From 3735fab2cf684675914355c22599ffb8b944045d Mon Sep 17 00:00:00 2001
From: nyyu <mail@nyyu.dev>
Date: Tue, 4 Oct 2022 07:26:06 +0200
Subject: [PATCH] remove empty changelog

---
 sync.sh | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/sync.sh b/sync.sh
index 0c819d6..d8435bb 100644
--- a/sync.sh
+++ b/sync.sh
@@ -14,16 +14,19 @@ repo sync -q -c -j 6 --fail-fast --force-sync --no-tags
 
 echo -e "# Build $(date '+%Y-%m-%d %H:%M:%S') UTC\n" >>"${changelog}"
 
-tmp=($(repo forall -c 'echo "${REPO_PATH}:$(git rev-parse HEAD)"'))
+tmp=($(repo forall -c 'echo "${REPO_PATH}:$(git rev-parse --short HEAD)"'))
 for i in "${tmp[@]}"; do
     IFS=: read -r folder commit <<<"${i}"
     if [[ "${folder}" != lineage/* && "${before[${folder}]}" != "${commit}" ]]; then
         cd "${folder}" || continue
-        {
-            echo "## ${folder}"
-            git --no-pager log --pretty=format:"- %s" "${before[${folder}]}".."${commit}"
-            echo
-        } >>"${changelog}"
+        log=$(git --no-pager log --pretty=format:"- %s" "${before[${folder}]}".."${commit}")
+        if [[ $(echo -n "$log" | wc -l) != 0 ]]; then
+            {
+                echo "## ${folder} ${before[${folder}]}..${commit}"
+                echo "$log"
+                echo
+            } >>"${changelog}"
+        fi
         cd "${TOPDIR}" || continue
     fi
 done