Require a destination $ cat >> $HGRCPATH < [extensions] > rebase = > [commands] > rebase.requiredest = True > EOF $ hg init repo $ cd repo $ echo a >> a $ hg commit -qAm aa $ echo b >> b $ hg commit -qAm bb $ hg up ".^" 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo c >> c $ hg commit -qAm cc $ hg rebase abort: you must specify a destination (use: hg rebase -d REV) [255] $ hg rebase -d 1 rebasing 2:5db65b93a12b "cc" (tip) saved backup bundle to $TESTTMP/repo/.hg/strip-backup/5db65b93a12b-4fb789ec-rebase.hg $ hg rebase -d 0 -r . -q $ HGPLAIN=1 hg rebase rebasing 2:889b0bc6a730 "cc" (tip) saved backup bundle to $TESTTMP/repo/.hg/strip-backup/889b0bc6a730-41ec4f81-rebase.hg $ hg rebase -d 0 -r . -q $ hg --config commands.rebase.requiredest=False rebase rebasing 2:279de9495438 "cc" (tip) saved backup bundle to $TESTTMP/repo/.hg/strip-backup/279de9495438-ab0a5128-rebase.hg Requiring dest should not break continue or other rebase options $ hg up 1 -q $ echo d >> c $ hg commit -qAm dc $ hg log -G -T '{rev} {desc}' @ 3 dc | | o 2 cc |/ o 1 bb | o 0 aa $ hg rebase -d 2 rebasing 3:0537f6b50def "dc" (tip) merging c warning: conflicts while merging c! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ echo d > c $ hg resolve --mark --all (no more unresolved files) continue: hg rebase --continue $ hg rebase --continue rebasing 3:0537f6b50def "dc" (tip) saved backup bundle to $TESTTMP/repo/.hg/strip-backup/0537f6b50def-be4c7386-rebase.hg $ cd .. Check rebase.requiredest interaction with pull --rebase $ hg clone repo clone updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd repo $ echo e > e $ hg commit -qAm ee $ cd .. $ cd clone $ echo f > f $ hg commit -qAm ff $ hg pull --rebase abort: rebase destination required by configuration (use hg pull followed by hg rebase -d DEST) [255] Setup rebase with multiple destinations $ cd $TESTTMP $ cat >> $TESTTMP/maprevset.py < from __future__ import absolute_import > from mercurial import registrar, revset, revsetlang, smartset > revsetpredicate = registrar.revsetpredicate() > cache = {} > @revsetpredicate(b'map') > def map(repo, subset, x): > """(set, mapping)""" > setarg, maparg = revsetlang.getargs(x, 2, 2, b'') > rset = revset.getset(repo, smartset.fullreposet(repo), setarg) > mapstr = revsetlang.getstring(maparg, b'') > map = dict(a.split(b':') for a in mapstr.split(b',')) > rev = rset.first() > desc = repo[rev].description() > newdesc = map.get(desc) > if newdesc == b'null': > revs = [-1] > else: > query = revsetlang.formatspec(b'desc(%s)', newdesc) > revs = repo.revs(query) > return smartset.baseset(revs) > EOF $ cat >> $HGRCPATH < [ui] > allowemptycommit=1 > [extensions] > drawdag=$TESTDIR/drawdag.py > [phases] > publish=False > [alias] > tglog = log -G --template "{rev}: {node|short} {desc} {instabilities}" -r 'sort(all(), topo)' > [extensions] > maprevset=$TESTTMP/maprevset.py > [experimental] > evolution=true > EOF $ rebasewithdag() { > N=`"$PYTHON" -c "print($N+1)"` > hg init repo$N && cd repo$N > hg debugdrawdag > hg rebase "$@" > _rebasetmp > r=$? > grep -v 'saved backup bundle' _rebasetmp > [ $r -eq 0 ] && rm -f .hg/localtags && hg tglog > cd .. > return $r > } Destination resolves to an empty set: $ rebasewithdag -s B -d 'SRC - SRC' <<'EOS' > C > | > B > | > A > EOS nothing to rebase - empty destination [1] Multiple destinations and --collapse are not compatible: $ rebasewithdag -s C+E -d 'SRC^^' --collapse <<'EOS' > C F > | | > B E > | | > A D > EOS abort: --collapse does not work with multiple destinations [255] Multiple destinations cannot be used with --base: $ rebasewithdag -b B+E -d 'SRC^^' --collapse <<'EOS' > B E > | | > A D > EOS abort: unknown revision 'SRC'! [255] Rebase to null should work: $ rebasewithdag -r A+C+D -d 'null' <<'EOS' > C D > | | > A B > EOS already rebased 0:426bada5c675 "A" (A) already rebased 2:dc0947a82db8 "C" (C) rebasing 3:004dc1679908 "D" (D tip) o 4: d8d8601abd5e D o 2: dc0947a82db8 C | | o 1: fc2b737bb2e5 B | o 0: 426bada5c675 A Destination resolves to multiple changesets: $ rebasewithdag -s B -d 'ALLSRC+SRC' <<'EOS' > C > | > B > | > Z > EOS abort: rebase destination for f0a671a46792 is not