store: replace invocation of "getsize()" by "vfs.stat()"
This patch replaces invocation of "getsize()", which calls "os.stat()"
internally, by "vfs.stat()".
The object referred by "self.rawvfs" is used internally by
"_fncachevfs" and doesn't encode filename for each file API invocation.
This patch invokes "os.stat()" via "self.rawvfs" to avoid redundant
filename encoding: invocation of "os.stat()" via "self.vfs" hides
filename encoding and encoding result from caller, so it is not
appropriate, when both encoded and non-encoded filenames should be
yield.
Even though changeset b42b0729744d improved stream_out performance by
"self.pathsep + path", this patch replaces it by
"os.path.join(self.base, path)" of vfs. So, this may increase cost to
join path components.
But this shouldn't have large impact, because:
- such cost is much less than cost of "os.stat()" which causes
system call invocation
- "datafiles()" of store object is invoked only for "hg manifest
--all" or "hg verify" which are both heavy functions
This test requires parentrevspec support in revsets, so check for that
and skip the test if we're on an unusual hg that supports .t tests but
not parentrevspec.
$ python -c 'from mercurial import revset ; revset.methods["parentpost"]' || exit 80
Enable extensions used by this test.
$ cat >>$HGRCPATH <<EOF
> [extensions]
> graphlog=
> histedit=
> EOF
Repo setup.
$ hg init foo
$ cd foo
$ echo alpha >> alpha
$ hg addr
adding alpha
$ hg ci -m one
$ echo alpha >> alpha
$ hg ci -m two
$ echo alpha >> alpha
$ hg ci -m three
$ echo alpha >> alpha
$ hg ci -m four
$ echo alpha >> alpha
$ hg ci -m five
$ hg log --style compact --graph
@ 4[tip] 08d98a8350f3 1970-01-01 00:00 +0000 test
| five
|
o 3 c8e68270e35a 1970-01-01 00:00 +0000 test
| four
|
o 2 eb57da33312f 1970-01-01 00:00 +0000 test
| three
|
o 1 579e40513370 1970-01-01 00:00 +0000 test
| two
|
o 0 6058cbb6cfd7 1970-01-01 00:00 +0000 test
one
Run a dummy edit to make sure we get tip^^ correctly via revsingle.
$ HGEDITOR=cat hg histedit "tip^^"
pick eb57da33312f 2 three
pick c8e68270e35a 3 four
pick 08d98a8350f3 4 five
# Edit history between eb57da33312f and 08d98a8350f3
#
# Commands:
# p, pick = use commit
# e, edit = use commit, but stop for amending
# f, fold = use commit, but fold into previous commit (combines N and N-1)
# d, drop = remove commit from history
# m, mess = edit message without changing commit content
#
0 files updated, 0 files merged, 0 files removed, 0 files unresolved