harbor/src/cmd/migrate-patch/main.go
Daniel Jiang 1832699e93 Bump up the migrate tool of notary
fixes #5863
The migrate binary that we include in notary is quite out dated.
Additionally it introduced a breaking change, more details see #5863

In this commit a go program was added to workaround this issue to ensure the
migration process works, and refined bootstrap scripts and make process accordingly.

Signed-off-by: Daniel Jiang <jiangd@vmware.com>
2019-02-21 00:36:24 -08:00

72 lines
2.0 KiB
Go

package main
import (
"database/sql"
"flag"
_ "github.com/lib/pq"
"log"
"strings"
"time"
)
var dbURL string
const pgSQLAlterStmt string = `ALTER TABLE schema_migrations ADD COLUMN "dirty" boolean NOT NULL DEFAULT false`
const pgSQLCheckColStmt string = `SELECT T1.C1, T2.C2 FROM
(SELECT COUNT(*) AS C1 FROM information_schema.tables WHERE table_name='schema_migrations') T1,
(SELECT COUNT(*) AS C2 FROM information_schema.columns WHERE table_name='schema_migrations' and column_name='dirty') T2`
const pgSQLDelRows string = `DELETE FROM schema_migrations t WHERE t.version < ( SELECT MAX(version) FROM schema_migrations )`
func init() {
urlUsage := `The URL to the target database (driver://url). Currently it only supports postgres`
flag.StringVar(&dbURL, "database", "", urlUsage)
}
func main() {
flag.Parse()
log.Printf("Updating database.")
if !strings.HasPrefix(dbURL, "postgres://") {
log.Fatalf("Invalid URL: '%s'\n", dbURL)
}
db, err := sql.Open("postgres", dbURL)
if err != nil {
log.Fatalf("Failed to connect to Database, error: %v\n", err)
}
defer db.Close()
c := make(chan int, 1)
go func() {
err := db.Ping()
for ; err != nil; err = db.Ping() {
log.Printf("Failed to Ping DB, sleep for 1 second.\n")
time.Sleep(1 * time.Second)
}
c <- 1
}()
select {
case <-c:
case <-time.After(30 * time.Second):
log.Fatal("Failed to connect DB after 30 seconds, time out. \n")
}
row := db.QueryRow(pgSQLCheckColStmt)
var tblCount, colCount int
if err := row.Scan(&tblCount, &colCount); err != nil {
log.Fatalf("Failed to check schema_migrations table, error: %v \n", err)
}
if tblCount == 0 {
log.Printf("schema_migrations table does not exist, skip.\n")
return
}
if colCount > 0 {
log.Printf("schema_migrations table does not require update, skip.\n")
return
}
if _, err := db.Exec(pgSQLDelRows); err != nil {
log.Fatalf("Failed to clean up table, error: %v", err)
}
if _, err := db.Exec(pgSQLAlterStmt); err != nil {
log.Fatalf("Failed to update database, error: %v \n", err)
}
log.Printf("Done updating database. \n")
}