fix iterating through paths that have spaces in them

Fixes rbenv#344, rbenv#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
 

test/commands.bats

@@ -19,6 +19,18 @@ load test_helper
   assert_line "shell"
 }
 
+@test "commands in path with spaces" {
+  path="${RBENV_TEST_DIR}/my commands"
+  cmd="${path}/rbenv-sh-hello"
+  mkdir -p "$path"
+  touch "$cmd"
+  chmod +x "$cmd"
+
+  PATH="${path}:$PATH" run rbenv-commands --sh
+  assert_success
+  assert_line "hello"
+}
+
 @test "commands --no-sh" {
   run rbenv-commands --no-sh
   assert_success

test/exec.bats

@@ -0,0 +1,14 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+@test "supports hook path with spaces" {
+  hook_path="${RBENV_TEST_DIR}/custom stuff/rbenv hooks"
+  mkdir -p "${hook_path}/exec"
+  echo "export HELLO='from hook'" > "${hook_path}/exec/hello.bash"
+
+  export RBENV_VERSION=system
+  RBENV_HOOK_PATH="$hook_path" run rbenv-exec env
+  assert_success
+  assert_line "HELLO=from hook"
+}

test/hooks.bats

@@ -28,6 +28,18 @@ create_hook() {
   assert_line 2 "${RBENV_TEST_DIR}/etc/rbenv_hooks/exec/bueno.bash"
 }
 
+@test "supports hook paths with spaces" {
+  path1="${RBENV_TEST_DIR}/my hooks/rbenv.d"
+  path2="${RBENV_TEST_DIR}/etc/rbenv hooks"
+  create_hook "$path1" exec "hello.bash"
+  create_hook "$path2" exec "ahoy.bash"
+
+  RBENV_HOOK_PATH="$path1:$path2" run rbenv-hooks exec
+  assert_success
+  assert_line 0 "${RBENV_TEST_DIR}/my hooks/rbenv.d/exec/hello.bash"
+  assert_line 1 "${RBENV_TEST_DIR}/etc/rbenv hooks/exec/ahoy.bash"
+}
+
 @test "resolves relative paths" {
   path="${RBENV_TEST_DIR}/rbenv.d"
   create_hook "$path" exec "hello.bash"