build(migrations): add a program to run migrations on the database th…

…at extracts the data from env vars

cmd/dbmigrate/main.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"log"
+
+	"github.com/danvergara/dblab/pkg/config"
+	"github.com/golang-migrate/migrate/v4"
+	_ "github.com/golang-migrate/migrate/v4/database/mysql"
+	_ "github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/source/file"
+)
+
+func main() {
+	cfg := config.Get()
+
+	direction := cfg.GetMigration()
+	if direction != "down" && direction != "up" {
+		log.Println("-migrate accepts [up, down] values only")
+		return
+	}
+
+	m, err := migrate.New("file://db/migrations", cfg.GetDBConnStr())
+	if err != nil {
+		log.Printf("%s", err)
+		return
+	}
+
+	if direction == "up" {
+		if err := m.Up(); err != nil {
+			log.Printf("failed migrate up: %s", err)
+			return
+		}
+	}
+
+	if direction == "down" {
+		if err := m.Down(); err != nil {
+			log.Printf("failed migrate down: %s", err)
+			return
+		}
+	}
+}

go.mod

@@ -3,13 +3,27 @@ module github.com/danvergara/dblab
 go 1.16
 
 require (
+	contrib.go.opencensus.io/exporter/stackdriver v0.6.0 // indirect
+	git.apache.org/thrift.git v0.0.0-20180924222215-a9235805469b // indirect
+	github.com/cznic/ql v1.2.0 // indirect
+	github.com/go-ini/ini v1.39.0 // indirect
 	github.com/go-sql-driver/mysql v1.6.0 // indirect
+	github.com/golang-migrate/migrate/v4 v4.14.1 // indirect
+	github.com/golang/lint v0.0.0-20180702182130-06c8688daad7 // indirect
+	github.com/googleapis/gax-go v2.0.0+incompatible // indirect
+	github.com/gotestyourself/gotestyourself v2.1.0+incompatible // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 // indirect
+	github.com/jackc/pgx v3.2.0+incompatible // indirect
 	github.com/jmoiron/sqlx v1.3.3 // indirect
 	github.com/jroimartin/gocui v0.4.0 // indirect
+	github.com/kshvakov/clickhouse v1.3.4 // indirect
 	github.com/lib/pq v1.10.0 // indirect
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/nsf/termbox-go v1.1.0 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/openzipkin/zipkin-go v0.1.1 // indirect
 	github.com/spf13/cobra v1.1.3
 	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.7.0