merge

Documentation

Index

• func Merge(left, right interface{}) error

Functions

func Merge

func Merge(left, right interface{}) error

Merge two config trees together.

Data in the left is replaced with data in the right unless it's zero value.

This function is not supposed to be a generic merge function. It is specifically fine-tuned to merge Talos machine configuration.

Rules:

• if it is a simple value (int, float, string, etc.), it's merged into the left unless it's zero value, but boolean false is always merged.
• if it is a pointer, merged dereferencing the pointer unless the right is nil
• if it is a slice, merged by concatenating the right to the left.
• if the `merge:"replace"` struct tag is defined, a slice is replaced with the value of the right (unless it's zero value.)
• slices of `[]byte` are always replaced
• if it is a map, for each key value is merged recursively.
• if it is a struct, merge is performed for each field of the struct.
• if the type implements 'merger' interface, Merge function is called to handle the merge process.
• merger interface should be implemented on the pointer to the type.