view tests/test-rank.t @ 50706:0452af304808

stream-clone: add a v3 version of the protocol

This new version is less rigid regarding the extract number of files and number
of bytes to be actually transfered, it also lays the groundwork for other
improvements.

The format stays experimental, but this is an interesting base to build upon.

=============================================================
Check that we can compute and exchange revision rank properly
=============================================================

  $ cat << EOF >> $HGRCPATH
  > [format]
  > exp-use-changelog-v2=enable-unstable-format-and-corrupt-my-data
  > EOF


Test minimal rank computation with merge

  $ hg init rank-repo-minimal
  $ cd rank-repo-minimal
  $ touch 0
  $ hg commit -Aqm 0
  $ touch 1
  $ hg commit -Aqm 1
  $ hg update -qr 0
  $ touch 2
  $ hg commit -Aqm 2
  $ hg merge -qr 1
  $ hg commit -m 3
  $ touch 4
  $ hg commit -Aqm 4
  $ hg log --graph --template '{rev} {_fast_rank}\n'
  @  4 5
  |
  o    3 4
  |\
  | o  2 2
  | |
  o |  1 2
  |/
  o  0 1
  
  $ cd ..


Build a bigger example repo

  $ hg init rank-repo-generated
  $ cd rank-repo-generated
  $ hg debugbuilddag '.:root1+5:mp1<root1+10:mp2/mp1+3<mp1+2:mp3/mp2$+15/mp1+4'
  $ hg log -G -T '{desc}'
  o  r42
  |
  o  r41
  |
  o  r40
  |
  o  r39
  |
  o    r38
  |\
  | o  r37
  | |
  | o  r36
  | |
  | o  r35
  | |
  | o  r34
  | |
  | o  r33
  | |
  | o  r32
  | |
  | o  r31
  | |
  | o  r30
  | |
  | o  r29
  | |
  | o  r28
  | |
  | o  r27
  | |
  | o  r26
  | |
  | o  r25
  | |
  | o  r24
  | |
  | o  r23
  |
  | o    r22
  | |\
  | | o  r21
  | | |
  +---o  r20
  | |
  | | o  r19
  | | |
  | | o  r18
  | | |
  | | o  r17
  | | |
  +---o  r16
  | |/
  | o  r15
  | |
  | o  r14
  | |
  | o  r13
  | |
  | o  r12
  | |
  | o  r11
  | |
  | o  r10
  | |
  | o  r9
  | |
  | o  r8
  | |
  | o  r7
  | |
  | o  r6
  | |
  o |  r5
  | |
  o |  r4
  | |
  o |  r3
  | |
  o |  r2
  | |
  o |  r1
  |/
  o  r0
  


Check the rank
--------------

  $ hg log -G -T '{_fast_rank}'
  o  26
  |
  o  25
  |
  o  24
  |
  o  23
  |
  o    22
  |\
  | o  15
  | |
  | o  14
  | |
  | o  13
  | |
  | o  12
  | |
  | o  11
  | |
  | o  10
  | |
  | o  9
  | |
  | o  8
  | |
  | o  7
  | |
  | o  6
  | |
  | o  5
  | |
  | o  4
  | |
  | o  3
  | |
  | o  2
  | |
  | o  1
  |
  | o    19
  | |\
  | | o  8
  | | |
  +---o  7
  | |
  | | o  20
  | | |
  | | o  19
  | | |
  | | o  18
  | | |
  +---o  17
  | |/
  | o  11
  | |
  | o  10
  | |
  | o  9
  | |
  | o  8
  | |
  | o  7
  | |
  | o  6
  | |
  | o  5
  | |
  | o  4
  | |
  | o  3
  | |
  | o  2
  | |
  o |  6
  | |
  o |  5
  | |
  o |  4
  | |
  o |  3
  | |
  o |  2
  |/
  o  1