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
#testcases lfs-on lfs-off
#if lfs-on
$ cat >> $HGRCPATH <<EOF
> [extensions]
> lfs =
> EOF
#endif
$ . "$TESTDIR/narrow-library.sh"
create full repo
$ hg init master
$ cd master
$ cat >> .hg/hgrc <<EOF
> [narrow]
> serveellipses=True
> EOF
$ mkdir inside
$ echo 1 > inside/f
$ mkdir inside2
$ echo 1 > inside2/f
$ mkdir outside
$ echo 1 > outside/f
$ hg ci -Aqm 'initial'
$ echo 2 > inside/f
$ hg ci -qm 'inside 2'
$ echo 2 > inside2/f
$ hg ci -qm 'inside2 2'
$ echo 2 > outside/f
$ hg ci -qm 'outside 2'
$ cd ..
$ hg clone --narrow ssh://user@dummy/master narrow --include inside
requesting all changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 2 changes to 1 files
new changesets *:* (glob)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone --narrow ssh://user@dummy/master narrow2 --include inside --include inside2
requesting all changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 2 files
new changesets *:* (glob)
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Can push to wider repo if change does not affect paths in wider repo that are
not also in narrower repo
$ cd narrow
$ echo 3 > inside/f
$ hg ci -m 'inside 3'
$ hg push ssh://user@dummy/narrow2
pushing to ssh://user@dummy/narrow2
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
Can push to narrower repo if change affects only paths within remote's
narrow spec
$ cd ../narrow2
$ cat >> .hg/hgrc <<EOF
> [narrow]
> serveellipses=True
> EOF
$ hg co -r 'desc("inside 3")'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo 4 > inside/f
$ hg ci -m 'inside 4'
$ hg push ssh://user@dummy/narrow
pushing to ssh://user@dummy/narrow
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
Can push to narrow repo if change affects only paths outside remote's
narrow spec
$ echo 3 > inside2/f
$ hg ci -m 'inside2 3'
TODO: this should be successful
$ hg push ssh://user@dummy/narrow
pushing to ssh://user@dummy/narrow
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: transaction abort!
remote: rollback completed
remote: abort: data/inside2/f.i@4a1aa07735e6: unknown parent! (reporevlogstore !)
remote: abort: data/inside2/f/index@4a1aa07735e6: no node! (reposimplestore !)
abort: stream ended unexpectedly (got 0 bytes, expected 4)
[255]
Can pull from wider repo if change affects only paths outside remote's
narrow spec
$ echo 4 > inside2/f
$ hg ci -m 'inside2 4'
$ hg log -G -T '{rev} {node|short} {files}\n'
@ 7 d78a96df731d inside2/f
|
o 6 8c26f5218962 inside2/f
|
o 5 ba3480e2f9de inside/f
|
o 4 4e5edd526618 inside/f
|
o 3 81e7e07b7ab0 outside/f
|
o 2 f3993b8c0c2b inside2/f
|
o 1 8cd66ca966b4 inside/f
|
o 0 c8057d6f53ab inside/f inside2/f outside/f
$ cd ../narrow
$ hg log -G -T '{rev} {node|short} {files}\n'
o 4 ba3480e2f9de inside/f
|
@ 3 4e5edd526618 inside/f
|
o 2 81e7e07b7ab0 outside/f
|
o 1 8cd66ca966b4 inside/f
|
o 0 c8057d6f53ab inside/f inside2/f outside/f
$ hg pull ssh://user@dummy/narrow2
pulling from ssh://user@dummy/narrow2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files
new changesets d78a96df731d
(run 'hg update' to get a working copy)
Check that the resulting history is valid in the full repo
$ cd ../narrow2
$ hg push ssh://user@dummy/master
pushing to ssh://user@dummy/master
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 4 changesets with 4 changes to 2 files
$ cd ../master
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 8 changesets with 10 changes to 3 files
Can not push to wider repo if change affects paths in wider repo that are
not also in narrower repo
$ cd ../master
$ hg co -r 'desc("inside2 4")'
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo 5 > inside2/f
$ hg ci -m 'inside2 5'
$ hg log -G -T '{rev} {node|short} {files}\n'
@ 8 5970befb64ba inside2/f
|
o 7 d78a96df731d inside2/f
|
o 6 8c26f5218962 inside2/f
|
o 5 ba3480e2f9de inside/f
|
o 4 4e5edd526618 inside/f
|
o 3 81e7e07b7ab0 outside/f
|
o 2 f3993b8c0c2b inside2/f
|
o 1 8cd66ca966b4 inside/f
|
o 0 c8057d6f53ab inside/f inside2/f outside/f
$ cd ../narrow
$ hg pull
pulling from ssh://user@dummy/master
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files
new changesets * (glob)
(run 'hg update' to get a working copy)
TODO: this should tell the user that their narrow clone does not have the
necessary content to be able to push to the target
TODO: lfs shouldn't abort like this
$ hg push ssh://user@dummy/narrow2 || true
pushing to ssh://user@dummy/narrow2
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 0 changes to 0 files
remote: error: pretxnchangegroup.lfs hook raised an exception: data/inside2/f.i@f59b4e021835: no match found (lfs-on !)
remote: transaction abort! (lfs-on !)
remote: rollback completed (lfs-on !)
remote: abort: data/inside2/f.i@f59b4e021835: no match found! (lfs-on !)
abort: stream ended unexpectedly (got 0 bytes, expected 4) (lfs-on !)