diff --git a/entrypoint.sh b/entrypoint.sh
index 8dbbd3b..c6e4a43 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -6,16 +6,21 @@ SOURCE_URL="$3"
 FORK_URL="$4"
 DRY_RUN="$5"
 
+if [ ! -d .cloneDir-source ]; then
+    git clone --bare --filter=tree:0 --depth "${DEPTH}" --no-single-branch "${SOURCE_URL}" ".cloneDir-source"
+    cd ".cloneDir-source"
+else
+    cd ".cloneDir-source"
+    git fetch --all -p -P
+fi
+
+OPTS=""
+
+if [ "${DRY_RUN}" = "true" ]; then
+    echo 'Using dry-run mode';
+    OPTS="--dry-run"
+fi
+
 echo "${BRANCHES}" | sed -n 1'p' | tr ',' '\n' | while read branchName; do
-    if [ ! -d ".cloneDir-${branchName}" ]; then
-        rm -rf ".cloneDir-${branchName}"
-    fi
-    echo "Get fork sha for branch"
-    FORK_SHA=$(git ls-remote git@github.com:williamdes/phpmyadmintest.git "refs/heads/${branchName}" | awk '{ print $1}')
-    echo "Fork sha: ${FORK_SHA}"
-    echo "Cloning ..."
-    git clone --bare --depth "${DEPTH}" --single-branch --branch "${branchName}" "${SOURCE_URL}" ".cloneDir-${branchName}"
-    cd ".cloneDir-${branchName}"
-    git push --dry-run "${FORK_URL}" $branchName
-    cd ../
+    git push ${OPTS} "${FORK_URL}" $branchName
 done