This effectively reverts
https://github.com/deltachat/deltachat-core-rust/pull/964 for chat.rs,
which in that PR was thought to fix something. So maybe something is
still broken? But after improving tests the previous code seems to be
correct.
- Update Python bindings to not always use dc_prepare_msg path when
sending messages with attachements. When using dc_prepare_msg the
blobs need to be created in the blobdir since they will not get
copied and many tests where not doing this.
- Add a test that ensures that calling dc_prepare_msg with a
file **not** in the blobdir fails.
- Add a test that ensures that calling dc_send_msg directly with a
file **not** in the blobdir copies the file to the blobdir. This
test cheats a little by knowing what the filename in the blobdir
will be which is implementation-dependent and thus a bit brittle.
But for now it proves correct behaviour so let's go with this.
- Improve the test_forward_increation test to ensure that the
in-creation file only has it's final state before calling
dc_send_msg. This checks the correct file data is sent out and not
the preparing data, this fails with the chat.rs changes in
#964 (reverted here to make this work again). Also fix the test to
actually create the in-creation file in the blobdir.
- Fix test_send_file_twice_unicode_filename_mangling to not use
in-creation. It was not creating it's files in the blobdir and that
is an error when using in-creation and it didn't seem it was trying
to test something about the in-creation logic (which is tested in
test_increation.py already).
- Fix Message._msgtate code which presumably was not used before?
- Rename `BlobObject::create_from_path` to
`BlobObject::new_from_path`. All the `BlobObject::create*` calls
now always create new files which is much more consistent. APIs
should do what is obious.
- remove usage of "attr.s" across the code
- make msg.set_file() copy a file into blobdir if it isn't already
- regroup tests
- add set_draft/get_draft API
* import python, try to adapt for rust
* add missing wrapper functions
* - try to write up how to build python bindings
- strike some unused functions from deltachat.h
* adjustments to make tox work
* try to run circle-ci with python build
* don't do docs
* running cargo test as well
* don't run cargo test anymore, that's done in other ci jobs
* also build docs
* don't run doxygen anymore
* subst C with Rust
* a try to get better wheels
Closes#41
