From 6ff27295e6223a76fc28131a519dc8027d0a661e Mon Sep 17 00:00:00 2001
From: Jaybe <master@jaybe.dev>
Date: Fri, 14 Nov 2025 22:33:43 +0900
Subject: [PATCH] =?UTF-8?q?chore(ci):=20prevent=20duplicate=20'automerge'?=
 =?UTF-8?q?=20creation=20=E2=80=94=20use=20existing=20label=20id=20only=20?=
 =?UTF-8?q?(auto-label/auto-pr)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitea/workflows/auto-label.yml | 19 ++++++-------------
 .gitea/workflows/auto-pr.yml    | 19 ++++++-------------
 2 files changed, 12 insertions(+), 26 deletions(-)

diff --git a/.gitea/workflows/auto-label.yml b/.gitea/workflows/auto-label.yml
index 723c48d..f66113a 100644
--- a/.gitea/workflows/auto-label.yml
+++ b/.gitea/workflows/auto-label.yml
@@ -20,22 +20,15 @@ jobs:
             echo "CI_TOKEN not set; skipping labeling"; exit 0; fi
           OWNER=$(echo "$REPO" | cut -d'/' -f1)
           NAME=$(echo "$REPO" | cut -d'/' -f2)
-          echo "Resolving label id for 'automerge' in $OWNER/$NAME"
+          echo "Resolving existing label id for 'automerge' in $OWNER/$NAME (no creation)"
           curl -sS -o /tmp/labels.json -H "Authorization: token ${CI_TOKEN}" \
             "${GITEA_BASE_URL}/api/v1/repos/${OWNER}/${NAME}/labels?limit=1000" || true
-          # Robust parse without jq: find the id preceding name "automerge"
-          LID=$(tr '\n' ' ' < /tmp/labels.json | grep -o '"id":[0-9][0-9]*[^\}]*"name":"automerge"' | head -n1 | sed -E 's/.*"id":([0-9]+).*/\1/' || true)
+          # Extract all ids whose name == automerge, prefer the smallest id (oldest)
+          LID=$(tr '\n' ' ' < /tmp/labels.json | \
+            grep -o '"id":[0-9][0-9]*[^\}]*"name":"automerge"' | \
+            sed -E 's/.*"id":([0-9]+).*/\1/' | sort -n | head -n1 || true)
           if [ -z "${LID:-}" ]; then
-            echo "Label 'automerge' not found. Creating..."
-            curl -sS -o /tmp/create_label.json -X POST \
-              -H "Content-Type: application/json" \
-              -H "Authorization: token ${CI_TOKEN}" \
-              "${GITEA_BASE_URL}/api/v1/repos/${OWNER}/${NAME}/labels" \
-              -d '{"name":"automerge","color":"#0ea5e9"}'
-            LID=$(tr '\n' ' ' < /tmp/create_label.json | sed -E 's/.*"id":([0-9]+).*/\1/' | head -n1 || true)
-          fi
-          if [ -z "${LID:-}" ]; then
-            echo "Failed to resolve or create label id; skipping"; exit 0; fi
+            echo "No existing 'automerge' label found; skipping labeling"; exit 0; fi
           echo "Labeling PR #$PR_NUMBER with id $LID"
           curl -sS -X POST \
             -H "Content-Type: application/json" \
diff --git a/.gitea/workflows/auto-pr.yml b/.gitea/workflows/auto-pr.yml
index 87d8fe2..b9d12bd 100644
--- a/.gitea/workflows/auto-pr.yml
+++ b/.gitea/workflows/auto-pr.yml
@@ -55,19 +55,12 @@ jobs:
           done
 
           if [ -n "${PR_NUMBER:-}" ]; then
-            echo "Resolving label id for 'automerge' in $OWNER/$NAME"
+            echo "Resolving existing label id for 'automerge' (no creation)"
             curl -sS -o /tmp/labels.json -H "Authorization: token ${CI_TOKEN}" \
-              "${GITEA_BASE_URL}/api/v1/repos/${OWNER}/${NAME}/labels"
-            LID=$(awk 'BEGIN{RS=","} /"name":"automerge"/ {if (match($0,/"id":([0-9]+)/,m)) {print m[1]; exit}}' /tmp/labels.json || true)
-            if [ -z "${LID:-}" ]; then
-              echo "Label 'automerge' not found. Creating..."
-              curl -sS -o /tmp/create_label.json -X POST \
-                -H "Content-Type: application/json" \
-                -H "Authorization: token ${CI_TOKEN}" \
-                "${GITEA_BASE_URL}/api/v1/repos/${OWNER}/${NAME}/labels" \
-                -d '{"name":"automerge","color":"#0ea5e9"}'
-              LID=$(sed -n 's/.*"id":\([0-9]*\).*/\1/p' /tmp/create_label.json | head -n1 || true)
-            fi
+              "${GITEA_BASE_URL}/api/v1/repos/${OWNER}/${NAME}/labels?limit=1000" || true
+            LID=$(tr '\n' ' ' < /tmp/labels.json | \
+              grep -o '"id":[0-9][0-9]*[^\}]*"name":"automerge"' | \
+              sed -E 's/.*"id":([0-9]+).*/\1/' | sort -n | head -n1 || true)
             if [ -n "${LID:-}" ]; then
               echo "Adding 'automerge' (id=$LID) label to PR #$PR_NUMBER"
               curl -sS -X POST \
@@ -76,7 +69,7 @@ jobs:
                 "${GITEA_BASE_URL}/api/v1/repos/${OWNER}/${NAME}/issues/${PR_NUMBER}/labels" \
                 -d '{"labels":['"${LID}"']}' || true
             else
-              echo "Failed to resolve label id; skipping label add"
+              echo "No existing 'automerge' label found; skipping label add"
             fi
           else
             echo "PR number could not be determined; skipping label add"