view tests/test-merge5.t @ 19156:ed1a212193dc stable

subrepo: open files in 'rb' mode to read exact data in (issue3926)

Before this patch, "subrepo._calcfilehash()" opens files by "open()"
without any mode specification. This implies "text mode" on Windows.

When target file contains '\x00' byte, "read()" in "text mode" reads
file contents in without data after '\x00'.

This causes invalid SHA1 hash calculation in "subrepo._calcfilehash()".

This patch opens files in 'rb' mode to read exact data in.

  $ hg init
  $ echo This is file a1 > a
  $ echo This is file b1 > b
  $ hg add a b
  $ hg commit -m "commit #0"
  $ echo This is file b22 > b
  $ hg commit -m "comment #1"
  $ hg update 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ rm b
  $ hg commit -A -m "comment #2"
  removing b
  created new head
  $ hg update 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg update
  abort: crosses branches (merge branches or update --check to force update)
  [255]
  $ rm b
  $ hg update -c
  abort: uncommitted local changes
  [255]
  $ hg revert b
  $ hg update -c
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mv a c

In theory, we shouldn't need the "-y" below, but it prevents this test
from hanging when "hg update" erroneously prompts the user for "keep
or delete".

Should abort:

  $ hg update -y 1
  abort: crosses branches (merge branches or use --clean to discard changes)
  [255]
  $ mv c a

Should succeed:

  $ hg update -y 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved