* httprangereader: name, __iter__ and close are needed to mimic file object
* static-http opener:
- disallow write/append modes
- add (unused) atomictemp parameter
* static-http repo:
- root attribute is needed for localrepo.dirstate()
- _branch* attributes are required for commitctx and branchmap calls
* tags: force repo.opener.__iter__ call earlier to force httprangereader
to try to read the cache early, to avoid raising IOError later.
- self.tagscache to self._tags
- self._tagstypecache to self._tagtypes
- this is for consistency, readability, privacy, and to subtly hint
that "caching" is something else
- If remote does not support Range header, 200 is answered instead of 206. The
HTTPRangeHandler left these responses unchanged, so the data has to be sliced
by the receiver.
- httprangereader file pointer was not updated.
- unify httprangereader.py and statichttprepo.py:rangegreader()
- build the opener from url.py, that allows use to puse username and password
in the url, to follow the proxy settings from hgrc, etc.
Changeset 055df4ac4b13 which fixed issue965 (hg clone static-http
does not work for empty repos) broke cloning of repos with old layout
(without store) via static-http.
This fix makes cloning from old-style repositories possible again,
but will not allow cloning of empty old-style repositories as this
can not be detected reliably.
This change adds new methods sjoin and sopener for accessing the
following elements:
- changelog
- manifest
- data/
- journal and undo log
- repo lock
This will simplify sharing this data and escaping paths
revlogng results in smaller indexes, can address larger data files, and
supports flags and version numbers.
By default the original revlog format is used. To use the new format,
use the following .hgrc field:
[revlog]
# format choices are 0 (classic revlog format) and 1 revlogng
format=1
revlog.group cached every chunk from the revlog, the behaviour was
needed to minimize the roundtrip with old-http.
We now cache the revlog data ~4MB at a time.
The memory used server side when pulling goes down to 35Mo maximum
whereas without the patch more than 160Mo was used when cloning the linux kernel
repository.
The time used by cloning is higher mainly because of the check in revlog.revision.
before
110.25user 20.90system 2:52.00elapsed 76%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+708707minor)pagefaults 0swaps
after
117.56user 18.86system 2:50.43elapsed 80%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+748366minor)pagefaults 0swaps
- create new statichttprepo class
- pull remote bits out of localrepo
- pull remote bits out of util.opener
- switch hg.repository to use statichttprepo
