Added option to provide a custom config file to the lsp. (#460)

* Added option to provide a custom config file to the lsp.

* Simplified lsp loading routine with anyhow

* Moved config to language.toml

* Fixed test case

* Cargo fmt

* Revert now-useless changes

* Renamed custom_config to config

Co-authored-by: Cor <prive@corpeters.nl>

1 files changed, 10 insertions, 0 deletions

diff --git a/languages.toml b/languages.toml
index 204a5987..ee495635 100644
--- a/languages.toml
+++ b/languages.toml
@@ -5,6 +5,16 @@ injection-regex = "rust"
 file-types = ["rs"]
 roots = []
 auto-format = true
+config = """
+{
+  "cargo": {
+    "loadOutDirsFromCheck": true
+  },
+  "procMacro": {
+    "enable": false
+  }
+}
+"""
 
 language-server = { command = "rust-analyzer" }
 indent = { tab-width = 4, unit = "    " }