Test for the heuristic copytracing algorithm

============================================

  $ cat >> $TESTTMP/copytrace.sh << '__EOF__'

  > initclient() {

  > cat >> $1/.hg/hgrc <<EOF

  > [experimental]

  > copytrace = heuristics

  > copytrace.sourcecommitlimit = -1

  > EOF

  > }

  > __EOF__

  $ . "$TESTTMP/copytrace.sh"

  $ cat >> $HGRCPATH << EOF

  > [extensions]

  > rebase=

  > shelve=

  > EOF

NOTE: calling initclient() set copytrace.sourcecommitlimit=-1 as we want to

prevent the full copytrace algorithm to run and test the heuristic algorithm

without complexing the test cases with public and draft commits.

Check filename heuristics (same dirname and same basename)

----------------------------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo a > a

  $ mkdir dir

  $ echo a > dir/file.txt

  $ hg addremove

  adding a

  adding dir/file.txt

  $ hg ci -m initial

  $ hg mv a b

  $ hg mv -q dir dir2

  $ hg ci -m 'mv a b, mv dir/ dir2/'

  $ hg up -q 0

  $ echo b > a

  $ echo b > dir/file.txt

  $ hg ci -qm 'mod a, mod dir/file.txt'

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: 557f403c0afd2a3cf15d7e2fb1f1001a8b85e081

  |   desc: mod a, mod dir/file.txt

  | o  changeset: 928d74bc9110681920854d845c06959f6dfc9547

  |/    desc: mv a b, mv dir/ dir2/

  o  changeset: 3c482b16e54596fed340d05ffaf155f156cda7ee

      desc: initial

  $ hg rebase -s . -d 1

  rebasing 2:557f403c0afd "mod a, mod dir/file.txt" (tip)

  merging b and a to b

  merging dir2/file.txt and dir/file.txt to dir2/file.txt

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/557f403c0afd-9926eeff-rebase.hg

  $ cd ..

  $ rm -rf repo

Make sure filename heuristics do not when they are not related

--------------------------------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo 'somecontent' > a

  $ hg add a

  $ hg ci -m initial

  $ hg rm a

  $ echo 'completelydifferentcontext' > b

  $ hg add b

  $ hg ci -m 'rm a, add b'

  $ hg up -q 0

  $ printf 'somecontent\nmoarcontent' > a

  $ hg ci -qm 'mode a'

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: d526312210b9e8f795d576a77dc643796384d86e

  |   desc: mode a

  | o  changeset: 46985f76c7e5e5123433527f5c8526806145650b

  |/    desc: rm a, add b

  o  changeset: e5b71fb099c29d9172ef4a23485aaffd497e4cc0

      desc: initial

  $ hg rebase -s . -d 1

  rebasing 2:d526312210b9 "mode a" (tip)

  What do you want to do?

  use (c)hanged version, leave (d)eleted, or leave (u)nresolved? u

  unresolved conflicts (see hg resolve, then hg rebase --continue)

  [1]

  $ cd ..

  $ rm -rf repo

Test when lca didn't modified the file that was moved

-----------------------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo 'somecontent' > a

  $ hg add a

  $ hg ci -m initial

  $ echo c > c

  $ hg add c

  $ hg ci -m randomcommit

  $ hg mv a b

  $ hg ci -m 'mv a b'

  $ hg up -q 1

  $ echo b > a

  $ hg ci -qm 'mod a'

  $ hg log -G -T 'changeset: {node}\n desc: {desc}, phase: {phase}\n'

  @  changeset: 9d5cf99c3d9f8e8b05ba55421f7f56530cfcf3bc

  |   desc: mod a, phase: draft

  | o  changeset: d760186dd240fc47b91eb9f0b58b0002aaeef95d

  |/    desc: mv a b, phase: draft

  o  changeset: 48e1b6ba639d5d7fb313fa7989eebabf99c9eb83

  |   desc: randomcommit, phase: draft

  o  changeset: e5b71fb099c29d9172ef4a23485aaffd497e4cc0

      desc: initial, phase: draft

  $ hg rebase -s . -d 2

  rebasing 3:9d5cf99c3d9f "mod a" (tip)

  merging b and a to b

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/9d5cf99c3d9f-f02358cc-rebase.hg

  $ cd ..

