obsolete: don't use os.stat in repo.obsstore.__nonzero__ if it's static HTTP
If a repo is accessed via static HTTP, then we obviously can't use os.stat() to
just peek at the file size. Let's download the entire file to check its size.
Yes, this feels wasteful, but:
1. If we're cloning or pulling a repo from a static HTTP server, we need the
contents of the obsstore anyway.
2. Implementing statichttpvfs.stat() that uses HEAD will result in one more
request to a static-only HTTP server, which is already slow. Also parsing a
response to a HEAD request to construct os.stat_result is pretty hacky.
There's also a question of the remote server properly supporting HEAD method
and reporting at least file size.
3. Implementing statichttpvfs.stat() that uses GET is pretty much the same
thing as we do here, except we can't even cache the response easily, unlike
simply accessing obsstore._data, which is @propertycache'd.
Importing statichttprepo locally to avoid circular import.
See also: 4507bc001365 and commit message of f8f2ecdde4b5.
Differential Revision: https://phab.mercurial-scm.org/D12195
#require no-windows
$ . "$TESTDIR/remotefilelog-library.sh"
$ hg init master
$ cd master
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> server=True
> EOF
$ echo x > foo
$ echo y > bar
$ hg commit -qAm one
$ hg tag tag1
$ cd ..
# clone with tags
$ hg clone --shallow ssh://user@dummy/master shallow --noupdate --config remotefilelog.excludepattern=.hgtags
streaming all changes
3 files to transfer, 662 bytes of data (no-zstd !)
transferred 662 bytes in * seconds (* */sec) (glob) (no-zstd !)
3 files to transfer, 665 bytes of data (zstd !)
transferred 665 bytes in * seconds (* */sec) (glob) (zstd !)
searching for changes
no changes found
$ cat >> shallow/.hg/hgrc <<EOF
> [remotefilelog]
> cachepath=$PWD/hgcache
> debug=True
> reponame = master
> excludepattern=.hgtags
> [extensions]
> remotefilelog=
> EOF
$ cd shallow
$ ls .hg/store/data
~2ehgtags.i
$ hg tags
tip 1:6ce44dcfda68
tag1 0:e0360bc0d9e1
$ hg update
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob)
# pull with tags
$ cd ../master
$ hg tag tag2
$ cd ../shallow
$ hg pull
pulling from ssh://user@dummy/master
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files
new changesets 6a22dfa4fd34
(run 'hg update' to get a working copy)
$ hg tags
tip 2:6a22dfa4fd34
tag2 1:6ce44dcfda68
tag1 0:e0360bc0d9e1
$ hg update
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ ls .hg/store/data
~2ehgtags.i
$ hg log -l 1 --stat
changeset: 2:6a22dfa4fd34
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Added tag tag2 for changeset 6ce44dcfda68
.hgtags | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)