Subject: [RFC PATCH v3 08/13] walken: demonstrate various topographical sorts

From: Emily Shaffer <[email-masked]>
Date: Mon, 1 Jul 2019 13:20:09 -0700

Order the revision walk by author or commit dates to demonstrate how to
apply topo_sort to a revision walk.

While following the tutorial, new contributors are guided to run a walk
with each sort and compare the results.

Signed-off-by: Emily Shaffer <[email-masked]>
Change-Id: I7ce2f3e8a77c42001293637ae209087afec4ce2c
---
 builtin/walken.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/builtin/walken.c b/builtin/walken.c
index a600f88cf6..b334f61e69 100644
--- a/builtin/walken.c
+++ b/builtin/walken.c
@@ -61,6 +61,13 @@ static void final_rev_info_setup(int argc, const char **argv, const char *prefix
 	/* Let's force oneline format. */
 	get_commit_format("oneline", rev);
 	rev->verbose_header = 1;
+	
+	/* Let's play with the sort order. */
+	rev->topo_order = 1;
+
+	/* Toggle between these and observe the difference. */
+	rev->sort_order = REV_SORT_BY_COMMIT_DATE;
+	/* rev->sort_order = REV_SORT_BY_AUTHOR_DATE; */
 }
 
 /*
-- 
2.22.0.410.gd8fdbe21b5-goog