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      "@@@STEP_LOG_END@alternates@@@"
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    "cmd": [
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    "cmd": [],
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      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
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    "cmd": [
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      "@@@STEP_NEST_LEVEL@2@@@"
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    "cmd": [],
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    "cmd": [
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    "cmd": [
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    "infra_step": true,
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      "@@@STEP_NEST_LEVEL@1@@@",
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      "@@@STEP_LOG_END@submodules.log@@@"
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    "cmd": [
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    "cmd": [
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      "@@@STEP_LOG_END@git.log@@@"
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    "cmd": [],
    "name": "checkout foo",
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      "@@@STEP_LINK@applied foo:1234@https://foo-review.googlesource.com/c/1234@@@"
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    "cmd": [],
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      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [],
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      "@@@STEP_NEST_LEVEL@2@@@"
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      "RECIPE_MODULE[fuchsia::gerrit]/resources/tool_manifest.json",
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      "@@@STEP_LOG_LINE@tool_manifest.json@  \"version\": \"version:pinned-version\"@@@",
      "@@@STEP_LOG_LINE@tool_manifest.json@}@@@",
      "@@@STEP_LOG_END@tool_manifest.json@@@"
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    "cmd": [],
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      "@@@STEP_NEST_LEVEL@3@@@"
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    "infra_step": true,
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      "@@@STEP_NEST_LEVEL@4@@@"
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      "@@@STEP_LOG_LINE@json.output@      }@@@",
      "@@@STEP_LOG_LINE@json.output@    ]@@@",
      "@@@STEP_LOG_LINE@json.output@  }@@@",
      "@@@STEP_LOG_LINE@json.output@}@@@",
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    "cmd": [
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      "@@@STEP_LOG_LINE@json.output@]@@@",
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      "@@@STEP_LOG_LINE@json.input@  \"params\": {@@@",
      "@@@STEP_LOG_LINE@json.input@    \"q\": \"commit:h3ll0\"@@@",
      "@@@STEP_LOG_LINE@json.input@  }@@@",
      "@@@STEP_LOG_LINE@json.input@}@@@",
      "@@@STEP_LOG_END@json.input@@@"
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    "cmd": [],
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    "cmd": [],
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      "@@@STEP_LOG_LINE@alternates@[CACHE]/git/foo.googlesource.com-foo/objects@@@",
      "@@@STEP_LOG_END@alternates@@@"
    ]
  },
  {
    "cmd": [
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    "cwd": "[START_DIR]/project",
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    "cmd": [
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    "name": "checkout foo.git fetch",
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      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
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    "cmd": [
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    "cmd": [
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      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [],
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      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
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    "cmd": [
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    "cmd": [
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      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [],
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      "@@@STEP_LINK@gerrit@https://foo-review.googlesource.com/c/1234@@@",
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    "cmd": [
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    "cmd": [
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      "@@@STEP_NEST_LEVEL@2@@@"
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    "cmd": [
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      "@@@STEP_NEST_LEVEL@2@@@"
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    "cmd": [
      "git",
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      "@@@STEP_NEST_LEVEL@1@@@"
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  {
    "cmd": [],
    "name": "checkout foo.status",
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      "@@@STEP_NEST_LEVEL@1@@@",
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    ]
  },
  {
    "cmd": [],
    "name": "checkout foo.git log",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
      "git",
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      "@@@STEP_NEST_LEVEL@2@@@"
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  },
  {
    "cmd": [],
    "name": "checkout foo.base",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@",
      "@@@SET_BUILD_PROPERTY@got_revision@\"HEAD_HEAD_HEAD_HEAD_HEAD_HEAD_HEAD_HEAD_\"@@@",
      "@@@SET_BUILD_PROPERTY@got_revision_type@\"submitted_commit_hash\"@@@"
    ]
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  {
    "cmd": [
      "vpython",
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      "/path/to/tmp/json",
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    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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    "cmd": [
      "vpython",
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      "submodule status filler text",
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    "infra_step": true,
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    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@",
      "@@@STEP_LOG_LINE@submodules.log@submodule status filler text@@@",
      "@@@STEP_LOG_END@submodules.log@@@"
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      "git",
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    "cmd": [
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      "@@@STEP_NEST_LEVEL@1@@@",
      "@@@STEP_LOG_END@git.log@@@"
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    "cmd": [
      "git",
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    "cmd": [
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      "/path/to/tmp/"
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    "infra_step": true,
    "name": "read old revision",
    "~followup_annotations": [
      "@@@STEP_LOG_LINE@foo.txt@1111111111111111111111111111111111111111@@@",
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    "cmd": [
      "vpython",
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      "2222222222222222222222222222222222222222",
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    "infra_step": true,
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      "@@@STEP_LOG_LINE@foo.txt@2222222222222222222222222222222222222222@@@",
      "@@@STEP_LOG_END@foo.txt@@@"
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    "cmd": [],
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    "cmd": [
      "git",
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    "cmd": [
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      "@@@STEP_NEST_LEVEL@1@@@"
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  {
    "cmd": [],
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      "@@@STEP_LINK@2222222222222222222222222222222222222222@https://foo.googlesource.com/foo/+/2222222222222222222222222222222222222222@@@"
    ]
  },
  {
    "name": "$result"
  }
]