Re: [RFC/PATCH 5/3] Alternative --dirstat implementation, based on diffstat analysis

This patch adds an alternative implementation of show_dirstat(), called
show_dirstat_based_on_diffstat(), which uses the more expensive diffstat
analysis (as opposed to --dirstat's own (inexpensive) analysis) to derive
the numbers from which the --dirstat output is computed.
...

diff --git a/diff.c b/diff.c
index 5376d01..a496ba6 100644
--- a/diff.c
+++ b/diff.c

@@ -31,6 +31,7 @@ static const char *external_diff_cmd_cfg;
 int diff_auto_refresh_index = 1;
 static int diff_mnemonic_prefix;
 static int diff_no_prefix;
+static int dirstat_based_on_diffstat;
 static struct diff_options default_diff_options;
 
 static char diff_colors[][COLOR_MAXLEN] = {

@@ -103,6 +104,10 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
 		diff_no_prefix = git_config_bool(var, value);
 		return 0;
 	}
+	if (!strcmp(var, "diff.dirstatbasedondiffstat")) {
+		dirstat_based_on_diffstat = git_config_bool(var, value);
+		return 0;
+	}