mirror of
https://github.com/beego/bee.git
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basic workflow
This commit is contained in:
ZhengYang
parent
adc9288e2f
commit
6f4c1b3a89
@ -64,8 +64,7 @@ func formatSourceCode(fpath string) {
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cmd.Run()
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}
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const MIGRATION_TPL = `
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package main
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const MIGRATION_TPL = `package main
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import (
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"time"
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172
migrate.go
172
migrate.go
@ -14,7 +14,13 @@
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package main
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import "os"
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import (
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"database/sql"
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"os"
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"os/exec"
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"path"
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"strings"
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)
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var cmdMigrate = &Command{
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UsageLine: "migrate [Command]",
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@ -34,6 +40,10 @@ bee migrate refresh
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`,
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}
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const (
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TMP_DIR = "temp"
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)
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func init() {
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cmdMigrate.Run = runMigration
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}
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@ -51,40 +61,180 @@ func runMigration(cmd *Command, args []string) {
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if len(args) == 0 {
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// run all outstanding migrations
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ColorLog("[INFO] running all outstanding migrations\n")
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ColorLog("[INFO] Running all outstanding migrations\n")
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migrateUpdate()
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} else {
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mcmd := args[0]
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switch mcmd {
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case "rollback":
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ColorLog("[INFO] rolling back the last migration operation\n")
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ColorLog("[INFO] Rolling back the last migration operation\n")
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migrateRollback()
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case "reset":
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ColorLog("[INFO] reseting all migrations\n")
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ColorLog("[INFO] Reseting all migrations\n")
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migrateReset()
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case "refresh":
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ColorLog("[INFO] refreshing all migrations\n")
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ColorLog("[INFO] Refreshing all migrations\n")
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migrateReset()
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default:
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ColorLog("[ERRO] command is missing\n")
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ColorLog("[ERRO] Command is missing\n")
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os.Exit(2)
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}
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ColorLog("[SUCC] migration successful!\n")
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ColorLog("[SUCC] Migration successful!\n")
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}
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}
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func checkForSchemaUpdateTable(driver string, connStr string) {
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db, err := sql.Open(driver, connStr)
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if err != nil {
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ColorLog("[ERRO] Could not connect to %s: %s\n", driver, connStr)
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os.Exit(2)
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}
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defer db.Close()
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if rows, err := db.Query("SHOW TABLES LIKE 'migrations'"); err != nil {
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ColorLog("[ERRO] Could not show migrations table: %s\n", err)
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os.Exit(2)
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} else if !rows.Next() {
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// no migrations table, create anew
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ColorLog("[INFO] Creating 'migrations' table...\n")
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if _, err := db.Query(MYSQL_MIGRATION_DDL); err != nil {
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ColorLog("[ERRO] Could not create migrations table: %s\n", err)
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os.Exit(2)
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}
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}
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// checking that migrations table schema are expected
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if rows, err := db.Query("DESC migrations"); err != nil {
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ColorLog("[ERRO] Could not show columns of migrations table: %s\n", err)
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os.Exit(2)
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} else {
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for rows.Next() {
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var fieldBytes, typeBytes, nullBytes, keyBytes, defaultBytes, extraBytes []byte
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if err := rows.Scan(&fieldBytes, &typeBytes, &nullBytes, &keyBytes, &defaultBytes, &extraBytes); err != nil {
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ColorLog("[ERRO] Could not read column information: %s\n", err)
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os.Exit(2)
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}
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fieldStr, typeStr, nullStr, keyStr, defaultStr, extraStr :=
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string(fieldBytes), string(typeBytes), string(nullBytes), string(keyBytes), string(defaultBytes), string(extraBytes)
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if fieldStr == "id_migration" {
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if keyStr != "PRI" || extraStr != "auto_increment" {
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ColorLog("[ERRO] Column migration.id_migration type mismatch: KEY: %s, EXTRA: %s\n", keyStr, extraStr)
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ColorLog("[HINT] Expecting KEY: PRI, EXTRA: auto_increment\n")
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os.Exit(2)
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}
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} else if fieldStr == "file" {
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if !strings.HasPrefix(typeStr, "varchar") || nullStr != "YES" {
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ColorLog("[ERRO] Column migration.file type mismatch: TYPE: %s, NULL: %s\n", typeStr, nullStr)
