feat: init new populator

.gitignore

@@ -0,0 +1,18 @@
+# macOS
+.DS_Store
+
+# Window
+*.exe
+
+# IntelliJ
+.idea
+
+# VSCode
+.vscode
+
+# Go
+coverage.out
+vendor
+
+# GoReleaser
+dist

.golangci.yml

@@ -0,0 +1,65 @@
+run:
+  tests: false
+  skip-dirs:
+    - ".*test.*"
+    - ".*mock.*"
+    - ".*generated.*"
+    - ".*example.*"
+  skip-files:
+    - ".*Mock.*"
+    - ".*_mock.*"
+    - ".*_generated.*"
+
+output:
+  sort-results: true
+
+linters:
+  disable-all: true
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - staticcheck
+    - typecheck
+    - unused
+    - errname
+    - errorlint
+    - execinquery
+    - goerr113
+    - gofumpt
+    - gosec
+    - importas
+    - makezero
+    - nilnil
+    - prealloc
+    - unconvert
+  fast: true
+
+linters-settings:
+  gosec:
+    excludes:
+      - G402
+      - G501
+      - G505
+    exclude-generated: true
+  govet:
+    check-shadowing: false
+    disable-all: true
+    enable:
+      - assign
+      - atomic
+      - bools
+      - buildtag
+      - composites
+      - copylocks
+      - fieldalignment
+      - httpresponse
+      - loopclosure
+      - lostcancel
+      - nilfunc
+      - printf
+      - unmarshal
+      - unreachable
+      - unusedresult
+  staticcheck:
+    checks: ["all", "-SA1019"]

Makefile

@@ -0,0 +1,11 @@
+.PHONY: all test-color lint
+
+all: test-color lint
+	go mod tidy
+
+test-color:
+	go install github.com/haunt98/go-test-color@latest
+	go-test-color -race -failfast ./...
+
+lint:
+	golangci-lint run ./...

cmd/populatedb/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("Hello, World!")
+}

go.mod

@@ -0,0 +1,80 @@
+module github.com/haunt98/populatedb-go
+
+go 1.18
+
+require (
+	github.com/go-sql-driver/mysql v1.6.0
+	github.com/k1LoW/tbls v1.56.6
+)
+
+require (
+	cloud.google.com/go v0.102.0 // indirect
+	cloud.google.com/go/bigquery v1.25.0 // indirect
+	cloud.google.com/go/compute v1.7.0 // indirect
+	cloud.google.com/go/iam v0.3.0 // indirect
+	cloud.google.com/go/spanner v1.28.0 // indirect
+	github.com/Azure/azure-pipeline-go v0.2.3 // indirect
+	github.com/Azure/azure-storage-blob-go v0.14.0 // indirect
+	github.com/apache/arrow/go/arrow v0.0.0-20211112161151-bc219186db40 // indirect
+	github.com/aquasecurity/go-version v0.0.0-20210121072130-637058cfe492 // indirect
+	github.com/aws/aws-sdk-go v1.42.23 // indirect
+	github.com/aws/aws-sdk-go-v2 v1.11.2 // indirect
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.0.0 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.6.4 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.7.4 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.2 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.0.2 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.5.0 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.5.2 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.9.2 // indirect
+	github.com/aws/aws-sdk-go-v2/service/s3 v1.21.0 // indirect
+	github.com/aws/smithy-go v1.9.0 // indirect
+	github.com/fatih/color v1.13.0 // indirect
+	github.com/form3tech-oss/jwt-go v3.2.5+incompatible // indirect
+	github.com/gabriel-vasile/mimetype v1.4.0 // indirect
+	github.com/gertd/go-pluralize v0.1.7 // indirect
+	github.com/go-stack/stack v1.8.0 // indirect
+	github.com/goccy/go-yaml v1.9.4 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/snappy v0.0.3 // indirect
+	github.com/google/flatbuffers v2.0.5+incompatible // indirect
+	github.com/google/go-cmp v0.5.8 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.1.0 // indirect
+	github.com/googleapis/gax-go/v2 v2.4.0 // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/k1LoW/duration v1.1.0 // indirect
+	github.com/k1LoW/expand v0.1.0 // indirect
+	github.com/klauspost/compress v1.13.6 // indirect
+	github.com/lib/pq v1.10.4 // indirect
+	github.com/mattn/go-colorable v0.1.12 // indirect
+	github.com/mattn/go-ieproxy v0.0.1 // indirect
+	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/minio/pkg v1.1.9 // indirect
+	github.com/pierrec/lz4/v4 v4.1.12 // indirect
+	github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/sirupsen/logrus v1.8.1 // indirect
+	github.com/snowflakedb/gosnowflake v1.6.5 // indirect
+	github.com/stretchr/testify v1.8.0 // indirect
+	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
+	github.com/xdg-go/scram v1.0.2 // indirect
+	github.com/xdg-go/stringprep v1.0.2 // indirect
+	github.com/xo/dburl v0.9.0 // indirect
+	github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect
+	go.mongodb.org/mongo-driver v1.8.4 // indirect
+	go.opencensus.io v0.23.0 // indirect
+	golang.org/x/crypto v0.0.0-20211209193657-4570a0811e8b // indirect
+	golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e // indirect
+	golang.org/x/oauth2 v0.0.0-20220622183110-fd043fe589d2 // indirect
+	golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f // indirect
+	golang.org/x/sys v0.0.0-20220624220833-87e55d714810 // indirect
+	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/xerrors v0.0.0-20220609144429-65e65417b02f // indirect
+	google.golang.org/api v0.86.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/genproto v0.0.0-20220624142145-8cd45d7dbd1f // indirect
+	google.golang.org/grpc v1.47.0 // indirect
+	google.golang.org/protobuf v1.28.0 // indirect
+)

