use 'x is None' instead of 'x == None'
The built-in None object is a singleton and it is therefore safe to
compare memory addresses with is. It is also faster, how much depends
on the object being compared. For a simple type like str I get:
| s = "foo" | s = None
----------+-----------+----------
s == None | 0.25 usec | 0.21 usec
s is None | 0.17 usec | 0.17 usec
% prepare repo a
% list files in store/data (should show a 'b.d')
.hg/store/data/a.i
.hg/store/data/b.d
.hg/store/data/b.i
% default operation
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
a
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 11 changesets, 11 total revisions
% no update
a not present
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 11 changesets, 11 total revisions
% default destination
destination directory: a
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
a
% check that we drop the file:// from the path before
% writing the .hgrc
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
% check that path aliases are expanded
a#0
% use --pull
requesting all changes
adding changesets
adding manifests
adding file changes
added 11 changesets with 11 changes to 2 files
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 11 changesets, 11 total revisions
% clone to .
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved