( )⚙ D286 undo: no argument redo

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Differential D286

undo: no argument redo
ClosedPublic

Authored by felixmerk on Aug 8 2017, 6:15 PM.
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quark, stash

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quark
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rFBHGX916de186acdc: undo: no argument redo
Summary

Changes redo to straight up undo the previous undo. This is a bit trickier than
it may seem. The previous redo capabilities are still covered in hg undo as
--index accepts negative numbers allowing you to step both forward and
backwards one step at a time. The new redo reads the linear undo log to find
out where to undo to while updating the undo/redo index allowing you to continue
from where you left off.

Diff Detail

Repository
rFBHGX Facebook Mercurial Extensions
Lint
Lint Skipped
Unit
Unit Tests Skipped

Event Timeline

felixmerk created this revision.Aug 8 2017, 6:15 PM
Herald added a reviewer: Restricted Project. · View Herald TranscriptAug 8 2017, 6:15 PM
stash added a subscriber: stash.Aug 9 2017, 11:10 AM

Sorry, only nits so far. Will look more closely later

hgext3rd/undo.py
584

Second and reverseindex != -1 is not necessary

671–689

() are not necessary

696

Same here

felixmerk added inline comments.Aug 9 2017, 1:50 PM
hgext3rd/undo.py
584

I want to allow hg undo --index -1 --branch #. Not only is this somewhat useful for the user, it allows for interactive branch undoes if I ever want to add that. (--index -1 is stepping one repo state forward)

felixmerk updated this revision to Diff 710.Aug 9 2017, 2:10 PM
quark requested changes to this revision.EditedAug 9 2017, 6:46 PM
quark added a subscriber: quark.

The test looks solid. Great!

Parsing the undo command line flags manually could easily miss corner cases. I'd suggest use what Mercurial actually uses:

opts = {}
mercurial.fancyopts.fancyopts(['--ind=4', '-fa'], cmdtable['undo'][1], opts)
opts # {'absolute': True, 'branch': '', 'force': True, 'index': 4, 'keep': False}
hgext3rd/undo.py
676–685

--index=4 is also a valid way to provide the flag.

691–694

Could be simplify to if i in ('-a', '--absolute'):

This revision now requires changes to proceed.Aug 9 2017, 6:46 PM
felixmerk edited edge metadata.Aug 10 2017, 1:55 PM
felixmerk updated this revision to Diff 741.
felixmerk updated this revision to Diff 814.Aug 11 2017, 5:39 PM
quark accepted this revision.Aug 11 2017, 8:57 PM
This revision is now accepted and ready to land.Aug 11 2017, 8:57 PM
Closed by commit rFBHGX916de186acdc: undo: no argument redo (authored by felixmerk). · Explain WhyAug 14 2017, 5:19 PM
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathPackages
Mhgext3rd/undo.py (62 lines)
Mtests/test-undo.t (169 lines)

Diff 741

hgext3rd/undo.py

from mercurial.i18n import _ from mercurial.i18n import _
from mercurial import ( from mercurial import (
cmdutil, cmdutil,
dispatch, dispatch,
error, error,
extensions, extensions,
fancyopts,
hg, hg,
localrepo, localrepo,
lock as lockmod, lock as lockmod,
obsolete, obsolete,
obsutil, obsutil,
phases, phases,
registrar, registrar,
revlog, revlog,
relativeundo = not opts.get("absolute") relativeundo = not opts.get("absolute")
keep = opts.get("keep") keep = opts.get("keep")
branch = opts.get("branch") branch = opts.get("branch")
preview = opts.get("preview") preview = opts.get("preview")
interactive = opts.get("interactive") interactive = opts.get("interactive")
if interactive: if interactive:
preview = True preview = True
if branch and reverseindex != 1: repo = repo.unfiltered()
if branch and reverseindex != 1 and reverseindex != -1:
stashUnsubmitted
Not Done

Second and reverseindex != -1 is not necessary

stash: Second `and reverseindex != -1` is not necessary
felixmerkAuthorUnsubmitted
Not Done

