feat(foam_ls): fallback root directories #4085

Although not common, the associated LSP (foam_ls) can handle single files just fine.
Fallback to git root, or the file's folder.

1 files changed, 10 insertions, 3 deletions

diff --git a/lsp/foam_ls.lua b/lsp/foam_ls.lua
index cff7c03e..636b0660 100644
--- a/lsp/foam_ls.lua
+++ b/lsp/foam_ls.lua
@@ -13,10 +13,17 @@ return {
   filetypes = { 'foam', 'OpenFOAM' },
   root_dir = function(bufnr, on_dir)
     local fname = vim.api.nvim_buf_get_name(bufnr)
-    on_dir(vim.iter(vim.fs.parents(fname)):find(function(path)
+    for path in vim.fs.parents(fname) do
       if vim.uv.fs_stat(path .. '/system/controlDict') then
-        return path
+        on_dir(path)
+        return
       end
-    end))
+    end
+    local git_root = vim.fs.root(bufnr, { '.git' })
+    if git_root then
+      on_dir(git_root)
+      return
+    end
+    on_dir(vim.fs.dirname(fname))
   end,
 }