This adds an experimental option 'strip-bundle2-version' which causes backup
bundles to use bundle2 formatting. Especially for generaldelta repositories,
this should provide significant performance gains for any operation that needs
to write a backup.
This diff adds support to writebundle to generate a bundle2 wrapper; upcoming
diffs will add an option to write a v2 changegroup part instead of v1 in these
bundles.
The next diff will add support for writing bundle2 files to writebundle, but
the bundle2 generator wants access to a ui object. This changes the signature
and callsites to pass one in.
Standins are read before and after an update/merge, and all the standins that
changes are handed to updatelfiles for getting their corresponding largefiles
updated. updatelfiles would then hash the largefile and see if it already
matched the new expected hash. If so, it would skip the update. If different,
the largefile would be updated.
It would happen very rarely that the largefile happened to match the new hash
(and thus not the old one) and the hashing would thus be pointless ... and
hashing is not cheap.
Instead, when it is known that the standin hash changed (from an update), just
update the standin unconditionally. If the largefile was "unsure" before the
update, it was hashed at that point, so we know there is nothing to preserve.
(Also, the hashing in updatelfiles was not used to preserve changes, but only
to be lazy about updating the largefile, so nothing is lost by not doing this
extra hashing.)
There might be rare situations where we now will update largefiles that didn't
have to be updated, but in all relevant cases (?) this will improve
performance.
Updates on a repo with some big largefiles has been seen to go from 9.19 s to
6.8 s - that is 26% less painful.
The --large, --normal and --lfsize args couldn't be passed to a subrepo before,
and files in the subrepos would be added silently (if -v wasn't specified) as
normal files. As an added bonus, 'hg add --dry-run' no longer prints that
largefiles would also be added as normal files as well.
The largefiles extensions needs to be able to pass --large, --normal and
--lfsize to subrepos via cmdutil.add() and hgsubrepo.add(). Rather than add
additional special purpose arguments, stop extracting the existing args from the
**opts passed to commands.add() and just pass them along.
0e5f75a52c9d introduced a way to share bookmarks. When a repository share that
shares bookmarks was created, a .hg/bookmarks.shared file was created to mark
the repository share as one that shares its bookmarks.
We have plans to introduce other levels of sharing, including a "full share"
mode. Rather than creating a new ".shared" file for each new thing that we may
want to share It seems better to create a single "shared" file that will list
what is shared for a given shared repository. This should make it much easier
to get a list of everything that is shared by a given shared repository.
The shared file contains a list of shared "items" (such as bookmarks). Each
shared "item" is added as a new line in the file. For now the only possible
entry in the file is "bookmarks".
This change touches every module in which repository.wopener was being used, and
changes it for the equivalent repository.wvfs.
It should now be possible to remove localrepo.wopener.
This change touches every module in which repository.sopener was being used, and
changes it for the equivalent repository.svfs.
It should now be possible to remove localrepo.sopener.
This change touches every module in which repository.opener was being used, and
changes it for the equivalent repository.vfs. This is meant to make it easier
to split the repository.vfs into several separate vfs.
It should now be possible to remove localrepo.opener.
Previously, there was no way to change the color label used for 'hg log'
output. This patch just adds the member to the object, a future patch will
change 'hg log' to use this.
Previously, there was no way to change the name used for 'hg log' output. This
was inconvenient for extensions that want a template name longer than 12
characters (e.g. remotebookmarks) but a different name for 'hg log'.
This patch only adds the member to the object, a future patch will update the
'hg log' code.
Extensions can declare compatibility with Mercurial versions. If an
error occurs, Mercurial will attempt to pin blame on an extension that
isn't marked as compatible.
While all bets are off when it comes to the internal API, my experience
has shown that a monthly/patch release of Mercurial has never broken any
of the extensions I've written. I think that expecting extensions to
declare compatibility with every patch release of Mercurial is asking a
bit much and adds little to no value.
This patch changes the blame logic from exact version matching to only
match on the major and minor Mercurial versions. This means that
extensions only need to mark themselves as compatible with the major,
quarterly releases and not the monthly ones in order to stay current and
avoid what is almost certainly unfair blame. This will mean less work
for extension authors and almost certainly fewer false positives in the
blame attribution.
