318 lines
7.0 KiB
Go
318 lines
7.0 KiB
Go
package serv
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import (
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"fmt"
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"os"
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"path"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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"github.com/dosco/super-graph/internal/serv/internal/migrate"
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"github.com/spf13/cobra"
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)
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var newMigrationText = `-- Write your migrate up statements here
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---- create above / drop below ----
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-- Write your migrate down statements here. If this migration is irreversible
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-- Then delete the separator line above.
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`
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func cmdDBSetup(cmd *cobra.Command, args []string) {
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initConfOnce()
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cmdDBCreate(cmd, []string{})
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cmdDBMigrate(cmd, []string{"up"})
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sfile := path.Join(conf.cpath, conf.SeedFile)
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_, err := os.Stat(sfile)
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if err == nil {
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cmdDBSeed(cmd, []string{})
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return
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}
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if !os.IsNotExist(err) {
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log.Fatalf("ERR unable to check if '%s' exists: %s", sfile, err)
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}
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log.Printf("WRN failed to read seed file '%s'", sfile)
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}
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func cmdDBReset(cmd *cobra.Command, args []string) {
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initConfOnce()
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if conf.Production {
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log.Fatalln("ERR db:reset does not work in production")
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}
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cmdDBDrop(cmd, []string{})
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cmdDBSetup(cmd, []string{})
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}
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func cmdDBCreate(cmd *cobra.Command, args []string) {
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initConfOnce()
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db, err := initDB(conf, false)
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if err != nil {
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log.Fatalf("ERR failed to connect to database: %s", err)
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}
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defer db.Close()
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sql := fmt.Sprintf(`CREATE DATABASE "%s"`, conf.DB.DBName)
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_, err = db.Exec(sql)
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if err != nil {
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log.Fatalf("ERR failed to create database: %s", err)
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}
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log.Printf("INF created database '%s'", conf.DB.DBName)
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}
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func cmdDBDrop(cmd *cobra.Command, args []string) {
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initConfOnce()
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db, err := initDB(conf, false)
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if err != nil {
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log.Fatalf("ERR failed to connect to database: %s", err)
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}
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defer db.Close()
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sql := fmt.Sprintf(`DROP DATABASE IF EXISTS "%s"`, conf.DB.DBName)
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_, err = db.Exec(sql)
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if err != nil {
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log.Fatalf("ERR failed to drop database: %s", err)
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}
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log.Printf("INF dropped database '%s'", conf.DB.DBName)
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}
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func cmdDBNew(cmd *cobra.Command, args []string) {
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if len(args) != 1 {
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cmd.Help() //nolint: errcheck
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os.Exit(1)
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}
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initConfOnce()
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name := args[0]
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m, err := migrate.FindMigrations(conf.MigrationsPath)
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if err != nil {
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log.Fatalf("ERR error loading migrations: %s", err)
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}
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mname := fmt.Sprintf("%d_%s.sql", len(m), name)
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// Write new migration
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mpath := filepath.Join(conf.MigrationsPath, mname)
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mfile, err := os.OpenFile(mpath, os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0666)
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if err != nil {
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log.Fatalf("ERR %s", err)
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}
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defer mfile.Close()
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_, err = mfile.WriteString(newMigrationText)
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if err != nil {
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log.Fatalf("ERR %s", err)
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}
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log.Printf("INR created migration '%s'", mpath)
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}
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func cmdDBMigrate(cmd *cobra.Command, args []string) {
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if len(args) == 0 {
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cmd.Help() //nolint: errcheck
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os.Exit(1)
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}
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initConfOnce()
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dest := args[0]
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conn, err := initDB(conf, true)
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if err != nil {
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log.Fatalf("ERR failed to connect to database: %s", err)
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}
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defer conn.Close()
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m, err := migrate.NewMigrator(conn, "schema_version")
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if err != nil {
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log.Fatalf("ERR failed to initializing migrator: %s", err)
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}
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m.Data = getMigrationVars()
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err = m.LoadMigrations(path.Join(conf.cpath, conf.MigrationsPath))
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if err != nil {
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log.Fatalf("ERR failed to load migrations: %s", err)
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}
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if len(m.Migrations) == 0 {
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log.Fatalf("ERR no migrations found")
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}
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m.OnStart = func(sequence int32, name, direction, sql string) {
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log.Printf("INF %s executing %s %s\n%s\n\n",
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time.Now().Format("2006-01-02 15:04:05"), name, direction, sql)
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}
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var currentVersion int32
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currentVersion, err = m.GetCurrentVersion()
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if err != nil {
