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

Pulling from modern to a non-general delta target (and other related checks)

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

There is various issue that can arise when we update the code with modern

storage in mind while working on delta processing. So this file is meant for

various scenario that might break in the future or have break in the past.

Setup

=====

Create a modern server with an older clone

  $ cat << EOF >> $HGRCPATH

  > [command-templates]

  > log = "{desc} {tags}\n"

  > EOF

  $ hg init server

  $ hg clone --quiet --pull server client --config format.usegeneraldelta=no

  $ hg debugformat -R client | grep generaldelta

  generaldelta:        no

Create some complexe history

  $ cd server

  $ hg debugbuilddag -n '.+3:a$.+5:b/a:k$.+7:c/b:l$.+6:d/a:m<k+6/l+1/m'

  $ hg log -G

  o    r36 tip

  |\

  | o  r35

  | |

  | o    r34

  | |\

  | | o  r33

  | | |

  | | o  r32

  | | |

  | | o  r31

  | | |

  | | o  r30

  | | |

  | | o  r29

  | | |

  | | o  r28

  | | |

  o | |    r27 m

  |\ \ \

  | o | |  r26 d

  | | | |

  | o | |  r25

  | | | |

  | o | |  r24

  | | | |

  | o | |  r23

  | | | |

  | o | |  r22

  | | | |

  | o | |  r21

  | | | |

  | o | |  r20

  |  / /

  | o |    r19 l

  | |\ \

  | | o |  r18 c

  | | | |

  | | o |  r17

  | | | |

  | | o |  r16

  | | | |

  | | o |  r15

  | | | |

  | | o |  r14

  | | | |

  | | o |  r13

  | | | |

  | | o |  r12

  | | | |

  | | o |  r11

  | |  /

  +---o  r10 k

  | |/

  | o  r9 b

  | |

  | o  r8

  | |

  | o  r7

  | |

  | o  r6

  | |

  | o  r5

  | |

  | o  r4

  |

  o  r3 a

  |

  o  r2

  |

  o  r1

  |

  o  r0

  $ cd ..

Pull it in the client

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

pull with default value

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

  $ cp -R client client-simple-pull

  $ hg -R client-simple-pull pull

  pulling from $TESTTMP/server

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 37 changesets with 37 changes to 37 files

  new changesets 61246295ee1e:b4b117cbbcf3

  (run 'hg update' to get a working copy)

  $ hg -R client-simple-pull verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checking dirstate

  checked 37 changesets with 37 changes to 37 files

pull with "no-reuse" policy

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

  $ cp -R client client-no-reuse

  $ hg -R client-no-reuse pull --config paths.default:pulled-delta-reuse-policy=no-reuse

  pulling from $TESTTMP/server

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 37 changesets with 37 changes to 37 files

  new changesets 61246295ee1e:b4b117cbbcf3

  (run 'hg update' to get a working copy)

  $ hg -R client-no-reuse verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checking dirstate

  checked 37 changesets with 37 changes to 37 files

pull with "try-base" policy

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

  $ cp -R client client-try-base

  $ hg -R client-try-base pull --config paths.default:pulled-delta-reuse-policy=try-base

  pulling from $TESTTMP/server

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 37 changesets with 37 changes to 37 files

  new changesets 61246295ee1e:b4b117cbbcf3

  (run 'hg update' to get a working copy)

  $ hg -R client-try-base verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checking dirstate

  checked 37 changesets with 37 changes to 37 files

pull with "forced" policy

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

  $ cp -R client client-forced

  $ hg -R client-forced paths --config paths.default:pulled-delta-reuse-policy=forced

  default = $TESTTMP/server

  default:pulled-delta-reuse-policy = forced

  $ hg -R client-forced pull --config paths.default:pulled-delta-reuse-policy=forced

  pulling from $TESTTMP/server

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 37 changesets with 37 changes to 37 files

  new changesets 61246295ee1e:b4b117cbbcf3

  (run 'hg update' to get a working copy)

  $ hg -R client-forced verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checking dirstate

  checked 37 changesets with 37 changes to 37 files