Ignore blank spaces in code block with changes using git diff

Question

I am trying to only get lines with changes using git diff. However, it is still counting blank lines in a code block with changes.

Here is my git diff command:

git diff --ignore-all-space --ignore-blank-lines --numstat HEAD

Example original code:

public void myCodeChange() {
    String s = "original"
    return s;
}

Example changed code:

public void myCodeChange() {
    String s = "changes"

    return s;
}

Here is what the diff looks like:

 public void myCodeChange() {
-     String s = "original"
+    String s = "changes"
+
     return s;
 }

I expect this to be 1 line added when running my git diff, however it is returning 2 lines added. Is there a way to make it not count that blank line?

Answer 1

Please have a look at the documentation of --ignore-blank-lines:

Ignore changes whose lines are all blank.

The text is pretty clear that the option causes changes to be ignored only when they consist only of changes in blank lines.

I do not know of a way to not count the added blank line in your example text