I want to allow hg undo --index -1 --branch #. Not only is this somewhat useful for the user, it allows for interactive branch undoes if I ever want to add that. (--index -1 is stepping one repo state forward)

felixmerk: I want to allow `hg undo --index -1 --branch #`. Not only is this somewhat useful for the user…
raise error.Abort(_("--branch with --index not supported")) raise error.Abort(_("--branch with --index not supported"))
if relativeundo: if relativeundo:
reverseindex = _computerelative(repo, reverseindex, reverseindex = _computerelative(repo, reverseindex,
absolute = not relativeundo, absolute = not relativeundo,
branch = branch) branch = branch)
if branch and preview: if branch and preview:
raise error.Abort(_("--branch with --preview not supported")) raise error.Abort(_("--branch with --preview not supported"))
return return
elif preview: elif preview:
_preview(ui, repo, reverseindex) _preview(ui, repo, reverseindex)
return return
with repo.wlock(), repo.lock(), repo.transaction("undo"): with repo.wlock(), repo.lock(), repo.transaction("undo"):
cmdutil.checkunfinished(repo) cmdutil.checkunfinished(repo)
cmdutil.bailifchanged(repo) cmdutil.bailifchanged(repo)
repo = repo.unfiltered()
if not (opts.get("force") or _gapcheck(repo, reverseindex)): if not (opts.get("force") or _gapcheck(repo, reverseindex)):
raise error.Abort(_("attempted risky undo across" raise error.Abort(_("attempted risky undo across"
" missing history")) " missing history"))
_undoto(ui, repo, reverseindex, keep=keep, branch=branch) _undoto(ui, repo, reverseindex, keep=keep, branch=branch)
# store undo data # store undo data
# for absolute undos, think of this as a reset # for absolute undos, think of this as a reset
# for relative undos, think of this as an update # for relative undos, think of this as an update
_logundoredoindex(repo, reverseindex, branch) _logundoredoindex(repo, reverseindex, branch)
@command('redo', [ @command('redo', [
('b', 'branch', "", _("single branch undo, accepts commit hash "
"(ADVANCED)")),
('n', 'index', 1, _("how many commands to redo")),
('p', 'preview', False, _("see smartlog like preview of future redo " ('p', 'preview', False, _("see smartlog like preview of future redo "
"state")), "state")),
]) ])
def redo(ui, repo, *args, **opts): def redo(ui, repo, *args, **opts):
""" perform a redo """ perform a redo
Performs a redo. Specifically, redo moves forward a repo state relative to Rolls back the previous undo.
the previous undo or redo command. If you run hg undo -n 10, you can redo
each of the 10 repo states one by one all the way back to the state from
which you ran undo. You can use --index to redo across more states at once,
and you can use any number of undos/redos up to the current state or back to
when the undo extension was first active.
""" """
branch = opts.get("branch") shiftedindex = _computerelative(repo, 0)
reverseindex = -1 * abs(opts.get("index"))
preview = opts.get("preview") preview = opts.get("preview")
if branch and reverseindex != -1: reverseindex = 0
raise error.Abort(_("--branch with --index not supported")) redocount = 0
done = False
while not done:
# we step back the linear undo log
# redoes cancel out undoes, if we have one more undo, we should undo
# there, otherwise we continue looking
# we are careful to not redo past absolute undoes (bc we loose undoredo
# log info)
# if we run into something that isn't undo or redo, we Abort (including
# gaps in the log)
# we extract the --index arguments out of undoes to make sure we update
# the undoredo index correctly
nodedict = _readindex(repo, reverseindex)
commandstr = _readnode(repo, 'command.i', nodedict['command'])
commandlist = commandstr.split("\0")
reverseindex = _computerelative(repo, reverseindex) if commandlist[0] == "undo":
undoopts = {}
fancyopts.fancyopts(commandlist[1:], cmdtable['undo'][1], undoopts)
if redocount == 0:
# want to go to state before the undo (not after)
toshift = undoopts['index']
shiftedindex -= toshift
reverseindex += 1
done = True
else:
if undoopts['absolute']:
raise error.Abort(_("can't redo past absolute undo"))
reverseindex += 1
redocount -= 1
elif commandlist[0] == "redo":
quarkUnsubmitted
Not Done

--index=4 is also a valid way to provide the flag.

quark: `--index=4` is also a valid way to provide the flag.
redocount += 1
reverseindex += 1
else:
raise error.Abort(_("nothing to redo"))
stashUnsubmitted
Not Done

() are not necessary

stash: `()` are not necessary
if preview: if preview:
_preview(ui, repo, reverseindex) _preview(ui, repo, reverseindex)
return return
quarkUnsubmitted
Not Done

Could be simplify to if i in ('-a', '--absolute'):

quark: Could be simplify to `if i in ('-a', '--absolute'):`
with repo.wlock(), repo.lock(), repo.transaction("redo"): with repo.wlock(), repo.lock(), repo.transaction("redo"):
cmdutil.checkunfinished(repo) cmdutil.checkunfinished(repo)
stashUnsubmitted
Not Done

