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dendrite/cmd/goose/main.go
Kegsay 95d7e2336d
Add support for database migrations (#1416)
* Add support for database migrations

Closes #1246

This PR does NOT add any migrations as an example. I have
manually tested that the library works with SQL and Go based
upgrades correctly. Documentation should be sufficient for
devs to add migrations.

* Clarifications

* Linting
2020-09-10 15:10:32 +01:00

98 lines
2.4 KiB
Go

// This is custom goose binary
package main
import (
"flag"
"fmt"
"log"
"os"
// Example complex Go migration import:
// _ "github.com/matrix-org/dendrite/serverkeyapi/storage/postgres/deltas"
"github.com/pressly/goose"
_ "github.com/lib/pq"
_ "github.com/mattn/go-sqlite3"
)
var (
flags = flag.NewFlagSet("goose", flag.ExitOnError)
dir = flags.String("dir", ".", "directory with migration files")
)
func main() {
err := flags.Parse(os.Args[1:])
if err != nil {
panic(err.Error())
}
args := flags.Args()
if len(args) < 3 {
fmt.Println(
`Usage: goose [OPTIONS] DRIVER DBSTRING COMMAND
Drivers:
postgres
sqlite3
Examples:
goose -d roomserver/storage/sqlite3/deltas sqlite3 ./roomserver.db status
goose -d roomserver/storage/sqlite3/deltas sqlite3 ./roomserver.db up
goose -d roomserver/storage/postgres/deltas postgres "user=dendrite dbname=dendrite sslmode=disable" status
Options:
-dir string
directory with migration files (default ".")
-table string
migrations table name (default "goose_db_version")
-h print help
-v enable verbose mode
-version
print version
Commands:
up Migrate the DB to the most recent version available
up-by-one Migrate the DB up by 1
up-to VERSION Migrate the DB to a specific VERSION
down Roll back the version by 1
down-to VERSION Roll back to a specific VERSION
redo Re-run the latest migration
reset Roll back all migrations
status Dump the migration status for the current DB
version Print the current version of the database
create NAME [sql|go] Creates new migration file with the current timestamp
fix Apply sequential ordering to migrations`,
)
return
}
engine := args[0]
if engine != "sqlite3" && engine != "postgres" {
fmt.Println("engine must be one of 'sqlite3' or 'postgres'")
return
}
dbstring, command := args[1], args[2]
db, err := goose.OpenDBWithDriver(engine, dbstring)
if err != nil {
log.Fatalf("goose: failed to open DB: %v\n", err)
}
defer func() {
if err := db.Close(); err != nil {
log.Fatalf("goose: failed to close DB: %v\n", err)
}
}()
arguments := []string{}
if len(args) > 3 {
arguments = append(arguments, args[3:]...)
}
if err := goose.Run(command, db, *dir, arguments...); err != nil {
log.Fatalf("goose %v: %v", command, err)
}
}