Address shellcheck complaints

assets/common.sh

@@ -1,3 +1,4 @@
+#!/usr/bin/bash
 export TMPDIR=${TMPDIR:-/tmp}
 
 load_config() {
@@ -5,11 +6,11 @@ load_config() {
     local rclone_config_path=/opt/rclone/config
     local rclone_config_file=$rclone_config_path/.rclone.conf
 
-    (jq -r '.source.config // empty' < $1) > $config_path
+    (jq -r '.source.config // empty' < "$1") > "$config_path"
 
-    if [ -s $config_path ]; then
+    if [ -s "$config_path" ]; then
         mkdir -p $rclone_config_path
-        mv $config_path $rclone_config_file
+        mv "$config_path" $rclone_config_file
         # TODO: Remove Me - DEBUGGING
         echo "Config file:"
         cat $rclone_config_file
@@ -22,19 +23,22 @@ load_config() {
 
 load_files() {
     set +e
-    local files=$(jq -r '.source.files? | keys? | join(" ") // ""' < $1)
+
+    local files
+    files=$(jq -r '.source.files? | keys? | join(" ") // ""' < "$1")
+    
     set -e
     # TODO: Remove Me - DEBUGGING
     echo "Files:"
-    echo $files
+    echo "$files"
     if [[ ! -z "${files}" ]]; then
         for fileName in $files; do
             local jq_path=".source.files.${fileName}"
-            local content=$(jq -r "${jq_path}" < $1)
+            local content=$(jq -r "${jq_path}" < "$1")
             echo "$content" > "/tmp/${fileName}"
             # TODO: Remove Me - DEBUGGING
             echo "File /tmp/${fileName}"
-            cat /tmp/${fileName}
+            cat "/tmp/${fileName}"
         done
     fi
 }

assets/out

@@ -23,17 +23,17 @@ fi
 PATH=/usr/local/bin:$PATH
 
 payload=$(mktemp $TMPDIR/rclone-resource-request.XXXXXX)
-cat > $payload <&0
+cat > "$payload" <&0
 
 # TODO: Remove Me - DEBUGGING
 echo "Payload:"
-cat $payload
+cat "$payload"
 
-load_config $payload
-load_files $payload
+load_config "$payload"
+load_files "$payload"
 
-rclone_source_directory=$(jq -r '.params.source // ""' < $payload)
-rclone_destinations=$(jq -r '.params.destination[]? | .dir // ""' < $payload)
+rclone_source_directory=$(jq -r '.params.source // ""' < "$payload")
+rclone_destinations=$(jq -r '.params.destination[]? | .dir // ""' < "$payload")
 
 if [ -z "$rclone_source_directory" ]; then
   echo "invalid source directory (missing source)"
@@ -50,9 +50,9 @@ echo "Destinations:"
 jq -c '.params.destination[] | .dir' < $payload
 
 local_source_dir="${source}/${rclone_source_directory}"
-ls -alh ${local_source_dir}
+ls -alh "${local_source_dir}"
 
-sha256=$((find ${local_source_dir} -type f -exec sha256sum {} \;) | cut -d ' ' -f1)
+sha256=$( (find "${local_source_dir}" -type f -exec sha256sum {} \;) | cut -d ' ' -f1 )
 
 echo "sha256:${sha256}"
 
@@ -60,13 +60,13 @@ echo "sha256:${sha256}"
 rclone_source="local:${local_source_dir}"
 echo "Source: ${rclone_source}"
 
-destinations=$(jq -r '.params.destination[] | @base64' < $payload)
+destinations=$(jq -r '.params.destination[] | @base64' < "$payload")
 echo "Using encoded destinations:"
 echo " ${destinations}"
 
 for destination in $destinations; do
   _jq() {
-    echo ${destination} | base64 -d | jq -r ${1}
+    echo "${destination}" | base64 -d | jq -r "${1}"
   }
 
   rclone_destination=$(_jq '.dir')
@@ -75,9 +75,9 @@ for destination in $destinations; do
   rclone_destination_subdir_file=$(_jq '.subdir // ""')
   echo "Destination subdir file: ${rclone_destination_subdir_file}"
   rclone_destination_subdir=""
-  if [ ! -z "$rclone_destination_subdir_file" ]; then
+  if [ -n "$rclone_destination_subdir_file" ]; then
     echo "Looking in ${source}/${rclone_destination_subdir_file} for subdir to use"
-    rclone_destination_subdir=$(cat "${source}/${rclone_destination_subdir_file}" | head -n 1)
+    rclone_destination_subdir=$(head -n 1 < "${source}/${rclone_destination_subdir_file}")
   fi
 
   rclone_target="${rclone_destination}/${rclone_destination_subdir}"
@@ -87,6 +87,6 @@ done
 
 jq -n "{
   version: {
-    digest: $((echo -n "sha256:"; echo "$sha256") | jq -R .)
+    digest: $( (echo -n "sha256:"; echo "$sha256") | jq -R . )
   }
 }" >&3