Same here

stash: Same here
cmdutil.bailifchanged(repo) cmdutil.bailifchanged(repo)
repo = repo.unfiltered() repo = repo.unfiltered()
_undoto(ui, repo, reverseindex, branch=branch) _undoto(ui, repo, reverseindex)
_logundoredoindex(repo, reverseindex, branch=branch) # update undredo by removing what the given undo added
_logundoredoindex(repo, shiftedindex)
def _undoto(ui, repo, reverseindex, keep=False, branch=None): def _undoto(ui, repo, reverseindex, keep=False, branch=None):
# undo to specific reverseindex # undo to specific reverseindex
# requires inhibit extension # requires inhibit extension
# branch is a changectx hash (potentially short form) # branch is a changectx hash (potentially short form)
# which identifies its branch via localbranch revset # which identifies its branch via localbranch revset
if repo != repo.unfiltered(): if repo != repo.unfiltered():
raise error.ProgrammingError(_("_undoto expects unfilterd repo")) raise error.ProgrammingError(_("_undoto expects unfilterd repo"))

tests/test-undo.t

$ hg undo $ hg undo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(leaving bookmark test) (leaving bookmark test)
$ hg bookmarks $ hg bookmarks
feature1 2:49cdb4091aca feature1 2:49cdb4091aca
feature2 7:296fda51a303 feature2 7:296fda51a303
master 9:1dafc0b43612 master 9:1dafc0b43612
hg redo test hg undo with negative index
$ hg redo $ hg undo -n -1
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -G -T compact -l1 $ hg log -G -T compact -l1
@ 9[tip][master,test] 1dafc0b43612 1970-01-01 00:00 +0000 test @ 9[tip][master,test] 1dafc0b43612 1970-01-01 00:00 +0000 test
| cmiss | cmiss
~ ~
$ hg undo $ hg undo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -G -T compact -l1 $ hg log -G -T compact -l1
@ 9[tip][master] 1dafc0b43612 1970-01-01 00:00 +0000 test @ 9[tip][master] 1dafc0b43612 1970-01-01 00:00 +0000 test
| cmiss | cmiss
~ ~
$ hg undo -n 5 $ hg undo -n 5
0 files updated, 0 files merged, 1 files removed, 0 files unresolved 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg redo -n 5 $ hg undo -n -5
1 files updated, 0 files merged, 0 files removed, 0 files unresolved 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -G -T compact -l1 $ hg log -G -T compact -l1
@ 9[tip][master] 1dafc0b43612 1970-01-01 00:00 +0000 test @ 9[tip][master] 1dafc0b43612 1970-01-01 00:00 +0000 test
| cmiss | cmiss
~ ~
$ hg redo -n 100 $ hg undo -n -100
abort: index out of bounds abort: index out of bounds
[255] [255]
hg undo --absolute tests hg undo --absolute tests
$ hg undo -a $ hg undo -a
0 files updated, 0 files merged, 1 files removed, 0 files unresolved 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg redo $ hg undo -n -1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg undo -a $ hg undo -a
0 files updated, 0 files merged, 1 files removed, 0 files unresolved 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg redo $ hg undo -n -1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg undo -n 5 $ hg undo -n 5
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -G -T compact -l1 $ hg log -G -T compact -l1
@ 9[tip][master,test] 1dafc0b43612 1970-01-01 00:00 +0000 test @ 9[tip][master,test] 1dafc0b43612 1970-01-01 00:00 +0000 test
| cmiss | cmiss
~ ~
$ hg undo -a $ hg undo -a
$ hg debugobsolete | tail -5 $ hg debugobsolete | tail -5
db3723da827c373768d500ab4e3a9c59a78314a6 0 {1dafc0b436123cab96f82a8e9e8d1d42c0301aaa} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'} db3723da827c373768d500ab4e3a9c59a78314a6 0 {1dafc0b436123cab96f82a8e9e8d1d42c0301aaa} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
c9476255bc2a68672c844021397838ff4eeefcda 1dafc0b436123cab96f82a8e9e8d1d42c0301aaa 0 (Thu Jan 01 00:00:04 1970 +0000) {'user': 'test'} c9476255bc2a68672c844021397838ff4eeefcda 1dafc0b436123cab96f82a8e9e8d1d42c0301aaa 0 (Thu Jan 01 00:00:04 1970 +0000) {'user': 'test'}
1dafc0b436123cab96f82a8e9e8d1d42c0301aaa c9476255bc2a68672c844021397838ff4eeefcda 0 (Thu Jan 01 00:00:05 1970 +0000) {'user': 'test'} 1dafc0b436123cab96f82a8e9e8d1d42c0301aaa c9476255bc2a68672c844021397838ff4eeefcda 0 (Thu Jan 01 00:00:05 1970 +0000) {'user': 'test'}
