fix CLI

trash/proc2log

@@ -0,0 +1,98 @@
+#!/usr/bin/env python3
+
+# proc2log: new processes monitor
+
+import os
+import argparse
+from time import sleep
+
+parser = argparse.ArgumentParser()
+parser.add_argument(
+    '-p', 
+    '--period', 
+    help='peroid in seconds between proc checks, default value: 0.1', 
+    default=0.1, 
+    type=float
+    )
+args = parser.parse_args()
+period = args.period
+
+unknown_name = '<unknown>'
+
+
+# получение чистого пид сета
+def foo():
+    proc_list = os.listdir('/proc')
+    proc_set = set()
+    for i in proc_list:
+        if i.isdigit() != True:
+            continue
+        proc_set.add(i)
+    return proc_set
+
+
+# имя через пид
+def pid_to_name(pid):
+    try:
+        with open('/proc/' + pid + '/status') as f:
+            for line in f:
+                return line[:-1].split('\t')[1]
+    except FileNotFoundError:
+        return unknown_name
+
+
+# печать одного пида и имени
+def print_pid(pid):
+
+    try:
+        with open('/proc/' + pid + '/status') as f:
+            for lineno, line in enumerate(f):
+                name = line[:-1].split('\t')[1]
+                print('+ {}, {}'.format(pid, name))
+                pid_dict[pid] = name
+                if lineno >= 0:
+                    break
+
+    except FileNotFoundError:
+        name = pid_dict.pop(pid, unknown_name)
+        print('                         - {}, {}'.format(pid, name))
+
+    except ProcessLookupError:
+        name = pid_dict.pop(pid, unknown_name)
+        print('                         - {}, {}'.format(pid, name))
+
+
+# нахождение и печать дельт сетов
+def delta(old_set):
+
+    new_set = set(os.listdir('/proc'))
+    plus = new_set - old_set
+    minus = old_set - new_set
+
+    if len(plus) > 0:
+        for pid in plus:
+            print_pid(pid)
+
+    if len(minus) > 0:
+        for pid in minus:
+            print_pid(pid)
+
+    return new_set
+
+
+print('proc2log started with period {} seconds'.format(period))
+print('+ PID, NAME              - PID, NAME')
+
+# первичное наполнение словаря значениями pid:name для печати имён исчезнувших процессов
+pid_dict = dict()
+for pid in foo():
+    pid_dict[pid] = pid_to_name(pid)
+
+pid_set = set(os.listdir('/proc'))
+try:
+    while True:
+        pid_set = delta(pid_set)
+        sleep(period)
+except KeyboardInterrupt:
+    exit()
+