D6645: continue: added logic for hg continue
taapas1128 (Taapas Agrawal)
phabricator at mercurial-scm.org
Mon Jul 15 20:42:29 UTC 2019
taapas1128 created this revision.
Herald added a subscriber: mercurial-devel.
Herald added a reviewer: hg-reviewers.
REVISION SUMMARY
This is part of GSoC19 project `Implement abort and
continue commands`. This patch is part of the continue plan.
This adds the basic logic for hg continue. This command
aborts an multistep operation like graft, histedit, rebase,
transplant 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 continue by adding a method
to register the abort logic as a function (here continuefunc).
Once the unfinished operation is determined the registered
logic is used to resume the command in case it is interrupted.
The benefit of this kind of framework is that any new extension
developed can support hg continue by registering the command
and logic under statedetection API.
hg continue currently supports --dry-run/-n flag only.
It is used to dry run hg abort
REPOSITORY
rHG Mercurial
REVISION DETAIL
https://phab.mercurial-scm.org/D6645
AFFECTED FILES
mercurial/commands.py
mercurial/state.py
CHANGE DETAILS
diff --git a/mercurial/state.py b/mercurial/state.py
--- a/mercurial/state.py
+++ b/mercurial/state.py
@@ -99,7 +99,7 @@
def __init__(self, opname, fname, clearable, allowcommit, reportonly,
continueflag, stopflag, cmdmsg, cmdhint, statushint,
- abortfunc):
+ abortfunc, continuefunc):
self._opname = opname
self._fname = fname
self._clearable = clearable
@@ -111,6 +111,7 @@
self._cmdhint = cmdhint
self._statushint = statushint
self.abortfunc = abortfunc
+ self.continuefunc = continuefunc
def statusmsg(self):
"""returns the hint message corresponding to the command for
@@ -159,7 +160,8 @@
def addunfinished(opname, fname, clearable=False, allowcommit=False,
reportonly=False, continueflag=False, stopflag=False,
- cmdmsg="", cmdhint="", statushint="", abortfunc=None):
+ cmdmsg="", cmdhint="", statushint="", abortfunc=None,
+ continuefunc=None):
"""this registers a new command or operation to unfinishedstates
opname is the name the command or operation
fname is the file name in which data should be stored in .hg directory.
@@ -184,10 +186,12 @@
message of the format ('To continue: hg cmdname --continue'
'To abort: hg cmdname --abort') is not desired
abortfunc stores the function required to abort an unfinished state.
+ continuefunc stores the function required to finish an interrupted
+ operation.
"""
statecheckobj = _statecheck(opname, fname, clearable, allowcommit,
reportonly, continueflag, stopflag, cmdmsg,
- cmdhint, statushint, abortfunc)
+ cmdhint, statushint, abortfunc, continuefunc)
if opname == 'merge':
_unfinishedstates.append(statecheckobj)
else:
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -1893,6 +1893,32 @@
return 0
return 1
+ at command('continue',
+ dryrunopts, helpcategory=command.CATEGORY_CHANGE_MANAGEMENT,
+ helpbasic=True)
+def continuecmd(ui, repo, **opts):
+ """finishes an interrupted operation (EXPERIMENTAL)
+
+ Finishes a multistep operation like graft, histedit, rebase, merge,
+ and unshelve if they are in an interrupted state.
+
+ use --dry-run/-n to dry run the command.
+ A new operation can be added to this by registering the operation and
+ continue logic in the unfinishedstates list under statemod.
+ """
+ dryrun = opts.get(r'dry_run')
+ contstate = cmdutil.getunfinishedstate(repo)
+ if not contstate:
+ raise error.Abort(_('no operation in progress'))
+ if not contstate.continuefunc:
+ raise error.Abort((_("%s in progress but does not support "
+ "'hg continue'") % (contstate._opname)),
+ hint=contstate.continuemsg())
+ if dryrun:
+ ui.status(_('%s in progress, will be resumed\n') % (contstate._opname))
+ return
+ return contstate.continuefunc(ui, repo)
+
@command('copy|cp',
[('A', 'after', None, _('record a copy that has already occurred')),
('f', 'force', None, _('forcibly copy over an existing managed file')),
To: taapas1128, #hg-reviewers
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