Daemon fully working. Log still spamming on stderr.

bot_z/cli.py

@@ -3,7 +3,9 @@
 """Console script to control the bot_z daemon"""
 
 import errno
+import logging
 import os
+import sys
 import time
 import typing as T
 
@@ -12,9 +14,22 @@ import lockfile
 
 from bot_z.zdaemon import daemon_process, Fifo
 
+logger = logging.getLogger(__name__)
+logger.setLevel(logging.INFO)
+sh = logging.StreamHandler(stream=sys.stdout)
+sh.setFormatter(logging.Formatter("%(message)s"))
+logger.addHandler(sh)
+
 
 @click.group()
 @click.option("-d", "--debug", is_flag=True, default=False, help="Enable debug mode.")
+@click.option(
+    "-v",
+    "--verbose",
+    is_flag=True,
+    default=False,
+    help="More verbose output from this cli.",
+)
 @click.option(
     "-f",
     "--fifo",
@@ -30,12 +45,17 @@ from bot_z.zdaemon import daemon_process, Fifo
     help="The working dir where to launch the daemon and where the lockfile is put.",
 )
 @click.pass_context
-def cli(ctx: click.Context, debug: bool, fifo: str, workdir: str) -> None:
+def cli(
+    ctx: click.Context, debug: bool, verbose: bool, fifo: str, workdir: str
+) -> None:
     """
     Group cli.
     """
+    if verbose:
+        logger.setLevel(logging.DEBUG)
     ctx.ensure_object(dict)
     ctx.obj["debug"] = debug
+    ctx.obj["verbose"] = verbose
     ctx.obj["fifo"] = fifo
     ctx.obj["workdir"] = workdir
 
@@ -85,7 +105,8 @@ def start_command(
     """
     Invokes daemon_process for the first time.
     """
-    lf = lockfile.FileLock(os.path.join(ctx.obj["workdir"], "bot_z.lock"))
+    lf = lockfile.FileLock(os.path.join(ctx.obj["workdir"], "bot_z"))
+    logger.debug("Daemon starting. Lockfile: %s", lf)
     proxy_tuple = None
     if proxy:
         proxy_tuple = tuple(proxy.split(":"))
@@ -103,6 +124,7 @@ def start_command(
         debug=ctx.obj["debug"],
         foreground=foreground,
     )
+    logger.info("Daemon started.")
 
 
 @cli.command("stop")
@@ -111,9 +133,11 @@ def stop_command(ctx: click.Context):
     """
     Writes on the fifo. Invokes the stop.
     """
+    logger.debug("Sending the stop command down the pipe: %s", ctx.obj["fifo"])
     with open(ctx.obj["fifo"], "w") as fifo:
         fifo.write("stop")
         fifo.flush()
+    logger.info("Stop sent.")
 
 
 @cli.command("reload")
@@ -122,9 +146,11 @@ def reload_command(ctx: click.Context):
     """
     Writes on the fifo. Invokes the reload.
     """
+    logger.debug("Sending the reload command down the pipe: %s", ctx.obj["fifo"])
     with open(ctx.obj["fifo"], "w") as fifo:
         fifo.write("reload")
         fifo.flush()
+    logger.info("Reload sent.")
 
 
 @cli.command("status")
@@ -134,14 +160,18 @@ def status_command(ctx: click.Context):
     Writes on the fifo. Queries the status.
     """
     rfifo_path = os.path.join(ctx.obj["workdir"], "rfifo-{}".format(id(ctx)))
+    logger.debug("Awaiting response on fifo: %s", rfifo_path)
     try:
         os.mkfifo(rfifo_path)
+        logger.debug("Response fifo newly created.")
     except OSError as err:
         if err.errno != errno.EEXIST:
             raise
+        logger.debug("Response fifo exists.")
 
     with Fifo(ctx.obj["fifo"], "w") as fifo:
         fifo.write("status|{}".format(rfifo_path))
+    logger.debug("Awaiting response...")
     done = False
     while not done:
         try:
@@ -149,9 +179,9 @@ def status_command(ctx: click.Context):
                 resp = rfifo.read()
             done = True
         except FileNotFoundError as e:
-            print(e)
+            logger.warning("File not found: %s", e)
             pass
-    print(resp)
+    logger.info(resp)
 
 
 if __name__ == "__main__":

bot_z/zdaemon.py

@@ -137,6 +137,7 @@ def daemon_process(
 class Fifo(object):
     """
     Iterator to continuously read the command fifo.
+    Supports also write operations if opened with mode="r".
     """
 
     def __init__(self, fifopath: str, mode: str = "r") -> None: