added mssqlconn

mssqlconn/config.go

@@ -0,0 +1,23 @@
+package mssqlconn
+
+import (
+	"fmt"
+	"regexp"
+)
+
+const (
+	Driver = "sqlserver"
+
+	argFmt = "@p%d"
+)
+
+// TODO allow spaces and other characters and escaping with backticks
+var columnNameRegex = regexp.MustCompile(`^[0-9a-zA-Z$_]{1,64}$`)
+
+// https://learn.microsoft.com/en-us/sql/odbc/microsoft/column-name-limitations
+func validateColumnName(name string) error {
+	if !columnNameRegex.MatchString(name) {
+		return fmt.Errorf("invalid Microsoft SQL Server column name: %q", name)
+	}
+	return nil
+}

mssqlconn/connection.go

@@ -0,0 +1,33 @@
+package mssqlconn
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+
+	_ "github.com/microsoft/go-mssqldb"
+
+	"github.com/domonda/go-sqldb"
+	"github.com/domonda/go-sqldb/impl"
+)
+
+func New(ctx context.Context, config *sqldb.Config) (sqldb.Connection, error) {
+	if config.Driver != Driver {
+		return nil, fmt.Errorf(`invalid driver %q, expected %q`, config.Driver, Driver)
+	}
+	config.DefaultIsolationLevel = sql.LevelReadCommitted // Microsoft SQL Server default
+
+	db, err := config.Connect(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return impl.Connection(ctx, db, config, validateColumnName, argFmt), nil
+}
+
+func MustNew(ctx context.Context, config *sqldb.Config) sqldb.Connection {
+	conn, err := New(ctx, config)
+	if err != nil {
+		panic(err)
+	}
+	return conn
+}

mssqlconn/go.mod

@@ -0,0 +1,19 @@
+module github.com/domonda/go-sqldb/mssqlconn
+
+go 1.22.0
+
+replace github.com/domonda/go-sqldb => ../
+
+require (
+	github.com/domonda/go-sqldb v0.0.0-20240122205319-56db59ae89d2
+	github.com/microsoft/go-mssqldb v1.7.0
+)
+
+require (
+	github.com/domonda/go-types v0.0.0-20240301143218-7f4371e713b4 // indirect
+	github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9 // indirect
+	github.com/golang-sql/sqlexp v0.1.0 // indirect
+	github.com/lib/pq v1.10.9 // indirect
+	golang.org/x/crypto v0.20.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+)