Mercurial > hg
view tests/test-diffdir.t @ 30706:2e4862646f02
repair: speed up stripping of many roots
repair.strip() expects a set of root revisions to strip. It then
builds the full set of descedants by walking the descandants of
each. It is rare that more than a few roots get passed in, but if that
happens, it will wastefully walk the changelog for each root. So let's
just walk it once.
I noticed this because the narrowhg extension was passing not only
roots, but all the commits to strip. When there were tens of thousands
of commits to strip, this resulted in quadratic behavior with that
extension.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Wed, 04 Jan 2017 10:07:12 -0800 |
parents | 51b6ce257e0a |
children | fc4fb2f17dd4 |
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$ hg init $ touch a $ hg add a $ hg ci -m "a" $ echo 123 > b $ hg add b $ hg diff --nodates diff -r 3903775176ed b --- /dev/null +++ b/b @@ -0,0 +1,1 @@ +123 $ hg diff --nodates -r tip diff -r 3903775176ed b --- /dev/null +++ b/b @@ -0,0 +1,1 @@ +123 $ echo foo > a $ hg diff --nodates diff -r 3903775176ed a --- a/a +++ b/a @@ -0,0 +1,1 @@ +foo diff -r 3903775176ed b --- /dev/null +++ b/b @@ -0,0 +1,1 @@ +123 $ hg diff -r "" hg: parse error: empty query [255] $ hg diff -r tip -r "" hg: parse error: empty query [255] Remove a file that was added via merge. Since the file is not in parent 1, it should not be in the diff. $ hg ci -m 'a=foo' a $ hg co -Cq null $ echo 123 > b $ hg add b $ hg ci -m "b" created new head $ hg merge 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg rm -f a $ hg diff --nodates Rename a file that was added via merge. Since the rename source is not in parent 1, the diff should be relative to /dev/null $ hg co -Cq 2 $ hg merge 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg mv a a2 $ hg diff --nodates diff -r cf44b38435e5 a2 --- /dev/null +++ b/a2 @@ -0,0 +1,1 @@ +foo $ hg diff --nodates --git diff --git a/a2 b/a2 new file mode 100644 --- /dev/null +++ b/a2 @@ -0,0 +1,1 @@ +foo