build/clang-plugin/ThirdPartyPaths.py

   1 #!/usr/bin/env python3
   2
   3 import glob
   4 import json
   5 import sys
   6
   7 # Import buildconfig if available, otherwise set has_buildconfig to False so
   8 # we skip the check which relies on it.
   9 try:
  10     import buildconfig
  11 except ImportError:
  12     has_buildconfig = False
  13 else:
  14     has_buildconfig = True
  15
  16
  17 def generate(output, *input_paths):
  18     """
  19     This file generates a ThirdPartyPaths.cpp file from the ThirdPartyPaths.txt
  20     file in /tools/rewriting, which is used by the Clang Plugin to help identify
  21     sources which should be ignored.
  22     """
  23     tpp_list = []
  24     lines = set()
  25     path_found = True
  26
  27     for path in input_paths:
  28         with open(path) as f:
  29             lines.update(f.readlines())
  30
  31     for line in lines:
  32         line = line.strip()
  33         if line.endswith("/"):
  34             line = line[:-1]
  35
  36         if has_buildconfig:
  37             # Ignore lines starting with $UNVALIDATED
  38             # These should only be coming from Unvalidated.txt
  39             if line.startswith("$UNVALIDATED"):
  40                 line = line[13:]
  41             elif not glob.glob(buildconfig.topsrcdir + "/" + line):
  42                 path_found = False
  43
  44         if path_found:
  45             tpp_list.append(line)
  46         else:
  47             print(
  48                 "Third-party path "
  49                 + line
  50                 + " does not exist. Remove it from Generated.txt or "
  51                 + "ThirdPartyPaths.txt and try again."
  52             )
  53             sys.exit(1)
  54     tpp_strings = ",\n  ".join([json.dumps(tpp) for tpp in sorted(tpp_list)])
  55
  56     output.write(
  57         """\
  58 /* THIS FILE IS GENERATED BY ThirdPartyPaths.py - DO NOT EDIT */
  59
  60 #include <stdint.h>
  61
  62 const char* MOZ_THIRD_PARTY_PATHS[] = {
  63   %s
  64 };
  65
  66 extern const uint32_t MOZ_THIRD_PARTY_PATHS_COUNT = %d;
  67
  68 """
  69         % (tpp_strings, len(tpp_list))
  70     )