async: raise errors instead of returning pcall-style (#521)

2 files changed, 7 insertions, 3 deletions

diff --git a/lua/nvim-lsp-installer/core/async/init.lua b/lua/nvim-lsp-installer/core/async/init.lua
index 1dd2c138..e9c753d2 100644
--- a/lua/nvim-lsp-installer/core/async/init.lua
+++ b/lua/nvim-lsp-installer/core/async/init.lua
@@ -17,7 +17,7 @@ function Promise:_wrap_resolver_cb(success, cb)
             return
         end
         self.has_resolved = true
-        cb(success, ...)
+        cb(success, { ... })
     end
 end
 
@@ -26,7 +26,11 @@ function Promise:__call(callback)
 end
 
 local function await(resolver)
-    return co.yield(Promise.new(resolver))
+    local ok, value = co.yield(Promise.new(resolver))
+    if not ok then
+        error(value[1], 2)
+    end
+    return unpack(value)
 end
 
 local function table_pack(...)
diff --git a/lua/nvim-lsp-installer/process.lua b/lua/nvim-lsp-installer/process.lua
index 87a4b950..07d51c32 100644
--- a/lua/nvim-lsp-installer/process.lua
+++ b/lua/nvim-lsp-installer/process.lua
@@ -143,7 +143,7 @@ function M.spawn(cmd, opts, callback)
                 end
             end
             check:stop()
-            callback(successful)
+            callback(successful, exit_code)
         end)
 
         log.fmt_debug("Job pid=%s exited with exit_code=%s, signal=%s", pid_or_err, exit_code, signal)