Convert filetypes to language IDs

internal/buffer/buffer.go

@@ -411,7 +411,7 @@ func NewBuffer(r io.Reader, size int64, path string, startcursor Loc, btype BufT
 // initializes an LSP server if possible, or calls didOpen on an existing
 // LSP server in this workspace
 func (b *Buffer) lspInit() {
-	ft := b.Settings["filetype"].(string)
+	ft := lsp.Filetype(b.Settings["filetype"].(string))
 	l, ok := lsp.GetLanguage(ft)
 	if ok && l.Installed() {
 		b.Server = lsp.GetServer(l, gopath.Dir(b.AbsPath))

internal/lsp/languages.go

@@ -0,0 +1,20 @@
+package lsp
+
+// mappings for when micro filetypes don't match LSP language identifiers
+var languages = map[string]string{
+	"batch":           "bat",
+	"c++":             "cpp",
+	"git-rebase-todo": "git-rebase",
+	"html4":           "html",
+	"html5":           "html",
+	"python2":         "python",
+	"shell":           "shellscript",
+	// "tex": "latex",
+}
+
+func Filetype(ft string) string {
+	if l, ok := languages[ft]; ok {
+		return l
+	}
+	return ft
+}

internal/lsp/servers_toml.go

@@ -76,4 +76,13 @@ install = [["npm", "install", "-g", "vim-language-server"]]
 command = "purescript-language-server"
 args = ["--stdio"]
 install = [["npm", "install", "-g", "purescript-language-server"]]
+
+[language.verilog]
+command = "svls"
+args = []
+install = [["cargo", "install", "svls"]]
+
+[language.d]
+command = "serve-d"
+args = []
 `