Mercurial > hg
view tests/test-permissions.t @ 28240:1ac8ce137377
changegroup: fix treemanifests on merges
The current code for generating treemanifest revisions takes the list
of files in the changeset and finds the directories from them. This
does not work for merges, since a merge may pick file A from one side
and file B from another and neither of them would appear in the
changeset's "files" list, but the manifest would still change.
Fix this by instead walking the root manifest log for all needed
revisions, storing all needed file and subdirectory revisions, then
recursively visiting the subdirectories. This also turns out to be
faster: cloning a version of hg core converted to treemanifests went
from ~28s to ~19s (timing somewhat unfair: before this patch, timed
until crash; after this patch, timed until manifests complete).
The new algorithm is used only on treemanifest repos. Although it
works equally well on flat manifests, we leave the iteration over
files in the changeset for flat manifests for now.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Fri, 12 Feb 2016 23:09:09 -0800 |
parents | 8fb6844a4ff1 |
children | 435f63d12475 |
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#require unix-permissions no-root $ hg init t $ cd t $ echo foo > a $ hg add a $ hg commit -m "1" $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 1 changesets, 1 total revisions $ chmod -r .hg/store/data/a.i $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files abort: Permission denied: $TESTTMP/t/.hg/store/data/a.i [255] $ chmod +r .hg/store/data/a.i $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 1 changesets, 1 total revisions $ chmod -w .hg/store/data/a.i $ echo barber > a $ hg commit -m "2" trouble committing a! abort: Permission denied: $TESTTMP/t/.hg/store/data/a.i [255] $ chmod -w . $ hg diff --nodates diff -r 2a18120dc1c9 a --- a/a +++ b/a @@ -1,1 +1,1 @@ -foo +barber $ chmod +w . $ chmod +w .hg/store/data/a.i $ mkdir dir $ touch dir/a $ hg status M a ? dir/a $ chmod -rx dir $ hg status dir: Permission denied M a Reenable perm to allow deletion: $ chmod +rx dir $ cd ..