efl

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#!/bin/env python3
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import os
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import subprocess
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import argparse
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import json
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from elftools.elf.elffile import ELFFile
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#meson changed behaviour from 0.49 to 0.50 so we need this:
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def meson_fetch_filename(filename_object):
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  if isinstance(filename_object, str):
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    return filename_object
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  else:
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    return filename_object[0]
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def needed_libs(filename):
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  print('Processing file:', filename)
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  result = []
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  with open(filename, 'rb') as f:
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    elffile = ELFFile(f)
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    for section in elffile.iter_sections():
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      if section.name.startswith('.dynamic'):
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        for tag in section.iter_tags():
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          if tag.entry.d_tag == 'DT_NEEDED':
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            result.append(getattr(tag, tag.entry.d_tag[3:].lower()))
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  return result
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parser = argparse.ArgumentParser(description='Check that when build with efl-one that no module nor efl-one lib does drag in libeina or the likes')
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parser.add_argument('builddir', metavar='build', help='the path where to find the meson build directory')
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G = parser.parse_args()
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#Run meson to fetch all examples
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meson_introspect = subprocess.Popen(["meson", "introspect", G.builddir, "--targets"],
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      stdout = subprocess.PIPE,
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      stderr = subprocess.PIPE,
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)
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meson_introspect.poll()
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build_targets = json.loads(meson_introspect.stdout.read())
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build_modules = [meson_fetch_filename(b["filename"]) for b in build_targets if "modules" in meson_fetch_filename(b["filename"]) and meson_fetch_filename(b["filename"]).endswith('.so')]
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for build_modules in build_modules:
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  libs = needed_libs(build_modules)
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  lib_es = [lib for lib in libs if lib.startswith("libe") and lib != "libefl-one.so.1"]
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  if len(lib_es) != 0:
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    print("Error, {} requies lib {}".format(build_modules, lib_es[0]))
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    exit(-1)
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print("Nothing wrong found!")
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