Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/check-symbols.py @ 21:2f43e400f144

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Provide an "all" target to build both the sdist and the wheel
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 10:28:53 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
1 #!/usr/bin/env python3
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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2
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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3 import sys, os, shutil, subprocess, re, difflib
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4
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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5 os.environ['LC_ALL'] = 'C' # otherwise 'nm' prints in wrong order
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6
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7 builddir = os.getenv ('builddir', os.path.dirname (__file__))
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8 libs = os.getenv ('libs', '.libs')
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9
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10 IGNORED_SYMBOLS = '|'.join(['_fini', '_init', '_fdata', '_ftext', '_fbss',
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11 '__bss_start', '__bss_start__', '__bss_end__', '_edata', '_end', '_bss_end__',
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12 '__end__', '__gcov_.*', 'llvm_.*', 'flush_fn_list', 'writeout_fn_list', 'mangle_path',
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13 'lprofDirMode', 'reset_fn_list'])
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14
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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15 nm = os.getenv ('NM', shutil.which ('nm'))
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16 if not nm:
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17 print ('check-symbols.py: \'nm\' not found; skipping test')
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18 sys.exit (77)
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20 cxxfilt = shutil.which ('c++filt')
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21
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22 tested = False
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23 stat = 0
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25 for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-icu', 'harfbuzz-gobject']:
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26 for suffix in ['so', 'dylib']:
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27 so = os.path.join (builddir, libs, 'lib%s.%s' % (soname, suffix))
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28 if not os.path.exists (so): continue
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30 # On macOS, C symbols are prefixed with _
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31 symprefix = '_' if suffix == 'dylib' else ''
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32
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33 EXPORTED_SYMBOLS = [s.split ()[2]
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34 for s in re.findall (r'^.+ [BCDGIRSTu] .+$', subprocess.check_output (nm.split() + [so]).decode ('utf-8'), re.MULTILINE)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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35 if not re.match (r'.* %s(%s)\b' % (symprefix, IGNORED_SYMBOLS), s)]
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37 # run again c++filt also if is available
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38 if cxxfilt:
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39 EXPORTED_SYMBOLS = subprocess.check_output (
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40 [cxxfilt], input='\n'.join (EXPORTED_SYMBOLS).encode ()
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41 ).decode ('utf-8').splitlines ()
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43 prefix = (symprefix + os.path.basename (so)).replace ('libharfbuzz', 'hb').replace ('-', '_').split ('.')[0]
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45 print ('Checking that %s does not expose internal symbols' % so)
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46 suspicious_symbols = [x for x in EXPORTED_SYMBOLS if not re.match (r'^%s(_|$)' % prefix, x)]
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47 if suspicious_symbols:
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48 print ('Ouch, internal symbols exposed:', suspicious_symbols)
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49 stat = 1
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51 def_path = os.path.join (builddir, soname + '.def')
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52 if not os.path.exists (def_path):
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53 print ('\'%s\' not found; skipping' % def_path)
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54 else:
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55 print ('Checking that %s has the same symbol list as %s' % (so, def_path))
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56 with open (def_path, 'r', encoding='utf-8') as f: def_file = f.read ()
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57 diff_result = list (difflib.context_diff (
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58 def_file.splitlines (),
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59 ['EXPORTS'] + [re.sub ('^%shb' % symprefix, 'hb', x) for x in EXPORTED_SYMBOLS] +
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60 # cheat: copy the last line from the def file!
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61 [def_file.splitlines ()[-1]]
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62 ))
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64 if diff_result:
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65 print ('\n'.join (diff_result))
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66 stat = 1
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68 tested = True
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70 if not tested:
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71 print ('check-symbols.py: no shared libraries found; skipping test')
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72 sys.exit (77)
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74 sys.exit (stat)