threads / patch / 1137

patch, 13 partsChange gitk so that it uses --topo-order rather than --merge-order

Subject: [PATCH 6/13] Change gitk so that it uses --topo-order rather than --merge-order

## tl;dr

One message between Jul 6, 2005 and Jul 6, 2005. Diffs are folded; open one to read it.

replies: 0people: 1as markdown or json

Jon Seymour· Jul 6, 2005, 16:39 UTC · lore

This change is made so that gitk --all produces the same result for every user irrespective of whether git-rev-parse --all produces the same result for every user. By using --topo-order rather than --merge-order this can be guaranteed and the existing (non-timestamp dependent) behaviour of --merge-order can be maintained.

Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
---
Paul, could you review this patch and if you agree, ack it.

The rationale for changing gitk to use --topo-order is that git-rev-list will produce the same order for --topo-order irrespective of the order of the start list, whereas git-rev-list --merge-order produces an order that is deliberately sensitive to the order of the start list.

Linus wants gitk --all to behave the same way, irrespective of what order git-rev-parse --all produces its output. I want --merge-order to keep its existing behaviour, so we agreed on this compromise whereby gitk uses --topo-order rather than --merge-order by default.

My understanding of your code is that you only expect a minimal topological ordering guarantee and the ordering produced by --topo-order should be sufficient for your needs - that is, you don't rely on the other aspect of the --merge-order invariant.

I'll leave it to you and Linus to decide how you want to manage the merge between your HEAD and Linus'. ---

 gitk |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
19c9032b06b370511ef1091434df0d1d644fee06
Show changes to gitk +1 −1
diff --git a/gitk b/gitk
--- a/gitk
+++ b/gitk
@@ -37,7 +37,7 @@ proc getcommits {rargs} {
 	set parsed_args $rargs
     }
     if [catch {
-	set commfd [open "|git-rev-list --header --merge-order $parsed_args" r]
+	set commfd [open "|git-rev-list --header --topo-order $parsed_args" r]
     } err] {
 	puts stderr "Error executing git-rev-list: $err"
 	exit 1
------------

← back to recent threads