view tests/test-sparse-clone.t @ 33766:4c706037adef

wireproto: overhaul iterating batcher code (API)

The remote batching code is difficult to read. Let's improve it.

As part of the refactor, the future returned by method calls on
batchiter() instances is now populated. However, you still need to
consume the results() generator for the future to be set.  But at
least now we can stuff the future somewhere and not have to worry
about aligning method call order with result order since you can
use a future to hold the result.

Also as part of the change, we now verify that @batchable generators
yield exactly 2 values. In other words, we enforce their API.

The non-iter batcher has been unused since b6e71f8af5b8. And to my
surprise we had no explicit unit test coverage of it! test-batching.py
has been overhauled to use the iterating batcher.

Since the iterating batcher doesn't allow non-batchable method
calls nor local calls, tests have been updated to reflect reality.
The iterating batcher has been used for multiple releases apparently
without major issue. So this shouldn't cause alarm.

.. api::

   @peer.batchable functions must now yield exactly 2 values

Differential Revision: https://phab.mercurial-scm.org/D319

test sparse

  $ cat >> $HGRCPATH << EOF
  > [ui]
  > ssh = python "$RUNTESTDIR/dummyssh"
  > username = nobody <[e-mail]>
  > [extensions]
  > sparse=
  > purge=
  > strip=
  > rebase=
  > EOF

  $ hg init myrepo
  $ cd myrepo
  $ echo a > index.html
  $ echo x > data.py
  $ echo z > readme.txt
  $ cat > webpage.sparse <<EOF
  > [include]
  > *.html
  > EOF
  $ cat > backend.sparse <<EOF
  > [include]
  > *.py
  > EOF
  $ hg ci -Aqm 'initial'
  $ cd ..

Verify local clone with a sparse profile works

  $ hg clone --enable-profile webpage.sparse myrepo clone1
  updating to branch default
  warning: sparse profile 'webpage.sparse' not found in rev 000000000000 - ignoring it
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd clone1
  $ ls
  index.html
  $ cd ..

Verify local clone with include works

  $ hg clone --include *.sparse myrepo clone2
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd clone2
  $ ls
  backend.sparse
  webpage.sparse
  $ cd ..

Verify local clone with exclude works

  $ hg clone --exclude data.py myrepo clone3
  updating to branch default
  4 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd clone3
  $ ls
  backend.sparse
  index.html
  readme.txt
  webpage.sparse
  $ cd ..

Verify sparse clone profile over ssh works

  $ hg clone -q --enable-profile webpage.sparse ssh://user@dummy/myrepo clone4
  warning: sparse profile 'webpage.sparse' not found in rev 000000000000 - ignoring it
  $ cd clone4
  $ ls
  index.html
  $ cd ..