view tests/test-demandimport.py.out @ 20553:86cefb15e7b5

cmdutil: implemented new lazy increasingwindows

Now log can work in a lazy way and get results as soon as they are processed.

Performance Benchmarking:

$ time hg log -l1 -qr "branch(default)"
0:9117c6561b0b

real  0m2.303s
user  0m2.252s
sys 0m0.048s

$ time ./hg log -l1 -qr "branch(default)"
0:9117c6561b0b

real  0m0.238s
user  0m0.199s
sys 0m0.037s

os = <unloaded module 'os'>
os.system = <built-in function system>
os = <module 'os' from '?'>
util = <unloaded module 'util'>
util.system = <function system at 0x?>
util = <module 'mercurial.util' from '?'>
util.system = <function system at 0x?>
fred = <unloaded module 're'>
re = <unloaded module 'sys'>
fred = <unloaded module 're'>
fred.sub = <function sub at 0x?>
fred = <proxied module 're'>
re = <unloaded module 'sys'>
re.stderr = <open file '<whatever>', mode 'w' at 0x?>
re = <proxied module 'sys'>