kc3-lang/harfbuzz/src/gen-hb-version.py

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• Author : aneejit1
  Date : 2022-03-24 20:16:41
  Hash : a55a4244
  Message : Meson build writes to the source directory (issue #3507 ) (#3508) Don't write to source directory if files did not change Remove writes to the source directory which cause a meson build failure if the source directory is read-only. https://github.com/harfbuzz/harfbuzz/pull/3508

• src/gen-hb-version.py

• #!/usr/bin/env python3
  
  "This tool is intended to be used from meson"
  
  import os, sys, shutil, re
  
  if len (sys.argv) < 4:
  	sys.exit(__doc__)
  
  version = sys.argv[1]
  major, minor, micro = version.split (".")
  
  OUTPUT = sys.argv[2]
  INPUT = sys.argv[3]
  CURRENT_SOURCE_DIR = os.path.dirname(INPUT)
  
  try:
  	with open (OUTPUT, "r", encoding='utf-8') as old_output:
  		for line in old_output:
  			old_version = re.match (r"#define HB_VERSION_STRING \"(\d.\d.\d)\"", line)
  			if old_version and old_version[1] == version:
  				sys.exit ()
  except IOError:
  	pass
  
  with open (INPUT, "r", encoding='utf-8') as template:
  	with open (OUTPUT, "wb") as output:
  		output.write (template.read ()
  			.replace ("@HB_VERSION_MAJOR@", major)
  			.replace ("@HB_VERSION_MINOR@", minor)
  			.replace ("@HB_VERSION_MICRO@", micro)
  			.replace ("@HB_VERSION@", version)
  			.encode ())
  
  # copy it also to the source tree, but only if it has changed
  baseline_filename = os.path.join (CURRENT_SOURCE_DIR, os.path.basename (OUTPUT))
  with open(baseline_filename, "rb") as baseline:
  	with open(OUTPUT, "rb") as generated:
  		if baseline.read() != generated.read():
  			shutil.copyfile (OUTPUT, baseline_filename)