#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).

(We disable the revlog compression to avoid the annoying instability in the chunk size that depends on the compressors implementation)

  $ cat << EOF >> $HGRCPATH

  > [format]

  > sparse-revlog = no

  > revlog-compression = none

  > 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 ..

  >>> 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      p1      p2  chain# chainlen     prev   delta

        0      -1      -1       1        1       -1    base

  $ 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      p1      p2  chain# chainlen     prev   delta

        0      -1      -1       1        1       -1    base

        1       0      -1       1        2        0    prev

        2       0      -1       1        3        1    prev

        3       0      -1       2        1       -1    base

  $ hg -R usegd debugdeltachain -m

      rev      p1      p2  chain# chainlen     prev   delta

        0      -1      -1       1        1       -1    base

        1       0      -1       1        2        0      p1

        2       0      -1       1        3        1    prev

        3       0      -1       1        2        0      p1

  $ hg -R full debugdeltachain -m

      rev      p1      p2  chain# chainlen     prev   delta

        0      -1      -1       1        1       -1    base

        1       0      -1       1        2        0      p1

        2       0      -1       1        2        0      p1

        3       0      -1       1        2        0      p1

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 --config storage.revlog.optimize-delta-parent-choice=no

  $ hg debugdeltachain -m

      rev      p1      p2  chain# chainlen     prev   delta

        0      -1      -1       1        1       -1    base

        1      -1      -1       2        1       -1    base

        2       1       0       2        2        1      p1

  $ 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      p1      p2  chain# chainlen     prev   delta

        0      -1      -1       1        1       -1    base

        1      -1      -1       2        1       -1    base

        2       1       0       1        2        0      p2

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: 03} (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 --all-info

      rev      p1      p2  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

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

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

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

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

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

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

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

        7       6      -1       2        2        6      p1         57         90        103   1.14444       103         0    0.00000

        8       7      -1       2        3        7      p1         57        135        160   1.18519       160         0    0.00000

        9       8      -1       2        4        8      p1         57        180        217   1.20556       217         0    0.00000

       10       9      -1       2        5        9      p1         58        226        275   1.21681       275         0    0.00000

       11      10      -1       2        6       10      p1         58        272        333   1.22426       333         0    0.00000

       12      11      -1       2        7       11      p1         58        318        391   1.22956       391         0    0.00000

       13      12      -1       2        8       12      p1         58        364        449   1.23352       449         0    0.00000

       14      13      -1       2        9       13      p1         58        410        507   1.23659       507         0    0.00000

       15      14      -1       2       10       14      p1         58        456        565   1.23904       565         0    0.00000

       16      15      -1       2       11       15      p1         58        502        623   1.24104       623         0    0.00000

       17      16      -1       2       12       16      p1         58        548        681   1.24270       681         0    0.00000

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

       19      18      -1       3        2       18      p1         58         92        105   1.14130       105         0    0.00000

       20      19      -1       3        3       19      p1         58        138        163   1.18116       163         0    0.00000

       21      20      -1       3        4       20      p1         58        184        221   1.20109       221         0    0.00000

       22      21      -1       3        5       21      p1         58        230        279   1.21304       279         0    0.00000

       23      22      -1       3        6       22      p1         58        276        337   1.22101       337         0    0.00000

       24      23      -1       3        7       23      p1         58        322        395   1.22671       395         0    0.00000

       25      24      -1       3        8       24      p1         58        368        453   1.23098       453         0    0.00000

       26      25      -1       3        9       25      p1         58        414        511   1.23430       511         0    0.00000

       27      26      -1       3       10       26      p1         58        460        569   1.23696       569         0    0.00000

       28      27      -1       3       11       27      p1         58        506        627   1.23913       627         0    0.00000

       29      28      -1       3       12       28      p1         58        552        685   1.24094       685         0    0.00000

       30      29      -1       3       13       29      p1         58        598        743   1.24247       743         0    0.00000

       31      30      -1       3       14       30      p1         58        644        801   1.24379       801         0    0.00000

       32      31      -1       3       15       31      p1         58        690        859   1.24493       859         0    0.00000

       33      32      -1       3       16       32      p1         58        736        917   1.24592       917         0    0.00000

