Merge branch 'pingcap:master' into master

.bazelrc

@@ -0,0 +1,30 @@
+startup --host_jvm_args=-Xmx4g
+startup --unlimit_coredumps
+dump: --http_connector_attempts=2
+dump: --http_connector_retry_max_timeout=5s
+run:ci --color=yes
+
+build --announce_rc
+build --experimental_guard_against_concurrent_changes
+build --experimental_remote_merkle_tree_cache
+build --java_language_version=17
+build --java_runtime_version=17
+build --tool_java_language_version=17
+build --tool_java_runtime_version=17
+build --incompatible_strict_action_env --incompatible_enable_cc_toolchain_resolution
+build:ci --color=yes
+build:ci --experimental_remote_cache_compression
+build:release --workspace_status_command=./build/print-workspace-status.sh --stamp
+build:release --config=ci
+build:race --config=ci
+build:race --@io_bazel_rules_go//go/config:race --test_env=GORACE=halt_on_error=1 --test_sharding_strategy=disabled
+test --test_env=TZ=Asia/Shanghai
+test --test_output=errors --test_summary=detailed
+test:ci --color=yes
+test:ci --verbose_failures --test_verbose_timeout_warnings
+test:ci --test_env=GO_TEST_WRAP_TESTV=1
+test:ci --experimental_ui_max_stdouterr_bytes=268435456
+test:ci --test_timeout=150,300,900,3600
+test:race --test_timeout=1200,6000,18000,72000
+
+try-import /data/bazel

.codecov.yml

@@ -1,21 +1,30 @@
 codecov:
+  require_ci_to_pass: no
   notify:
-    require_ci_to_pass: yes
+    wait_for_ci: no
 
 coverage:
   precision: 4
   round: down
   range: "65...90"
 
+  # status:
+  #   project:
+  #     default:
+  #       threshold: 0.2 #Allow the coverage to drop by threshold%, and posting a success status.
+  #   patch:
+  #     default:
+  #       target: 0% # trial operation
+
+  # Ref: https://docs.codecov.com/docs/commit-status#disabling-a-status
   status:
-    project: 
-      default:
-        threshold: 0.2 #Allow the coverage to drop by threshold%, and posting a success status.
-    patch: 
-      default:
-        target: 0% # trial operation
+    project: off # disable it
+    patch: off # disable it
     changes: no
 
+# Ref: https://docs.codecov.com/docs/github-checks#disabling-github-checks-completely-via-yaml
+github_checks: false
+
 parsers:
   gcov:
     branch_detection:
@@ -25,22 +34,57 @@ parsers:
       macro: no
 
 comment:
-  layout: "header, diff"
+  layout: "header, diff, flags, components"
   behavior: default
   require_changes: no
 
+component_management:
+  default_rules:  # default rules that will be inherited by all components
+    statuses:
+      - type: project # in this case every component that doens't have a status defined will have a project type one
+        target: auto
+  individual_components:
+    - component_id: component_dumpling # this is an identifier that should not be changed
+      name: dumpling # this is a display name, and can be changed freely
+      paths:
+        - dumpling/**
+    - component_id: component_parser
+      name: parser
+      paths:
+        - parser/**
+    - component_id: component_br
+      name: br
+      paths:
+        - br/**
+    # more components.
+
+flag_management:
+  default_rules: # the rules that will be followed for any flag added, generally
+    carryforward: true
+    statuses:
+      - type: project
+        target: auto
+      - type: patch
+        target: 85%
+
 ignore:
   - "LICENSES"
-  - "*_test.go"       
+  - "*_test.go"
   - ".git"
   - "*.yml"
   - "*.md"
-  - "cmd/.*"       
+  - "cmd/.*"
   - "docs/.*"
   - "vendor/.*"
   - "ddl/failtest/.*"
   - "ddl/testutil/.*"
   - "executor/seqtest/.*"
   - "metrics/.*"
   - "expression/generator/.*"
+  - "br/pkg/mock/.*"
+  - "testkit/.*"
+  - "server/internal/testutil/.*"
+  - "statistics/handle/cache/internal/testutil/.*"
+  - "session/testutil.go"
+  - "store/mockstore/unistore/testutil.go"
 

.dockerignore

@@ -0,0 +1,10 @@
+.git/
+bazel-bin/
+bazel-out/
+bazel-tidb/
+bazel-testlogs/
+bin/
+tidb-server/tidb-server
+*.test.bin
+cmd/
+Dockerfile

