chore: generate version.go

Author: stoffeastrom

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 +1,38 @@
+package main
+
+import (
+	"os"
+	"os/exec"
+	"path"
+	"runtime"
+	"strings"
+	"text/template"
+)
+
+func getTemplateFilePath() string {
+	_, filename, _, _ := runtime.Caller(0)
+	dir := path.Dir(filename)
+	return path.Join(dir, "version.go.tmpl")
+}
+
+func main() {
+	out, err := exec.Command("git", "describe", "--exact-match", "--tags", "HEAD").Output()
+	if err != nil {
+		panic(err)
+	}
+	tag := strings.TrimSuffix(string(out), "\n")
+	tmpl, err := template.ParseFiles(getTemplateFilePath())
+	if err != nil {
+		panic(err)
+	}
+	fp, err := os.Create("version.go")
+	if err != nil {
+		panic(err)
+	}
+	defer fp.Close()
+	if err := tmpl.Execute(fp, map[string]string{
+		"Version": string(tag),
+	}); err != nil {
+		panic(err)
+	}
+}

driver.go

@@ -1,5 +1,7 @@
 package dbsql
 
+//go:generate go run cmd/versioner.go
+
 import (
 	"context"
 	"database/sql"
@@ -13,8 +15,6 @@ 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.