       34      33      -1       3       17       33      p1         58        782        975   1.24680       975         0    0.00000

       35      34      -1       3       18       34      p1         58        828       1033   1.24758      1033         0    0.00000

       36      35      -1       3       19       35      p1         58        874       1091   1.24828      1091         0    0.00000

       37      36      -1       3       20       36      p1         58        920       1149   1.24891      1149         0    0.00000

       38      37      -1       3       21       37      p1         58        966       1207   1.24948      1207         0    0.00000

       39      38      -1       3       22       38      p1         58       1012       1265   1.25000      1265         0    0.00000

       40      39      -1       3       23       39      p1         58       1058       1323   1.25047      1323         0    0.00000

       41      40      -1       3       24       40      p1         58       1104       1381   1.25091      1381         0    0.00000

       42      41      -1       3       25       41      p1         58       1150       1439   1.25130      1439         0    0.00000

       43      42      -1       3       26       42      p1         58       1196       1497   1.25167      1497         0    0.00000

       44      43      -1       3       27       43      p1         58       1242       1555   1.25201      1555         0    0.00000

       45      44      -1       3       28       44      p1         58       1288       1613   1.25233      1613         0    0.00000

       46      45      -1       3       29       45      p1         58       1334       1671   1.25262      1671         0    0.00000

       47      46      -1       3       30       46      p1         58       1380       1729   1.25290      1729         0    0.00000

       48      47      -1       3       31       47      p1         58       1426       1787   1.25316      1787         0    0.00000

       49       5      -1       4        1       -1    base        317        316        317   1.00316       317         0    0.00000

       50      49      -1       4        2       49      p1         58        362        375   1.03591       375         0    0.00000

       51      17      -1       5        1       -1    base        595        594        595   1.00168       595         0    0.00000

       52      51      -1       5        2       51      p1         58        640        653   1.02031       653         0    0.00000

       53      52      -1       6        1       -1    base          0          0          0   0.00000         0         0    0.00000

       54      53      -1       7        1       -1    base        641        640        641   1.00156       641         0    0.00000

  $ hg clone --pull source-repo --config experimental.maxdeltachainspan=2900 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 --all-info

      rev      p1      p2  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio

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

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

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

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

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

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

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

        7       6      -1       2        2        6      p1         57         90        103   1.14444       103         0    0.00000

        8       7      -1       2        3        7      p1         57        135        160   1.18519       160         0    0.00000

        9       8      -1       2        4        8      p1         57        180        217   1.20556       217         0    0.00000

       10       9      -1       2        5        9      p1         58        226        275   1.21681       275         0    0.00000

       11      10      -1       2        6       10      p1         58        272        333   1.22426       333         0    0.00000

       12      11      -1       2        7       11      p1         58        318        391   1.22956       391         0    0.00000

       13      12      -1       2        8       12      p1         58        364        449   1.23352       449         0    0.00000

       14      13      -1       2        9       13      p1         58        410        507   1.23659       507         0    0.00000

       15      14      -1       2       10       14      p1         58        456        565   1.23904       565         0    0.00000

       16      15      -1       2       11       15      p1         58        502        623   1.24104       623         0    0.00000

       17      16      -1       2       12       16      p1         58        548        681   1.24270       681         0    0.00000

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

       19      18      -1       3        2       18      p1         58         92        105   1.14130       105         0    0.00000

       20      19      -1       3        3       19      p1         58        138        163   1.18116       163         0    0.00000

       21      20      -1       3        4       20      p1         58        184        221   1.20109       221         0    0.00000

       22      21      -1       3        5       21      p1         58        230        279   1.21304       279         0    0.00000

       23      22      -1       3        6       22      p1         58        276        337   1.22101       337         0    0.00000

       24      23      -1       3        7       23      p1         58        322        395   1.22671       395         0    0.00000

       25      24      -1       3        8       24      p1         58        368        453   1.23098       453         0    0.00000

       26      25      -1       3        9       25      p1         58        414        511   1.23430       511         0    0.00000

       27      26      -1       3       10       26      p1         58        460        569   1.23696       569         0    0.00000

       28      27      -1       3       11       27      p1         58        506        627   1.23913       627         0    0.00000

       29      28      -1       3       12       28      p1         58        552        685   1.24094       685         0    0.00000