78 lines
1.7 KiB
Go
78 lines
1.7 KiB
Go
//go:build ignore
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package main
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import (
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"context"
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"database/sql"
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"flag"
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"fmt"
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"log"
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"bj_power_mes/ent"
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"bj_power_mes/internal/db"
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"entgo.io/ent/dialect"
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entsql "entgo.io/ent/dialect/sql"
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"entgo.io/ent/dialect/sql/schema"
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_ "github.com/jackc/pgx/v5/stdlib"
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"github.com/zeromicro/go-zero/core/conf"
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)
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// 建表工具：DSN 一律从 etc 配置文件读取，不硬编码
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// 用法（在 bj_power_mes 目录下）：go run schema/tools/migrate.go
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var (
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client *ent.Client
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ctx = context.Background()
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configFile = flag.String("config", "etc/bj_power_mes-api.yaml", "配置文件路径")
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)
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// migrateConf 与主配置结构一致，只取 Database 段
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type migrateConf struct {
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Database db.DatabaseConf
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}
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func setUp() {
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var c migrateConf
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conf.MustLoad(*configFile, &c)
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dsn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
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c.Database.Host, c.Database.Port, c.Database.User, c.Database.Password, c.Database.Dbname)
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db, err := sql.Open("pgx", dsn)
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if err != nil {
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log.Fatal(err)
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}
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if _, err = db.Query("select 1"); err != nil {
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log.Fatal(err)
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}
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drv := entsql.OpenDB(dialect.Postgres, db)
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client = ent.NewClient(ent.Driver(drv))
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}
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func tearDown() {
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if client != nil {
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_ = client.Close()
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}
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}
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func main() {
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flag.Parse()
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setUp()
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defer tearDown()
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// 只建新表/加列，不删列，保证生产数据安全
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if err := client.Debug().Schema.Create(
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context.Background(),
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schema.WithDropIndex(true),
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schema.WithDropColumn(false),
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schema.WithDialect(dialect.Postgres),
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schema.WithForeignKeys(false),
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); err != nil {
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log.Fatalf("failed creating schema resources: %v", err)
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}
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log.Println("schemas migrated successfully!")
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} |