To find the buffer corresponding to URIs reported by LSP the
HandleLSPDiagnostics() method uses the built-in bufnr() function. From
the documentation we learn that the first parameter of bufnr() is
an expression, not a path.
EclipseLSP will report project wide errors (e.g. gradle errors) that are
not related to any actual source file with an URI that corresponds to the
project root folder, e.g:
file:///home/username/Projects/gradle-simple
This URI will match any open buffer of files within the project root
hiearchy, thus project-wide errors appear as part of every file within
the project, e.g:
file:///home/username/Projects/gradle-simple/src/main/java/Hello.java
To fix this, this MR adds '^' to the beginning and '$' at the end of the
URI path to force an exact match. This is how is recommended in vim
help (see :h bufname).
We were setting the -data parameter to the project root but this caused
the language server to fail initialization and synch of gradle
dependencies. As consequence ALE failed to work fully on gradle
projects.
This fix sets the workspace to the parent folder of the project root.
Normally this corresponds to the correct Eclipse workspace path.
When this is not the case, this fix also allows users to explicitly set
the absolute path to the workspace via configuration variable.
* Search eclipselsp jar and config files within system package path
* Allow setting an alternate eclipselsp configuration directory
* Add test for ale_java_eclipselsp_config_path
The official configuration files for `flake8` are `.flake8`, `tox.ini`,
and `setup.cfg`.
After investigation, it is safe to remove `flake8.cfg` as it appears to
only exist as a typo in other tooling documentation (e.g.,
`python-language-server`).
Even though no linters automatically read `.flake8rc`, it is kept in
case projects may be using it for detecting the projects root directory.
