| [ | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "git" | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "init", | 
 |       "[START_DIR]/gn" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "name": "git.init", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "fetch", | 
 |       "--tags", | 
 |       "https://gn.googlesource.com/gn", | 
 |       "" | 
 |     ], | 
 |     "cwd": "[START_DIR]/gn", | 
 |     "infra_step": true, | 
 |     "name": "git.fetch", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "checkout", | 
 |       "FETCH_HEAD" | 
 |     ], | 
 |     "cwd": "[START_DIR]/gn", | 
 |     "infra_step": true, | 
 |     "name": "git.checkout", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "fetch", | 
 |       "https://gn.googlesource.com/gn", | 
 |       "refs/changes/56/123456/7" | 
 |     ], | 
 |     "cwd": "[START_DIR]/gn", | 
 |     "infra_step": true, | 
 |     "name": "git.fetch 123456/7", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "git", | 
 |       "cherry-pick", | 
 |       "FETCH_HEAD" | 
 |     ], | 
 |     "cwd": "[START_DIR]/gn", | 
 |     "infra_step": true, | 
 |     "name": "git.cherry-pick 123456/7", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "cipd", | 
 |       "ensure", | 
 |       "-root", | 
 |       "[START_DIR]/cipd", | 
 |       "-ensure-file", | 
 |       "infra/ninja/${platform} version:1.8.2\nfuchsia/clang/${platform} git_revision:b920a7f65b13237dc4d5b2b836b29a954fff440a", | 
 |       "-json-output", | 
 |       "/path/to/tmp/json" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "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-git_revision:b92\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"package\": \"fuchsia/clang/resolved-platform\"@@@", | 
 |       "@@@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", | 
 |       "ensure", | 
 |       "-root", | 
 |       "[CACHE]/macos_sdk", | 
 |       "-ensure-file", | 
 |       "infra/tools/mac_toolchain/${platform} git_revision:434f5462a77e7103f9d610fa5cabc426bb21502e", | 
 |       "-json-output", | 
 |       "/path/to/tmp/json" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "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-git_revision:434\", @@@", | 
 |       "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/mac_toolchain/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": [ | 
 |       "[CACHE]/macos_sdk/mac_toolchain", | 
 |       "install", | 
 |       "-kind", | 
 |       "mac", | 
 |       "-xcode-version", | 
 |       "10b61", | 
 |       "-output-dir", | 
 |       "[CACHE]/macos_sdk/XCode.app" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "name": "install xcode" | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "sudo", | 
 |       "xcode-select", | 
 |       "--switch", | 
 |       "[CACHE]/macos_sdk/XCode.app" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "name": "select XCode" | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "xcrun", | 
 |       "--show-sdk-path" | 
 |     ], | 
 |     "name": "xcrun", | 
 |     "stdout": "/path/to/tmp/", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_LOG_LINE@raw_io.output[sdk-path]@/some/xcode/path@@@", | 
 |       "@@@STEP_LOG_END@raw_io.output[sdk-path]@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "debug" | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "debug.build", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "python", | 
 |       "-u", | 
 |       "[START_DIR]/gn/build/gen.py", | 
 |       "-d" | 
 |     ], | 
 |     "cwd": "[START_DIR]/gn", | 
 |     "env": { | 
 |       "AR": "[START_DIR]/cipd/bin/llvm-ar", | 
 |       "CC": "[START_DIR]/cipd/bin/clang", | 
 |       "CFLAGS": "--sysroot=/some/xcode/path", | 
 |       "CXX": "[START_DIR]/cipd/bin/clang++", | 
 |       "LDFLAGS": "--sysroot=/some/xcode/path -nostdlib++ [START_DIR]/cipd/lib/libc++.a" | 
 |     }, | 
 |     "name": "debug.build.generate", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "[START_DIR]/cipd/ninja", | 
 |       "-C", | 
 |       "[START_DIR]/gn/out" | 
 |     ], | 
 |     "cwd": "[START_DIR]/gn", | 
 |     "env": { | 
 |       "AR": "[START_DIR]/cipd/bin/llvm-ar", | 
 |       "CC": "[START_DIR]/cipd/bin/clang", | 
 |       "CFLAGS": "--sysroot=/some/xcode/path", | 
 |       "CXX": "[START_DIR]/cipd/bin/clang++", | 
 |       "LDFLAGS": "--sysroot=/some/xcode/path -nostdlib++ [START_DIR]/cipd/lib/libc++.a" | 
 |     }, | 
 |     "name": "debug.build.ninja", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "[START_DIR]/gn/out/gn_unittests" | 
 |     ], | 
 |     "name": "debug.test", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "release" | 
 |   }, | 
 |   { | 
 |     "cmd": [], | 
 |     "name": "release.build", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "python", | 
 |       "-u", | 
 |       "[START_DIR]/gn/build/gen.py", | 
 |       "--use-lto", | 
 |       "--use-icf" | 
 |     ], | 
 |     "cwd": "[START_DIR]/gn", | 
 |     "env": { | 
 |       "AR": "[START_DIR]/cipd/bin/llvm-ar", | 
 |       "CC": "[START_DIR]/cipd/bin/clang", | 
 |       "CFLAGS": "--sysroot=/some/xcode/path", | 
 |       "CXX": "[START_DIR]/cipd/bin/clang++", | 
 |       "LDFLAGS": "--sysroot=/some/xcode/path -nostdlib++ [START_DIR]/cipd/lib/libc++.a" | 
 |     }, | 
 |     "name": "release.build.generate", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "[START_DIR]/cipd/ninja", | 
 |       "-C", | 
 |       "[START_DIR]/gn/out" | 
 |     ], | 
 |     "cwd": "[START_DIR]/gn", | 
 |     "env": { | 
 |       "AR": "[START_DIR]/cipd/bin/llvm-ar", | 
 |       "CC": "[START_DIR]/cipd/bin/clang", | 
 |       "CFLAGS": "--sysroot=/some/xcode/path", | 
 |       "CXX": "[START_DIR]/cipd/bin/clang++", | 
 |       "LDFLAGS": "--sysroot=/some/xcode/path -nostdlib++ [START_DIR]/cipd/lib/libc++.a" | 
 |     }, | 
 |     "name": "release.build.ninja", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@2@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "[START_DIR]/gn/out/gn_unittests" | 
 |     ], | 
 |     "name": "release.test", | 
 |     "~followup_annotations": [ | 
 |       "@@@STEP_NEST_LEVEL@1@@@" | 
 |     ] | 
 |   }, | 
 |   { | 
 |     "cmd": [ | 
 |       "sudo", | 
 |       "xcode-select", | 
 |       "--reset" | 
 |     ], | 
 |     "infra_step": true, | 
 |     "name": "reset XCode" | 
 |   }, | 
 |   { | 
 |     "jsonResult": null, | 
 |     "name": "$result" | 
 |   } | 
 | ] |