add direct integration with libuv instead of going through termopen, also implement a UI (#79)

* add direct integration with libuv instead of going through termopen, also implement a UI

* alleged free perf boosts

yo that's free cycles

1 files changed, 25 insertions, 16 deletions

diff --git a/lua/nvim-lsp-installer/installers/init.lua b/lua/nvim-lsp-installer/installers/init.lua
index f394a33d..991c773e 100644
--- a/lua/nvim-lsp-installer/installers/init.lua
+++ b/lua/nvim-lsp-installer/installers/init.lua
@@ -1,48 +1,57 @@
 local platform = require "nvim-lsp-installer.platform"
+local Data = require "nvim-lsp-installer.data"
 
 local M = {}
 
-function M.compose(installers)
+function M.join(installers)
     if #installers == 0 then
-        error "No installers to compose."
+        error "No installers to join."
     end
 
-    return function(server, callback)
+    return function(server, callback, context)
         local function execute(idx)
-            installers[idx](server, function(success, result)
+            installers[idx](server, function(success)
                 if not success then
                     -- oh no, error. exit early
-                    callback(success, result)
-                elseif installers[idx - 1] then
+                    callback(success)
+                elseif installers[idx + 1] then
                     -- iterate
-                    execute(idx - 1)
+                    execute(idx + 1)
                 else
                     -- we done
-                    callback(success, result)
+                    callback(success)
                 end
-            end)
+            end, context)
         end
 
-        execute(#installers)
+        execute(1)
     end
 end
 
+-- much fp, very wow
+function M.compose(installers)
+    return M.join(Data.list_reverse(installers))
+end
+
 function M.when(platform_table)
-    return function(server, callback)
+    return function(server, callback, context)
         if platform.is_unix() then
             if platform_table.unix then
-                platform_table.unix(server, callback)
+                platform_table.unix(server, callback, context)
             else
-                callback(false, ("Unix is not yet supported for server %q."):format(server.name))
+                context.stdio_sink.stderr(("Unix is not yet supported for server %q."):format(server.name))
+                callback(false)
             end
         elseif platform.is_win() then
             if platform_table.win then
-                platform_table.win(server, callback)
+                platform_table.win(server, callback, context)
             else
-                callback(false, ("Windows is not yet supported for server %q."):format(server.name))
+                context.stdio_sink.stderr(("Windows is not yet supported for server %q."):format(server.name))
+                callback(false)
             end
         else
-            callback(false, "installers.when: Could not find installer for current platform.")
+            context.sdtio_sink.stderr "installers.when: Could not find installer for current platform."
+            callback(false)
         end
     end
 end