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url: move URL parsing functions into util to improve startup time...
url: move URL parsing functions into util to improve startup time The introduction of the new URL parsing code has created a startup time regression. This is mainly due to the use of url.hasscheme() in the ui class. It ends up importing many libraries that the url module requires. This fix helps marginally, but if we can get rid of the urllib import in the URL parser all together, startup time will go back to normal. perfstartup time before the URL refactoring (8796fb6af67e): ! wall 0.050692 comb 0.000000 user 0.000000 sys 0.000000 (best of 100) current startup time (139fb11210bb): ! wall 0.070685 comb 0.000000 user 0.000000 sys 0.000000 (best of 100) after this change: ! wall 0.064667 comb 0.000000 user 0.000000 sys 0.000000 (best of 100)
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test-mq-caches.t
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$ branches=.hg/cache/branchheads
$ echo '[extensions]' >> $HGRCPATH
$ echo 'mq =' >> $HGRCPATH
$ show_branch_cache()
> {
> # force cache (re)generation
> hg log -r does-not-exist 2> /dev/null
> hg log -r tip --template 'tip: {rev}\n'
> if [ -f $branches ]; then
> sort $branches
> else
> echo No branch cache
> fi
> if [ "$1" = 1 ]; then
> for b in foo bar; do
> hg log -r $b --template "branch $b: "'{rev}\n'
> done
> fi
> }
$ hg init a
$ cd a
$ hg qinit -c
mq patch on an empty repo
$ hg qnew p1
$ show_branch_cache
tip: 0
No branch cache
$ echo > pfile
$ hg add pfile
$ hg qrefresh -m 'patch 1'
$ show_branch_cache
tip: 0
No branch cache
some regular revisions
$ hg qpop
popping p1
patch queue now empty
$ echo foo > foo
$ hg add foo
$ echo foo > .hg/branch
$ hg ci -m 'branch foo'
$ echo bar > bar
$ hg add bar
$ echo bar > .hg/branch
$ hg ci -m 'branch bar'
$ show_branch_cache
tip: 1
c229711f16da3d7591f89b1b8d963b79bda22714 1
c229711f16da3d7591f89b1b8d963b79bda22714 bar
dc25e3827021582e979f600811852e36cbe57341 foo
add some mq patches
$ hg qpush
applying p1
now at: p1
$ show_branch_cache
tip: 2
c229711f16da3d7591f89b1b8d963b79bda22714 1
c229711f16da3d7591f89b1b8d963b79bda22714 bar
dc25e3827021582e979f600811852e36cbe57341 foo
$ hg qnew p2
$ echo foo > .hg/branch
$ echo foo2 >> foo
$ hg qrefresh -m 'patch 2'
$ show_branch_cache 1
tip: 3
c229711f16da3d7591f89b1b8d963b79bda22714 1
c229711f16da3d7591f89b1b8d963b79bda22714 bar
dc25e3827021582e979f600811852e36cbe57341 foo
branch foo: 3
branch bar: 2
removing the cache
$ rm $branches
$ show_branch_cache 1
tip: 3
c229711f16da3d7591f89b1b8d963b79bda22714 1
c229711f16da3d7591f89b1b8d963b79bda22714 bar
dc25e3827021582e979f600811852e36cbe57341 foo
branch foo: 3
branch bar: 2
importing rev 1 (the cache now ends in one of the patches)
$ hg qimport -r 1 -n p0
$ show_branch_cache 1
tip: 3
c229711f16da3d7591f89b1b8d963b79bda22714 1
c229711f16da3d7591f89b1b8d963b79bda22714 bar
dc25e3827021582e979f600811852e36cbe57341 foo
branch foo: 3
branch bar: 2
$ hg log -r qbase --template 'qbase: {rev}\n'
qbase: 1
detect an invalid cache
$ hg qpop -a
popping p2
popping p1
popping p0
patch queue now empty
$ hg qpush -a
applying p0
applying p1
applying p2
now at: p2
$ show_branch_cache
tip: 3
dc25e3827021582e979f600811852e36cbe57341 0
dc25e3827021582e979f600811852e36cbe57341 foo