This requirements format does not conform to PEP-508. Currently the
extras specified like this work by accident (because _strip_extras()
also parses them). The version checks end up being done with a
misparsed version '1.0[extra]' -- this is not changed in this commit.
Add deprecation warning and fix the corresponding resolver test. Add a
command line test.
Note that we really only check that the Requirement has SpecifierSet
with a specifier that ends in a ']'. A valid version number cannot
contain ']' and no wheels currently on pypi have versions ending in ']'.
Now we rely solely on the list of RECORD-like paths derived from the
filesystem, and can easily trade out the implementation for one that
comes from the wheel file directly.
At the beginning of our wheel processing we are going to have the list
of contained files. By splitting this into its own function, and
deriving it from disk in the same way it will appear in the zip, we can
incrementally refactor our approach using the same interface that will
be available at that time.
We start with the root-scheme paths (that end up in lib_dir) first.
When we start processing files directly from the wheel, all we will have
are the files with their zip path (which should match a `RECORD`
entry). Separating this from the source file path (used for copying)
and annotating it with our `RecordPath` type makes it clear what the
format of this public property is, and that it should match what is in
`RECORD`.
We always pass a file path to this function, so assert as much. We want
the return type to be consistent so we can assign the result to
non-Optional types.
"getting files" is one of the places that requires files to be on disk.
By extracting this out of `clobber` we can make it simpler and then
trade it out for a zip-based implementation.
Hiding the file-specific implementation we currently use will let us
trade out the implementation for a zip-backed one later. We can also use
this interface to represent the other kinds of files that we have to
generate as part of wheel installation.
We use a Protocol instead of a base class because there's no need for
shared behavior right now, and using Protocol is less verbose.
By removing this dependency of the "file installation" part of `clobber`
on the "file finding" part of `clobber`, we can more easily factor out
the "file installation" part.
Dropping the top-level directory creation allows us to make the
processing completely dependent on files to be installed, and not on the
top-level directory they happen to be installed in.
We already create the parent directory in the loop below, so this call
should be redundant for files that get installed.
