This removes the distinction between "strict" and "fuzzy" application
by allowing future methods on Applier that control settings. It also
avoids state tracking in the text fragment apply signature by moving it
into the Applier type.
While in practice, an Applier will be used once and discarded, the
capability is provided to reset it for multiple uses.
This is functionally equivalent to the previous version (except for one
error case), but uses the new interface. I think the code is simpler
overall because it removes the line tracking.
Covers basic literal and delta application. Input files were created by
using dd and the 'conv=notrunc' option to modify sections of files
created from /dev/urandom. All file start with two null bytes to
convince Git they are binary.
Conflict errors are now represented by an exported type that is
compatible with errors.Is instead of using the method defined on
ApplyError. This makes the tests slightly cleaner and should be more
idiomatic for clients.
This wraps the underlying error with optional position information and
provides a way to test if the error was due to a conflict. At the
moment, details about the conflict are not exposed outside of the
message string.
Billy Keyes