Remove cd from shell scrips

Rakefile

@@ -178,7 +178,8 @@ begin
       task :rebuild => :check_for_pending_changes do
         tarballs.each do |tarball|
           basename = File.basename(tarball)
-          sh "cd #{File.dirname(tarball)} && rm #{basename} && env COPYFILE_DISABLE=1 tar -zcf #{basename} #{basename[0..-8]}"
+          untarred_path = File.join(File.dirname(tarball), basename[0..-8])
+          sh "rm #{tarball} && env COPYFILE_DISABLE=1 tar -zcf #{tarball} #{untarred_path}"
         end
       end
 

lib/cocoapods/generator/copy_resources_script.rb

@@ -119,12 +119,6 @@ case "${TARGETED_DEVICE_FAMILY}" in
     ;;
 esac
 
-realpath() {
-  DIRECTORY="$(cd "${1%/*}" && pwd)"
-  FILENAME="${1##*/}"
-  echo "$DIRECTORY/$FILENAME"
-}
-
 install_resource()
 {
   if [[ "$1" = /* ]] ; then
@@ -166,7 +160,7 @@ EOM
       xcrun mapc "$RESOURCE_PATH" "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename "$RESOURCE_PATH" .xcmappingmodel`.cdm"
       ;;
     *.xcassets)
-      ABSOLUTE_XCASSET_FILE=$(realpath "$RESOURCE_PATH")
+      ABSOLUTE_XCASSET_FILE="$RESOURCE_PATH"
       XCASSET_FILES+=("$ABSOLUTE_XCASSET_FILE")
       ;;
     *)
@@ -195,7 +189,7 @@ then
   # Find all other xcassets (this unfortunately includes those of path pods and other targets).
   OTHER_XCASSETS=$(find "$PWD" -iname "*.xcassets" -type d)
   while read line; do
-    if [[ $line != "`realpath $PODS_ROOT`*" ]]; then
+    if [[ $line != "${PODS_ROOT}*" ]]; then
       XCASSET_FILES+=("$line")
     fi
   done <<<"$OTHER_XCASSETS"

lib/cocoapods/installer/xcode/pods_project_generator/pod_target_installer.rb

@@ -241,9 +241,9 @@ module Pod
 
             build_phase = native_target.new_shell_script_build_phase('Create Symlinks to Header Folders')
             build_phase.shell_script = <<-eos.strip_heredoc
-          cd "$CONFIGURATION_BUILD_DIR/$WRAPPER_NAME"
-          ln -fs ${PUBLIC_HEADERS_FOLDER_PATH\#$WRAPPER_NAME/} ${PUBLIC_HEADERS_FOLDER_PATH\#\$CONTENTS_FOLDER_PATH/}
-          ln -fs ${PRIVATE_HEADERS_FOLDER_PATH\#\$WRAPPER_NAME/} ${PRIVATE_HEADERS_FOLDER_PATH\#\$CONTENTS_FOLDER_PATH/}
+          local base="$CONFIGURATION_BUILD_DIR/$WRAPPER_NAME"
+          ln -fs $base/${PUBLIC_HEADERS_FOLDER_PATH\#$WRAPPER_NAME/} $base/${PUBLIC_HEADERS_FOLDER_PATH\#\$CONTENTS_FOLDER_PATH/}
+          ln -fs $base/${PRIVATE_HEADERS_FOLDER_PATH\#\$WRAPPER_NAME/} $base/${PRIVATE_HEADERS_FOLDER_PATH\#\$CONTENTS_FOLDER_PATH/}
             eos
           end