'hg serve' used to close connections when sending a response with unknown
length ... such as a bundle or archive.
Now chunked encoding will be used for responses with unknown length, and the
connection do thus not have to be closed to indicate the end of the response.
Chunked encoding is only used if the length is unknown, if the connection
wouldn't be closed for other reasons, AND if it is a HTTP 1.1 request.
This will not benefit other users of hgweb ... but it can serve as an example
that it can be done.
hgweb internals will often produce empty writes - especially when returning
compressed data. hgweb is no middleware application and there is thus no
reason to pass them on to be processed in other layers.
Some archive types closed the open file passed to it, some didn't.
This could cause either missing or duplicate close and cause problems in hgweb.
The fix in 4f98880c1b4e should only have closed the compressors and archivers -
not the underlying file itself if no compressor is used.
The 'x' flag and the 'l' flag are very different. It is usually not a problem
to change the 'x' flag of a normal file independent of the content, but one
does not simply change the type of a file to 'l' independent of the content.
This removes the fmerge function that merged both 'x' and 'l' independent of
content early in the merge process. This correctly introduces some conflicts
instead of silent incorrect merges. 3-way flag merge will now be done in the
resolve process, right next to file content merge. Conflicts can thus be
resolved with (slightly inconvenient) resolve commands like 'resolve f --tool
internal:other'. It thus brings us closer to be able to re-solve manifest merge
after the merge and avoid prompts during merge.
This also removes the "conflicting flags for a - (n)one, e(x)ec or sym(l)ink?"
prompt that nobody could answer and that made it easy to mix symlink targets
and file contents up. Instead it will give a file merge where a sufficiently
clever merge tool can help resolving the issue.
The early prescan for move/remove and removal of moved files in applyupdates
was introduced with mergestate 5ff549be1f0c and rendered this chunk of code
irrelevant.
The impact of the chunk was reduced in 0309b0586c65 - but it could have been
removed completely.
A follow-up to 6847621b4da6.
internal:merge should never be picked for merging symlinks ... but in the test
suite we have HGMERGE="internal:merge" which bypasses all the usual merge-tool
cleverness. Without any output it can be hard to figure out what happened and
where the problem is.
Preserve the invariant that if P is a filecached property on X then
P in X.__dict__ => P in X._filecache.
Previously, it was possible for a filecached property to become out of sync
with the filesystem if it was set before getting it first, since the initial
filecacheentry was created in __get__.
Old behaviour:
repo.prop = x
repo.invalidate() # prop has no entry in _filecache, it's not removed
# from __dict__
repo.prop # returns x like before without checking with the
# filesystem
New:
repo.prop = x # an empty entry is created in _filecache
repo.invalidate() # prop is removed from __dict__
repo.prop # recreates prop
We need to make sure that if X is in the filecache then it's also in the
filecache owner's __dict__, otherwise it will go out of sync:
repo.X # first access to X, records stat info in
# filecache and updates __dict__
repo._filecache.clear() # removes X from _filecache but it's still in __dict__
repo.invalidate() # iterates over _filecache and removes entries
# from __dict__, but X isn't in _filecache, so
# it's kept in __dict__
repo.X # X is fetched from __dict__, bypassing the filecache
We call invalidate to remove properties from __dict__ because they're
possibly outdated and we'd like to check for a new version. Next time
the property is accessed the filecache mechanism checks the current stat
info with the one recorded at the last time the property was read, if
they're different it recreates the property.
Previously we refreshed the stat info on all properties in the filecache
when the lock is released, including properties that are missing from
__dict__. This is a problem because:
l = repo.lock()
repo.P # stat info S for P is recorded in _filecache
<changes are made to repo.P indirectly, e.g. underlying file is replaced>
# P's new stat info = S'
l.release() # filecache refreshes, records S' as P's stat info
At this point our filecache contains P with stat info S', but P's
version is from S, which is outdated.
The above happens during _rollback and strip. Currently we're wiping the
filecache and forcing everything to reload from scratch which works but
isn't the right solution.
The only way to access the branch of a changeset is currently to
create a changectx object and access its `branch()` method. Creating
a new Python object is costly and has a huge impact on code doing
heavy access to `branch()` (like branchmap).
This change introduces a new method on changelog that allows direct
access to the branch of a revision. See the next changeset for impact.
Creation of changectx objects is very slow, and they are not very
useful. We are going to drop them. The first step is to change the
function argument type.
We ensure all repositores created through `mercurial.hg.repository`
are "hidden" filtered. This is an even stronger enforcement than
86530c899687.
Citing Matt's response to changeset 86530c899687 installing filtering
in dispatch:
> Unfortunately, this means that code that doesn't go through dispatch (ie all
> those crazy misguided people using Mercurial as a library) are going to see
> these hidden changesets.
>
> Might be better to instead install the filter in localrepo construction by
> default and disable it in dispatch.
The existing workaround didn't work when no filename was specified.
If running in a context with warnings enabled and subsecond mtime it gave a
warning:
DeprecationWarning: use the name attribute
