hooks: set up sparse checkout after cloning the vcsh repository

[config/vcsh.git] / .config / vcsh / hooks-available / submodule-update.sh

diff --git a/.config/vcsh/hooks-available/submodule-update.sh b/.config/vcsh/hooks-available/submodule-update.sh
index 34793ed..3f68fbc 100755 (executable)
--- a/.config/vcsh/hooks-available/submodule-update.sh
+++ b/.config/vcsh/hooks-available/submodule-update.sh
@@ -1,4 +1,15 @@
 #!/bin/sh
 
+set -e
+
+GIT_VERSION_MAJOR=$(git --version | sed -n 's/.* \([0-9]\{1,\}\)\..*/\1/p' )
+GIT_VERSION_MINOR=$(git --version | sed -n 's/.* \([0-9]\{1,\}\)\.\([0-9]\{1,\}\).*/\2/p' )
+
+if [ "$GIT_VERSION_MAJOR" -lt 2 ] || [ "$GIT_VERSION_MINOR" -lt 20 ];
+then
+  echo "Git >= 2.20 is required for submodules to work properly with vcsh" 1>&2
+  exit 1
+fi
+
 git submodule sync --recursive
 git submodule update --init --recursive