abort: added logic for of hg abort
This is part of `GSoC19` project `Implement abort and
continue commands`. This patch is part of the `abort plan`.
This adds the basic logic for `hg abort`. This command
aborts an multistep operation like graft, histedit, rebase,
merge and unshelve if they are in an unfinished state.
The first part of the logic is determining the unfinished
operation from the state detection API under `statemod`.
This API is extended to support `hg abort` by adding a method
to register the abort logic as a function (here `abortfunc`).
Once the unfinished operation is determined the registered
logic is used to abort the command. The benefit of this kind
of framework is that any new extension developed can support
`hg abort` by registering the command and logic under
statedetection API.
`hg abort` currently supports `--dry-run/-n` flag only.
It is used to dry run `hg abort`
Further patches sequentially add support for `graft`, `rebase`,
`unshelve`, `histedit` and `merge`.
Differential Revision: https://phab.mercurial-scm.org/D6566
$ cat > adddrop.py <<EOF
> from mercurial import registrar
> cmdtable = {}
> command = registrar.command(cmdtable)
> @command(b'debugadddrop',
> [(b'', b'drop', False, b'drop file from dirstate', b'FILE'),
> (b'', b'normal-lookup', False, b'add file to dirstate', b'FILE')],
> b'hg debugadddrop')
> def debugadddrop(ui, repo, *pats, **opts):
> '''Add or drop unnamed arguments to or from the dirstate'''
> drop = opts.get('drop')
> nl = opts.get('normal_lookup')
> if nl and drop:
> raise error.Abort('drop and normal-lookup are mutually exclusive')
> wlock = repo.wlock()
> try:
> for file in pats:
> if opts.get('normal_lookup'):
> repo.dirstate.normallookup(file)
> else:
> repo.dirstate.drop(file)
>
> repo.dirstate.write(repo.currenttransaction())
> finally:
> wlock.release()
> EOF
$ echo "[extensions]" >> $HGRCPATH
$ echo "debugadddrop=`pwd`/adddrop.py" >> $HGRCPATH
basic test for hg debugrebuildstate
$ hg init repo
$ cd repo
$ touch foo bar
$ hg ci -Am 'add foo bar'
adding bar
adding foo
$ touch baz
$ hg add baz
$ hg rm bar
$ hg debugrebuildstate
state dump after
$ hg debugstate --no-dates | sort
n 0 -1 unset bar
n 0 -1 unset foo
$ hg debugadddrop --normal-lookup file1 file2
$ hg debugadddrop --drop bar
$ hg debugadddrop --drop
$ hg debugstate --no-dates
n 0 -1 unset file1
n 0 -1 unset file2
n 0 -1 unset foo
$ hg debugrebuildstate
status
$ hg st -A
! bar
? baz
C foo
Test debugdirstate --minimal where a file is not in parent manifest
but in the dirstate
$ touch foo bar qux
$ hg add qux
$ hg remove bar
$ hg status -A
A qux
R bar
? baz
C foo
$ hg debugadddrop --normal-lookup baz
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
n 0 -1 * baz (glob)
n 644 0 * foo (glob)
a 0 -1 * qux (glob)
$ hg debugrebuilddirstate --minimal
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
n 644 0 * foo (glob)
a 0 -1 * qux (glob)
$ hg status -A
A qux
R bar
? baz
C foo
Test debugdirstate --minimal where file is in the parent manifest but not the
dirstate
$ hg manifest
bar
foo
$ hg status -A
A qux
R bar
? baz
C foo
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
n 644 0 * foo (glob)
a 0 -1 * qux (glob)
$ hg debugadddrop --drop foo
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
a 0 -1 * qux (glob)
$ hg debugrebuilddirstate --minimal
$ hg debugdirstate --no-dates
r 0 0 * bar (glob)
n 0 -1 * foo (glob)
a 0 -1 * qux (glob)
$ hg status -A
A qux
R bar
? baz
C foo