kc3-lang/harfbuzz/src/gen-def.py

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• Hash : d230a020
  Author :
  Date : 2018-11-12T19:41:39
  

  meson: generate .def file for MSVC symbol export on the fly
  
  Fix symbol export with MSVC when features are disabled,
  such as GLib. We need to generate the list of exported
  symbols on the fly to make sure we only export symbols
  that are actually available.
  
  Needs some minor modifications to the gen-def.py script:
   - accept header list also via command line args; we can't
     pass things to a configure_file() command via the environment
     in Meson.
   - strip any leading 'src/' from library filename. This might
     be there because in Meson the script might be called from
     the top-level directory and not the current source directory.
  
  Remove .def files again which had been checked in for earlier
  versions of the Meson port.
  

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• src/gen-def.py

• #!/usr/bin/env python3
  
  import io, os, re, sys
  
  if len (sys.argv) < 3:
  	sys.exit("usage: gen-def.py harfbuzz.def hb.h [hb-blob.h hb-buffer.h ...]")
  
  output_file = sys.argv[1]
  header_paths = sys.argv[2:]
  
  headers_content = []
  for h in header_paths:
  	if h.endswith (".h"):
  		with io.open (h, encoding='utf-8') as f: headers_content.append (f.read ())
  
  symbols = "\n".join (sorted (re.findall (r"^hb_\w+(?= \()", "\n".join (headers_content), re.M)))
  
  result = symbols if os.environ.get('PLAIN_LIST', '') else """EXPORTS
  %s
  LIBRARY lib%s-0.dll""" % (symbols, output_file.replace ('src/', '').replace ('.def', ''))
  
  with open (output_file, "w") as f: f.write (result)
  

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