[Copy Resources] Resolve various problems with xcasset bundles

Allow support for pods with xcasset bundles using `:path`.

Closes #1549
Closes #3384
Closes #3358

CHANGELOG.md

@@ -4,6 +4,18 @@ To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides
 
 To install release candidates run `[sudo] gem install cocoapods --pre`
 
+## Master
+
+##### Bug Fixes
+
+* Fixes various problems with Pods that use xcasset bundles. Pods that
+  use xcassets can now be used with the `pod :path` option.  
+  [Kyle Fuller](https://github.com/kylef)
+  [#1549](https://github.com/CocoaPods/CocoaPods/issues/1549)
+  [#3384](https://github.com/CocoaPods/CocoaPods/pull/3383)
+  [#3358](https://github.com/CocoaPods/CocoaPods/pull/3358)
+
+
 ## 0.36.3
 
 ##### Bug Fixes

lib/cocoapods/generator/copy_resources_script.rb

+# rubocop:disable LineLength
+
 module Pod
   module Generator
     class CopyResourcesScript
@@ -96,7 +98,13 @@ mkdir -p "${CONFIGURATION_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
 RESOURCES_TO_COPY=${PODS_ROOT}/resources-to-copy-${TARGETNAME}.txt
 > "$RESOURCES_TO_COPY"
 
-XCASSET_FILES=""
+XCASSET_FILES=()
+
+realpath() {
+  DIRECTORY=$(cd "${1%/*}" && pwd)
+  FILENAME="${1##*/}"
+  echo "$DIRECTORY/$FILENAME"
+}
 
 install_resource()
 {
@@ -128,7 +136,8 @@ install_resource()
       xcrun mapc "${PODS_ROOT}/$1" "${CONFIGURATION_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename "$1" .xcmappingmodel`.cdm"
       ;;
     *.xcassets)
-      XCASSET_FILES="$XCASSET_FILES '${PODS_ROOT}/$1'"
+      ABSOLUTE_XCASSET_FILE=$(realpath "${PODS_ROOT}/$1")
+      XCASSET_FILES+=("$ABSOLUTE_XCASSET_FILE")
       ;;
     /*)
       echo "$1"
@@ -169,8 +178,16 @@ then
       TARGET_DEVICE_ARGS="--target-device mac"
       ;;
   esac
-  while read line; do XCASSET_FILES="$XCASSET_FILES '$line'"; done <<<$(find "$PWD" -name "*.xcassets" | egrep -v "^$PODS_ROOT")
-  echo $XCASSET_FILES | xargs actool --output-format human-readable-text --notices --warnings --platform "${PLATFORM_NAME}" --minimum-deployment-target "${IPHONEOS_DEPLOYMENT_TARGET}" ${TARGET_DEVICE_ARGS} --compress-pngs --compile "${BUILT_PRODUCTS_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
+
+  # Find all other xcassets (this unfortunately includes those of path pods and other targets).
+  OTHER_XCASSETS=$(find "$PWD" -iname "*.xcassets" -type d)
+  while read line; do
+    if [[ $line != "`realpath $PODS_ROOT`*" ]]; then
+      XCASSET_FILES+=("$line")
+    fi
+  done <<<"$OTHER_XCASSETS"
+
+  printf "%s\\0" "${XCASSET_FILES[@]}" | xargs -0 xcrun actool --output-format human-readable-text --notices --warnings --platform "${PLATFORM_NAME}" --minimum-deployment-target "${IPHONEOS_DEPLOYMENT_TARGET}" ${TARGET_DEVICE_ARGS} --compress-pngs --compile "${BUILT_PRODUCTS_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
 fi
 EOS
     end

cocoapods-integration-specs @ 482081e5

-Subproject commit a0f4b2a0d386adf9cad9fc3797c72a89978c7b51
+Subproject commit 482081e5a1cecff64b88ac13af111056ffadece1