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ColorLog("[HINT] Expecting TYPE: varchar, NULL: YES\n")
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os.Exit(2)
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}
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} else if fieldStr == "created_at" {
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if typeStr != "timestamp" || defaultStr != "CURRENT_TIMESTAMP" {
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ColorLog("[ERRO] Column migration.file type mismatch: TYPE: %s, DEFAULT: %s\n", typeStr, defaultStr)
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ColorLog("[HINT] Expecting TYPE: timestamp, DEFAULT: CURRENT_TIMESTAMP\n")
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os.Exit(2)
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}
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}
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}
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}
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}
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func createTempMigrationDir(path string) {
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if err := os.MkdirAll(path, 0777); err != nil {
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ColorLog("[ERRO] Could not create path: %s\n", err)
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os.Exit(2)
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}
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}
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func writeMigrationSourceFile(filename string, driver string, connStr string) {
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if f, err := os.OpenFile(filename+".go", os.O_CREATE|os.O_EXCL|os.O_RDWR, 0666); err != nil {
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ColorLog("[ERRO] Could not create file: %s\n", err)
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os.Exit(2)
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} else {
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content := strings.Replace(MIGRATION_MAIN_TPL, "{{DBDriver}}", driver, -1)
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content = strings.Replace(content, "{{ConnStr}}", connStr, -1)
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content = strings.Replace(content, "{{CurrTime}}", "123", -1)
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if _, err := f.WriteString(content); err != nil {
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ColorLog("[ERRO] Could not write to file: %s\n", err)
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os.Exit(2)
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}
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f.Close()
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}
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}
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func buildMigrationBinary(filename string) {
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cmd := exec.Command("go", "build", "-o", filename, filename+".go")
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if err := cmd.Run(); err != nil {
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ColorLog("[ERRO] Could not build migration binary: %s\n", err)
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os.Exit(2)
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}
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}
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func runMigrationBinary(filename string) {
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cmd := exec.Command("./" + filename)
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if out, err := cmd.CombinedOutput(); err != nil {
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ColorLog("[ERRO] Could not run migration binary\n")
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os.Exit(2)
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} else {
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ColorLog("[INFO] %s", string(out))
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}
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}
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func cleanUpMigrationFiles(tmpPath string) {
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if err := os.RemoveAll(tmpPath); err != nil {
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ColorLog("[ERRO] Could not remove temporary migration directory: %s\n", err)
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os.Exit(2)
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}
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}
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func migrateUpdate() {
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println("=>update")
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connStr := "root:@tcp(127.0.0.1:3306)/sgfas?charset=utf8"
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checkForSchemaUpdateTable("mysql", connStr)
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filename := path.Join(TMP_DIR, "super")
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createTempMigrationDir(TMP_DIR)
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writeMigrationSourceFile(filename, "mysql", connStr)
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buildMigrationBinary(filename)
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runMigrationBinary(filename)
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cleanUpMigrationFiles(TMP_DIR)
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}
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func migrateRollback() {
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println("=>rollback")
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}
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func migrateReset() {
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println("=>reset")
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}
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func migrateRefresh() {
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println("=>refresh")
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migrateReset()
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migrateUpdate()
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}
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const (
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MIGRATION_MAIN_TPL = `package main
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import(
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"github.com/astaxie/beego/orm"
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"github.com/astaxie/beego/migration"
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)
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func init(){
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orm.RegisterDb("default", "{{DBDriver}}","{{ConnStr}}")
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}
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func main(){
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migration.Upgrade({{CurrTime}})
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//migration.Rollback()
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//migration.Reset()
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//migration.Refresh()
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}
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`
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MYSQL_MIGRATION_DDL = `
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CREATE TABLE migrations (
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id_migration int(10) unsigned NOT NULL AUTO_INCREMENT,
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file varchar(255) DEFAULT NULL,
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created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
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statements text,
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PRIMARY KEY (id_migration)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8
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`
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)
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