mrozo · May 9, 2019 19:03 · May 9, 2019
diff --git a/tmux_welcome_screen.py b/tmux_welcome_screen.py
@@ -0,0 +1,91 @@
+#!/bin/env/python3
+import calendar
+import time
+from subprocess import check_output
+import os
+
+DISKS = (' /home',' /', ' /home/windows', ' /media/backup')
+
+TMUX_CHEATSHEET = """                        │
+Sessions                │  Panes (splits)
+:new<CR>  new session   │      %  vertical split
+    s  list sessions    │      "  horizontal split
+    $  name session     │      o  swap panes
+Windows (tabs)          │      q  show pane numbers
+    c  create window    │      x  kill pane
+    w  list windows     │      +  break pane into window (e.g. to select text by
+    n  next window      │         mouse to copy)
+    p  previous window  │      -  restore pane from window
+    f  find window      │      ⍽  space - toggle between layouts
+    ,  name window      │      q (Show pane numbers, when the numbers show up
+    &  kill window      │        type the key to goto that pane)
+                        │      { (Move the current pane left)
+                        │      } (Move the current pane right)
+                        │      z toggle pane zoom
+                        │"""
+
+rows, columns = os.popen('stty size', 'r').read().split()
+rows = int(rows)
+columns = int(columns)
+
+
+def print_calendar():
+  month=int(time.strftime("%m"))
+  year=int(time.strftime("%y"))
+  current = calendar.month(year,month)
+  prev_month=month-1 if month > 2 else 12
+  prev_year=year if prev_month != 12 else year-1
+  next_month=((month)%12)+1
+  next_year=year if next_month!= 1 else year+1
+
+  today=time.strftime(u" %e ")
+  today_marked = time.strftime(
+              u"\033[7m\033[7;30;46m\033[0m\033[1;30;46m%e\033[7m\033[1;30;46m\033[0m"
+          )
+  current = current.replace(today, today_marked).split('\n')
+  previous = calendar.month(prev_year, prev_month).split('\n')
+  next = calendar.month(next_year, next_month).split('\n')
+
+  parts = [previous, current, next]
+  line_len = max(map(lambda line:len(line), next))
+  parts = map(lambda part:map(lambda line_part: line_part.ljust(line_len,' '),part), parts)
+  return ('\n'.join(map(lambda p,c,n: ' '*(int((80-((3*line_len)+14))/2)) + ('   │   '.join([p,c,n])), *parts)))
+
+
+def print_disks_report():
+  out_str = ''
+  disks = filter(
+        lambda line: line.endswith(DISKS),
+        check_output(['df','-h']).decode("UTF-8").split('\n')
+    )
+  disks = map(lambda line: line.split(' '), disks)
+  disks = map(lambda line: filter(lambda part: part!='', line), disks)
+  for line in disks:
+      line=list(line)
+      out_line=''
+      if int(line[-2].split('%')[0]) > 80:
+          out_line = "\033[4;37;41m"
+      out_line += line[-1].ljust(20) + line[-2].rjust(3)
+      out_line += "\033[0m"
+      out_line = out_line.strip()
+      out_line = str(' '*int((80-len(out_line))/2)) + out_line
+      out_str += out_line +'\n'
+  return out_str
+
+def center_align(str_in):
+  left_margin = int((columns-80)/2)
+  lines = str_in.splitlines()
+  height = len(lines)
+  vertical_margin = int((rows-height)/2)
+  return str('\n'*vertical_margin) + \
+        '\n'.join(map(lambda line: (' '*left_margin) + line, lines)) +\
+        str('\n'*(vertical_margin-1))
+
+def hr():
+  return '\n' + str('─'*80) + '\n'
+
+print(center_align(print_calendar() + hr()\
+      +TMUX_CHEATSHEET+ hr()\
+      +print_disks_report()))
+
+
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