[
  {
    "cmd": [
      "python",
      "-u",
      "RECIPE_MODULE[depot_tools::gitiles]/resources/gerrit_client.py",
      "--json-file",
      "/path/to/tmp/json",
      "--url",
      "https://dart.googlesource.com/sdk/+/refs/heads/lkgr",
      "--format",
      "json"
    ],
    "name": "get commit to merge",
    "~followup_annotations": [
      "@@@STEP_LOG_LINE@json.output@{@@@",
      "@@@STEP_LOG_LINE@json.output@  \"author\": {@@@",
      "@@@STEP_LOG_LINE@json.output@    \"email\": \"testauthor@fake.chromium.org\", @@@",
      "@@@STEP_LOG_LINE@json.output@    \"name\": \"Test Author\", @@@",
      "@@@STEP_LOG_LINE@json.output@    \"time\": \"Mon Jan 01 00:00:00 2015\"@@@",
      "@@@STEP_LOG_LINE@json.output@  }, @@@",
      "@@@STEP_LOG_LINE@json.output@  \"commit\": \"1f8ac10f23c5b5bc1167bda84b833e5c057a77d2\", @@@",
      "@@@STEP_LOG_LINE@json.output@  \"committer\": {@@@",
      "@@@STEP_LOG_LINE@json.output@    \"email\": \"testauthor@fake.chromium.org\", @@@",
      "@@@STEP_LOG_LINE@json.output@    \"name\": \"Test Author\", @@@",
      "@@@STEP_LOG_LINE@json.output@    \"time\": \"Mon Jan 01 00:00:00 2015\"@@@",
      "@@@STEP_LOG_LINE@json.output@  }, @@@",
      "@@@STEP_LOG_LINE@json.output@  \"message\": \"Subject\\n\\nMessage\\n\", @@@",
      "@@@STEP_LOG_LINE@json.output@  \"parents\": [@@@",
      "@@@STEP_LOG_LINE@json.output@    \"8bb834e0b20c5477e78620c2108be38b4cab1ea1\"@@@",
      "@@@STEP_LOG_LINE@json.output@  ], @@@",
      "@@@STEP_LOG_LINE@json.output@  \"tree\": \"48761f4afebd42d59efcf591792ab1e79289fafd\", @@@",
      "@@@STEP_LOG_LINE@json.output@  \"tree_diff\": [@@@",
      "@@@STEP_LOG_LINE@json.output@    {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"new_id\": \"0f975f72631d85445ca50562eb5cc2c71837b55e\", @@@",
      "@@@STEP_LOG_LINE@json.output@      \"new_mode\": 33188, @@@",
      "@@@STEP_LOG_LINE@json.output@      \"new_path\": \"foo/bar\", @@@",
      "@@@STEP_LOG_LINE@json.output@      \"old_id\": \"0000000000000000000000000000000000000000\", @@@",
      "@@@STEP_LOG_LINE@json.output@      \"old_mode\": 0, @@@",
      "@@@STEP_LOG_LINE@json.output@      \"type\": \"add\"@@@",
      "@@@STEP_LOG_LINE@json.output@    }, @@@",
      "@@@STEP_LOG_LINE@json.output@    {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"new_id\": \"52c4105c1b40b1e59cbb2f51ff017ecf74a1a8c0\", @@@",
      "@@@STEP_LOG_LINE@json.output@      \"new_mode\": 33188, @@@",
      "@@@STEP_LOG_LINE@json.output@      \"new_path\": \"baz/qux\", @@@",
      "@@@STEP_LOG_LINE@json.output@      \"old_id\": \"0000000000000000000000000000000000000000\", @@@",
      "@@@STEP_LOG_LINE@json.output@      \"old_mode\": 0, @@@",
      "@@@STEP_LOG_LINE@json.output@      \"type\": \"add\"@@@",
      "@@@STEP_LOG_LINE@json.output@    }@@@",
      "@@@STEP_LOG_LINE@json.output@  ]@@@",
      "@@@STEP_LOG_LINE@json.output@}@@@",
      "@@@STEP_LOG_END@json.output@@@"
    ]
  },
  {
    "cmd": [
      "python",
      "-u",
      "RECIPE_MODULE[depot_tools::git]/resources/git_setup.py",
      "--path",
      "[START_DIR]/sdk",
      "--url",
      "https://dart.googlesource.com/sdk"
    ],
    "name": "git setup"
  },
  {
    "cmd": [
      "git",
      "fetch",
      "origin",
      "dev",
      "--progress"
    ],
    "cwd": "[START_DIR]/sdk",
    "env": {
      "PATH": "RECIPE_REPO[depot_tools]:<PATH>"
    },
    "infra_step": true,
    "name": "git fetch"
  },
  {
    "cmd": [
      "git",
      "checkout",
      "-f",
      "FETCH_HEAD"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "git checkout"
  },
  {
    "cmd": [
      "git",
      "rev-parse",
      "HEAD"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "read revision",
    "~followup_annotations": [
      "@@@STEP_TEXT@<br/>checked out 'deadbeef'<br/>@@@"