.gitattributes

@@ -3,3 +3,8 @@
 
 # Declare files that will always have LF line endings on checkout.
 *.y text eol=lf
+
+*.result diff
+
+util/collate/unicode_0*_ci.go linguist-generated=true
+util/collate/ucadata/unicode_*_data.go linguist-generated=true

.github/CODEOWNERS

@@ -1,17 +1,5 @@
-/distsql @pingcap/co-exec
-/executor @pingcap/co-exec
-/expression @pingcap/co-exec
-/types @pingcap/co-exec
-/util/chunk @pingcap/co-exec
-/util/disk @pingcap/co-exec
-/util/execdetails @pingcap/co-exec
-/util/expensivequery @pingcap/co-exec
-/util/filesort @pingcap/co-exec
-/util/memory @pingcap/co-exec
-/util/sqlexec @pingcap/co-exec
-
-/planner @pingcap/co-planner
-/statistics @pingcap/co-planner
-/util/ranger @pingcap/co-planner
-/util/plancodec @pingcap/co-planner
-/bindinfo @pingcap/co-planner
+# Require review from domain experts when the PR modified significant config files.
+/sessionctx/variable @pingcap/tidb-configuration-reviewer
+/config/config.toml.example @pingcap/tidb-configuration-reviewer
+/session/bootstrap.go @pingcap/tidb-configuration-reviewer
+/telemetry/ @pingcap/telemetry-reviewer

.github/ISSUE_TEMPLATE/bug-report.md

@@ -1,24 +1,22 @@
 ---
 name: "\U0001F41B Bug Report"
-about: Something isn't working as expected
+about: As a User, I want to report a Bug.
 labels: type/bug
 ---
 
 ## Bug Report
 
 Please answer these questions before submitting your issue. Thanks!
 
-1. What did you do?
-<!--If possible, provide a recipe for reproducing the error.-->
+### 1. Minimal reproduce step (Required)
 
+<!-- a step by step guide for reproducing the bug. -->
 
-2. What did you expect to see?
+### 2. What did you expect to see? (Required)
 
+### 3. What did you see instead (Required)
 
+### 4. What is your TiDB version? (Required)
 
-3. What did you see instead?
-
-
-
-4. What version of TiDB are you using (`tidb-server -V` or run `select tidb_version();` on TiDB)?
+<!-- Paste the output of SELECT tidb_version() -->
 

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: TiDB Forum
+    url: https://ask.pingcap.com/
+    about: Ask a question on the TiDB Forum
+  - name: TiDB Forum(Chinese)
+    url: https://asktug.com/
+    about: Ask a question on the TiDB user group (Chinese)

.github/ISSUE_TEMPLATE/enhancement.md

@@ -0,0 +1,7 @@
+---
+name: "\U0001F680 Enhancement"
+about: As a TiDB developer, I want to make an enhancement.
+labels: type/enhancement
+---
+
+## Enhancement

.github/ISSUE_TEMPLATE/feature-request.md

@@ -1,7 +1,7 @@
 ---
 name: "\U0001F680 Feature Request"
-about: I have a suggestion
-labels: type/enhancement
+about: As a user, I want to request a New Feature on the product.
+labels: type/feature-request
 ---
 
 ## Feature Request
@@ -16,4 +16,4 @@ labels: type/enhancement
 <!-- A clear and concise description of any alternative solutions or features you've considered. -->
 
 **Teachability, Documentation, Adoption, Migration Strategy:**
-<!-- If you can, explain some scenarios how users might use this, situations it would be helpful in. Any API designs, mockups, or diagrams are also helpful. -->
+<!-- If you can, explain some scenarios how users might use this, situations it would be helpful in. Any API designs, mockups, or diagrams are also helpful. -->

.github/dependabot.yml

@@ -0,0 +1,19 @@
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "friday"
+      time: "12:00"
+      timezone: "Asia/Shanghai"
+    allow:
+      - dependency-name: "golang.org/*"
+      - dependency-name: "github.com/golangci/golangci-lint"
+      - dependency-name: "github.com/prometheus/*"
+      - dependency-name: "go.uber.org/*"
+    open-pull-requests-limit: 2
+  - package-ecosystem: "gomod"
+    directory: "/parser"
+    schedule:
+      interval: "weekly"