view tests/test-manifest.t @ 19812:5d6cfdc38a3d

mq: simplifies the refresh hint in checklocalchanges

The `checklocalchanges` function in the `mq.queue` class takes a `refresh` argument that
changes the error message of raised exception. When refresh is
`True` the exception message is "local changes found, refresh first" otherwise,
the message is just "local changes found".

This changeset is the first of a series that extract `strip` into a standalone
extension (as discussed in issue3824). This `checklocalchanges` function is
indirectly used by the strip command. But in a standalone strip extension the
concept of "refresh first" has no sense. In practice, When used in the context
of the strip commands `refresh`'s value is always `False`.

So my final goal is a be able to extract the `checklocalchanges` logic in a
standalone extension but to keep the part related to "refresh first" in the mq
extension. However the refresh handling is deeply entangled into the
`checklocalchanges` code. It is handled as low a possible at the point we raise
the exception.

So we moves handling of refresh upper in the `checklocalchanges` code. This will
allow the extraction of a simple version in the strip extension while mq can
still inject its logic when needed.

Two helper functions `localchangesfound` and `localchangedsubreposfound` died in
the process they are replaced by simple raise lines.

Source bundle was generated with the following script:

# hg init
# echo a > a
# ln -s a l
# hg ci -Ama -d'0 0'
# mkdir b
# echo a > b/a
# chmod +x b/a
# hg ci -Amb -d'1 0'

  $ hg init
  $ hg -q pull "$TESTDIR/bundles/test-manifest.hg"

The next call is expected to return nothing:

  $ hg manifest

  $ hg co
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg manifest
  a
  b/a
  l

  $ hg manifest -v
  644   a
  755 * b/a
  644 @ l

  $ hg manifest --debug
  b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 644   a
  b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 755 * b/a
  047b75c6d7a3ef6a2243bd0e99f94f6ea6683597 644 @ l

  $ hg manifest -r 0
  a
  l

  $ hg manifest -r 1
  a
  b/a
  l

  $ hg manifest -r tip
  a
  b/a
  l

  $ hg manifest tip
  a
  b/a
  l

  $ hg manifest --all
  a
  b/a
  l

The next two calls are expected to abort:

  $ hg manifest -r 2
  abort: unknown revision '2'!
  [255]

  $ hg manifest -r tip tip
  abort: please specify just one revision
  [255]