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      1 #!/usr/bin/env python
      2 #
      3 # This software is licensed under the terms of the GNU General Public
      4 # License version 2, as published by the Free Software Foundation, and
      5 # may be copied, distributed, and modified under those terms.
      6 #
      7 # This program is distributed in the hope that it will be useful,
      8 # but WITHOUT ANY WARRANTY; without even the implied warranty of
      9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     10 # GNU General Public License for more details.
     11 #
     12 # this script is used to generate 'android/avd/hw-config.h' by
     13 # parsing 'android/avd/hardware-properties.ini'
     14 #
     15 #
     16 import  sys, os, string, re
     17 
     18 # location of source file, relative to current program directory
     19 relativeSourcePath = "../avd/hardware-properties.ini"
     20 
     21 # location of target file, relative to current program directory
     22 relativeTargetPath = "../avd/hw-config-defs.h"
     23 
     24 def quoteStringForC(str):
     25     """quote a string so it can be used in C"""
     26     return '\\"'.join('"'+p+'"' for p in str.split('"'))
     27 
     28 # a dictionary that maps item types as they appear in the .ini
     29 # file into macro names in the generated C header
     30 #
     31 typesToMacros = { 
     32     'integer': 'HWCFG_INT',
     33     'string': 'HWCFG_STRING',
     34     'boolean': 'HWCFG_BOOL',
     35     'diskSize': 'HWCFG_DISKSIZE',
     36     'double': 'HWCFG_DOUBLE'
     37     }
     38 
     39 # the list of macro names
     40 macroNames = typesToMacros.values()
     41 
     42 # target program header
     43 targetHeader = """\
     44 /* this file is automatically generated from 'hardware-properties.ini'
     45  * DO NOT EDIT IT. To re-generate it, use android/tools/gen-hw-config.py'
     46  */
     47 """
     48 
     49 # locate source and target
     50 programDir = os.path.dirname(sys.argv[0])
     51 if len(sys.argv) != 3:
     52     print "Usage: %s source target\n" % os.path.basename(sys.argv[0])
     53     sys.exit(1)
     54 
     55 sourceFile = sys.argv[1]
     56 targetFile = sys.argv[2]
     57 
     58 # parse the source file and record items
     59 # I would love to use Python's ConfigParser, but it doesn't
     60 # support files without sections, or multiply defined items
     61 #
     62 items    = []
     63 lastItem = None
     64 
     65 class Item:
     66     def __init__(self,name):
     67         self.name     = name
     68         self.type     = type
     69         self.default  = None
     70         self.abstract = ""
     71         self.description = ""
     72 
     73     def add(self,key,val):
     74         if key == 'type':
     75             self.type = val
     76         elif key == 'default':
     77             self.default = val
     78         elif key == 'abstract':
     79             self.abstract = val
     80         elif key == 'description':
     81             self.description = val
     82 
     83 for line in open(sourceFile):
     84     line = line.strip()
     85     # ignore empty lines and comments
     86     if len(line) == 0 or line[0] in ";#":
     87         continue
     88     key, value = line.split('=')
     89 
     90     key   = key.strip()
     91     value = value.strip()
     92 
     93     if key == 'name':
     94         if lastItem: items.append(lastItem)
     95         lastItem = Item(value)
     96     else:
     97         lastItem.add(key, value)
     98 
     99 if lastItem:
    100     items.append(lastItem)
    101 
    102 if targetFile == '--':
    103     out = sys.stdout
    104 else:
    105     out = open(targetFile,"wb")
    106 
    107 out.write(targetHeader)
    108 
    109 # write guards to prevent bad compiles
    110 for m in macroNames:
    111     out.write("""\
    112 #ifndef %(macro)s
    113 #error  %(macro)s not defined
    114 #endif
    115 """ % { 'macro':m })
    116 out.write("\n")
    117 
    118 for item in items:
    119     if item.type == None:
    120         sys.stderr.write("ignoring config item with no type '%s'\n" % item.name)
    121         continue
    122 
    123     if not typesToMacros.has_key(item.type):
    124         sys.stderr.write("ignoring config item with unknown type '%s': '%s'\n" % \
    125                 (item.type, item.name))
    126         continue
    127 
    128     if item.default == None:
    129         sys.stderr.write("ignoring config item with no default '%s' */" % item.name)
    130         continue
    131 
    132     # convert dots into underscores
    133     varMacro   = typesToMacros[item.type]
    134     varNameStr = quoteStringForC(item.name)
    135     varName    = item.name.replace(".","_")
    136     varDefault = item.default
    137     varAbstract = quoteStringForC(item.abstract)
    138     varDesc     = quoteStringForC(item.description)
    139 
    140     if item.type in [ 'string', 'boolean', 'diskSize' ]:
    141         # quote default value for strings
    142         varDefault = quoteStringForC(varDefault)
    143 
    144     out.write("%s(\n  %s,\n  %s,\n  %s,\n  %s,\n  %s)\n\n" % \
    145             (varMacro,varName,varNameStr,varDefault,varAbstract,varDesc))
    146 
    147 
    148 for m in macroNames:
    149     out.write("#undef %s\n" % m)
    150 
    151 out.write("/* end of auto-generated file */\n")
    152 out.close()
    153