Make ge, le etc. work with the Hugo Version number

This means that you can do something ala:

```html
{{ if ge .Hugo.Version "0.36" }}Reasonable new Hugo version!{{ end }}
```

The intented use is feature toggling, but please note that it will take some time and Hugo versions until this can be trusted. It does not work in older Hugo versions.

Fixes #4443

1 files changed, 8 insertions, 0 deletions

diff --git a/compare/eq.go b/compare/compare.go
index 6120c0bf2..19a5deaa2 100644
--- a/compare/eq.go
+++ b/compare/compare.go
@@ -19,3 +19,11 @@ package compare
 type Eqer interface {
 	Eq(other interface{}) bool
 }
+
+// Comparer can be used to compare two values.
+// This will be used when using the le, ge etc. operators in the templates.
+// Compare returns -1 if the given version is less than, 0 if equal and 1 if greater than
+// the running version.
+type Comparer interface {
+	Compare(other interface{}) int
+}