internal/populatedb/populatedb.go

@@ -0,0 +1,69 @@
+package populatedb
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"net/url"
+	"time"
+
+	"github.com/go-sql-driver/mysql"
+	tblsconfig "github.com/k1LoW/tbls/config"
+	tblsdatasource "github.com/k1LoW/tbls/datasource"
+	tblsschema "github.com/k1LoW/tbls/schema"
+)
+
+const (
+	dialectMySQL = "mysql"
+)
+
+var ErrDialectNotSupport = errors.New("dialect not support ")
+
+type Populator interface{}
+
+type populator struct {
+	db         *sql.DB
+	tblsSchema *tblsschema.Schema
+}
+
+func NewPopulator(dbDialect, dbURL string) (Populator, error) {
+	if dbDialect != dialectMySQL {
+		return nil, fmt.Errorf("not support [%s]: %w", dbDialect, ErrDialectNotSupport)
+	}
+
+	// https://go.dev/doc/tutorial/database-access
+	mysqlCfg, err := mysql.ParseDSN(dbURL)
+	if err != nil {
+		return nil, fmt.Errorf("mysql: failed to parse dsn [%s]: %w", dbURL, err)
+	}
+
+	// https://github.com/go-sql-driver/mysql#timetime-support
+	mysqlCfg.ParseTime = true
+	mysqlCfg.AllowNativePasswords = true
+	mysqlCfg.Loc = time.UTC
+
+	mysqlURL := mysqlCfg.FormatDSN()
+	db, err := sql.Open(dbDialect, mysqlURL)
+	if err != nil {
+		return nil, fmt.Errorf("sql: failed to open [%s]: %w", mysqlURL, err)
+	}
+
+	if err := db.Ping(); err != nil {
+		return nil, fmt.Errorf("database: failed to ping [%s] : %w", mysqlURL, err)
+	}
+
+	// https://github.com/k1LoW/tbls
+	// https://stackoverflow.com/q/48671938
+	tblsURL := "mysql://" + mysqlCfg.User + ":" + url.QueryEscape(mysqlCfg.Passwd) + "@" + mysqlCfg.Addr + "/" + mysqlCfg.DBName
+	tblsSchema, err := tblsdatasource.Analyze(tblsconfig.DSN{
+		URL: tblsURL,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("tbls: faield to analyze [%s]: %w", tblsURL, err)
+	}
+
+	return &populator{
+		db:         db,
+		tblsSchema: tblsSchema,
+	}, nil
+}