1 files changed, 82 insertions, 0 deletions
diff --git a/internal/config/cspgenerator.go b/internal/config/cspgenerator.go
new file mode 100644
index 0000000..9974819
--- /dev/null
+++ b/internal/config/cspgenerator.go
@@ -0,0 +1,82 @@
+package config
+
+//go:generate go run ../../cmd/cspgenerator/
+
+import (
+	"fmt"
+	"os"
+	"reflect"
+
+	"github.com/crewjam/csp"
+	"github.com/fatih/structtag"
+	"gitlab.com/tozd/go/errors"
+)
+
+func GenerateCSP() error {
+	t := reflect.TypeFor[csp.Header]()
+	file, err := os.OpenFile("./csp.go", os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0)
+	if err != nil {
+
+		return errors.Wrap(err, "could not write to output")
+	}
+	defer file.Close()
+
+	_, err = fmt.Fprintf(file, `package config
+
+// Code generated  DO NOT EDIT.
+
+import (
+	"github.com/crewjam/csp"
+)
+
+`)
+	if err != nil {
+
+		return errors.Wrap(err, "could not write to output")
+	}
+
+	_, err = fmt.Fprintf(file, "type CSP struct {\n")
+	if err != nil {
+		return errors.Wrap(err, "could not write to output")
+	}
+
+	for i := 0; i < t.NumField(); i++ {
+		field := t.Field(i)
+		var t reflect.Type
+		t = field.Type
+		tags, err := structtag.Parse(string(field.Tag))
+		if err != nil {
+			return errors.Wrap(err, "could not write to output")
+		}
+		cspTag, err := tags.Get("csp")
+		if err != nil {
+			return errors.Wrap(err, "could not get csp tag")
+		}
+		err = tags.Set(&structtag.Tag{
+			Key:  "toml",
+			Name: cspTag.Name,
+		})
+		if err != nil {
+			return errors.Wrap(err, "could not set toml tag")
+		}
+
+		_, err = fmt.Fprintf(file, "\t%-23s %-28s `%s`\n", field.Name, t, tags.String())
+		if err != nil {
+			return errors.Wrap(err, "could not write to output")
+		}
+	}
+	_, err = fmt.Fprintln(file, "}")
+	if err != nil {
+		return errors.Wrap(err, "could not write to output")
+	}
+
+	_, err = fmt.Fprintln(file, `
+func (c *CSP) String() string {
+	return csp.Header(*c).String()
+}`)
+	if err != nil {
+		return errors.Wrap(err, "could not write to output")
+	}
+
+	return nil
+}