  $ rm -rf repo

Rebase "backwards"

------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo 'somecontent' > a

  $ hg add a

  $ hg ci -m initial

  $ echo c > c

  $ hg add c

  $ hg ci -m randomcommit

  $ hg mv a b

  $ hg ci -m 'mv a b'

  $ hg up -q 2

  $ echo b > b

  $ hg ci -qm 'mod b'

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: fbe97126b3969056795c462a67d93faf13e4d298

  |   desc: mod b

  o  changeset: d760186dd240fc47b91eb9f0b58b0002aaeef95d

  |   desc: mv a b

  o  changeset: 48e1b6ba639d5d7fb313fa7989eebabf99c9eb83

  |   desc: randomcommit

  o  changeset: e5b71fb099c29d9172ef4a23485aaffd497e4cc0

      desc: initial

  $ hg rebase -s . -d 0

  rebasing 3:fbe97126b396 "mod b" (tip)

  merging a and b to a

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/fbe97126b396-cf5452a1-rebase.hg

  $ cd ..

  $ rm -rf repo

Check a few potential move candidates

-------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ mkdir dir

  $ echo a > dir/a

  $ hg add dir/a

  $ hg ci -qm initial

  $ hg mv dir/a dir/b

  $ hg ci -qm 'mv dir/a dir/b'

  $ mkdir dir2

  $ echo b > dir2/a

  $ hg add dir2/a

  $ hg ci -qm 'create dir2/a'

  $ hg up -q 0

  $ echo b > dir/a

  $ hg ci -qm 'mod dir/a'

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: 6b2f4cece40fd320f41229f23821256ffc08efea

  |   desc: mod dir/a

  | o  changeset: 4494bf7efd2e0dfdd388e767fb913a8a3731e3fa

  | |   desc: create dir2/a

  | o  changeset: b1784dfab6ea6bfafeb11c0ac50a2981b0fe6ade

  |/    desc: mv dir/a dir/b

  o  changeset: 36859b8907c513a3a87ae34ba5b1e7eea8c20944

      desc: initial

  $ hg rebase -s . -d 2

  rebasing 3:6b2f4cece40f "mod dir/a" (tip)

  merging dir/b and dir/a to dir/b

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/6b2f4cece40f-503efe60-rebase.hg

  $ cd ..

  $ rm -rf repo

Test the copytrace.movecandidateslimit with many move candidates

----------------------------------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo a > a

  $ hg add a

  $ hg ci -m initial

  $ hg mv a foo

  $ echo a > b

  $ echo a > c

  $ echo a > d

  $ echo a > e

  $ echo a > f

  $ echo a > g

  $ hg add b

  $ hg add c

  $ hg add d

  $ hg add e

  $ hg add f

  $ hg add g

  $ hg ci -m 'mv a foo, add many files'

  $ hg up -q ".^"

  $ echo b > a

  $ hg ci -m 'mod a'

  created new head

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: ef716627c70bf4ca0bdb623cfb0d6fe5b9acc51e

  |   desc: mod a

  | o  changeset: 8329d5c6bf479ec5ca59b9864f3f45d07213f5a4

  |/    desc: mv a foo, add many files

  o  changeset: 1451231c87572a7d3f92fc210b4b35711c949a98

      desc: initial

With small limit

  $ hg rebase -s 2 -d 1 --config experimental.copytrace.movecandidateslimit=0

  rebasing 2:ef716627c70b "mod a" (tip)

  skipping copytracing for 'a', more candidates than the limit: 7

  What do you want to do?

  use (c)hanged version, leave (d)eleted, or leave (u)nresolved? u

  unresolved conflicts (see hg resolve, then hg rebase --continue)

  [1]

  $ hg rebase --abort

  rebase aborted

With default limit which is 100

  $ hg rebase -s 2 -d 1

  rebasing 2:ef716627c70b "mod a" (tip)

  merging foo and a to foo

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/ef716627c70b-24681561-rebase.hg

  $ cd ..

  $ rm -rf repo

Move file in one branch and delete it in another

-----------------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo a > a

  $ hg add a

  $ hg ci -m initial

  $ hg mv a b

  $ hg ci -m 'mv a b'

  $ hg up -q ".^"

  $ hg rm a

  $ hg ci -m 'del a'

  created new head

  $ hg log -G -T 'changeset: {node}\n desc: {desc}, phase: {phase}\n'

  @  changeset: 7d61ee3b1e48577891a072024968428ba465c47b

  |   desc: del a, phase: draft

  | o  changeset: 472e38d57782172f6c6abed82a94ca0d998c3a22

  |/    desc: mv a b, phase: draft

  o  changeset: 1451231c87572a7d3f92fc210b4b35711c949a98

      desc: initial, phase: draft

  $ hg rebase -s 1 -d 2

  rebasing 1:472e38d57782 "mv a b"

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/472e38d57782-17d50e29-rebase.hg

  $ hg up -q c492ed3c7e35dcd1dc938053b8adf56e2cfbd062

  $ ls

  b

  $ cd ..

