| [ | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "git" | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "init", | 
 |       "[START_DIR]\\gn" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "git.init", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "fetch", | 
 |       "--tags", | 
 |       "https://gn.googlesource.com/gn", | 
 |       "2d72510e447ab60a9728aeea2362d8be2cbd7789" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "infra_step": true, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "git.fetch", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "checkout", | 
 |       "FETCH_HEAD" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "infra_step": true, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "git.checkout", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "rev-parse", | 
 |       "HEAD" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "infra_step": true, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "git.rev-parse", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "cipd.bat", | 
 |       "ensure", | 
 |       "-root", | 
 |       "[START_DIR]\\cipd", | 
 |       "-ensure-file", | 
 |       "infra/ninja/${platform} version:1.8.2", | 
 |       "-max-threads", | 
 |       "0", | 
 |       "-json-output", | 
 |       "/path/to/tmp/json" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "ensure_installed", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_LOG_LINE@json.output@{@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    \"\": [@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@      {@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-version:1.8.2---\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/ninja/resolved-platform\"@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@      }@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    ]@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@  }@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@}@@@", | 
 |       "@@@STEP_LOG_END@json.output@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "cipd.bat", | 
 |       "ensure", | 
 |       "-root", | 
 |       "[CACHE]\\windows_sdk", | 
 |       "-ensure-file", | 
 |       "chrome_internal/third_party/sdk/windows uploaded:2019-09-06", | 
 |       "-max-threads", | 
 |       "0", | 
 |       "-json-output", | 
 |       "/path/to/tmp/json" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "ensure_installed (2)", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_LOG_LINE@json.output@{@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    \"\": [@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@      {@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-uploaded:2019-09\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"package\": \"chrome_internal/third_party/sdk/windows\"@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@      }@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    ]@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@  }@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@}@@@", | 
 |       "@@@STEP_LOG_END@json.output@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "python", | 
 |       "-u", | 
 |       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n", | 
 |       "[CACHE]\\windows_sdk\\win_sdk\\bin\\SetEnv.x64.json", | 
 |       "/path/to/tmp/json" | 
 |     ], | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "read SetEnv.x64.json", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_LOG_LINE@json.output@{@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@  \"env\": {@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    \"PATH\": [@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@      [@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"..\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"..\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"win_sdk\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"bin\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"x64\"@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@      ]@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    ], @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    \"VSINSTALLDIR\": [@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@      [@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"..\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"..\\\\\"@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@      ]@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    ]@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@  }@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@}@@@", | 
 |       "@@@STEP_LOG_END@json.output@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "debug" | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "debug.windows-amd64", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "python", | 
 |       "-u", | 
 |       "[START_DIR]\\gn\\build\\gen.py", | 
 |       "-d" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "env": { | 
 |       "VSINSTALLDIR": "[CACHE]\\windows_sdk" | 
 |     }, | 
 |     "env_prefixes": { | 
 |       "PATH": [ | 
 |         "[CACHE]\\windows_sdk\\win_sdk\\bin\\x64" | 
 |       ] | 
 |     }, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "debug.windows-amd64.generate", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "[START_DIR]\\cipd\\ninja", | 
 |       "-C", | 
 |       "[START_DIR]\\gn\\out" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "env": { | 
 |       "VSINSTALLDIR": "[CACHE]\\windows_sdk" | 
 |     }, | 
 |     "env_prefixes": { | 
 |       "PATH": [ | 
 |         "[CACHE]\\windows_sdk\\win_sdk\\bin\\x64" | 
 |       ] | 
 |     }, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "debug.windows-amd64.build", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "[START_DIR]\\gn\\out\\gn_unittests" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "env": { | 
 |       "VSINSTALLDIR": "[CACHE]\\windows_sdk" | 
 |     }, | 
 |     "env_prefixes": { | 
 |       "PATH": [ | 
 |         "[CACHE]\\windows_sdk\\win_sdk\\bin\\x64" | 
 |       ] | 
 |     }, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "debug.windows-amd64.test", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "release" | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "release.windows-amd64", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "python", | 
 |       "-u", | 
 |       "[START_DIR]\\gn\\build\\gen.py", | 
 |       "--use-lto", | 
 |       "--use-icf" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "env": { | 
 |       "VSINSTALLDIR": "[CACHE]\\windows_sdk" | 
 |     }, | 
 |     "env_prefixes": { | 
 |       "PATH": [ | 
 |         "[CACHE]\\windows_sdk\\win_sdk\\bin\\x64" | 
 |       ] | 
 |     }, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "release.windows-amd64.generate", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "[START_DIR]\\cipd\\ninja", | 
 |       "-C", | 
 |       "[START_DIR]\\gn\\out" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "env": { | 
 |       "VSINSTALLDIR": "[CACHE]\\windows_sdk" | 
 |     }, | 
 |     "env_prefixes": { | 
 |       "PATH": [ | 
 |         "[CACHE]\\windows_sdk\\win_sdk\\bin\\x64" | 
 |       ] | 
 |     }, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "release.windows-amd64.build", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "[START_DIR]\\gn\\out\\gn_unittests" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "env": { | 
 |       "VSINSTALLDIR": "[CACHE]\\windows_sdk" | 
 |     }, | 
 |     "env_prefixes": { | 
 |       "PATH": [ | 
 |         "[CACHE]\\windows_sdk\\win_sdk\\bin\\x64" | 
 |       ] | 
 |     }, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "release.windows-amd64.test", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "release.windows-amd64.upload", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "cipd.bat", | 
 |       "pkg-build", | 
 |       "-pkg-def", | 
 |       "{\"data\": [{\"file\": \"gn.exe\"}, {\"version_file\": \".versions/gn.exe.cipd_version\"}], \"install_mode\": \"copy\", \"package\": \"gn/gn/windows-amd64\", \"root\": \"[START_DIR]\\\\gn\\\\out\"}", | 
 |       "-out", | 
 |       "[CLEANUP]\\gn.cipd", | 
 |       "-hash-algo", | 
 |       "sha256", | 
 |       "-json-output", | 
 |       "/path/to/tmp/json" | 
 |     ], | 
 |     "cwd": "[START_DIR]\\gn", | 
 |     "env": { | 
 |       "VSINSTALLDIR": "[CACHE]\\windows_sdk" | 
 |     }, | 
 |     "env_prefixes": { | 
 |       "PATH": [ | 
 |         "[CACHE]\\windows_sdk\\win_sdk\\bin\\x64" | 
 |       ] | 
 |     }, | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "release.windows-amd64.upload.build gn/gn/windows-amd64", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@3@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@{@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    \"instance_id\": \"40-chars-fake-of-the-package-instance_id\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@    \"package\": \"gn/gn/windows-amd64\"@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@  }@@@", | 
 |       "@@@STEP_LOG_LINE@json.output@}@@@", | 
 |       "@@@STEP_LOG_END@json.output@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "taskkill.exe", | 
 |       "/f", | 
 |       "/t", | 
 |       "/im", | 
 |       "mspdbsrv.exe" | 
 |     ], | 
 |     "luci_context": { | 
 |       "realm": { | 
 |         "name": "gn:ci" | 
 |       }, | 
 |       "resultdb": { | 
 |         "current_invocation": { | 
 |           "name": "invocations/build:8945511751514863184", | 
 |           "update_token": "token" | 
 |         }, | 
 |         "hostname": "rdbhost" | 
 |       } | 
 |     }, | 
 |     "name": "taskkill mspdbsrv" | 
 |   }, | 
 |   { | 
 |     "name": "$result" | 
 |   } | 
 | ] |