48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
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#!/usr/bin/env python3
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# ft=python
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import os, sys
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def compare_dirs(d1: "old directory name", d2: "new directory name"):
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def print_local(a, msg):
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print('DIR ' if a[2] else 'FILE', a[1], msg)
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# ensure validity
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for d in [d1,d2]:
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if not os.path.isdir(d):
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raise ValueError("not a directory: " + d)
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# get relative path
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l1 = [(x,os.path.join(d1,x)) for x in os.listdir(d1)]
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l2 = [(x,os.path.join(d2,x)) for x in os.listdir(d2)]
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# determine type: directory or file?
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l1 = sorted([(x,y,os.path.isdir(y)) for x,y in l1])
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l2 = sorted([(x,y,os.path.isdir(y)) for x,y in l2])
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i1 = i2 = 0
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common_dirs = []
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while i1<len(l1) and i2<len(l2):
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if l1[i1][0] == l2[i2][0]: # same name
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if l1[i1][2] == l2[i2][2]: # same type
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if l1[i1][2]: # remember this folder for recursion
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common_dirs.append((l1[i1][1], l2[i2][1]))
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else:
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print_local(l1[i1],'type changed')
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i1 += 1
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i2 += 1
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elif l1[i1][0]<l2[i2][0]:
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print_local(l1[i1],'removed')
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i1 += 1
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elif l1[i1][0]>l2[i2][0]:
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print_local(l2[i2],'added')
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i2 += 1
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while i1<len(l1):
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print_local(l1[i1],'removed')
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i1 += 1
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while i2<len(l2):
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print_local(l2[i2],'added')
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i2 += 1
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# compare subfolders recursively
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for sd1,sd2 in common_dirs:
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compare_dirs(sd1, sd2)
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if __name__=="__main__":
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compare_dirs(sys.argv[1], sys.argv[2])
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