rust-status: add bare `hg status` support in hg-core
A lot of performance remains to be gained, most notably by doing more things
in parallel, but also by caching, not falling back to Python but switching
to another regex engine, etc..
I have measured on multiple repositories that this change, when in combination
with the next two patches, improve bare `hg status` performance, and has no
observable impact when falling back (because it does so early).
On the Netbeans repository:
C: 840ms
Rust+C: 556ms
Mozilla Central with the one pattern that causes a fallback removed:
C: 2.315s
Rust+C: 1.700 s
Differential Revision: https://phab.mercurial-scm.org/D7929
$ hg init a
$ hg clone a b
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd a
with no paths:
$ hg paths
$ hg paths unknown
not found!
[1]
$ hg paths -Tjson
[
]
with paths:
$ echo '[paths]' >> .hg/hgrc
$ echo 'dupe = ../b#tip' >> .hg/hgrc
$ echo 'expand = $SOMETHING/bar' >> .hg/hgrc
$ hg in dupe
comparing with $TESTTMP/b
no changes found
[1]
$ cd ..
$ hg -R a in dupe
comparing with $TESTTMP/b
no changes found
[1]
$ cd a
$ hg paths
dupe = $TESTTMP/b#tip
expand = $TESTTMP/a/$SOMETHING/bar
$ SOMETHING=foo hg paths
dupe = $TESTTMP/b#tip
expand = $TESTTMP/a/foo/bar
#if msys
$ SOMETHING=//foo hg paths
dupe = $TESTTMP/b#tip
expand = /foo/bar
#else
$ SOMETHING=/foo hg paths
dupe = $TESTTMP/b#tip
expand = /foo/bar
#endif
$ hg paths -q
dupe
expand
$ hg paths dupe
$TESTTMP/b#tip
$ hg paths -q dupe
$ hg paths unknown
not found!
[1]
$ hg paths -q unknown
[1]
formatter output with paths:
$ echo 'dupe:pushurl = https://example.com/dupe' >> .hg/hgrc
$ hg paths -Tjson | sed 's|\\\\|\\|g'
[
{
"name": "dupe",
"pushurl": "https://example.com/dupe",
"url": "$TESTTMP/b#tip"
},
{
"name": "expand",
"url": "$TESTTMP/a/$SOMETHING/bar"
}
]
$ hg paths -Tjson dupe | sed 's|\\\\|\\|g'
[
{
"name": "dupe",
"pushurl": "https://example.com/dupe",
"url": "$TESTTMP/b#tip"
}
]
$ hg paths -Tjson -q unknown
[
]
[1]
log template:
(behaves as a {name: path-string} dict by default)
$ hg log -rnull -T '{peerurls}\n'
dupe=$TESTTMP/b#tip expand=$TESTTMP/a/$SOMETHING/bar
$ hg log -rnull -T '{join(peerurls, "\n")}\n'
dupe=$TESTTMP/b#tip
expand=$TESTTMP/a/$SOMETHING/bar
$ hg log -rnull -T '{peerurls % "{name}: {url}\n"}'
dupe: $TESTTMP/b#tip
expand: $TESTTMP/a/$SOMETHING/bar
$ hg log -rnull -T '{get(peerurls, "dupe")}\n'
$TESTTMP/b#tip
(sub options can be populated by map/dot operation)
$ hg log -rnull \
> -T '{get(peerurls, "dupe") % "url: {url}\npushurl: {pushurl}\n"}'
url: $TESTTMP/b#tip
pushurl: https://example.com/dupe
$ hg log -rnull -T '{peerurls.dupe.pushurl}\n'
https://example.com/dupe
(in JSON, it's a dict of urls)
$ hg log -rnull -T '{peerurls|json}\n' | sed 's|\\\\|/|g'
{"dupe": "$TESTTMP/b#tip", "expand": "$TESTTMP/a/$SOMETHING/bar"}
password should be masked in plain output, but not in machine-readable/template
output:
$ echo 'insecure = http://foo:insecure@example.com/' >> .hg/hgrc
$ hg paths insecure
http://foo:***@example.com/
$ hg paths -Tjson insecure
[
{
"name": "insecure",
"url": "http://foo:insecure@example.com/"
}
]
$ hg log -rnull -T '{get(peerurls, "insecure")}\n'
http://foo:insecure@example.com/
zeroconf wraps ui.configitems(), which shouldn't crash at least:
$ hg paths --config extensions.zeroconf=
dupe = $TESTTMP/b#tip
dupe:pushurl = https://example.com/dupe
expand = $TESTTMP/a/$SOMETHING/bar
insecure = http://foo:***@example.com/
$ cd ..
sub-options for an undeclared path are ignored
$ hg init suboptions
$ cd suboptions
$ cat > .hg/hgrc << EOF
> [paths]
> path0 = https://example.com/path0
> path1:pushurl = https://example.com/path1
> EOF
$ hg paths
path0 = https://example.com/path0
unknown sub-options aren't displayed
$ cat > .hg/hgrc << EOF
> [paths]
> path0 = https://example.com/path0
> path0:foo = https://example.com/path1
> EOF
$ hg paths
path0 = https://example.com/path0
:pushurl must be a URL
$ cat > .hg/hgrc << EOF
> [paths]
> default = /path/to/nothing
> default:pushurl = /not/a/url
> EOF
$ hg paths
(paths.default:pushurl not a URL; ignoring)
default = /path/to/nothing
#fragment is not allowed in :pushurl
$ cat > .hg/hgrc << EOF
> [paths]
> default = https://example.com/repo
> invalid = https://example.com/repo
> invalid:pushurl = https://example.com/repo#branch
> EOF
$ hg paths
("#fragment" in paths.invalid:pushurl not supported; ignoring)
default = https://example.com/repo
invalid = https://example.com/repo
invalid:pushurl = https://example.com/repo
$ cd ..
'file:' disables [paths] entries for clone destination
$ cat >> $HGRCPATH <<EOF
> [paths]
> gpath1 = http://hg.example.com
> EOF
$ hg clone a gpath1
abort: cannot create new http repository
[255]
$ hg clone a file:gpath1
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd gpath1
$ hg -q id
000000000000
$ cd ..