Fix check of WeeChat Relay git repository

The `.git` directory can also be a regular file in a git worktree.

Author: flashcode

tools/build_debian.sh

@@ -134,7 +134,7 @@ fi
 
 # check git repository
 root_dir=$(git rev-parse --show-toplevel)
-if [ -z "${root_dir}" ] || [ ! -d "${root_dir}/.git" ] || [ ! -d "${root_dir}/debian-stable" ]; then
+if [ -z "${root_dir}" ] || [ ! -e "${root_dir}/.git" ] || [ ! -d "${root_dir}/debian-stable" ]; then
     error "this script must be run from WeeChat Relay git repository."
 fi
 cd "${root_dir}"

tools/makedist.sh

@@ -35,7 +35,7 @@
 
 # check git repository
 root_dir=$(git rev-parse --show-toplevel)
-if [ -z "${root_dir}" ] || [ ! -d "${root_dir}/.git" ]; then
+if [ -z "${root_dir}" ] || [ ! -e "${root_dir}/.git" ]; then
     echo "This script must be run from WeeChat Relay git repository."
     exit 1
 fi

tools/set_git_version.sh

@@ -43,7 +43,7 @@ git_version=""
 case ${version} in
 *-*)
     # devel/rc version (like 1.0.0-dev or 1.0.0-rc1)
-    if [ -d "${root_dir}/.git" ]; then
+    if [ -e "${root_dir}/.git" ]; then
         git_version=$(cd "${root_dir}" && git describe 2>/dev/null)
     fi
     if [ -z "${git_version}" ]; then