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fmt.Fprintf(os.Stderr, "Unable to get current version:\n %v\n", err)
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os.Exit(1)
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}
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mustParseDestination := func(d string) int32 {
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var n int64
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n, err = strconv.ParseInt(d, 10, 32)
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if err != nil {
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log.Fatalf("ERR invalid destination: %s", err)
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}
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return int32(n)
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}
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if dest == "up" {
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err = m.Migrate()
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} else if dest == "down" {
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err = m.MigrateTo(currentVersion - 1)
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} else if len(dest) >= 3 && dest[0:2] == "-+" {
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err = m.MigrateTo(currentVersion - mustParseDestination(dest[2:]))
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if err == nil {
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err = m.MigrateTo(currentVersion)
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}
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} else if len(dest) >= 2 && dest[0] == '-' {
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err = m.MigrateTo(currentVersion - mustParseDestination(dest[1:]))
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} else if len(dest) >= 2 && dest[0] == '+' {
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err = m.MigrateTo(currentVersion + mustParseDestination(dest[1:]))
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} else {
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cmd.Help() //nolint: errcheck
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os.Exit(1)
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}
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if err != nil {
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log.Fatalf("ERR %s", err)
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// if err, ok := err.(m.MigrationPgError); ok {
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// if err.Detail != "" {
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// log.Fatalf("ERR %s", err.Detail)
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// }
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// if err.Position != 0 {
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// ele, err := ExtractErrorLine(err.Sql, int(err.Position))
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// if err != nil {
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// log.Fatalf("ERR %s", err)
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// }
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// log.Fatalf("INF line %d, %s%s", ele.LineNum, ele.Text)
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// }
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// }
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}
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log.Println("INF migration done")
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}
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func cmdDBStatus(cmd *cobra.Command, args []string) {
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initConfOnce()
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db, err := initDB(conf, true)
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if err != nil {
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log.Fatalf("ERR failed to connect to database: %s", err)
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}
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defer db.Close()
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m, err := migrate.NewMigrator(db, "schema_version")
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if err != nil {
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log.Fatalf("ERR failed to initialize migrator: %s", err)
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}
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m.Data = getMigrationVars()
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err = m.LoadMigrations(conf.MigrationsPath)
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if err != nil {
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log.Fatalf("ERR failed to load migrations: %s", err)
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}
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if len(m.Migrations) == 0 {
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log.Fatalf("ERR no migrations found")
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}
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mver, err := m.GetCurrentVersion()
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if err != nil {
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log.Fatalf("ERR failed to retrieve migration: %s", err)
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}
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var status string
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behindCount := len(m.Migrations) - int(mver)
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if behindCount == 0 {
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status = "up to date"
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} else {
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status = "migration(s) pending"
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}
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log.Printf("INF status: %s, version: %d of %d, host: %s, database: %s",
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status, mver, len(m.Migrations), conf.DB.Host, conf.DB.DBName)
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}
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type ErrorLineExtract struct {
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LineNum int // Line number starting with 1
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ColumnNum int // Column number starting with 1
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Text string // Text of the line without a new line character.
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}
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// ExtractErrorLine takes source and character position extracts the line
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// number, column number, and the line of text.
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//
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// The first character is position 1.
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func ExtractErrorLine(source string, position int) (ErrorLineExtract, error) {
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ele := ErrorLineExtract{LineNum: 1}
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if position > len(source) {
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return ele, fmt.Errorf("position (%d) is greater than source length (%d)", position, len(source))
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}
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lines := strings.SplitAfter(source, "\n")
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for _, ele.Text = range lines {
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if position-len(ele.Text) < 1 {
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ele.ColumnNum = position
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break
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}
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ele.LineNum += 1
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position -= len(ele.Text)
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}
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ele.Text = strings.TrimSuffix(ele.Text, "\n")
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return ele, nil
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}
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func getMigrationVars() map[string]interface{} {
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return map[string]interface{}{
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"app_name": strings.Title(conf.AppName),
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"app_name_slug": strings.ToLower(strings.Replace(conf.AppName, " ", "_", -1)),
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"env": strings.ToLower(os.Getenv("GO_ENV")),
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}
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}
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func initConfOnce() {
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var err error
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if conf != nil {
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return
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}
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conf, err = initConf()
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if err != nil {
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log.Fatalf("ERR failed to read config: %s", err)
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}
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}
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