/
main.go
100 lines (80 loc) · 2.2 KB
/
main.go
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package main
import (
"database/sql"
"log"
"github.com/RedHatInsights/cloud-connector/internal/config"
"github.com/RedHatInsights/cloud-connector/internal/platform/db"
)
func main() {
cfg := config.GetConfig()
log.Println("Starting Cloud-Connector DB migration")
log.Println("Cloud-Connector configuration:\n", cfg)
database, err := db.InitializeDatabaseConnection(cfg)
if err != nil {
log.Println("Unable to initialize database connection", err)
return
}
printConnectionsColumns(database)
dumpSchemaMigrationsTable(database)
}
func printConnectionsColumns(database *sql.DB) {
statement, err := database.Prepare(
`SELECT column_name, data_type, column_default, is_nullable FROM information_schema.columns
WHERE table_name = 'connections'`)
if err != nil {
log.Println("SQL Prepare failed", err)
return
}
defer statement.Close()
rows, err := statement.Query()
if err != nil {
log.Println("SQL query failed", err)
return
}
defer rows.Close()
log.Print("-----------------")
log.Print("connections table:")
log.Print("-----------------")
for rows.Next() {
var columnName string
var dataType string
var defaultValueString sql.NullString
var isNullable string
if err := rows.Scan(&columnName, &dataType, &defaultValueString, &isNullable); err != nil {
log.Println("SQL scan failed. Skipping row.", err)
return
}
defaultValue := "null"
if defaultValueString.Valid {
defaultValue = defaultValueString.String
}
log.Printf("%s|%s|%s|%s\n", columnName, dataType, defaultValue, isNullable)
}
}
func dumpSchemaMigrationsTable(database *sql.DB) {
statement, err := database.Prepare(
`SELECT version, dirty FROM schema_migrations`)
if err != nil {
log.Println("SQL Prepare failed", err)
return
}
defer statement.Close()
rows, err := statement.Query()
if err != nil {
log.Println("SQL query failed", err)
return
}
defer rows.Close()
log.Print("-----------------")
log.Print("schema_migrations table:")
log.Print("-----------------")
for rows.Next() {
var version int
var dirty bool
if err := rows.Scan(&version, &dirty); err != nil {
log.Println("SQL scan failed. Skipping row.", err)
return
}
log.Printf("%d|%v\n", version, dirty)
}
}