Import images to .xcassets

#delete the existing images
find '/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray' -name "*.png" -type f -delete

for i in `seq 0 9`; do
#edit Contents.json
sed -i '' "s/\"filename\" :.*@2x.*/\"filename\" : \"spinner-loop_0$i.png\",/g" "/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray/loading-spinner-frame0$i.imageset/Contents.json"
#rename the folder
mv "/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray/loading-spinner-frame0$i.imageset" "/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray/gray-spinner-frame0$i.imageset"
#copy the new images
cp ~/spinner-loop/spinner-loop_0$i.png "/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray/gray-spinner-frame0$i.imageset"
done

#see the first loop, above
for i in `seq 10 52`; do
sed -i '' "s/\"filename\" :.*@2x.*/\"filename\" : \"spinner-loop_$i.png\",/g" "/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray/loading-spinner-frame$i.imageset/Contents.json"
mv "/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray/loading-spinner-frame$i.imageset" "/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray/gray-spinner-frame$i.imageset"
cp ~/spinner-loop/spinner-loop_$i.png "/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray/gray-spinner-frame$i.imageset"
done

#only use this part if you need to remove existing references to @1x and @3x images 
find '/Users/sam.warner/Domain/domain-ios-app/Resources/Images.xcassets/Loading Spinners/Gray' -name "*.json" -type f | while read json; do
sed -i '' "/\"filename\" :.*@1x.*/d" "$json"
sed -i '' "/\"filename\" :.*@3x.*/d" "$json"
done