only search non-system paths

completion/available/git.completion.bash

@@ -7,17 +7,19 @@ _command_exists git || return
 complete -p git &>/dev/null && return
 
 _git_bash_completion_paths=(
-  # Linux
-  '/etc/bash_completion.d/git.sh'
-  '/usr/share/bash-completion/completions/git'
-  # MacOS
+  # MacOS non-system locations
   '/Library/Developer/CommandLineTools/usr/share/git-core/git-completion.bash'
   '/Applications/Xcode.app/Contents/Developer/usr/share/git-core/git-completion.bash'
 )
 
-for fn in "${_git_bash_completion_paths[@]}" ; do
-  if [ -r "$fn" ] ; then
-    source "$fn"
-    break
+for _comp_path in "${_git_bash_completion_paths[@]}" ; do
+  if [ -r "$_comp_path" ] ; then
+    source "$_comp_path"
+    unset _git_bash_completion_paths
+    return
   fi
 done
+
+unset _git_bash_completion_paths
+
+(_log_warning "no completion files found - please try enabling the 'system' completion instead." && return 1)