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
#require p4
$ echo "[extensions]" >> $HGRCPATH
$ echo "convert = " >> $HGRCPATH
create p4 depot
$ P4ROOT=`pwd`/depot; export P4ROOT
$ P4AUDIT=$P4ROOT/audit; export P4AUDIT
$ P4JOURNAL=$P4ROOT/journal; export P4JOURNAL
$ P4LOG=$P4ROOT/log; export P4LOG
$ P4PORT=localhost:$HGPORT; export P4PORT
$ P4DEBUG=1; export P4DEBUG
start the p4 server
$ [ ! -d $P4ROOT ] && mkdir $P4ROOT
$ p4d -f -J off >$P4ROOT/stdout 2>$P4ROOT/stderr &
$ echo $! >> $DAEMON_PIDS
$ trap "echo stopping the p4 server ; p4 admin stop" EXIT
$ # wait for the server to initialize
$ while ! p4 ; do
> sleep 1
> done >/dev/null 2>/dev/null
create a client spec
$ P4CLIENT=hg-p4-import; export P4CLIENT
$ DEPOTPATH=//depot/test-mercurial-import/...
$ p4 client -o | sed '/^View:/,$ d' >p4client
$ echo View: >>p4client
$ echo " $DEPOTPATH //$P4CLIENT/..." >>p4client
$ p4 client -i <p4client
Client hg-p4-import saved.
populate the depot
$ echo a > a
$ mkdir b
$ echo c > b/c
$ p4 add a b/c
//depot/test-mercurial-import/a#1 - opened for add
//depot/test-mercurial-import/b/c#1 - opened for add
$ p4 submit -d initial
Submitting change 1.
Locking 2 files ...
add //depot/test-mercurial-import/a#1
add //depot/test-mercurial-import/b/c#1
Change 1 submitted.
change some files
$ p4 edit a
//depot/test-mercurial-import/a#1 - opened for edit
$ echo aa >> a
$ p4 submit -d "change a"
Submitting change 2.
Locking 1 files ...
edit //depot/test-mercurial-import/a#2
Change 2 submitted.
$ p4 edit b/c
//depot/test-mercurial-import/b/c#1 - opened for edit
$ echo cc >> b/c
$ p4 submit -d "change b/c"
Submitting change 3.
Locking 1 files ...
edit //depot/test-mercurial-import/b/c#2
Change 3 submitted.
convert
$ hg convert -s p4 $DEPOTPATH dst
initializing destination dst repository
scanning source...
reading p4 views
collecting p4 changelists
1 initial
2 change a
3 change b/c
sorting...
converting...
2 initial
1 change a
0 change b/c
$ hg -R dst log --template 'rev={rev} desc="{desc}" tags="{tags}" files="{files}"\n'
rev=2 desc="change b/c" tags="tip" files="b/c"
rev=1 desc="change a" tags="" files="a"
rev=0 desc="initial" tags="" files="a b/c"
change some files
$ p4 edit a b/c
//depot/test-mercurial-import/a#2 - opened for edit
//depot/test-mercurial-import/b/c#2 - opened for edit
$ echo aaa >> a
$ echo ccc >> b/c
$ p4 submit -d "change a b/c"
Submitting change 4.
Locking 2 files ...
edit //depot/test-mercurial-import/a#3
edit //depot/test-mercurial-import/b/c#3
Change 4 submitted.
convert again
$ hg convert -s p4 $DEPOTPATH dst
scanning source...
reading p4 views
collecting p4 changelists
4 change a b/c
sorting...
converting...
0 change a b/c
$ hg -R dst log --template 'rev={rev} desc="{desc}" tags="{tags}" files="{files}"\n'
rev=3 desc="change a b/c" tags="tip" files="a b/c"
rev=2 desc="change b/c" tags="" files="b/c"
rev=1 desc="change a" tags="" files="a"
rev=0 desc="initial" tags="" files="a b/c"
interesting names
$ echo dddd > "d d"
$ mkdir " e"
$ echo fff >" e/ f"
$ p4 add "d d" " e/ f"
//depot/test-mercurial-import/d d#1 - opened for add
//depot/test-mercurial-import/ e/ f#1 - opened for add
$ p4 submit -d "add d e f"
Submitting change 5.
Locking 2 files ...
add //depot/test-mercurial-import/ e/ f#1
add //depot/test-mercurial-import/d d#1
Change 5 submitted.
convert again
$ hg convert -s p4 $DEPOTPATH dst
scanning source...
reading p4 views
collecting p4 changelists
5 add d e f
sorting...
converting...
0 add d e f
$ hg -R dst log --template 'rev={rev} desc="{desc}" tags="{tags}" files="{files}"\n'
rev=4 desc="add d e f" tags="tip" files=" e/ f d d"
rev=3 desc="change a b/c" tags="" files="a b/c"
rev=2 desc="change b/c" tags="" files="b/c"
rev=1 desc="change a" tags="" files="a"
rev=0 desc="initial" tags="" files="a b/c"
empty commit message
$ p4 edit a
//depot/test-mercurial-import/a#3 - opened for edit
$ echo aaaaa >> a
$ p4 submit -d ""
Submitting change 6.
Locking 1 files ...
edit //depot/test-mercurial-import/a#4
Change 6 submitted.
$ hg convert -s p4 $DEPOTPATH dst
scanning source...
reading p4 views
collecting p4 changelists
6 **empty changelist description**
sorting...
converting...
0
exit trap:
stopping the p4 server