Reland "Skia: Maintain a checkout on swarming (compile) bots"

scripts/slave/recipes/skia/swarm_compile.expected/Build-Win-MSVC-x86-Debug-VS2015.json

 [
   {
     "cmd": [
       "python",
       "-u",
-      "[SLAVE_BUILD]\\skia\\tools\\buildbot_spec.py",
+      "\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",
+      "[CUSTOM_C:\\_B_CACHE]",
+      "511"
+    ],
+    "name": "makedirs checkout_path",
+    "~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",
+      "RECIPE_PACKAGE_REPO[depot_tools]\\gclient.py",
+      "config",
+      "--spec",
+      "cache_dir = None\nsolutions = [{'deps_file': 'DEPS', 'managed': False, 'name': 'skia', 'url': 'https://skia.googlesource.com/skia.git'}]\ntarget_os = ['llvm']"
+    ],
+    "cwd": "[CUSTOM_C:\\_B_CACHE]",
+    "env": {
+      "CHROME_HEADLESS": "1",
+      "PATH": "[DEPOT_TOOLS]:%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools]",
+      "PYTHONPATH": "[BUILD]\\scripts"
+    },
+    "name": "gclient setup"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_PACKAGE_REPO[depot_tools]\\gclient.py",
+      "sync",
+      "--nohooks",
+      "--force",
+      "--verbose",
+      "--delete_unversioned_trees",
+      "--revision",
+      "skia@abc123",
+      "--output-json",
+      "/path/to/tmp/json"
+    ],
+    "cwd": "[CUSTOM_C:\\_B_CACHE]",
+    "env": {
+      "CHROME_HEADLESS": "1",
+      "PATH": "[DEPOT_TOOLS]:%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools];RECIPE_PACKAGE_REPO[depot_tools]",
+      "PYTHONPATH": "[BUILD]\\scripts"
+    },
+    "name": "gclient sync",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"solutions\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"skia/\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"revision\": 164710@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  }@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@SET_BUILD_PROPERTY@got_revision@164710@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "[CUSTOM_C:\\_B_CACHE]\\skia\\tools\\buildbot_spec.py",
       "/path/to/tmp/json",
       "Build-Win-MSVC-x86-Debug-VS2015"
     ],
-    "cwd": "[SLAVE_BUILD]\\skia",
+    "cwd": "[CUSTOM_C:\\_B_CACHE]\\skia",
     "name": "exec buildbot_spec.py",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"build_targets\": [@@@",
       "@@@STEP_LOG_LINE@json.output@    \"most\"@@@",
       "@@@STEP_LOG_LINE@json.output@  ], @@@",
       "@@@STEP_LOG_LINE@json.output@  \"builder_cfg\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"compiler\": \"MSVC\", @@@",
       "@@@STEP_LOG_LINE@json.output@    \"configuration\": \"Debug\", @@@",
       "@@@STEP_LOG_LINE@json.output@    \"extra_config\": \"VS2015\", @@@",
@@ skipping 17 matching lines @@
       "@@@STEP_LOG_LINE@json.output@  \"upload_dm_results\": true, @@@",
       "@@@STEP_LOG_LINE@json.output@  \"upload_perf_results\": false@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
-      "[SLAVE_BUILD]\\skia\\infra\\bots\\bootstrap_win_toolchain_json.py",
+      "[CUSTOM_C:\\_B_CACHE]\\skia\\infra\\bots\\bootstrap_win_toolchain_json.py",
       "--win_toolchain_json",
       "[SLAVE_BUILD]\\src\\build\\win_toolchain.json",
       "--depot_tools_parent_dir",
       "[SLAVE_BUILD]"
     ],
     "name": "bootstrap win toolchain"
   },
   {
     "cmd": [
       "python",
       "make.py",
       "most"
     ],
-    "cwd": "[SLAVE_BUILD]\\skia",
+    "cwd": "[CUSTOM_C:\\_B_CACHE]\\skia",
     "env": {
       "BUILDTYPE": "Debug",
       "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]\\src",
+      "CHROME_PATH": "[CUSTOM_C:\\_B_CACHE]\\src",
       "GYP_DEFINES": "qt_sdk=C:/Qt/4.8.5/ skia_arch_type=x86 skia_warnings_as_errors=1 skia_win_debuggers_path=c:/DbgHelp skia_win_ltcg=0",
-      "PATH": "[SLAVE_BUILD]\\depot_tools:%(PATH)s",
-      "SKIA_OUT": "[SLAVE_BUILD]\\out"
+      "PATH": "[DEPOT_TOOLS]:%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools];RECIPE_PACKAGE_REPO[depot_tools]",
+      "PYTHONPATH": "[BUILD]\\scripts",
+      "SKIA_OUT": "[CUSTOM_C:\\_B_CACHE]\\skia\\out\\Build-Win-MSVC-x86-Debug-VS2015"
     },
     "name": "build most"
   },
   {
     "cmd": [
       "python",
       "-u",
       "import errno\nimport glob\nimport os\nimport shutil\nimport sys\n\nsrc = sys.argv[1]\ndst = sys.argv[2]\nbuild_products_whitelist = ['dm', 'dm.exe', 'nanobench', 'nanobench.exe', '*.so', '*.dll', '*.dylib', 'skia_launcher', 'lib/*.so', 'iOSShell.app', 'iOSShell.ipa']\n\ntry:\n  os.makedirs(dst)\nexcept OSError as e:\n  if e.errno != errno.EEXIST:\n    raise\n\nfor pattern in build_products_whitelist:\n  path = os.path.join(src, pattern)\n  for f in glob.glob(path):\n    print 'Copying build product %s to %s' % (f, dst)\n    shutil.move(f, dst)\n",
-      "[SLAVE_BUILD]\\out\\Debug",
+      "[CUSTOM_C:\\_B_CACHE]\\skia\\out\\Build-Win-MSVC-x86-Debug-VS2015\\Debug",
       "[SWARM_OUT_DIR]\\out\\Debug"
     ],
     "name": "copy build products",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@import errno@@@",
       "@@@STEP_LOG_LINE@python.inline@import glob@@@",
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import shutil@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ skipping 32 matching lines @@
       "@@@STEP_LOG_LINE@python.inline@    pass@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]