rhg: desambiguate status without decompressing filelog if possible
When status is unsure based on `stat()` and the dirstate if a file is clean
or modified, we need to compare it against the filelog.
This comparison can skip looking at contents if the lengths differ.
This changeset optimize this further to deduce what we can about the length
if the filelog without decompressing it or resolving deltas.
Differential Revision: https://phab.mercurial-scm.org/D11965
test sparse with --verbose and -T json
$ hg init myrepo
$ cd myrepo
$ cat > .hg/hgrc <<EOF
> [extensions]
> sparse=
> strip=
> EOF
$ echo a > show
$ echo x > hide
$ hg ci -Aqm 'initial'
$ echo b > show
$ echo y > hide
$ echo aa > show2
$ echo xx > hide2
$ hg ci -Aqm 'two'
Verify basic --include and --reset
$ hg up -q 0
$ hg debugsparse --include 'hide' -Tjson
[
{
"exclude_rules_added": 0,
"files_added": 0,
"files_conflicting": 0,
"files_dropped": 1,
"include_rules_added": 1,
"profiles_added": 0
}
]
$ hg debugsparse --clear-rules
$ hg debugsparse --include 'hide' --verbose
removing show
Profiles changed: 0
Include rules changed: 1
Exclude rules changed: 0
$ hg debugsparse --reset -Tjson
[
{
"exclude_rules_added": 0,
"files_added": 1,
"files_conflicting": 0,
"files_dropped": 0,
"include_rules_added": -1,
"profiles_added": 0
}
]
$ hg debugsparse --include 'hide'
$ hg debugsparse --reset --verbose
getting show
Profiles changed: 0
Include rules changed: -1
Exclude rules changed: 0
Verifying that problematic files still allow us to see the deltas when forcing:
$ hg debugsparse --include 'show*'
$ touch hide
$ hg debugsparse --delete 'show*' --force -Tjson
pending changes to 'hide'
[
{
"exclude_rules_added": 0,
"files_added": 0,
"files_conflicting": 1,
"files_dropped": 0,
"include_rules_added": -1,
"profiles_added": 0
}
]
$ hg debugsparse --include 'show*' --force
pending changes to 'hide'
$ hg debugsparse --delete 'show*' --force --verbose
pending changes to 'hide'
Profiles changed: 0
Include rules changed: -1
Exclude rules changed: 0