unique [255] Destination is an ancestor of source: $ rebasewithdag -s B -d 'SRC' <<'EOS' > C > | > B > | > Z > EOS abort: source and destination form a cycle [255] Switch roots: $ rebasewithdag -s 'all() - roots(all())' -d 'roots(all()) - ::SRC' <<'EOS' > C F > | | > B E > | | > A D > EOS rebasing 2:112478962961 "B" (B) rebasing 4:26805aba1e60 "C" (C) rebasing 3:cd488e83d208 "E" (E) rebasing 5:0069ba24938a "F" (F tip) o 9: d150ff263fc8 F | o 8: 66f30a1a2eab E | | o 7: 93db94ffae0e C | | | o 6: d0071c3b0c88 B | | | o 1: 058c1e1fb10a D | o 0: 426bada5c675 A Different destinations for merge changesets with a same root: $ rebasewithdag -s B -d '((parents(SRC)-B-A)::) - (::ALLSRC)' <<'EOS' > C G > |\| > | F > | > B E > |\| > A D > EOS rebasing 3:a4256619d830 "B" (B) rebasing 6:8e139e245220 "C" (C tip) o 8: 51e2ce92e06a C |\ | o 7: 2ed0c8546285 B | |\ o | | 5: 8fdb2c1feb20 G | | | | | o 4: cd488e83d208 E | | | o | | 2: a6661b868de9 F / / | o 1: 058c1e1fb10a D | o 0: 426bada5c675 A Move to a previous parent: $ rebasewithdag -s E+F+G -d 'SRC^^' <<'EOS' > H > | > D G > |/ > C F > |/ > B E # E will be ignored, since E^^ is empty > |/ > A > EOS rebasing 4:33441538d4aa "F" (F) rebasing 6:cf43ad9da869 "G" (G) rebasing 7:eef94f3b5f03 "H" (H tip) o 10: b3d84c6666cf H | | o 5: f585351a92f8 D |/ o 3: 26805aba1e60 C | | o 9: f7c28a1a15e2 G |/ o 1: 112478962961 B | | o 8: 02aa697facf7 F |/ | o 2: 7fb047a69f22 E |/ o 0: 426bada5c675 A Source overlaps with destination: $ rebasewithdag -s 'B+C+D' -d 'map(SRC, "B:C,C:D")' <<'EOS' > B C D > \|/ > A > EOS rebasing 2:dc0947a82db8 "C" (C) rebasing 1:112478962961 "B" (B) o 5: 5fe9935d5222 B | o 4: 12d20731b9e0 C | o 3: b18e25de2cf5 D | o 0: 426bada5c675 A Detect cycles early: $ rebasewithdag -r 'all()-Z' -d 'map(SRC, "A:B,B:C,C:D,D:B")' <<'EOS' > A B C > \|/ > | D > |/ > Z > EOS abort: source and destination form a cycle [255] Detect source is ancestor of dest in runtime: $ rebasewithdag -r 'C+B' -d 'map(SRC, "C:B,B:D")' -q <<'EOS' > D > | > B C > \| > A > EOS abort: source is ancestor of destination [255] "Already rebased" fast path still works: $ rebasewithdag -r 'all()' -d 'SRC^' <<'EOS' > E F > /| | > B C D > \|/ > A > EOS already rebased 1:112478962961 "B" (B) already rebased 2:dc0947a82db8 "C" (C) already rebased 3:b18e25de2cf5 "D" (D) already rebased 4:312782b8f06e "E" (E) already rebased 5:ad6717a6a58e "F" (F tip) o 5: ad6717a6a58e F | o 3: b18e25de2cf5 D | | o 4: 312782b8f06e E | |\ +---o 2: dc0947a82db8 C | | | o 1: 112478962961 B |/ o 0: 426bada5c675 A Massively rewrite the DAG: $ rebasewithdag -r 'all()' -d 'map(SRC, "A:I,I:null,H:A,B:J,J:C,C:H,D:E,F:G,G:K,K:D,E:B")' <<'EOS' > D G K > | | | > C F J > | | | > B E I > \| | > A H > EOS rebasing 4:701514e1408d "I" (I) rebasing 0:426bada5c675 "A" (A) rebasing 1:e7050b6e5048 "H" (H) rebasing 5:26805aba1e60 "C" (C) rebasing 7:cf89f86b485b "J" (J) rebasing 2:112478962961 "B" (B) rebasing 3:7fb047a69f22 "E" (E) rebasing 8:f585351a92f8 "D" (D) rebasing 10:ae41898d7875 "K" (K tip) rebasing 9:711f53bbef0b "G" (G) rebasing 6:64a8289d2492 "F" (F) o 21: 3735afb3713a F | o 20: 07698142d7a7 G | o 19: 33aba52e7e72 K | o 18: 9fdae89dc5a1 D | o 17: 277dda9a65ee E | o 16: 9c74fd8657ad B | o 15: 6527eb0688bb J | o 14: e94d655b928d C | o 13: 620d6d349459 H | o 12: a569a116758f A | o 11: 2bf1302f5c18 I Resolve instability: $ rebasewithdag <<'EOF' -r 'orphan()-obsolete()' -d 'max((successors(max(roots(ALLSRC) & ::SRC)^)-obsolete())::)' > F2 > | > J E E2 > | |/ > I2 I | E3 > \| |/ > H | G > | | | > B2 D F > | |/ # rebase: B -> B2 > N C # amend: E -> E2 > | | # amend: E2 -> E3 > M B # rebase: F -> F2 > \| # amend: I -> I2 > A > EOF 6 new orphan changesets rebasing 16:5c432343bf59 "J" (J tip) rebasing 3:26805aba1e60 "C" (C) rebasing 6:f585351a92f8 "D" (D) rebasing 10:ffebc37c5d0b "E3" (E3) rebasing 13:fb184bcfeee8 "F2" (F2) rebasing 11:dc838ab4c0da "G" (G) o 22: 174f63d574a8 G | o 21: c9d9fbe76705 F2 | o 20: 0a03c2ede755 E3 | o 19: 228d9d2541b1 D | o 18: cd856b400c95 C | o 17: 9148200c858c J | o 15: eb74780f5094 I2 | o 12: 78309edd643f H | o 5: 4b4531bd8e1d B2 | o 4: 337c285c272b N | o 2: 699bc4b6fa22 M | o 0: 426bada5c675 A