work-in-progress towards integrating the compiler service

autoload/nimrod_vim.py

@@ -0,0 +1,87 @@
+import threading, Queue, subprocess, signal, os
+
+try:
+  import vim
+except ImportError:
+  class Vim:
+    def command(self, x):
+      print("Executing vim command: " + x)
+  
+  vim = Vim()
+
+def disable_sigint():
+  # Ignore the SIGINT signal by setting the handler to the standard
+  # signal handler SIG_IGN.
+  signal.signal(signal.SIGINT, signal.SIG_IGN)
+
+class NimrodThread(threading.Thread):
+  def __init__(self):
+    super(NimrodThread, self).__init__()
+    self.tasks = Queue.Queue()
+    self.responses = Queue.Queue()
+    self.nim = subprocess.Popen(
+       ["nimrod", "serve", "--server.type:stdin", "nimrod.nim"],
+       cwd = "/Users/zahary/Projects/nim/compiler",
+       stdin = subprocess.PIPE,
+       stdout = subprocess.PIPE,
+       stderr = subprocess.STDOUT,
+       universal_newlines = True,
+       preexec_fn = disable_sigint,
+       bufsize = 1)
+ 
+  def postNimCmd(self, msg, async = True):
+    self.tasks.put((msg, async))
+    if not async:
+      return self.responses.get()
+
+  def run(self):
+    while True:
+      (msg, async) = self.tasks.get()
+
+      if msg == "quit":
+        self.nim.terminate()
+        break
+
+      self.nim.stdin.write(msg + "\n")
+      result = ""
+      
+      while True:
+        line = self.nim.stdout.readline()
+        result += line
+        if line == "\n":
+          if not async:
+            self.responses.put(result)
+          else:
+            self.asyncOpComplete(msg, result)
+          break
+        
+
+def vimEscapeExpr(expr):
+  return expr.replace("\\", "\\\\").replace('"', "\\\"").replace("\n", "\\n")
+
+class NimrodVimThread(NimrodThread):
+  def asyncOpComplete(self, msg, result):
+    cmd = "/usr/local/bin/mvim --remote-expr 'NimrodAsyncCmdComplete(1, \"" + vimEscapeExpr(result) + "\")'"
+    os.system (cmd)
+
+projects = {}
+
+log = open("/tmp/nim-log.txt", "w")
+
+def execNimCmd(project, cmd, async = True):
+  target = None
+  if projects.has_key(project):
+    target = projects[project]
+  else:
+    target = NimrodVimThread()
+    projects[project] = target
+    target.start()
+  
+  result = target.postNimCmd(cmd, async)
+  if result != None:
+    log.write(result)
+    log.flush()
+  
+  if not async:
+    vim.command('let l:py_res = "' + vimEscapeExpr(result) + '"')
+