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      "@@@STEP_LOG_LINE@json.output@    \"email\": \"author@example.com\", @@@",
      "@@@STEP_LOG_LINE@json.output@    \"name\": \"author\"@@@",
      "@@@STEP_LOG_LINE@json.output@  }, @@@",
      "@@@STEP_LOG_LINE@json.output@  \"reviewers\": {@@@",
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    "cmd": [],
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    "cmd": [
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    "~followup_annotations": [
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    "cmd": [],
    "name": "b2.get roll direction",
    "~followup_annotations": [
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    "name": "b2.remote",
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    "~followup_annotations": [
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    "~followup_annotations": [
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    "cmd": [
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    "cwd": "[START_DIR]/co/b2",
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    "~followup_annotations": [
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    "cmd": [
      "[START_DIR]/cipd_tool/path/to/gerrit/version%3Apinned-version/gerrit",
      "change-query",
      "-host",
      "https://pigweed-review.googlesource.com",
      "-input",
      "{\"params\": {\"q\": \"commit:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"}}",
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      "/path/to/tmp/json"
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    "cwd": "[START_DIR]/co/b2",
    "infra_step": true,
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    "~followup_annotations": [
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      "@@@STEP_LOG_LINE@json.input@}@@@",
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    "cmd": [
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    "cwd": "[START_DIR]/co/b2",
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    "name": "b2.get 12345",
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    "~followup_annotations": [
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      "@@@STEP_LOG_LINE@json.output@    \"email\": \"author@example.com\", @@@",
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      "@@@STEP_LOG_LINE@json.output@  \"reviewers\": {@@@",
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      "@@@STEP_LINK@gerrit link@https://pigweed-review.googlesource.com/q/12345@@@"
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    "cmd": [],
    "name": "cc author@example.com",
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    "cmd": [
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    "name": "roll message"
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    "cmd": [],
    "name": "roll message.message for a1",
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    "cmd": [
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    "cmd": [
      "git",
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      "diff --git a/foo.txt b/foo.txt\n--- a/foo.txt\n+++ b/foo.txt\n@@ -16 +16 @@\n-        foo = 5\n+        foo = 6\ndiff --git a/bar.txt b/bar.txt\n--- a/bar.txt\n+++ b/bar.txt\n@@ -5 +5 @@\n-        bar = 0\n+        bar = 1\n########dry-run####"
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    "cwd": "[START_DIR]/co",
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    "name": "calculate Change-Id.git hash-object",
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  {
    "cmd": [
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      "https://pigweed-review.googlesource.com",
      "-input",
      "{\"params\": {\"o\": [\"CURRENT_COMMIT\", \"CURRENT_REVISION\", \"MESSAGES\"], \"q\": \"change:pigweed/pigweed~main~Idcafe3609bd1c8c808cc0005865453850afdf06e\"}}",
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    "cwd": "[START_DIR]/co",
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    "name": "check for identical roll",
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    "~followup_annotations": [
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    "cmd": [
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  {
    "cmd": [
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    "~followup_annotations": [
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  {
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    "cmd": [
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    "name": "check for completion.check if done (0)",
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    "~followup_annotations": [
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      "@@@STEP_LOG_LINE@json.output@      \"tag\": \"autogenerated:cv\"@@@",
      "@@@STEP_LOG_LINE@json.output@    }, @@@",
      "@@@STEP_LOG_LINE@json.output@    {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"message\": \"Dry run: This CL passed the CQ dry run.\", @@@",
      "@@@STEP_LOG_LINE@json.output@      \"tag\": \"autogenerated:cv\"@@@",
      "@@@STEP_LOG_LINE@json.output@    }@@@",
      "@@@STEP_LOG_LINE@json.output@  ], @@@",
      "@@@STEP_LOG_LINE@json.output@  \"status\": \"NEW\"@@@",
      "@@@STEP_LOG_LINE@json.output@}@@@",
      "@@@STEP_LOG_END@json.output@@@",
      "@@@STEP_LOG_LINE@json.input@{@@@",
      "@@@STEP_LOG_LINE@json.input@  \"change_id\": \"pigweed/pigweed~main~Idcafe3609bd1c8c808cc0005865453850afdf06e\", @@@",
      "@@@STEP_LOG_LINE@json.input@  \"params\": {@@@",
      "@@@STEP_LOG_LINE@json.input@    \"o\": [@@@",
      "@@@STEP_LOG_LINE@json.input@      \"CURRENT_REVISION\"@@@",
      "@@@STEP_LOG_LINE@json.input@    ]@@@",
      "@@@STEP_LOG_LINE@json.input@  }@@@",
      "@@@STEP_LOG_LINE@json.input@}@@@",
      "@@@STEP_LOG_END@json.input@@@",
      "@@@STEP_LINK@gerrit link@https://pigweed-review.googlesource.com/q/pigweed/pigweed~main~Idcafe3609bd1c8c808cc0005865453850afdf06e@@@"
    ]
  },
  {
    "cmd": [
      "[START_DIR]/cipd_tool/path/to/gerrit/version%3Apinned-version/gerrit",
      "change-abandon",
      "-host",
      "https://pigweed-review.googlesource.com",
      "-input",
      "{\"change_id\": \"pigweed/pigweed~main~Idcafe3609bd1c8c808cc0005865453850afdf06e\", \"input\": {\"message\": \"Dry run passed.\"}}",
      "-output",
      "/path/to/tmp/json"
    ],
    "infra_step": true,
    "name": "abandon roll",
    "timeout": 600,
    "~followup_annotations": [
      "@@@STEP_TEXT@dry run passed@@@",
      "@@@STEP_LOG_END@json.output (invalid)@@@",
      "@@@STEP_LOG_LINE@json.output (exception)@No JSON object could be decoded@@@",
      "@@@STEP_LOG_END@json.output (exception)@@@",
      "@@@STEP_LOG_LINE@json.input@{@@@",
      "@@@STEP_LOG_LINE@json.input@  \"change_id\": \"pigweed/pigweed~main~Idcafe3609bd1c8c808cc0005865453850afdf06e\", @@@",
      "@@@STEP_LOG_LINE@json.input@  \"input\": {@@@",
      "@@@STEP_LOG_LINE@json.input@    \"message\": \"Dry run passed.\"@@@",
      "@@@STEP_LOG_LINE@json.input@  }@@@",
      "@@@STEP_LOG_LINE@json.input@}@@@",
      "@@@STEP_LOG_END@json.input@@@",
      "@@@STEP_LINK@gerrit link@https://pigweed-review.googlesource.com/q/pigweed/pigweed~main~Idcafe3609bd1c8c808cc0005865453850afdf06e@@@"
    ]
  },
  {
    "name": "$result"
  }
]