Initial commit

.config/lite-xl/plugins/lintplus/liteipc.lua

@@ -0,0 +1,66 @@
+-- liteipc - async IPC for lite
+
+local liteipc = {}
+
+local Process = {}
+Process.__index = Process
+
+function liteipc.start_process(args, cwd)
+  local proc = setmetatable({
+    popen = process.start(args, {cwd = cwd}),
+    read_from = ""
+  }, Process)
+  return proc
+end
+
+function Process.poll(self, callback)
+  local line = ""
+  local read = nil
+
+  while self.read_from == "" and self.popen:returncode() == nil do
+    local stderr = self.popen:read_stderr(1)
+    local stdout = self.popen:read_stdout(1)
+    local out = nil
+    if stderr ~= nil and stderr ~= "" then
+      out = stderr
+      self.read_from = "stderr"
+    elseif stdout ~= nil and stdout ~= "" then
+      out = stdout
+      self.read_from = "stdout"
+    end
+    if out ~= nil then
+      if out ~= "\n" then
+        line = line .. out
+      end
+      break
+    end
+  end
+
+  while true do
+    if self.read_from == "stderr" then
+      read = self.popen:read_stderr(1)
+    else
+      read = self.popen:read_stdout(1)
+    end
+    if read == nil or read == "\n" then
+      if line ~= "" then callback(line) end
+      break
+    else
+      line = line .. read
+    end
+  end
+
+  if not self.popen:running() and read == nil then
+    local exit = "exit"
+    local retcode = self.popen:returncode()
+    if retcode ~= 1 and retcode ~= 0 then
+      exit = "signal"
+    end
+    local errmsg = process.strerror(retcode)
+    return exit, retcode, errmsg
+  end
+
+  return nil, nil, nil
+end
+
+return liteipc