ASCII码关系图

契机

最近在梳理k8s描述文件的关系，用excel画图太累了，而且xls的格式虽不能说不通用，但还是有局限性，所以找出来用ascii码画图的想法
用ascii码画关系图产生的结果直接打印在字符界面上，同时也可以重定向到普通的文本文件，兼容性肯定是大于excel的，虽然说能显示的东西不多，但梳理层次和普通的关系还是可以看看的，当然需要读图的人理解

脚本

以下就是我用python写的脚本，其实没有多少东西
需要的参数仅仅是 文件路径和分隔符

#!/usr/bin/python3
#coding=utf-8

import os
import sys

def precheck_argc(argc):
  if len(argc) != 3:
    print("使用方法 main.py [文件路径] [分隔符{逗号|空格|etc}")
    sys.exit(1)
  
def precheck_path(filepath):
  if not os.path.isfile(filepath):
    print("该文件["+ filepath + "]不存在，请查询路径")
    sys.exit(1)

def xlistget(xlist):
  fullname = ""
  xheadtail = ""
  for ele in xlist:
    shapename = "|" + ele + "|"
    shapeht = "+" + len(ele) * "-" + "+"
    if ele == xlist[-1]:
      fullname = fullname + shapename
      xheadtail = xheadtail + shapeht
    else:
      fullname = fullname + shapename + "->"
      xheadtail = xheadtail + shapeht + "  "
  xlinestr = xheadtail + "\n" + fullname + "\n" + xheadtail
  return(xlinestr)

if __name__ == '__main__':
  
  argc = sys.argv
  precheck_argc(argc)

  filepath = sys.argv[1]
  precheck_path(filepath)

  conline = "  |\n  v"

  listfile = open(filepath,"r")
  content = listfile.read()
  listfile.close()

  requestlist = content.split('\n')
  splitsym = sys.argv[2]

  for ele in requestlist:
    if ele == requestlist[-1]:
      xlist = ele.split(splitsym)
      shapefull = xlistget(xlist)
      print(shapefull)
    else:
      xlist = ele.split(splitsym)
      shapefull = xlistget(xlist) + "\n" + conline
      print(shapefull)

输入文件

关系文件如下
可以看到只有两个维度的东西
即y轴是各描述文件的名
x轴是各描述文件对一些其他资源的依赖
你可以自定义自己的分隔符，我这个例子用了逗号

PS C:\Users\rikug\Desktop\workdir\oldschoolart> gc testlist
svc: nginx-test-svc
deploy: nginx-test,configmap: nginxcm,pvc: cephfspvc
configmap: nginxcm,data: rootindex.conf

运行效果

运行效果如下

PS C:\Users\rikug\Desktop\workdir\oldschoolart> python .\simplemakeosa.py testlist ","
+-------------------+
|svc: nginx-test-svc|
+-------------------+
  |
  v
+------------------+  +------------------+  +--------------+
|deploy: nginx-test|->|configmap: nginxcm|->|pvc: cephfspvc|
+------------------+  +------------------+  +--------------+
  |
  v
+------------------+  +--------------------+
|configmap: nginxcm|->|data: rootindex.conf|
+------------------+  +--------------------+