chore: generate version.go

cmd/README.md

@@ -0,0 +1,10 @@
+### Versioner
+
+Before a release run in project root:
+
+```sh
+go run cmd/versioner.go v1.5.1
+```
+
+where tag is the next tag to be used.
+

cmd/version.go.tmpl

@@ -0,0 +1,5 @@
+// Code generated from versioner.go; DO NOT EDIT.
+
+package dbsql
+
+var DriverVersion = "{{.Version}}"

cmd/versioner.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"regexp"
+	"runtime"
+	"text/template"
+)
+
+func getTemplateFilePath() string {
+	_, filename, _, _ := runtime.Caller(0)
+	dir := path.Dir(filename)
+	return path.Join(dir, "version.go.tmpl")
+}
+
+func main() {
+	tag := os.Args[1] // The first argument is the tag
+	// If the tag is not a valid semantic version, then it is not a release tag
+	re := regexp.MustCompile(`^v\d+\.\d+\.\d+$`)
+	if !re.MatchString(tag) {
+		panic(fmt.Errorf("tag %s is not a valid semantic version", tag))
+	}
+	tmpl, err := template.ParseFiles(getTemplateFilePath())
+	if err != nil {
+		panic(err)
+	}
+	f, err := os.Create("version.go")
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
+	if err := tmpl.Execute(f, map[string]string{
+		"Version": string(tag),
+	}); err != nil {
+		panic(err)
+	}
+}

driver.go

@@ -13,8 +13,6 @@ func init() {
 	sql.Register("databricks", &databricksDriver{})
 }
 
-var DriverVersion = "1.3.1" // update version before each release
-
 type databricksDriver struct{}
 
 // Open returns a new connection to Databricks database with a DSN string.