AutoYADM commit: 2025-06-09 19:11:37

.config/kak/scripts/lsp-diags.py

@@ -1,5 +1,7 @@
 #!/usr/bin/env python
 
+# pyright: strict, reportUnusedCallResult=false
+
 import sys
 import os
 import tempfile
@@ -64,6 +66,27 @@ def gen_kakoune_output(inp: str, outp: str) -> str:
     return f"declare_option -hidden str diagpipe_in {inp}\ndeclare_option -hidden str diagpipe_out {outp}"
 
 
+def daemonize():
+    # exit parent
+    if os.fork() > 0:
+        sys.exit(0)
+    # new session
+    os.setsid()
+    if os.fork() > 0:
+        # exit first child
+        sys.exit(0)
+    _ = sys.stdin.close()
+    _ = sys.stdout.flush()
+    _ = sys.stderr.flush()
+
+    # redirect IO to /dev/null
+    with open("/dev/null", "rb", 0) as dn:
+        os.dup2(dn.fileno(), sys.stdin.fileno())
+    with open("/dev/null", "ab", 0) as dn:
+        os.dup2(dn.fileno(), sys.stdout.fileno())
+        os.dup2(dn.fileno(), sys.stderr.fileno())
+
+
 def main():
     # create unique directory and names
     fifo_dir = tempfile.mkdtemp(prefix="diagpipe-")
@@ -76,8 +99,10 @@ def main():
 
     _ = atexit.register(lambda: cleanup(in_path, out_path, fifo_dir))
 
-    print(in_path, flush=True)
-    print(out_path, flush=True)
+    output = gen_kakoune_output(in_path, out_path)
+    print(output)
+    sys.stdout.flush()
+    daemonize()
 
     with open(in_path, "r") as infile, open(out_path, "w") as outfile:
         diagnostics = []