[loader] Make recipe engine support examples/ module subdir

recipe_modules/shutil/example.expected/basic.json

Index: recipe_modules/shutil/example.expected/basic.json
diff --git a/recipe_modules/shutil/example.expected/basic.json b/recipe_modules/shutil/example.expected/basic.json
deleted file mode 100644
index 7369c8c6c74a0fcac394de024611886db14cd48d..0000000000000000000000000000000000000000
--- a/recipe_modules/shutil/example.expected/basic.json
+++ /dev/null
@@ -1,235 +0,0 @@
-[
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport os\nimport sys\nos.remove(sys.argv[1])\n",
-      "bar"
-    ],
-    "name": "foo",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@import os@@@",
-      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
-      "@@@STEP_LOG_LINE@python.inline@os.remove(sys.argv[1])@@@",
-      "@@@STEP_LOG_END@python.inline@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport json, os, sys\nif os.path.exists(sys.argv[1]) and os.path.isdir(sys.argv[1]):\n  with open(sys.argv[2], 'w') as f:\n    json.dump(os.listdir(sys.argv[1]), f)\n",
-      "/fake/dir",
-      "/path/to/tmp/json"
-    ],
-    "name": "listdir fake dir",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output@[@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"file 1\", @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"file 2\"@@@",
-      "@@@STEP_LOG_LINE@json.output@]@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@import json, os, sys@@@",
-      "@@@STEP_LOG_LINE@python.inline@if os.path.exists(sys.argv[1]) and os.path.isdir(sys.argv[1]):@@@",
-      "@@@STEP_LOG_LINE@python.inline@  with open(sys.argv[2], 'w') as f:@@@",
-      "@@@STEP_LOG_LINE@python.inline@    json.dump(os.listdir(sys.argv[1]), f)@@@",
-      "@@@STEP_LOG_END@python.inline@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "some",
-      "command"
-    ],
-    "name": "manipulate file 1"
-  },
-  {
-    "cmd": [
-      "some",
-      "command"
-    ],
-    "name": "manipulate file 2"
-  },
-  {
-    "cmd": [
-      "echo",
-      "[TMP_BASE]/prefix_a_tmp_1"
-    ],
-    "name": "print prefix_a"
-  },
-  {
-    "cmd": [
-      "echo",
-      "[TMP_BASE]/prefix_b_tmp_2"
-    ],
-    "name": "print prefix_b"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "abcde",
-      "tmp_file.txt"
-    ],
-    "name": "write_simple"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "tmp_file.txt",
-      "/path/to/tmp/"
-    ],
-    "name": "read_simple"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "! ~&&",
-      "tmp_file.txt"
-    ],
-    "name": "write_symbols"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "tmp_file.txt",
-      "/path/to/tmp/"
-    ],
-    "name": "read_symbols"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "abcde fgh",
-      "tmp_file.txt"
-    ],
-    "name": "write_spaces"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "tmp_file.txt",
-      "/path/to/tmp/"
-    ],
-    "name": "read_spaces"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "ab\ncd\nefg\n",
-      "tmp_file.txt"
-    ],
-    "name": "write_multiline"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "tmp_file.txt",
-      "/path/to/tmp/"
-    ],
-    "name": "read_multiline"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport sys, os\npath = sys.argv[1]\nmode = int(sys.argv[2])\nif not os.path.isdir(path):\n  if os.path.exists(path):\n    print \"%s exists but is not a dir\" % path\n    sys.exit(1)\n  os.makedirs(path, mode)\n",
-      "[TMP_BASE]/copytree_example_tmp",
-      "511"
-    ],
-    "name": "makedirs makedirs",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@import sys, os@@@",
-      "@@@STEP_LOG_LINE@python.inline@path = sys.argv[1]@@@",
-      "@@@STEP_LOG_LINE@python.inline@mode = int(sys.argv[2])@@@",
-      "@@@STEP_LOG_LINE@python.inline@if not os.path.isdir(path):@@@",
-      "@@@STEP_LOG_LINE@python.inline@  if os.path.exists(path):@@@",
-      "@@@STEP_LOG_LINE@python.inline@    print \"%s exists but is not a dir\" % path@@@",
-      "@@@STEP_LOG_LINE@python.inline@    sys.exit(1)@@@",
-      "@@@STEP_LOG_LINE@python.inline@  os.makedirs(path, mode)@@@",
-      "@@@STEP_LOG_END@python.inline@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "some file content",
-      "[TMP_BASE]/copytree_example_tmp/dummy_file"
-    ],
-    "name": "write [TMP_BASE]/copytree_example_tmp/dummy_file"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copytree(sys.argv[1], sys.argv[2], symlinks=bool(sys.argv[3]))\n",
-      "[TMP_BASE]/copytree_example_tmp",
-      "[TMP_BASE]/copytree_example_tmp2",
-      "0"
-    ],
-    "name": "copytree"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "[TMP_BASE]/copytree_example_tmp2/dummy_file",
-      "/path/to/tmp/"
-    ],
-    "name": "read [TMP_BASE]/copytree_example_tmp2/dummy_file"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport glob\nimport sys\nwith open(sys.argv[1], 'w') as f:\n  f.write('\\n'.join(glob.glob(sys.argv[2])))\n",
-      "/path/to/tmp/",
-      "[TMP_BASE]/copytree_example_tmp/*"
-    ],
-    "name": "glob"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::shutil]/resources/rmtree.py",
-      "[TMP_BASE]/copytree_example_tmp"
-    ],
-    "name": "cleanup"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::shutil]/resources/rmtree.py",
-      "[TMP_BASE]/copytree_example_tmp2"
-    ],
-    "name": "cleanup2"
-  },
-  {
-    "name": "$result",
-    "recipe_result": null,
-    "status_code": 0
-  }
-]