#require no-reposimplestore

Check whether size of generaldelta revlog is not bigger than its

regular equivalent. Test would fail if generaldelta was naive

implementation of parentdelta: third manifest revision would be fully

inserted due to big distance from its paren revision (zero).

  $ cat << EOF >> $HGRCPATH

  > [format]

  > sparse-revlog = no

  > EOF

  $ hg init repo --config format.generaldelta=no --config format.usegeneraldelta=no

  $ cd repo

  $ echo foo > foo

  $ echo bar > bar

  $ echo baz > baz

  $ hg commit -q -Am boo

  $ hg clone --pull . ../gdrepo -q --config format.generaldelta=yes

  $ for r in 1 2 3; do

  >   echo $r > foo

  >   hg commit -q -m $r

  >   hg up -q -r 0

  >   hg pull . -q -r $r -R ../gdrepo

  > done

  $ cd ..

  >>> from __future__ import print_function

  >>> import os

  >>> regsize = os.stat("repo/.hg/store/00manifest.i").st_size

  >>> gdsize = os.stat("gdrepo/.hg/store/00manifest.i").st_size

  >>> if regsize < gdsize:

  ...     print('generaldata increased size of manifest')

Verify rev reordering doesnt create invalid bundles (issue4462)

This requires a commit tree that when pulled will reorder manifest revs such

that the second manifest to create a file rev will be ordered before the first

manifest to create that file rev. We also need to do a partial pull to ensure

reordering happens. At the end we verify the linkrev points at the earliest

commit.

  $ hg init server --config format.generaldelta=True

  $ cd server

  $ touch a

  $ hg commit -Aqm a

  $ echo x > x

  $ echo y > y

  $ hg commit -Aqm xy

  $ hg up -q '.^'

  $ echo x > x

  $ echo z > z

  $ hg commit -Aqm xz

  $ hg up -q 1

  $ echo b > b

  $ hg commit -Aqm b

  $ hg merge -q 2

  $ hg commit -Aqm merge

  $ echo c > c

  $ hg commit -Aqm c

  $ hg log -G -T '{rev} {shortest(node)} {desc}'

  @  5 ebb8 c

  |

  o    4 baf7 merge

  |\

  | o  3 a129 b

  | |

  o |  2 958c xz

  | |

  | o  1 f00c xy

  |/

  o  0 3903 a

  $ cd ..

  $ hg init client --config format.generaldelta=false --config format.usegeneraldelta=false

  $ cd client

  $ hg pull -q ../server -r 4

  $ hg debugdeltachain x

      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

        0       1        1       -1    base          3          2          3   1.50000         3         0    0.00000

  $ cd ..

Test "usegeneraldelta" config

(repo are general delta, but incoming bundle are not re-deltafied)

delta coming from the server base delta server are not recompressed.

(also include the aggressive version for comparison)

  $ hg clone repo --pull --config format.usegeneraldelta=1 usegd

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 4 changesets with 6 changes to 3 files (+2 heads)

  new changesets 0ea3fcf9d01d:bba78d330d9c

  updating to branch default

  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg clone repo --pull --config format.generaldelta=1 full

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 4 changesets with 6 changes to 3 files (+2 heads)

  new changesets 0ea3fcf9d01d:bba78d330d9c

  updating to branch default

  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg -R repo debugdeltachain -m

      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

        3       2        1       -1    base        104        135        104   0.77037       104         0    0.00000

  $ hg -R usegd debugdeltachain -m

      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

  $ hg -R full debugdeltachain -m

      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

Test revlog.optimize-delta-parent-choice

  $ hg init --config format.generaldelta=1 aggressive

  $ cd aggressive

  $ cat << EOF >> .hg/hgrc

  > [format]

  > generaldelta = 1

  > EOF

  $ touch a b c d e

  $ hg commit -Aqm side1

  $ hg up -q null

  $ touch x y

  $ hg commit -Aqm side2

- Verify non-aggressive merge uses p1 (commit 1) as delta parent

  $ hg merge -q 0

  $ hg commit -q -m merge

  $ hg debugdeltachain -m

      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

  $ hg strip -q -r . --config extensions.strip=

- Verify aggressive merge uses p2 (commit 0) as delta parent

  $ hg up -q -C 1

  $ hg merge -q 0

  $ hg commit -q -m merge --config storage.revlog.optimize-delta-parent-choice=yes

  $ hg debugdeltachain -m

      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

Test that strip bundle use bundle2

  $ hg --config extensions.strip= strip .

  0 files updated, 0 files merged, 5 files removed, 0 files unresolved

  saved backup bundle to $TESTTMP/aggressive/.hg/strip-backup/1c5d4dc9a8b8-6c68e60c-backup.hg

  $ hg debugbundle .hg/strip-backup/*

  Stream params: {Compression: BZ}

  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)

      1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9

  cache:rev-branch-cache -- {} (mandatory: False)

  phase-heads -- {} (mandatory: True)

      1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9 draft

  $ cd ..

test maxdeltachainspan

  $ hg init source-repo

  $ cd source-repo

  $ hg debugbuilddag --new-file '.+5:brancha$.+11:branchb$.+30:branchc<brancha+2<branchb+2'

# add an empty revision somewhere

  $ hg up tip

  14 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg rm .

  removing nf10

  removing nf11

  removing nf12

  removing nf13

  removing nf14

  removing nf15

  removing nf16

  removing nf17

  removing nf51

  removing nf52

  removing nf6

  removing nf7

  removing nf8

  removing nf9

  $ hg commit -m 'empty all'

  $ hg revert --all --rev 'p1(.)'

  adding nf10

  adding nf11

  adding nf12

  adding nf13

  adding nf14

  adding nf15

  adding nf16

  adding nf17

  adding nf51

  adding nf52

  adding nf6

  adding nf7

  adding nf8

  adding nf9

  $ hg commit -m 'restore all'

  $ hg up null

  0 files updated, 0 files merged, 14 files removed, 0 files unresolved

  $ 

  $ cd ..

