Summary:
Completes T3859. This implements a C# linter for Arcanist, which in turn uses `cslint` from `cstools` to actually perform the linting. `cslint` internally uses StyleCop in addition to it's own lint rules.
Unlike other linters, C# is a compiled language, which means that the StyleCop integration must be aware of the full project. To this end, there is the `discovery` setting in `.arclint`. This allows users to define mappings between C# files and the projects they belong to. Here is an configuration for `.arclint` (and is the one we use):
```
{
"linters": {
"csharp": {
"type": "csharp",
"include": "(\\.cs$)",
"binary": "cstools/cslint/bin/Debug/cslint.exe",
"discovery": {
"([^/]+)/(.*?)\\.cs": [
"$1/$1.Linux.csproj"
],
"([^\\\\]+)\\\\(.*?)\\.cs": [
"$1\\$1.Windows.csproj"
]
}
}
}
}
```
Test Plan: Tested under both Linux and Windows. Changed some files, ran `arc lint` and it all worked correctly.
Reviewers: epriestley
Reviewed By: epriestley
CC: Korvin, aran, jamesr
Maniphest Tasks: T3859
Differential Revision: https://secure.phabricator.com/D7170
