hg-core: add basic config module
The config module exposes a `Config` struct, unused for now.
It only reads the config file local to the repository, but handles all valid
patterns and includes/unsets.
It is structured in layers instead of erasing by reverse order of precedence,
allowing us to transparently know more about the config for debugging purposes,
and potentially other things I haven't thought about yet.
This change also introduces `format_bytes!` to `hg-core`.
Differential Revision: https://phab.mercurial-scm.org/D9408
$ hg init
$ echo This is file a1 > a
$ hg add a
$ hg commit -m "commit #0"
$ echo This is file b1 > b
$ hg add b
$ hg commit -m "commit #1"
$ hg update 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo This is file c1 > c
$ hg add c
$ hg commit -m "commit #2"
created new head
$ hg merge 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ rm b
$ echo This is file c22 > c
Test hg behaves when committing with a missing file added by a merge
$ hg commit -m "commit #3"
abort: cannot commit merge with missing files
[255]
Test conflict*() revsets
# Bad usage
$ hg log -r 'conflictlocal(foo)'
hg: parse error: conflictlocal takes no arguments
[10]
$ hg log -r 'conflictother(foo)'
hg: parse error: conflictother takes no arguments
[10]
$ hg co -C .
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
# No merge parents when not merging
$ hg log -r 'conflictlocal() + conflictother()'
# No merge parents when there is no conflict
$ hg merge 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg log -r 'conflictlocal() + conflictother()'
$ hg co -C .
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo conflict > b
$ hg ci -Aqm 'conflicting change to b'
$ hg merge 1
merging b
warning: conflicts while merging b! (edit, then use 'hg resolve --mark')
0 files updated, 0 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
# Shows merge parents when there is a conflict
$ hg log -r 'conflictlocal()' -T '{rev} {desc}\n'
3 conflicting change to b
$ hg log -r 'conflictother()' -T '{rev} {desc}\n'
1 commit #1