phases: use revision number in new_heads All graph operations will be done using revision numbers, so passing nodes only means they will eventually get converted to revision numbers internally. As part of an effort to align the code on using revision number we make the `phases.newheads` function operated on revision number, taking them as input and using them in returns, instead of the node-id it used to consume and produce. This is part of multiple changesets effort to translate more part of the logic, but is done step by step to facilitate the identification of issue that might arise in mercurial core and extensions. To make the change simpler to handle for third party extensions, we also rename the function, using a more modern form. This will help detecting the different between the node-id version and the rev-num version. I also take this as an opportunity to add some comment about possible performance improvement for the future. They don't matter too much now, but they are worse exploring in a while.

     1

  $ for i in aaa zzz; do

     2

  >     hg init t

     3

  >     cd t

     4

  > 

     5

  >     echo

     6

  >     echo "-- With $i"

     7

  > 

     8

  >     touch file

     9

  >     hg add file

    10

  >     hg ci -m "Add"

    11

  > 

    12

  >     hg cp file $i

    13

  >     hg ci -m "a -> $i"

    14

  > 

    15

  >     hg cp $i other-file

    16

  >     echo "different" >> $i

    17

  >     hg ci -m "$i -> other-file"

    18

  > 

    19

  >     hg cp other-file somename

    20

  > 

    21

  >     echo "Status":

    22

  >     hg st -C

    23

  >     echo

    24

  >     echo "Diff:"

    25

  >     hg diff -g

    26

  > 

    27

  >     cd ..

    28

  >     rm -rf t

    29

  > done

    30

    31

  -- With aaa

    32

  Status:

    33

  A somename

    34

    other-file

    35

    36

  Diff:

    37

  diff --git a/other-file b/somename

    38

  copy from other-file

    39

  copy to somename

    40

    41

  -- With zzz

    42

  Status:

    43

  A somename

    44

    other-file

    45

    46

  Diff:

    47

  diff --git a/other-file b/somename

    48

  copy from other-file

    49

  copy to somename

    50

    51