static_checks: Support Docs-Not-Needed label

Bug: b/365581180
Change-Id: If2ad95eee9409c25edae2634bf8e1853d6db033a
Reviewed-on: https://pigweed-review.googlesource.com/c/infra/recipes/+/234871
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Rob Mohr <mohrr@google.com>
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ted Pudlik <tpudlik@google.com>
diff --git a/recipes/static_checks.expected/docs.vote.json b/recipes/static_checks.expected/docs.vote.json
new file mode 100644
index 0000000..c5814c6
--- /dev/null
+++ b/recipes/static_checks.expected/docs.vote.json
@@ -0,0 +1,301 @@
+[
+  {
+    "cmd": [],
+    "name": "ensure infra/tools/luci/gerrit/${platform}"
+  },
+  {
+    "cmd": [],
+    "name": "ensure infra/tools/luci/gerrit/${platform}.get packages",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "RECIPE_MODULE[fuchsia::gerrit]/resources/cipd.ensure",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "ensure infra/tools/luci/gerrit/${platform}.get packages.read ensure file",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@",
+      "@@@STEP_LOG_LINE@cipd.ensure@infra/tools/luci/gerrit/${platform} version:pinned-version@@@",
+      "@@@STEP_LOG_END@cipd.ensure@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "ensure infra/tools/luci/gerrit/${platform}.install infra/tools/luci/gerrit",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "ensure-directory",
+      "--mode",
+      "0o777",
+      "[START_DIR]/cipd_tool/infra/tools/luci/gerrit/0e548aa33f8113a45a5b3b62201e114e98e63d00f97296912380138f44597b07"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "ensure infra/tools/luci/gerrit/${platform}.install infra/tools/luci/gerrit.ensure package directory",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "cipd",
+      "ensure",
+      "-root",
+      "[START_DIR]/cipd_tool/infra/tools/luci/gerrit/0e548aa33f8113a45a5b3b62201e114e98e63d00f97296912380138f44597b07",
+      "-ensure-file",
+      "infra/tools/luci/gerrit/${platform} version:pinned-version",
+      "-max-threads",
+      "0",
+      "-json-output",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "ensure infra/tools/luci/gerrit/${platform}.install infra/tools/luci/gerrit.ensure_installed",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@",
+      "@@@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:pinned-v\",@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/luci/gerrit/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": [
+      "[START_DIR]/cipd_tool/infra/tools/luci/gerrit/0e548aa33f8113a45a5b3b62201e114e98e63d00f97296912380138f44597b07/gerrit",
+      "change-detail",
+      "-host",
+      "https://pigweed-review.googlesource.com",
+      "-input",
+      "{\"change_id\": \"123456\", \"params\": {\"o\": [\"ALL_COMMITS\", \"ALL_REVISIONS\", \"ALL_FILES\"]}}",
+      "-output",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "change details",
+    "timeout": 600,
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"_number\": 1234,@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"current_revision\": \"HASH\",@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"labels\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"Docs-Not-Needed\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"approved\": true@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  },@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"owner\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"email\": \"nobody@example.com\"@@@",
+      "@@@STEP_LOG_LINE@json.output@  },@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"revert_of\": 0,@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"revisions\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"HASH\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"_number\": 1,@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"commit\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"message\": \"\",@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"parents\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@          {@@@",
+      "@@@STEP_LOG_LINE@json.output@            \"commit\": \"PARENT0\"@@@",
+      "@@@STEP_LOG_LINE@json.output@          }@@@",
+      "@@@STEP_LOG_LINE@json.output@        ],@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"subject\": \"\"@@@",
+      "@@@STEP_LOG_LINE@json.output@      },@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"description\": \"\",@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"files\": {}@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  }@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@STEP_LOG_LINE@json.input@{@@@",
+      "@@@STEP_LOG_LINE@json.input@  \"change_id\": \"123456\",@@@",
+      "@@@STEP_LOG_LINE@json.input@  \"params\": {@@@",
+      "@@@STEP_LOG_LINE@json.input@    \"o\": [@@@",
+      "@@@STEP_LOG_LINE@json.input@      \"ALL_COMMITS\",@@@",
+      "@@@STEP_LOG_LINE@json.input@      \"ALL_REVISIONS\",@@@",
+      "@@@STEP_LOG_LINE@json.input@      \"ALL_FILES\"@@@",
+      "@@@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/123456@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "[START_DIR]/cipd_tool/infra/tools/luci/gerrit/0e548aa33f8113a45a5b3b62201e114e98e63d00f97296912380138f44597b07/gerrit",
+      "list-change-comments",
+      "-host",
+      "https://pigweed-review.googlesource.com",
+      "-input",
+      "{\"change_id\": \"123456\"}",
+      "-output",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "list change comments",
+    "timeout": 600,
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"/PATCHSET_LEVEL\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@    {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"message\": \"\"@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  ]@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@STEP_LOG_LINE@json.input@{@@@",
+      "@@@STEP_LOG_LINE@json.input@  \"change_id\": \"123456\"@@@",
+      "@@@STEP_LOG_LINE@json.input@}@@@",
+      "@@@STEP_LOG_END@json.input@@@",
+      "@@@STEP_LINK@gerrit link@https://pigweed-review.googlesource.com/q/123456@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "TRYJOB DO NOT RETRY",
+    "~followup_annotations": [
+      "@@@SET_BUILD_PROPERTY@$recipe_engine/cq/output@{\"retry\": \"OUTPUT_RETRY_DENIED\"}@@@",
+      "@@@SET_BUILD_PROPERTY@do_not_retry@true@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checking if revert",
+    "~followup_annotations": [
+      "@@@STEP_SUMMARY_TEXT@0@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checking if merge",
+    "~followup_annotations": [
+      "@@@STEP_SUMMARY_TEXT@['PARENT0']@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checking owner account",
+    "~followup_annotations": [
+      "@@@STEP_SUMMARY_TEXT@nobody@example.com@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "check docs"
+  },
+  {
+    "cmd": [],
+    "name": "check docs.checking comments",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "check docs.checking comments.comment (0)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "check docs.found Docs-Not-Needed vote",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "check requires"
+  },
+  {
+    "cmd": [],
+    "name": "check dns"
+  },
+  {
+    "name": "$result"
+  }
+]
\ No newline at end of file
diff --git a/recipes/static_checks.py b/recipes/static_checks.py
index 7e0e15f..59fc459 100644
--- a/recipes/static_checks.py
+++ b/recipes/static_checks.py
@@ -85,6 +85,10 @@
         with api.step.nest('found No-Docs-Update-Reason'):
             return
 
+    if details['labels'].get('Docs-Not-Needed', {}).get('approved', False):
+        with api.step.nest('found Docs-Not-Needed vote'):
+            return
+
     with api.step.nest('checking changed files') as pres:
         current_revision: str = details['revisions'][
             details['current_revision']
@@ -547,6 +551,13 @@
     )
 
     yield test(
+        'vote',
+        api.checkout.try_test_data(),
+        must_run(api, 'check docs.found Docs-Not-Needed vote'),
+        votes={'Docs-Not-Needed': 'approved'},
+    )
+
+    yield test(
         'owner',
         api.checkout.try_test_data(),
         must_run(api, 'checking owner account.ignored'),