view tests/test-debugrename.t @ 40387:f1a39128da95

filelog: add a hasnode() method (API)

Missing in the file storage interface is the ability to query whether
a specified value is a known node.

This commit defines that interface member and implements it on the
revlog and sqlite file stores.

Storage unit tests have been added.

The revlog implementation is a bit more complicated because index lookups
don't consistently raise the same exception. For SQLite, we can simply look
for a key in a dict.

Differential Revision: https://phab.mercurial-scm.org/D5163

  $ hg init
  $ echo a > a
  $ hg ci -Am t
  adding a

  $ hg mv a b
  $ hg ci -Am t1
  $ hg debugrename b
  b renamed from a:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3

  $ hg mv b a
  $ hg ci -Am t2
  $ hg debugrename a
  a renamed from b:37d9b5d994eab34eda9c16b195ace52c7b129980

  $ hg debugrename --rev 1 b
  b renamed from a:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3