feat: first draft

lua/oil/shell.lua

@@ -0,0 +1,40 @@
+local M = {}
+
+M.run = function(cmd, callback)
+  local stdout
+  local stderr = {}
+  local jid = vim.fn.jobstart(cmd, {
+    stdout_buffered = true,
+    stderr_buffered = true,
+    on_stdout = function(j, output)
+      stdout = output
+    end,
+    on_stderr = function(j, output)
+      stderr = output
+    end,
+    on_exit = vim.schedule_wrap(function(j, code)
+      if code == 0 then
+        callback(nil, stdout)
+      else
+        local err = table.concat(stderr, "\n")
+        if err == "" then
+          err = "Unknown error"
+        end
+        callback(err)
+      end
+    end),
+  })
+  local exe
+  if type(cmd) == "string" then
+    exe = vim.split(cmd, "%s+")[1]
+  else
+    exe = cmd[1]
+  end
+  if jid == 0 then
+    callback(string.format("Passed invalid arguments to '%s'", exe))
+  elseif jid == -1 then
+    callback(string.format("'%s' is not executable", exe))
+  end
+end
+
+return M