The binary format description has always stated that the parttype should be simple,
but it was never really enforced. Recent discussions have convinced me we want to
keep the part type simple and easy to debug. There is enough extensibility in
the rest of the format.
I still get the following diff on Windows 7 with NTFS. I'm not sure if it is
expected and we should wildcard the link count, or if something needs to be
fixed.
@@ -58,7 +58,7 @@
$ ln bar baz
$ f bar -n baz -l --hexdump -t --sha1 --lines=9 -B 20
- bar: file, links=2, newer than baz, sha1=612ca68d0305c821750a
+ bar: file, links=0, newer than baz, sha1=612ca68d0305c821750a\r (esc)
0000: 31 0a 32 0a 33 0a 34 0a 35 0a 36 0a 37 0a 38 0a |1.2.3.4.5.6.7.8.|
0010: 39 0a |9.|
When the manifest revision is stored as a delta against a non-parent revision,
'_adjustlinkrev' could miss some file update because it was using the delta
only. We now use the 'fastread' method that uses the delta only when it makes
sense.
A test showcasing on the of possible issue have been added.
self._rbcrevslen is used to keep track of the number of good records on disk.
It should thus not be updated before the records actually have been written to
disk.
The cache files are usually append only but will automatically be truncated and
recover in exceptional situations. Add a debug notice when such exceptional
situations are encountered.
The tests that were added with the revision branch cache in 6aa81b0c4658 had
suffered from bit rot in the development iterations. They were no longer that
"good".
Now, the tests are rewritten and reworked to be more readable and maintainable
and relevant for the actual implementation.
This also utilizes the new 'f' helper tool for keeping an eye the cache files.
This tool is like the collection of tools found in a unix environment but are
cross platform and stable and suitable for our needs in the test suite.
The main reason it is "needed" now is for hexdump of revision branch cache to
keep an eye on how it changes and make sure the format is stable.
It is a very generic tool that can end up being used a lot in tests, so I gave
it very generic name.
The testdir is already added to $PYTHONPATH - I think it makes sense and is
convenient to add it to $PATH too.
The following binaries are invoked from tests using full path with $TESTDIR/ -
they can now be used without specifying path:
dumbhttp.py
dummyssh
filterpyflakes.py
generate-working-copy-states.py
get-with-headers.py
hghave
histedit-helpers.sh
killdaemons.py
md5sum.py
notcapable
printenv.py
readlink.py
revlog-formatv0.py
run-tests.py
svn-safe-append.py
svnxml.py
tinyproxy.py
When receiving a delta via exchange, three possible storage outcomes emerge:
1. The delta is added directly to the revlog. ("fast-path")
2. A freshly-computed delta with a different base is stored.
3. The new revision's fulltext is computed and stored outright.
Both (2) and (3) require materializing the full text of the new revision by
applying the delta to its base. This is typically followed by a hash check.
The new flags argument allows callers to _addrevision to signal that they
expect that hash check to fail. We can use this opportunity to verify that
expectation. If the hash fails, require the flag be set; if the hash passes,
require the flag be unset.
Rather than simply eliding the hash check, this approach provides some
assurance that the censored flag is not applied to valid revisions.
Read more at: http://mercurial.selenic.com/wiki/CensorPlan
For revlog index flags to be useful to other parts of Mercurial, they need to
be settable when writing revisions. The current use case for revlog index
flags is the censorship feature: http://mercurial.selenic.com/wiki/CensorPlan
While the censor flag could be inferred in _addrevision by interrogating the
text/delta being added, that would bury the censorship logic and
inappropriately couple it to all revision creation.
This flag bit will be used to cheaply signal censorship presence to upper
layers (exchange, verify). It indicates that censorship metadata is present
but does not attest to the verifiability of that metadata.
For the censorship design, see: http://mercurial.selenic.com/wiki/CensorPlan
Asking for TLSv1 locks us out of TLSv1_2 etc. This is at least less
bad. Ideally we'd use ssl.create_default_context(), but that causes
more mayhem in the testsuite than I really want to deal with right
now.
We really just want to support the newest thing possible, so we may as
well consolidate that knowledge into this module. Right now this
doesn't change any behavior, but a future change will fix the defaults
for Python 2.7.9 so we can use slightly better defaults there (which
is the only place it's possible at the moment.)