    ]
  },
  {
    "cmd": [
      "git",
      "clean",
      "-f",
      "-d",
      "-x"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "git clean"
  },
  {
    "cmd": [
      "git",
      "checkout",
      "dev"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "checkout dev"
  },
  {
    "cmd": [
      "git",
      "fetch",
      "origin",
      "1f8ac10f23c5b5bc1167bda84b833e5c057a77d2"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "fetch 1f8ac10f23c5b5bc1167bda84b833e5c057a77d2"
  },
  {
    "cmd": [
      "git",
      "merge-base",
      "--is-ancestor",
      "1f8ac10f23c5b5bc1167bda84b833e5c057a77d2",
      "HEAD"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "check if commit has been merged before"
  },
  {
    "cmd": [
      "git",
      "merge",
      "--no-commit",
      "--no-ff",
      "1f8ac10f23c5b5bc1167bda84b833e5c057a77d2"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "merge 1f8ac10f23c5b5bc1167bda84b833e5c057a77d2 to dev"
  },
  {
    "cmd": [
      "git",
      "checkout",
      "--ours",
      "tools/VERSION"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "restore version file on dev"
  },
  {
    "cmd": [
      "python",
      "-u",
      "RECIPE_MODULE[depot_tools::gitiles]/resources/gerrit_client.py",
      "--json-file",
      "/path/to/tmp/json",
      "--url",
      "https://dart.googlesource.com/sdk/+/refs/heads/lkgr/tools/VERSION",
      "--format",
      "text"
    ],
    "cwd": "[START_DIR]/sdk",
    "name": "download from_ref version file"
  },
  {
    "cmd": [
      "vpython",
      "-u",
      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
      "--json-output",
      "/path/to/tmp/json",
      "copy",
      "[START_DIR]/sdk/tools/VERSION",
      "/path/to/tmp/"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "read to_ref version file",
    "~followup_annotations": [
      "@@@STEP_LOG_LINE@VERSION@# Comment@@@",
      "@@@STEP_LOG_LINE@VERSION@CHANNEL dev@@@",
      "@@@STEP_LOG_LINE@VERSION@MAJOR 4@@@",
      "@@@STEP_LOG_LINE@VERSION@MINOR 1@@@",
      "@@@STEP_LOG_LINE@VERSION@PATCH 2@@@",
      "@@@STEP_LOG_LINE@VERSION@PRERELEASE 34@@@",
      "@@@STEP_LOG_LINE@VERSION@PRERELEASE_PATCH 25@@@",
      "@@@STEP_LOG_LINE@VERSION@UNKNOWN_FIELD feg@@@",
      "@@@STEP_LOG_END@VERSION@@@"
    ]
  },
  {
    "cmd": [
      "vpython",
      "-u",
      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
      "--json-output",
      "/path/to/tmp/json",
      "copy",
      "UNKNOWN_FIELD cde",
      "[START_DIR]/sdk/tools/VERSION"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "write new version file",
    "~followup_annotations": [
      "@@@STEP_LOG_LINE@VERSION@UNKNOWN_FIELD cde@@@",
      "@@@STEP_LOG_END@VERSION@@@"
    ]
  },
  {
    "cmd": [
      "git",
      "add",
      "tools/VERSION"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "git add"
  },
  {
    "cmd": [
      "git",
      "commit",
      "--all",
      "--message=Version 4.1.2-35.0.dev\n\nMerge commit '1f8ac10f23c5b5bc1167bda84b833e5c057a77d2' into 'dev'\n"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "git commit"
  },
  {
    "cmd": [
      "git",
      "tag",
      "--annotate",
      "--message=4.1.2-35.0.dev",
      "4.1.2-35.0.dev"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "git tag"
  },
  {
    "cmd": [
      "git",
      "push",
      "https://dart.googlesource.com/sdk.git",
      "refs/heads/dev"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "push to refs/heads/dev"
  },
  {
    "cmd": [
      "git",
      "push",
      "https://dart.googlesource.com/sdk.git",
      "4.1.2-35.0.dev"
    ],
    "cwd": "[START_DIR]/sdk",
    "infra_step": true,
    "name": "tag 4.1.2-35.0.dev"
  },
  {
    "name": "$result"
  }
]