Diff return a diff like string, comparing string A and string B.

HasPrefix test if a filename uses a prefix.

IsURL tests if a string is a valid http URL.

Read read file from a location then return an array of byte.

ReadFromFile read a file then return its data as an array of byte.

ReadFromURL read a file form a http/https url then return its data as an array of byte.

Show return a string where each line start with a tabulation to increase visibility.

WriteToFile write a string to a file.

ErrLineNotFound is the error message when no matching line found.

File defines the resource file that can be configured from an updatecli configuration.

Line hold rule that define if a specific line should be included or excluded.