diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
index e0954aab236..c890488ea80 100644
--- a/.github/workflows/master.yml
+++ b/.github/workflows/master.yml
@@ -215,8 +215,8 @@ jobs:
           fetch-depth: 0 # For a proper version and performance artifacts
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -259,8 +259,8 @@ jobs:
           fetch-depth: 0 # For a proper version and performance artifacts
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -305,8 +305,8 @@ jobs:
           fetch-depth: 0 # otherwise we will have no info about contributors
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -350,8 +350,8 @@ jobs:
   #       uses: actions/checkout@v2
   #     - name: Build
   #       run: |
-  #         git -C "$GITHUB_WORKSPACE" submodule sync
-  #         git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+  #         git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+  #         git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
   #         sudo rm -fr "$TEMP_PATH"
   #         mkdir -p "$TEMP_PATH"
   #         cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -395,8 +395,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -440,8 +440,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -485,8 +485,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -530,8 +530,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -575,8 +575,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -623,8 +623,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -668,8 +668,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -715,8 +715,8 @@ jobs:
           fetch-depth: 0 # otherwise we will have no info about contributors
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -762,8 +762,8 @@ jobs:
           fetch-depth: 0 # otherwise we will have no info about contributors
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -809,8 +809,8 @@ jobs:
           fetch-depth: 0 # otherwise we will have no info about contributors
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -856,8 +856,8 @@ jobs:
           fetch-depth: 0 # otherwise we will have no info about contributors
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -903,8 +903,8 @@ jobs:
           fetch-depth: 0 # otherwise we will have no info about contributors
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index f6e9880d088..76a26d685c5 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -277,8 +277,8 @@ jobs:
           fetch-depth: 0  # for performance artifact
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -322,8 +322,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -367,8 +367,8 @@ jobs:
   #       uses: actions/checkout@v2
   #     - name: Build
   #       run: |
-  #         git -C "$GITHUB_WORKSPACE" submodule sync
-  #         git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+  #         git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+  #         git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
   #         sudo rm -fr "$TEMP_PATH"
   #         mkdir -p "$TEMP_PATH"
   #         cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -414,8 +414,8 @@ jobs:
           fetch-depth: 0  # for performance artifact
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -459,8 +459,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -504,8 +504,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -549,8 +549,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -594,8 +594,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -639,8 +639,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -687,8 +687,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -732,8 +732,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -777,8 +777,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -822,8 +822,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -867,8 +867,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -912,8 +912,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
@@ -957,8 +957,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Build
         run: |
-          git -C "$GITHUB_WORKSPACE" submodule sync
-          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --init --jobs=10
+          git -C "$GITHUB_WORKSPACE" submodule sync --recursive
+          git -C "$GITHUB_WORKSPACE" submodule update --depth=1 --recursive --init --jobs=10
           sudo rm -fr "$TEMP_PATH"
           mkdir -p "$TEMP_PATH"
           cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
diff --git a/.gitmodules b/.gitmodules
index aa68aa218b5..55fd684fddb 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -79,10 +79,10 @@
 	url = https://github.com/ClickHouse/snappy.git
 [submodule "contrib/cppkafka"]
 	path = contrib/cppkafka
-	url = https://github.com/ClickHouse/cppkafka.git
+	url = https://github.com/mfontanini/cppkafka.git
 [submodule "contrib/brotli"]
 	path = contrib/brotli
-	url = https://github.com/ClickHouse/brotli.git
+	url = https://github.com/google/brotli.git
 [submodule "contrib/h3"]
 	path = contrib/h3
 	url = https://github.com/ClickHouse/h3
@@ -144,7 +144,7 @@
 	ignore = untracked
 [submodule "contrib/msgpack-c"]
 	path = contrib/msgpack-c
-	url = https://github.com/ClickHouse/msgpack-c
+	url = https://github.com/msgpack/msgpack-c
 [submodule "contrib/libcpuid"]
 	path = contrib/libcpuid
 	url = https://github.com/ClickHouse/libcpuid.git
diff --git a/contrib/arrow b/contrib/arrow
index 6f274b737c6..efdcd015cfd 160000
--- a/contrib/arrow
+++ b/contrib/arrow
@@ -1 +1 @@
-Subproject commit 6f274b737c66a6c39bab0d3bdf6cf7d139ef06f5
+Subproject commit efdcd015cfdee1b6aa349c9ca227ca12c3d697f5
diff --git a/contrib/brotli b/contrib/brotli
index 5bd78768449..63be8a99401 160000
--- a/contrib/brotli
+++ b/contrib/brotli
@@ -1 +1 @@
-Subproject commit 5bd78768449751a78d4b4c646b0612917986f5b1
+Subproject commit 63be8a99401992075c23e99f7c84de1c653e39e2
diff --git a/contrib/cppkafka b/contrib/cppkafka
index 64bd67db12b..5a119f689f8 160000
--- a/contrib/cppkafka
+++ b/contrib/cppkafka
@@ -1 +1 @@
-Subproject commit 64bd67db12b9c705e9127439a5b05b351d9df7da
+Subproject commit 5a119f689f8a4d90d10a9635e7ee2bee5c127de1
diff --git a/contrib/msgpack-c b/contrib/msgpack-c
index 790b3fe58eb..46684265d50 160000
--- a/contrib/msgpack-c
+++ b/contrib/msgpack-c
@@ -1 +1 @@
-Subproject commit 790b3fe58ebded7a8bd130782ef28bec5784c248
+Subproject commit 46684265d50b5d1b062d4c5c428ba08462844b1d
diff --git a/contrib/rapidjson b/contrib/rapidjson
index b571bd5c1a3..c4ef90ccdbc 160000
--- a/contrib/rapidjson
+++ b/contrib/rapidjson
@@ -1 +1 @@
-Subproject commit b571bd5c1a3b1fc931d77ae36932537a3c9018c3
+Subproject commit c4ef90ccdbc21d5d5a628d08316bfd301e32d6fa
diff --git a/contrib/snappy b/contrib/snappy
index 3786173af20..fb057edfed8 160000
--- a/contrib/snappy
+++ b/contrib/snappy
@@ -1 +1 @@
-Subproject commit 3786173af204d21da97180977ad6ab4321138b3d
+Subproject commit fb057edfed820212076239fd32cb2ff23e9016bf
diff --git a/utils/check-style/check-style b/utils/check-style/check-style
index 406b36e9251..84ce7ae5742 100755
--- a/utils/check-style/check-style
+++ b/utils/check-style/check-style
@@ -340,6 +340,3 @@ fi
 
 # Forbid files that differ only by character case
 find $ROOT_PATH | sort -f | uniq -i -c | awk '{ if ($1 > 1) print }'
-
-# Forbid recursive submodules
-find $ROOT_PATH/contrib -name '.gitmodules' -size +0 | xargs cat | grep -P '.' && echo "Recursive submodules are forbidden."