[RFC PATCH v2 08/13] walken: demonstrate various topographical sorts

From: Emily Shaffer <emilyshaffer@google.com>
Date: Jun 26, 2019, 23:50 UTC
Message-ID: <20190626235032.177551-9-emilyshaffer@google.com>
In-Reply-To: <20190626235032.177551-1-emilyshaffer@google.com>

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 <emilyshaffer@google.com>
Change-Id: I7ce2f3e8a77c42001293637ae209087afec4ce2c
---
 builtin/walken.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/builtin/walken.c b/builtin/walken.c
index da2d197914..6cc451324a 100644
--- a/builtin/walken.c
+++ b/builtin/walken.c
@@ -69,6 +69,13 @@ static void final_rev_info_setup(int argc, const char **argv, const char *prefix
 
 	/* add the HEAD to pending so we can start */
 	add_head_to_pending(rev);
+	
+	/* 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