components

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1. #!/usr/bin/env python3
2. # (copied from gitoria .scratch/w082 for components mission 002; file filter = baseline.mjs names)
3. # tests/same-output-modules.py <dirA> <dirB> (gitoria's modcmp.py): the browser modules of two baseline runs. A module = the component's own code + tables of the
4. # statics it imports (each a real, client-callable function or a refusing server-only stub naming its file). A move of a
5. # static to another file changes the tables and the source positions, not the behaviour. Checked here:
6. # 1. the module without the import tables and with every source position masked is the same;
7. # 2. every imported name the component's own code uses is the same kind (function / stub), a function with the same body.
8. import os, re, sys
9. a, b = sys.argv[1], sys.argv[2]
10. POS = re.compile(r'[\w-]+\.hl:\d+:\d+')
11. def parts(t):
12. t = re.sub(r'\?v=[0-9a-f]+', '?v=H', t)
13. kinds, own = {}, []
14. lines = t.split('\n'); i = 0
15. while i < len(lines):
16. l = lines[i]
17. m = re.match(r'\$_\d+\.(\w+)=(.*)$', l)
18. if m:
19. if m.group(2).startswith('()=>_55('): kinds.setdefault(m.group(1), ('stub', ''))
20. else:
21. body = [m.group(2)]
22. while not lines[i].endswith('}));') and not (lines[i].endswith(';') and lines[i] is l and '=>{' not in l):
23. i += 1; body.append(lines[i])
24. kinds[m.group(1)] = ('fn', POS.sub('P', re.sub(r'\$_\d+', '$_N', '\n'.join(body))))
25. i += 1; continue
26. if re.match(r'const \$_\d+=\{\};$', l) or re.match(r'const \w+=\$_\d+\.\w+;$', l) or re.match(r'const \w+=\(\)=>_55\(2,', l):
27. m2 = re.match(r'const (\w+)=\(\)=>_55\(2,', l)
28. if m2: kinds[m2.group(1)] = ('plugin', '')
29. i += 1; continue
30. own.append(POS.sub('P', re.sub(r'\$_\d+', '$_N', l))); i += 1
31. return kinds, '\n'.join(own)
32. bad = 0
33. for f in sorted(os.listdir(a)):
34. if not (f.startswith('http__') and f.endswith('.hl')): continue # m002: the browser modules of baseline.mjs
35. x, y = open(os.path.join(a, f)).read(), open(os.path.join(b, f)).read()
36. if x == y: print(f, 'identical'); continue
37. kx, ox = parts(x); ky, oy = parts(y)
38. notes = []
39. if ox != oy: notes.append('the component code differs')
40. words = set(re.findall(r'\b\w+\b', ox))
41. for n in sorted(words & (set(kx) | set(ky))):
42. if kx.get(n) != ky.get(n): notes.append(f'{n}: {kx.get(n, ("absent",))[0]} → {ky.get(n, ("absent",))[0]}' + (' (body differs)' if kx.get(n, ('',))[0] == ky.get(n, ('',))[0] == 'fn' else ''))
43. print(f, 'same code, same imported functions (only the tables / positions moved)' if not notes else 'DIFF: ' + '; '.join(notes))
44. bad += len(notes)
45. sys.exit(1 if bad else 0)