fix iterating through paths that have spaces in them

Fixes #344, #196

libexec/rbenv-commands

@@ -20,9 +20,11 @@ elif [ "$1" = "--no-sh" ]; then
   shift
 fi
 
+IFS=: paths=($PATH)
+
 shopt -s nullglob
 
-{ for path in ${PATH//:/$'\n'}; do
+{ for path in "${paths[@]}"; do
     for command in "${path}/rbenv-"*; do
       command="${command##*rbenv-}"
       if [ -n "$sh" ]; then

libexec/rbenv-exec

@@ -32,7 +32,8 @@ fi
 RBENV_COMMAND_PATH="$(rbenv-which "$RBENV_COMMAND")"
 RBENV_BIN_PATH="${RBENV_COMMAND_PATH%/*}"
 
-for script in $(rbenv-hooks exec); do
+IFS=$'\n' scripts=(`rbenv-hooks exec`)
+for script in "${scripts[@]}"; do
   source "$script"
 done
 

libexec/rbenv-hooks

@@ -37,9 +37,11 @@ realpath() {
   cd "$cwd"
 }
 
+IFS=: hook_paths=($RBENV_HOOK_PATH)
+
 shopt -s nullglob
-for path in ${RBENV_HOOK_PATH//:/$'\n'}; do
-  for script in $path/"$RBENV_COMMAND"/*.bash; do
+for path in "${hook_paths[@]}"; do
+  for script in "$path/$RBENV_COMMAND"/*.bash; do
     echo $(realpath $script)
   done
 done

libexec/rbenv-rehash

@@ -144,7 +144,8 @@ make_shims ../versions/*/bin/*
 cd "$OLDPWD"
 
 # Allow plugins to register shims.
-for script in $(rbenv-hooks rehash); do
+IFS=$'\n' scripts=(`rbenv-hooks rehash`)
+for script in "${scripts[@]}"; do
   source "$script"
 done
 

libexec/rbenv-which

@@ -63,7 +63,8 @@ else
   RBENV_COMMAND_PATH="${RBENV_ROOT}/versions/${RBENV_VERSION}/bin/${RBENV_COMMAND}"
 fi
 
-for script in $(rbenv-hooks which); do
+IFS=$'\n' scripts=(`rbenv-hooks which`)
+for script in "${scripts[@]}"; do
   source "$script"
 done