treemanifest: allow setting flag to 't' When using treemanifests, an on-disk manifest entry with the 't' flag set means that that entry is a directory and not a file. When read into memory, these become instances of the treemanifest class. The 't' flag should therefore never be visible to outside of manifest.py, so setflag() checks that it is not called with the 't' flag. However, it turns out that it will be useful for the narrowhg extension to expose the 't' flag to the user (see below), so let's drop the assertion. The narrowhg extension allows cloning only a given set of files and directories. Filelogs and dirlogs that don't match that set will not be included in the clone. The extension currently doesn't work with treemanifests. I plan on changing it so directories outside the narrow clone appear in the manifest. For example, if a directory 'outside/' is not part of the narrow clone, it will look like a file 'outside' with the 't' flag set. That will make e.g. manifestmerge() just work in most cases (and make it well prepared to handle the other cases).

treemanifest: use "cp xyz/." instead of "cp xyz/*" This is more similar to cp -T because it covers hidden files.

templatefilters: drop old jsonescape() function It's been superseded by encoding.jsonescape(paranoid=True).

templatefilters: make json filter be byte-transparent (BC) (issue4926) This is necessary to preserve filename encoding over JSON. Instead, this patch inserts "|utf8" where non-ascii local-encoding texts can be passed to "|json". See also the commit that introduced "utf8" filter.

hgweb: add option to convert encoding of graphdata() Because future patches will change "|json" filter to handle input bytes transparently, i.e. use UTF-8b encoding, "{jsdata}" must keep data in UTF-8 bytes, whereas "{nodes}" are text. This patch inserts encodestr() where localstr is likely to survive.

hgweb: remove unused argument from graphdata() factory As graphdata() is wrapped by lambda, there's no reason to pass unused arguments to it.