Jonathan Tan <jonathantanmy@xxxxxxxxxx> writes:
> - else if (!strcmp(arg, "--patience"))
> + else if (!strcmp(arg, "--patience")) {
> + int i;
> options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF);
> - else if (!strcmp(arg, "--histogram"))
> + /*
> + * Both --patience and --anchored use PATIENCE_DIFF
> + * internally, so remove any anchors previously
> + * specified.
> + */
> + for (i = 0; i < options->anchors_nr; i++)
> + free(options->anchors[i]);
> + options->anchors_nr = 0;
This makes sense, but "--diff-algorithm=patience" would want to do
the same, I suspect, so the loop would want to become a little
helper function "clear_patience_anchors(options)" or something like
that.
> diff --git a/t/t4064-diff-anchored.sh b/t/t4064-diff-anchored.sh
> new file mode 100755
> index 000000000..b3f510f04
> --- /dev/null
> +++ b/t/t4064-diff-anchored.sh
> @@ -0,0 +1,94 @@
> +#!/bin/sh
> +
> +test_description='anchored diff algorithm'
> +
> +. ./test-lib.sh
> +
> +test_expect_success '--anchored' '
> + printf "a\nb\nc\n" >pre &&
> + printf "c\na\nb\n" >post &&
This may be too little to matter, but I'd find
printf "%s\n" a b c >pre
vastly easier to read. Or perhaps just use
test_write_lines a b c >pre
