echo "::warning::Seeding from target main skipped (fetch failed or branch missing)"
+                backup_mode="증분 업데이트 (폴백: shallow-exclude 미지원)"
+                FULL_FETCH_LOG="${CLONE_DIR}/fetch_full.log"
+                if ! git fetch --no-tags source "+refs/heads/${branch_name}:refs/heads/${branch_name}" 2> >(tee "${FULL_FETCH_LOG}" >&2); then
+                  if [[ -s "${SEED_LOG:-}" ]]; then
+                    echo "[seed stderr tail]"
+                    tail -n 40 "${SEED_LOG}"
+                  fi
+                  if [[ -s "${FULL_FETCH_LOG}" ]]; then
+                    echo "[fallback fetch stderr tail]"
+                    tail -n 40 "${FULL_FETCH_LOG}"
+                  fi
                   echo "::error::Failed to fetch branch '${branch_name}' from source repo (fallback without shallow-exclude)"
                   notify_status "error" "${repo_name}" "${branch_name}" "${backup_mode}" "${start_epoch}" "source fetch 오류(폴백)"
                   cd "${ROOT_DIR}"
diff --git a/to-do.md b/to-do.md
index cce67ac..fb91576 100644
--- a/to-do.md
+++ b/to-do.md
@@ -27,3 +27,4 @@
 2025-12-16 18:29:58 KST 추가 업데이트: SEED_FROM_TARGET 옵션과 타겟 main 선-fetch 시드를 제거하고 shallow-exclude 기반 증분 fetch만 유지하여 증분 로직을 단순화.
 2025-12-17 08:27:54 KST 추가 업데이트: 스케줄 cron을 UTC 기준임을 명시하고 02:07 KST 실행을 위해 `7 17 * * *`로 설정, 동기화 결과 요약(총/성공/건너뜀/오류) 메시지를 마지막에 출력하고 알림 웹훅으로 전송하도록 추가.
 2025-12-17 08:35:58 KST 추가 업데이트: 소스 서버가 `--shallow-exclude`를 지원하지 않을 때 타겟 main을 depth=50으로 시드한 후 일반 fetch로 재시도하도록 폴백을 추가, README 동작 개요 반영.
+2025-12-17 08:48:00 KST 추가 업데이트: 동일 커밋 건너뛰기 시 모드를 “변경 없음”으로 분리하고 shallow-exclude 실패 시 fetch 로그 tail을 실행 로그에 남기며 폴백 모드를 표시하도록 개선.