ci: Add CODEOWNERS, reduce required reviewers to 1 (#4100)

.github/CODEOWNERS

+# Legacy codebases
+/batch-submitter                @mslipper @tynes
+/bss-core                       @mslipper @tynes
+/gas-oracle                     @tynes @smartcontracts
+/integration-tests              @mslipper @tynes
+/l2geth                         @tynes @smartcontracts
+/l2geth-exporter                @tynes @smartcontracts
+/packages/actor-tests           @mslipper
+/packages/common-ts             @tynes @smartcontracts
+/packages/contracts             @tynes @smartcontracts @maurelian
+/packages/contracts-bedrock     @tynes @smartcontracts @maurelian
+/packages/contracts-governance  @tynes @smartcontracts @maurelian
+/packages/contracts-periphery   @tynes @smartcontracts @maurelian
+/packages/core-utils            @tynes @smartcontracts
+/packages/data-transport-layer  @tynes @smartcontracts
+/packages/drippie-mon           @smartcontracts
+/packages/fault-detector        @tynes @smartcontracts
+/packages/hardhat-deploy-config @tynes @smartcontracts @maurelian
+/packages/message-relayer       @tynes @smartcontracts
+/packages/migration-data        @tynes @smartcontracts @mslipper
+/packages/replica-healthcheck   @tynes @smartcontracts @mslipper
+/packages/sdk                   @smartcontracts @roninjin10 @nickbalestra
+
+# Bedrock codebases
+/bedrock-devnet @mslipper
+/op-batcher     @protolambda @trianglesphere
+/op-chain-ops   @protolambda @trianglesphere @tynes @mslipper
+/op-e2e         @protolambda @trianglesphere @tynes @mslipper
+/op-node        @protolambda @trianglesphere
+/op-proposer    @protolambda @trianglesphere
+/op-service     @protolambda @trianglesphere @mslipper
+
+# Ops
+/.changeset   @mslipper @zhwrd
+/.circleci    @mslipper @zhwrd
+/.github      @mslipper @zhwrd
+/ops          @mslipper @zhwrd
+/ops-bedrock  @mslipper @zhwrd
+
+# Misc
+/proxyd           @mslipper @Inphi @tynes
+/indexer          @mslipper @nickbalestra @roninjin10
+/infra            @mslipper @zhwrd
+/specs            @norswap @trianglesphere @tynes
+/endpoint-monitor @zhwrd

.github/label-requires-reviews.yml

----
-  - label: 2-reviewers
-    reviews: 2

.github/labeler.yml

 ---
-2-reviewers:
-  - '.github/**/*'
-  - 'l2geth/**/*'
-  - 'ops/**/*'
-  - 'packages/batch-submitter/**/*'
-  - 'packages/contracts/**/*'
-  - 'packages/contracts-periphery/**/*'
-  - 'packages/contracts-bedrock/**/*'
-  - 'packages/data-transport-layer/**/*'
-  - 'packages/drippie-mon/**/*'
-  - 'packages/message-relayer/**/*'
-  - 'packages/fault-detector/**/*'
-  - 'patches/**/*'
-
-M-ci:
-  - any: ['.github/**/*', '.circleci/**/*']
-
-M-l2geth:
-  - any: ['l2geth/**/*']
-
-M-integration:
-  - any: ['integration-tests/**/*']
-
-M-batch-submitter:
-  - any: ['packages/batch-submitter/**/*']
-
-M-contracts:
-  - any: ['packages/contracts/**/*']
-
-M-contracts-periphery:
-  - any: ['packages/contracts-periphery/**/*']
-
-M-contracts-bedrock:
-  - any: ['packages/contracts-bedrock/**/*']
-
-M-core-utils:
-  - any: ['packages/core-utils/**/*']
-
-M-dtl:
-  - any: ['packages/data-transport-layer/**/*']
-
-M-sdk:
-  - any: ['packages/sdk/**/*']
-
-M-ops:
-  - any: ['ops/**/*']
-
 C-Protocol-Critical:
   - 'packages/data-transport-layer/**/*.ts'
   - 'packages/contracts/**/*.sol'

.github/mergify.yml

@@ -8,7 +8,7 @@ pull_request_rules:
     conditions:
       - and:
         - "#review-threads-unresolved=0"
-        - "#approved-reviews-by>=2"
+        - "#approved-reviews-by>=1"
         - "#changes-requested-reviews-by=0"
         - "label!=do-not-merge"
         - "label!=mergify-ignore"

.github/workflows/label-requires-reviews.yml

-name: Label Reviews
-on:
-  pull_request_review:
-
-jobs:
-  require-reviewers:
-    runs-on: ubuntu-18.04
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          ref: develop
-
-      - name: Require-reviewers
-        uses: travelperk/label-requires-reviews-action@v0.1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}