  $ rm -rf repo

Move a directory in draft branch

--------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ mkdir dir

  $ echo a > dir/a

  $ hg add dir/a

  $ hg ci -qm initial

  $ echo b > dir/a

  $ hg ci -qm 'mod dir/a'

  $ hg up -q ".^"

  $ hg mv -q dir/ dir2

  $ hg ci -qm 'mv dir/ dir2/'

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: a33d80b6e352591dfd82784e1ad6cdd86b25a239

  |   desc: mv dir/ dir2/

  | o  changeset: 6b2f4cece40fd320f41229f23821256ffc08efea

  |/    desc: mod dir/a

  o  changeset: 36859b8907c513a3a87ae34ba5b1e7eea8c20944

      desc: initial

  $ hg rebase -s . -d 1

  rebasing 2:a33d80b6e352 "mv dir/ dir2/" (tip)

  merging dir/a and dir2/a to dir2/a

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/a33d80b6e352-fecb9ada-rebase.hg

  $ cd ..

  $ rm -rf server

  $ rm -rf repo

Move file twice and rebase mod on top of moves

----------------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo a > a

  $ hg add a

  $ hg ci -m initial

  $ hg mv a b

  $ hg ci -m 'mv a b'

  $ hg mv b c

  $ hg ci -m 'mv b c'

  $ hg up -q 0

  $ echo c > a

  $ hg ci -m 'mod a'

  created new head

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: d413169422167a3fa5275fc5d71f7dea9f5775f3

  |   desc: mod a

  | o  changeset: d3efd280421d24f9f229997c19e654761c942a71

  | |   desc: mv b c

  | o  changeset: 472e38d57782172f6c6abed82a94ca0d998c3a22

  |/    desc: mv a b

  o  changeset: 1451231c87572a7d3f92fc210b4b35711c949a98

      desc: initial

  $ hg rebase -s . -d 2

  rebasing 3:d41316942216 "mod a" (tip)

  merging c and a to c

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/d41316942216-2b5949bc-rebase.hg

  $ cd ..

  $ rm -rf repo

Move file twice and rebase moves on top of mods

-----------------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo a > a

  $ hg add a

  $ hg ci -m initial

  $ hg mv a b

  $ hg ci -m 'mv a b'

  $ hg mv b c

  $ hg ci -m 'mv b c'

  $ hg up -q 0

  $ echo c > a

  $ hg ci -m 'mod a'

  created new head

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: d413169422167a3fa5275fc5d71f7dea9f5775f3

  |   desc: mod a

  | o  changeset: d3efd280421d24f9f229997c19e654761c942a71

  | |   desc: mv b c

  | o  changeset: 472e38d57782172f6c6abed82a94ca0d998c3a22

  |/    desc: mv a b

  o  changeset: 1451231c87572a7d3f92fc210b4b35711c949a98

      desc: initial

  $ hg rebase -s 1 -d .

  rebasing 1:472e38d57782 "mv a b"

  merging a and b to b

  rebasing 2:d3efd280421d "mv b c"

  merging b and c to c

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/472e38d57782-ab8d3c58-rebase.hg

  $ cd ..

  $ rm -rf repo

Move one file and add another file in the same folder in one branch, modify file in another branch

--------------------------------------------------------------------------------------------------

  $ hg init repo

  $ initclient repo

  $ cd repo

  $ echo a > a

  $ hg add a

  $ hg ci -m initial

  $ hg mv a b

  $ hg ci -m 'mv a b'

  $ echo c > c

  $ hg add c

  $ hg ci -m 'add c'

  $ hg up -q 0

  $ echo b > a

  $ hg ci -m 'mod a'

  created new head

  $ hg log -G -T 'changeset: {node}\n desc: {desc}\n'

  @  changeset: ef716627c70bf4ca0bdb623cfb0d6fe5b9acc51e

  |   desc: mod a

  | o  changeset: b1a6187e79fbce851bb584eadcb0cc4a80290fd9

  | |   desc: add c

  | o  changeset: 472e38d57782172f6c6abed82a94ca0d998c3a22

  |/    desc: mv a b

  o  changeset: 1451231c87572a7d3f92fc210b4b35711c949a98

      desc: initial

  $ hg rebase -s . -d 2

  rebasing 3:ef716627c70b "mod a" (tip)

  merging b and a to b

  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/ef716627c70b-24681561-rebase.hg

  $ ls

  b