Skip to content
Snippets Groups Projects
Commit c96148346af8 authored by Na'Tosha Bard's avatar Na'Tosha Bard
Browse files

largefiles: cache new largefiles for new heads when pulling

When the user pulls from a remote repository that is not his default repo, it
is quite likely that he will pull a new head.  This means that if he tries to
merge or rebase with the other head, he will run into a problem becuase
largefiles has no way of tracking where the remote repository for this other
head is, so it cannot download the largefiles from this other remote repository.
It will attempt to download them from its default remote repository, which will
not yet contain the largefiles.

This patch solves this problem by caching any new largefiles for all heads
directly into the system cache at the time of the pull, so they are available
later.

This behavior is actually more in line with Mercurial's distributed nature,
because pulling already implies we have a connection to the remote server, but
merging or rebasing does not.
parent d4c0fa71de01
No related branches found
No related tags found
No related merge requests found
......@@ -658,6 +658,19 @@
if not source:
source = 'default'
result = orig(ui, repo, source, **opts)
# If we do not have the new largefiles for any new heads we pulled, we
# will run into a problem later if we try to merge or rebase with one of
# these heads, so cache the largefiles now direclty into the system
# cache.
ui.status(_("caching new largefiles\n"))
numcached = 0
branches = repo.branchmap()
for branch in branches:
heads = repo.branchheads(branch)
for head in heads:
(cached, missing) = lfcommands.cachelfiles(ui, repo, head)
numcached += len(cached)
ui.status(_("%d largefiles cached\n" % numcached))
return result
def override_rebase(orig, ui, repo, **opts):
......
......@@ -37,6 +37,8 @@
adding file changes
added 1 changesets with 1 changes to 1 files
(run 'hg update' to get a working copy)
caching new largefiles
0 largefiles cached
Update working directory to "tip", which requires largefile("large"),
but there is no cache file for it. So, hg must treat it as
......
......@@ -460,6 +460,8 @@
adding file changes
added 1 changesets with 2 changes to 2 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
caching new largefiles
0 largefiles cached
$ hg rebase
getting changed largefiles
1 largefiles updated, 0 removed
......@@ -610,7 +612,8 @@
searching 1 changesets for largefiles
verified existence of 3 revisions of 3 largefiles
Merging does not revert to old versions of largefiles (this has also
been very problematic).
Merging does not revert to old versions of largefiles and also check
that merging after having pulled from a non-default remote works
correctly.
$ cd ..
......@@ -615,6 +618,6 @@
$ cd ..
$ hg clone -r 7 e f
$ hg clone -r 7 e temp
adding changesets
adding manifests
adding file changes
......@@ -623,6 +626,14 @@
5 files updated, 0 files merged, 0 files removed, 0 files unresolved
getting changed largefiles
3 largefiles updated, 0 removed
$ hg clone temp f
updating to branch default
5 files updated, 0 files merged, 0 files removed, 0 files unresolved
getting changed largefiles
3 largefiles updated, 0 removed
# Delete the largefiles in the largefiles system cache so that we have an
# opportunity to test that caching after a pull works.
$ rm ${USERCACHE}/*
$ cd f
$ echo "large4-merge-test" > sub/large4
$ hg commit -m "Modify large4 to test merge"
......@@ -636,6 +647,8 @@
adding file changes
added 2 changesets with 4 changes to 4 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
caching new largefiles
2 largefiles cached
$ hg merge
merging sub/large4
largefile sub/large4 has a merge conflict
......
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment