chore(variables): support integer interpolation for all values

pkg/permissions.go

@@ -37,14 +37,9 @@ func (p *Permissions) resolve(filename string) (Status, error) {
 			}
 		}
 	}
-	m, ok := p.mode.(*IntValue)
+	m, err := p.mode.Int()
-	if !ok {
+	if err != nil {
-		if i, err := strconv.Atoi(p.mode.String()); err != nil {
+		return BROKEN, err
-			return BROKEN, err
-		} else {
-			m = &IntValue{i}
-			p.mode = m
-		}
 	}
 	u, ok := p.user.(*IntValue)
 	if !ok {
@@ -63,9 +58,9 @@ func (p *Permissions) resolve(filename string) (Status, error) {
 	if fileInfo, err := os.Lstat(filename); err != nil {
 		return BROKEN, err
 	} else {
-		gv := g.Int()
+		gv, _ := g.Int()
-		mv := fs.FileMode(m.Int())
+		mv := fs.FileMode(m)
-		uv := u.Int()
+		uv, _ := u.Int()
 		if fileInfo.Mode() != mv {
 			if err := os.Chmod(filename, mv); err != nil {
 				return BROKEN, err
@@ -82,8 +77,6 @@ func (p *Permissions) resolve(filename string) (Status, error) {
 		} else {
 			return BROKEN, errors.New("Unsupported operating system")
 		}
-		_ = gv
-		_ = uv
 	}
 	return status, nil
 }

pkg/templates.go

@@ -3,6 +3,7 @@ package gonf
 import (
 	"bytes"
 	"log/slog"
+	"strconv"
 	"text/template"
 )
 
@@ -38,7 +39,9 @@ func (t *TemplateValue) Bytes() []byte {
 	}
 	return t.contents
 }
-
+func (t TemplateValue) Int() (int, error) {
+	return strconv.Atoi(t.String())
+}
 func (t TemplateValue) String() string {
 	return string(t.Bytes()[:])
 }

pkg/values.go

@@ -3,11 +3,13 @@ package gonf
 import (
 	"fmt"
 	"log/slog"
+	"strconv"
 	"strings"
 )
 
 type Value interface {
 	Bytes() []byte
+	Int() (int, error)
 	String() string
 }
 
@@ -53,6 +55,9 @@ type BytesValue struct {
 func (b BytesValue) Bytes() []byte {
 	return b.value
 }
+func (b BytesValue) Int() (int, error) {
+	return strconv.Atoi(string(b.value))
+}
 func (b BytesValue) String() string {
 	return string(b.value[:])
 }
@@ -65,8 +70,8 @@ type IntValue struct {
 func (i IntValue) Bytes() []byte {
 	return []byte(string(i.value))
 }
-func (i IntValue) Int() int {
+func (i IntValue) Int() (int, error) {
-	return i.value
+	return i.value, nil
 }
 func (i IntValue) String() string {
 	return string(i.value)
@@ -83,6 +88,9 @@ func (s *StringsListValue) Append(v ...string) {
 func (s StringsListValue) Bytes() []byte {
 	return []byte(s.String())
 }
+func (s StringsListValue) Int() (int, error) {
+	return len(s.value), nil
+}
 func (s StringsListValue) String() string {
 	return strings.Join(s.value, "\n")
 }
@@ -95,6 +103,9 @@ type StringValue struct {
 func (s StringValue) Bytes() []byte {
 	return []byte(s.value)
 }
+func (s StringValue) Int() (int, error) {
+	return strconv.Atoi(s.value)
+}
 func (s StringValue) String() string {
 	return s.value
 }

pkg/variables.go

@@ -70,6 +70,9 @@ type VariablePromise struct {
 func (s VariablePromise) Bytes() []byte {
 	return s.value.Bytes()
 }
+func (s VariablePromise) Int() (int, error) {
+	return s.value.Int()
+}
 func (s VariablePromise) String() string {
 	return s.value.String()
 }