c9476255bc2a68672c844021397838ff4eeefcda 1dafc0b436123cab96f82a8e9e8d1d42c0301aaa 0 (Thu Jan 01 00:00:06 1970 +0000) {'operation': 'undo', 'user': 'test'} c9476255bc2a68672c844021397838ff4eeefcda 1dafc0b436123cab96f82a8e9e8d1d42c0301aaa 0 (Thu Jan 01 00:00:06 1970 +0000) {'operation': 'undo', 'user': 'test'}
f86734247df6db66a810e549cc938a72cd5c6d1a d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea 75f63379f12bf02d40fe7444587ad67be9ae81b8 0 (Thu Jan 01 00:00:00 1970 +0000) {'operation': 'split', 'user': 'test'} f86734247df6db66a810e549cc938a72cd5c6d1a d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea 75f63379f12bf02d40fe7444587ad67be9ae81b8 0 (Thu Jan 01 00:00:00 1970 +0000) {'operation': 'split', 'user': 'test'}
$ hg undo $ hg undo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg redo $ hg undo -n -1
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg debugobsolete | tail -5 $ hg debugobsolete | tail -5
d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea f86734247df6db66a810e549cc938a72cd5c6d1a 0 (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'undo', 'user': 'test'} d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea f86734247df6db66a810e549cc938a72cd5c6d1a 0 (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'undo', 'user': 'test'}
75f63379f12bf02d40fe7444587ad67be9ae81b8 0 {d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea} (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'undo', 'user': 'test'} 75f63379f12bf02d40fe7444587ad67be9ae81b8 0 {d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea} (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'undo', 'user': 'test'}
f86734247df6db66a810e549cc938a72cd5c6d1a 0 {1dafc0b436123cab96f82a8e9e8d1d42c0301aaa} (Thu Jan 01 00:00:02 1970 +0000) {'operation': 'undo', 'user': 'test'} f86734247df6db66a810e549cc938a72cd5c6d1a 0 {1dafc0b436123cab96f82a8e9e8d1d42c0301aaa} (Thu Jan 01 00:00:02 1970 +0000) {'operation': 'undo', 'user': 'test'}
d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea 0 (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'revive', 'user': 'test'} d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea 0 (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'revive', 'user': 'test'}
75f63379f12bf02d40fe7444587ad67be9ae81b8 75f63379f12bf02d40fe7444587ad67be9ae81b8 0 (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'revive', 'user': 'test'} 75f63379f12bf02d40fe7444587ad67be9ae81b8 75f63379f12bf02d40fe7444587ad67be9ae81b8 0 (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'revive', 'user': 'test'}
$ cat >> $HGRCPATH <<EOF $ cat >> $HGRCPATH <<EOF
date: Thu Jan 01 00:00:00 1970 +0000 date: Thu Jan 01 00:00:00 1970 +0000
summary: newfiles summary: newfiles
$ cat >> $HGRCPATH <<EOF $ cat >> $HGRCPATH <<EOF
> [extensions] > [extensions]
> rebase = ! > rebase = !
> EOF > EOF
Check local redo works Check local undo works forward
Simple test should be sufficient, as per usual, redo is an undo with some index $ hg undo -n -1 -b 3532
logic
$ hg redo -b 3532
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -l 2 $ hg log -l 2
changeset: 21:35324a911c0d changeset: 21:35324a911c0d
bookmark: newbook bookmark: newbook
tag: tip tag: tip
parent: 18:75f63379f12b parent: 18:75f63379f12b
user: test user: test
date: Thu Jan 01 00:00:00 1970 +0000 date: Thu Jan 01 00:00:00 1970 +0000
summary: newbranch summary: newbranch
changeset: 18:75f63379f12b changeset: 18:75f63379f12b
user: test user: test
date: Thu Jan 01 00:00:00 1970 +0000 date: Thu Jan 01 00:00:00 1970 +0000
summary: newfiles summary: newfiles
$ touch a9 && hg add a9 && hg ci -m a9 $ touch a9 && hg add a9 && hg ci -m a9
created new head created new head
$ hg log -r . -T {node} $ hg log -r . -T {node}
3ee6a6880888df9e48cdc568b5e835bd3087f8cb (no-eol) 3ee6a6880888df9e48cdc568b5e835bd3087f8cb (no-eol)
$ hg undo -b 3532 $ hg undo -b 3532
0 files updated, 0 files merged, 1 files removed, 0 files unresolved 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg undo -b 3532 $ hg undo -b 3532
