Update to latest mssqldriver (#7613)

* New driver does not tolerate USE - handle this by closing db and reopening db in the new dbname

Author: zeripath

go.mod

@@ -3,7 +3,6 @@ module code.gitea.io/gitea
 go 1.12
 
 require (
-	github.com/BurntSushi/toml v0.3.1 // indirect
 	github.com/PuerkitoBio/goquery v0.0.0-20170324135448-ed7d758e9a34
 	github.com/RoaringBitmap/roaring v0.4.7 // indirect
 	github.com/Unknwon/cae v0.0.0-20160715032808-c6aac99ea2ca
@@ -127,11 +126,8 @@ require (
 	gopkg.in/src-d/go-git.v4 v4.12.0
 	gopkg.in/stretchr/testify.v1 v1.2.2 // indirect
 	gopkg.in/testfixtures.v2 v2.5.0
-	gopkg.in/yaml.v2 v2.2.2 // indirect
 	mvdan.cc/xurls/v2 v2.0.0
 	strk.kbt.io/projects/go/libravatar v0.0.0-20160628055650-5eed7bff870a
 	xorm.io/builder v0.3.5
 	xorm.io/core v0.6.3
 )
-
-replace github.com/denisenkom/go-mssqldb => github.com/denisenkom/go-mssqldb v0.0.0-20180315180555-6a30f4e59a44

go.sum

@@ -181,11 +181,19 @@ func restoreOldDB(t *testing.T, version string) bool {
 		assert.NoError(t, err)
 		defer db.Close()
 
-		_, err = db.Exec("DROP DATABASE IF EXISTS gitea")
+		_, err = db.Exec("DROP DATABASE IF EXISTS [gitea]")
 		assert.NoError(t, err)
 
 		statements := strings.Split(data, "\nGO\n")
 		for _, statement := range statements {
+			if len(statement) > 5 && statement[:5] == "USE [" {
+				dbname := statement[5 : len(statement)-1]
+				db.Close()
+				db, err = sql.Open("mssql", fmt.Sprintf("server=%s; port=%s; database=%s; user id=%s; password=%s;",
+					host, port, dbname, models.DbCfg.User, models.DbCfg.Passwd))
+				assert.NoError(t, err)
+				defer db.Close()
+			}
 			_, err = db.Exec(statement)
 			assert.NoError(t, err, "Failure whilst running: %s\nError: %v", statement, err)
 		}