... instead of hard-coding "make".
First, we check the value of `$MAKE`. If it's unset, we look for `gmake`
in the `$PATH`. If it's missing, we assume it's `make`.
This fixes the testsuite where GNU Make is installed as `gmake`.
If cowboy_static is initialized with `{priv_file, ...}` or `{priv_dir,
...}`, it is now able to read files from Erlang application .ez
archives.
When serving a file from an archive, the #file_info{} comes from the
archive, not the contained file, except for the size and type. The
erl_prim_loader module is used to read the latter's #file_info{} and the
actual file content (ie. sendfile(2) is not used in this case).
The {data, IsFin, Data} uses IsFin to indicate whether this
is the last chunk, while chunked transfer-encoding uses the
length of Data, and ends when it is 0. We must therefore not
send chunks with empty data.
The stream handlers can be specified using the protocol
option 'stream_handlers'. It defaults to [cowboy_stream_h].
The cowboy_stream_h module currently does not forward the
calls to further stream handlers. It feels like an edge
case; usually we'd want to put our own handlers between
the protocol code and the request process. I am therefore
going to focus on other things for now.
The various types and specifications for stream handlers
have been updated and the cowboy_stream module can now
be safely used as a behavior. The interface might change
a little more, though.
This commit does not include tests or documentation.
They will follow separately.
In particular the cowboy_sub_protocol is subject to change soon.
Also the cowboy_stream behavior is going to be left hidden in
this release and enabled when it becomes easier to chain them.
Correct expected return type from `no_call` to `undefined` in
if_modified_since when last_modified callback is not defined. Add an
http_SUITE test to catch regressions.
