Class LineDiff

java.lang.Object

network.ike.plugin.scaffold.LineDiff

public final class LineDiff
extends Object

Minimal LCS-based line differ used by tracked and tracked-block tier handlers to build human-readable diff output for scaffold-draft.

This is not a full unified-diff implementation — we only emit the prefixed lines (' ', '-', '+') without hunk headers, which is plenty for draft output where the file path is already printed separately.

Both inputs are treated as UTF-8 text and split on LF. A trailing newline is normalised away so "a\n" and "a" produce identical line lists — callers that care about trailing-newline differences should compare raw bytes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	LineDiff.Counts	Added/removed line counts.

Method Summary

Modifier and Type	Method	Description
static LineDiff.Counts	counts(String from, String to)	Count of '+' and '-' lines between two texts.
static String	unified(String from, String to)	A line-prefixed diff: every line in the union starts with one of ' ', '-', or '+'.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

counts

public static LineDiff.Counts counts(String from,
 String to)

Count of '+' and '-' lines between two texts.

Parameters:

from - the baseline text

to - the new text

Returns:

a LineDiff.Counts record

unified

public static String unified(String from,
 String to)

A line-prefixed diff: every line in the union starts with one of ' ', '-', or '+'. Empty output means the texts are identical.

Parameters:

from - the baseline text

to - the new text

Returns:

a newline-terminated, prefixed diff