  $ hg -R source-repo debugdeltachain -m

      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

        0       1        1       -1    base         46         45         46   1.02222        46         0    0.00000

        1       1        2        0      p1         57         90        103   1.14444       103         0    0.00000

        2       1        3        1      p1         57        135        160   1.18519       160         0    0.00000

        3       1        4        2      p1         57        180        217   1.20556       217         0    0.00000

        4       1        5        3      p1         57        225        274   1.21778       274         0    0.00000

        5       1        6        4      p1         57        270        331   1.22593       331         0    0.00000

        6       2        1       -1    base         46         45         46   1.02222        46         0    0.00000

        7       2        2        6      p1         57         90        103   1.14444       103         0    0.00000

        8       2        3        7      p1         57        135        160   1.18519       160         0    0.00000

        9       2        4        8      p1         57        180        217   1.20556       217         0    0.00000

       10       2        5        9      p1         58        226        275   1.21681       275         0    0.00000

       11       2        6       10      p1         58        272        333   1.22426       333         0    0.00000

       12       2        7       11      p1         58        318        391   1.22956       391         0    0.00000

       13       2        8       12      p1         58        364        449   1.23352       449         0    0.00000

       14       2        9       13      p1         58        410        507   1.23659       507         0    0.00000

       15       2       10       14      p1         58        456        565   1.23904       565         0    0.00000

       16       2       11       15      p1         58        502        623   1.24104       623         0    0.00000

       17       2       12       16      p1         58        548        681   1.24270       681         0    0.00000

       18       3        1       -1    base         47         46         47   1.02174        47         0    0.00000

       19       3        2       18      p1         58         92        105   1.14130       105         0    0.00000

       20       3        3       19      p1         58        138        163   1.18116       163         0    0.00000

       21       3        4       20      p1         58        184        221   1.20109       221         0    0.00000

       22       3        5       21      p1         58        230        279   1.21304       279         0    0.00000

       23       3        6       22      p1         58        276        337   1.22101       337         0    0.00000

       24       3        7       23      p1         58        322        395   1.22671       395         0    0.00000

       25       3        8       24      p1         58        368        453   1.23098       453         0    0.00000

       26       3        9       25      p1         58        414        511   1.23430       511         0    0.00000

       27       3       10       26      p1         58        460        569   1.23696       569         0    0.00000

       28       3       11       27      p1         58        506        627   1.23913       627         0    0.00000

       29       3       12       28      p1         58        552        685   1.24094       685         0    0.00000

       30       3       13       29      p1         58        598        743   1.24247       743         0    0.00000

       31       3       14       30      p1         58        644        801   1.24379       801         0    0.00000

       32       3       15       31      p1         58        690        859   1.24493       859         0    0.00000

       33       3       16       32      p1         58        736        917   1.24592       917         0    0.00000

       34       3       17       33      p1         58        782        975   1.24680       975         0    0.00000

       35       3       18       34      p1         58        828       1033   1.24758      1033         0    0.00000

       36       3       19       35      p1         58        874       1091   1.24828      1091         0    0.00000

       37       3       20       36      p1         58        920       1149   1.24891      1149         0    0.00000

       38       3       21       37      p1         58        966       1207   1.24948      1207         0    0.00000

       39       3       22       38      p1         58       1012       1265   1.25000      1265         0    0.00000

       40       3       23       39      p1         58       1058       1323   1.25047      1323         0    0.00000

       41       3       24       40      p1         58       1104       1381   1.25091      1381         0    0.00000

       42       3       25       41      p1         58       1150       1439   1.25130      1439         0    0.00000

       43       3       26       42      p1         58       1196       1497   1.25167      1497         0    0.00000

       44       3       27       43      p1         58       1242       1555   1.25201      1555         0    0.00000

       45       3       28       44      p1         58       1288       1613   1.25233      1613         0    0.00000

       46       3       29       45      p1         58       1334       1671   1.25262      1671         0    0.00000

       47       3       30       46      p1         58       1380       1729   1.25290      1729         0    0.00000

       48       3       31       47      p1         58       1426       1787   1.25316      1787         0    0.00000

       53       5        1       -1    base          0          0          0   0.00000         0         0    0.00000

  $ hg clone --pull source-repo --config experimental.maxdeltachainspan=2800 relax-chain --config format.generaldelta=yes

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 55 changesets with 53 changes to 53 files (+2 heads)

  new changesets 61246295ee1e:c930ac4a5b32

  updating to branch default

  14 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg -R relax-chain debugdeltachain -m

      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

        0       1        1       -1    base         46         45         46   1.02222        46         0    0.00000

        1       1        2        0      p1         57         90        103   1.14444       103         0    0.00000

        2       1        3        1      p1         57        135        160   1.18519       160         0    0.00000

        3       1        4        2      p1         57        180        217   1.20556       217         0    0.00000

        4       1        5        3      p1         57        225        274   1.21778       274         0    0.00000

        5       1        6        4      p1         57        270        331   1.22593       331         0    0.00000

        6       2        1       -1    base         46         45         46   1.02222        46         0    0.00000

        7       2        2        6      p1         57         90        103   1.14444       103         0    0.00000

        8       2        3        7      p1         57        135        160   1.18519       160         0    0.00000