dirstate-v2: no longer register the data-file during transaction If the data file change during the transaction, we cannot truncate it. The content of the file itself is fine as it will get backed up at the same time as the docket. Leaving the trailing data at the end of failed transaction is fine. The dirstate-v2 format supports it. The dead data will simply we written over if necessary.

     1

  $ hg init

     2

  $ touch unknown

     3

     4

  $ touch a

     5

  $ hg add a

     6

  $ hg ci -m "1"

     7

     8

  $ touch b

     9

  $ hg add b

    10

  $ hg ci -m "2"

    11

    12

Should show unknown

    13

    14

  $ hg status

    15

  ? unknown

    16

  $ hg revert -r 0 --all

    17

  removing b

    18

    19

Should show unknown and b removed

    20

    21

  $ hg status

    22

  R b

    23

  ? unknown

    24

    25

Should show a and unknown

    26

    27

  $ ls -A

    28

  .hg

    29

  a

    30

  unknown