tags-cache: directly perform a monimal walk for hgtagsfnodescache warming
We do something narrower than the path retrieving data. So lets use dedicated
code instead.
This provides further useful speedup:
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# benchmark.name = hg.debug.debug-update-cache
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.pre-state = warm
before-this-series: 19.947581
skip-fnode-filter: 18.916804 (-5.17%, -1.03)
use-rev-num: 17.493725 (-12.30%, -2.45)
this-changesets: 15.919466 (-20.19%, -4.03)
#require clang-format
Test that a simple "hg fix" configuration for clang-format works.
$ cat >> $HGRCPATH <<EOF
> [extensions]
> fix =
> [experimental]
> evolution.createmarkers=True
> evolution.allowunstable=True
> [fix]
> clang-format:command=clang-format --style=Google --assume-filename={rootpath}
> clang-format:linerange=--lines={first}:{last}
> clang-format:pattern=set:**.cpp or **.hpp
> EOF
$ hg init repo
$ cd repo
$ printf "void foo(){int x=2;}\n" > foo.cpp
$ printf "void\nfoo();\n" > foo.hpp
$ hg commit -Am "foo commit"
adding foo.cpp
adding foo.hpp
$ hg cat -r tip *
void foo(){int x=2;}
void
foo();
$ hg fix -r tip
$ hg cat -r tip *
void foo() { int x = 2; }
void foo();
$ cd ..