Bump up Go to 1.19.2 (#425)

* Bump up Go to 1.19.2

* Bump up golangci-lint to 1.50.0 and fix lint errors

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         go_version:
-          - '1.18'
+          - 1.19.2
     runs-on: ubuntu-latest
     steps:
 

.github/workflows/docker-publish-latest.yml

@@ -9,10 +9,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-      - name: Set up Go 1.x
+      - name: Set up Go 1.19.2
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18
+          go-version: 1.19.2
 
       - name: Check out code
         uses: actions/checkout@v2

.github/workflows/docker-publish.yml

@@ -8,10 +8,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-      - name: Set up Go 1.x
+      - name: Set up Go 1.19.2
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18
+          go-version: 1.19.2
 
       - name: Check out code
         uses: actions/checkout@v2

.golangci.yml

@@ -37,3 +37,8 @@ linters-settings:
 
 issues:
   exclude-use-default: false
+  # Excluding configuration per-path, per-linter, per-text and per-source
+  exclude-rules:
+    - text: "G112:"
+      linters:
+        - gosec

Makefile

@@ -22,7 +22,7 @@ default: help
 tools: ## install tools for developing yorkie
 	go install github.com/gogo/protobuf/[email protected]
 	go install github.com/gogo/protobuf/[email protected]
-	go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.46.2
+	go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.50.0
 
 proto: ## generate proto files
 	protoc \

admin/client.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package admin provides the client for the admin service.
 package admin
 
 import (

api/converter/converter.go

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+// Package converter provides the converter for converting model to
+// Protobuf, bytes and vice versa.
 package converter
 
 import "errors"

api/types/id.go

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+// Package types provides the types used in the Yorkie API. This package is
+// used by both the server and the client.
 package types
 
 import (

client/client.go

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+// Package client provides the client implementation of Yorkie. It is used to
+// connect to the server and attach documents.
 package client
 
 import (

cmd/yorkie/commands.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package main is the entry point of the Yorkie CLI.
 package main
 
 import (

cmd/yorkie/config/config.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package config provides the configuration for Admin server.
 package config
 
 import (

cmd/yorkie/document/document.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package document provides the document command.
 package document
 
 import "github.com/spf13/cobra"

cmd/yorkie/project/project.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package project provides the project command.
 package project
 
 import "github.com/spf13/cobra"

go.mod

@@ -1,6 +1,6 @@
 module github.com/yorkie-team/yorkie
 
-go 1.18
+go 1.19
 
 require (
 	bou.ke/monkey v1.0.2

internal/version/version.go

@@ -1,3 +1,20 @@
+/*
+ * Copyright 2022 The Yorkie Authors. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Package version provides the version information of Yorkie.
 package version
 
 // At build time, the versions is replaced with the current version using the -X linker flag

pkg/cache/cache.go

@@ -17,6 +17,7 @@
  * https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/apimachinery/pkg/util/cache/lruexpirecache.go
  */
 
+// Package cache provides a cache implementation.
 package cache
 
 import (

pkg/document/change/change.go

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+// Package change provides the implementation of Change. Change is a set of
+// operations that can be applied to a document.
 package change
 
 import (

pkg/document/crdt/root.go

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+// Package crdt provides the implementation of the CRDT data structure.
+// The CRDT data structure is a data structure that can be replicated and
+// shared among multiple replicas.
 package crdt
 
 import (

pkg/document/document.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package document provides JSON-like document(CRDT) implementation.
 package document
 
 import (

pkg/document/json/json.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package json provides the JSON document implementation.
 package json
 
 import "github.com/yorkie-team/yorkie/pkg/document/crdt"

pkg/document/key/key.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package key provides the key implementation of the document.
 package key
 
 // Key represents a document key.

pkg/document/operations/operation.go

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+// Package operations implements the operations that can be executed on the
+// document.
 package operations
 
 import (

pkg/document/time/ticket.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package time provides logical clock and ticket for document.
 package time
 
 import (

pkg/llrb/llrb.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package llrb provides a Left-leaning Red-Black tree implementation.
 package llrb
 
 import (

pkg/pq/priority_queue.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package pq provides the priority queue implementation.
 package pq
 
 import (

pkg/splay/splay.go

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+// Package splay provides splay tree implementation. It is used to implement
+// List by using splay tree.
 package splay
 
 import (
@@ -85,8 +87,7 @@ func (t *Node[V]) hasLinks() bool {
 }
 
 // Tree is weighted binary search tree which is based on Splay tree.
-// original paper on Splay Trees:
-//  - https://www.cs.cmu.edu/~sleator/papers/self-adjusting.pdf
+// original paper on Splay Trees: https://www.cs.cmu.edu/~sleator/papers/self-adjusting.pdf
 type Tree[V Value] struct {
 	root *Node[V]
 }
@@ -388,6 +389,7 @@ func (t *Tree[V]) rightmost() *Node[V] {
 	return node
 }
 
+// Len returns the size of this Tree.
 func (t *Tree[V]) Len() int {
 	if t.root == nil {
 		return 0

pkg/units/duration.go

@@ -17,6 +17,8 @@
  * https://github.com/docker/go-units/blob/master/duration.go
  */
 
+// Package units provides a set of functions to convert between bytes and
+// human-readable formats.
 package units
 
 import (
@@ -25,7 +27,7 @@ import (
 )
 
 // HumanDuration returns a human-readable approximation of a duration
-// (eg. "About a minute", "4 hours ago", etc.).
+// (e.g. "About a minute", "4 hours ago", etc.).
 func HumanDuration(d time.Duration) string {
 	if seconds := int(d.Seconds()); seconds < 1 {
 		return "Less than a second"

server/admin/auth/token_manager.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package auth provides the authentication and authorization of the admin server.
 package auth
 
 import (

server/admin/interceptors/default.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package interceptors provides interceptors for Admin server.
 package interceptors
 
 import (

server/admin/server.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package admin provides the admin server.
 package admin
 
 import (

server/backend/backend.go

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+// Package backend provides the backend implementation of the Yorkie.
+// This package is responsible for managing the database and other
+// resources required to run Yorkie.
 package backend
 
 import (

server/backend/background/background.go

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2022 The Yorkie Authors. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Package background provides the background service. This service is used to
+// manage the background goroutines in the backend.
 package background
 
 import (

server/backend/database/database.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package database provides the database interface for the Yorkie backend.
 package database
 
 import (

server/backend/database/memory/database.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package memory implements the database interface using in-memory database.
 package memory
 
 import (

server/backend/database/mongo/client.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package mongo implements database interfaces using MongoDB.
 package mongo
 
 import (

server/backend/housekeeping/housekeeping.go

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+// Package housekeeping provides the housekeeping service. The housekeeping
+// service is responsible for deactivating clients that have not been used for
+// a long time.
 package housekeeping
 
 import (

server/backend/sync/coordinator.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package sync provides the synchronization primitives for the server.
 package sync
 
 import (

server/backend/sync/etcd/client.go

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+// Package etcd provides etcd implementation of the sync. It is used to
+// synchronize the state of the cluster.
 package etcd
 
 import (

server/backend/sync/memory/coordinator.go

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+// Package memory provides the memory implementation of the sync package.
 package memory
 
 import (