gradle: adopt `_bash_it_find_in_ancestor()`

completion/available/gradle.completion.bash

@@ -22,17 +22,9 @@
 # Avoid inaccurate completions for subproject tasks
 COMP_WORDBREAKS=$(echo "$COMP_WORDBREAKS" | sed -e 's/://g')
 
-__gradle-set-project-root-dir() {
+function __gradle-set-project-root-dir() {
-    local dir="${PWD}"
+    project_root_dir="$(_bash-it-find-in-ancestor "settings.gradle" "gradlew")"
-    project_root_dir="${PWD}"
+    return "$?"
-    while [[ $dir != '/' ]]; do
-        if [[ -f "$dir/settings.gradle" || -f "$dir/gradlew" ]]; then
-            project_root_dir=$dir
-            return 0
-        fi
-        dir="$(dirname "$dir")"
-    done
-    return 1
 }
 
 __gradle-init-cache-dir() {

plugins/available/gradle.plugin.bash

@@ -3,19 +3,10 @@ about-plugin 'Add a gw command to use gradle wrapper if present, else use system
 
 function gw() {
   local file="gradlew"
-  local curr_path="${PWD}"
+  local result
-  local result="gradle"
 
-  # Search recursively upwards for file.
+  result="$(_bash-it-find-in-ancestor "${file}")"
-  until [[ "${curr_path}" == "/" ]]; do
-    if [[ -e "${curr_path}/${file}" ]]; then
-      result="${curr_path}/${file}"
-      break
-    else
-      curr_path=$(dirname "${curr_path}")
-    fi
-  done
 
   # Call gradle
-  "${result}" $*
+  "${result:-gradle}" $*
 }