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg redo -b 75f6 $ hg undo -n -1 -b 75f6
0 files updated, 0 files merged, 0 files removed, 0 files unresolved 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg redo -b 75f6 $ hg undo -n -1 -b 75f6
1 files updated, 0 files merged, 0 files removed, 0 files unresolved 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -l 2 $ hg log -l 2
changeset: 22:3ee6a6880888 changeset: 22:3ee6a6880888
tag: tip tag: tip
parent: 18:75f63379f12b parent: 18:75f63379f12b
user: test user: test
date: Thu Jan 01 00:00:00 1970 +0000 date: Thu Jan 01 00:00:00 1970 +0000
summary: a9 summary: a9
| |
~ ~
o o
| |
~ ~
o o
| |
~ ~
hg redo tests
$ hg log -G -T compact
@ 23[tip] a0b72b3048d6 1970-01-01 00:00 +0000 test
| prev1
|
o 22:18 3ee6a6880888 1970-01-01 00:00 +0000 test
| a9
|
| o 21[newbook]:18 35324a911c0d 1970-01-01 00:00 +0000 test
|/ newbranch
|
o 18 75f63379f12b 1970-01-01 00:00 +0000 test
| newfiles
|
o 17:9 d0fdb9510dbf 1970-01-01 00:00 +0000 test
| newfiles
|
o 9[master] 1dafc0b43612 1970-01-01 00:00 +0000 test
| cmiss
|
o 8:4 0a3dd3e15e65 1970-01-01 00:00 +0000 test
| words
|
| o 7[feature2]:4 296fda51a303 1970-01-01 00:00 +0000 test
|/ d
|
o 4 38d85b506754 1970-01-01 00:00 +0000 test
| c2
|
o 3:1 ec7553f7b382 1970-01-01 00:00 +0000 test
| c1
|
| o 2[feature1] 49cdb4091aca 1970-01-01 00:00 +0000 test
|/ b
|
o 1 b68836a6e2ca 1970-01-01 00:00 +0000 test
| a2
|
o 0 df4fd610a3d6 1970-01-01 00:00 +0000 test
a1
$ hg log -r . -T {node}
a0b72b3048d6d07b35b1d79c8e5c46b159d21cc9 (no-eol)
$ hg undo -n 2
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ hg redo
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -r . -T {node}
a0b72b3048d6d07b35b1d79c8e5c46b159d21cc9 (no-eol)
$ hg undo
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg undo
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg log -r . -T {node}
75f63379f12bf02d40fe7444587ad67be9ae81b8 (no-eol)
$ hg undo -n 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg redo
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg log -r . -T {node}
75f63379f12bf02d40fe7444587ad67be9ae81b8 (no-eol)
$ hg undo -n 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg redo
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg redo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg redo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -r . -T {node}
a0b72b3048d6d07b35b1d79c8e5c46b159d21cc9 (no-eol)
$ hg undo -fn 3
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg undo --force --index -1
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg debugundohistory -l
0: undo --force --index -1
1: undo -fn 3
2: redo
3: redo
4: redo
$ hg redo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg undo
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg log -r . -T {node}
75f63379f12bf02d40fe7444587ad67be9ae81b8 (no-eol)
$ hg redo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg redo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -r . -T {node}
a0b72b3048d6d07b35b1d79c8e5c46b159d21cc9 (no-eol)
$ hg undo
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg undo -an1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg redo
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg redo
abort: can't redo past absolute undo
[255]
$ hg undo -n -1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -G -T compact
@ 23[tip] a0b72b3048d6 1970-01-01 00:00 +0000 test
| prev1
|
o 22:18 3ee6a6880888 1970-01-01 00:00 +0000 test
| a9
|
| o 21[newbook]:18 35324a911c0d 1970-01-01 00:00 +0000 test
|/ newbranch
|
o 18 75f63379f12b 1970-01-01 00:00 +0000 test
| newfiles
|
o 17:9 d0fdb9510dbf 1970-01-01 00:00 +0000 test
| newfiles
|
o 9[master] 1dafc0b43612 1970-01-01 00:00 +0000 test
| cmiss
|
o 8:4 0a3dd3e15e65 1970-01-01 00:00 +0000 test
| words
|
| o 7[feature2]:4 296fda51a303 1970-01-01 00:00 +0000 test
|/ d
|
o 4 38d85b506754 1970-01-01 00:00 +0000 test
| c2
|
o 3:1 ec7553f7b382 1970-01-01 00:00 +0000 test
| c1
|
| o 2[feature1] 49cdb4091aca 1970-01-01 00:00 +0000 test
|/ b
|
o 1 b68836a6e2ca 1970-01-01 00:00 +0000 test
| a2
|
o 0 df4fd610a3d6 1970-01-01 00:00 +0000 test
a1