Make array selection bash <4.2 compatible

Signed-off-by: Javier Romero <root@jromero.codes>

scripts/_common.sh

@@ -21,7 +21,7 @@ function get_tasks() {
         tasks=()
         for t in $(find ${1} -mindepth 2 -maxdepth 2 -type d); do
             parts=(${t//\// })
-            tasks+=("${parts[-2]}:${parts[-1]}")
+            tasks+=("${parts[${#parts[@]}-2]}:${parts[${#parts[@]}-1]}")
         done
         echo "${tasks[@]}"
     fi
@@ -35,7 +35,7 @@ function get_pipelines() {
         pipelines=()
         for t in $(find ${1} -mindepth 2 -maxdepth 2 -type d); do
             parts=(${t//\// })
-            pipelines+=("${parts[-2]}:${parts[-1]}")
+            pipelines+=("${parts[${#parts[@]}-2]}:${parts[${#parts[@]}-1]}")
         done
         echo "${pipelines[@]}"
     fi

scripts/diff.sh

@@ -8,8 +8,8 @@ DIR="$(dirname "${BASH_SOURCE[0]}")"
 source "${DIR}/_common.sh"
 
 # CONFIGURATION
-
-DIFFCMD=$(env_or_default DIFFCMD "git diff --no-index")
+ 
+DIFFCMD=$(env_or_default DIFFCMD "git diff --no-index --diff-filter=RM")
 
 # DEPENDENCIES
 
@@ -31,7 +31,9 @@ function diff_resources() {
 
         new_resource_dir="${resources_dir}/${parts[0]}/${parts[1]}"
         echo "> Diffing $type '${parts[0]}/${parts[1]}'..."
+        echo "---> new: ${new_resource_dir}"
         old_resource_dir=$(find "${tmp_dir}/${type}/${parts[0]}" -maxdepth 1 -type d | sort | tail -1)
+        echo "---> old: ${old_resource_dir}"
         $DIFFCMD "${old_resource_dir}" "${new_resource_dir}" || true
         echo
         echo