#!/usr/bin/env python
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import os
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import re
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import sys
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def common_config(configs):
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allconfigs = {}
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for config in configs:
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if not config.endswith("config"):
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continue
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allconfigs[config] = set()
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for line in open(config):
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m = re.match("#*\s*(BR2_\w+)[\s=](.*)$", line)
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if not m:
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continue
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option, value = m.groups()
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allconfigs[config].add((option, value))
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common = allconfigs.values()[0].copy()
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for config in allconfigs.keys():
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common &= allconfigs[config]
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for config in allconfigs.keys():
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allconfigs[config] -= common
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print(common)
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def load_base(base_cfgs, cfg):
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base_cfgs[cfg] = set()
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for line in open(cfg):
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n = re.match('\s*#include\s*"(\w+\.\w+)"\s*$', line)
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if n:
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name = n.group(1)
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path = os.path.dirname(os.path.realpath(cfg))
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if not path.endswith("rockchip"):
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path += "/rockchip"
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name = path + '/' + name
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load_base(base_cfgs, name)
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continue
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m = re.match("#*\s*(BR2_\w+)[\s=](.*)$", line)
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if m:
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option, value = m.groups()
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base_cfgs[cfg].add((option, value))
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def split_config(base_cfgs, config, output):
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load_base(base_cfgs, config)
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base_cfgs.pop(config)
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with open(output, "w+") as f:
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for line in open(config):
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m = re.match("#*\s*(BR2_\w+)[\s=](.*)$", line)
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if not m:
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f.write(line)
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continue
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option, value = m.groups()
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temp = set()
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temp.add((option, value))
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if option == "BR2_ROOTFS_OVERLAY" and value != "is not set":
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values = value.strip('"').split(' ')
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for cfg in base_cfgs.keys():
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for item in base_cfgs[cfg]:
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opt, val = item
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if opt != option: # Skip not BR2_ROOTFS_OVERLAY
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continue
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vals = val.strip('"').split(' ')
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for v in vals:
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try:
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while True:
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values.remove(v)
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except ValueError as e:
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pass
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if len(values):
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val = ''
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for v in values:
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val = val + v + ' ';
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val = val.strip()
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f.write('BR2_ROOTFS_OVERLAY="' + val + '"\n')
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else:
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discard = False
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for cfg in base_cfgs.keys():
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if temp.issubset(base_cfgs[cfg]):
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discard = True
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if not discard:
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f.write(m.group() + '\n')
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def merge_base(config):
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result = ''
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overlay = ''
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for line in open(config):
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n = re.match('#include\s*"(\w+\.\w+)"$', line)
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if n:
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path = os.path.dirname(os.path.realpath(config))
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if not path.endswith("rockchip"):
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path += "/rockchip"
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name = path + '/' + n.group(1)
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res, ovl = merge_base(name)
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result += res
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overlay = (overlay + " " + ovl).strip()
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else:
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# W/O quotation mark(")
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m = re.match('BR2_ROOTFS_OVERLAY="(.*)"$', line)
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if m:
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overlay = (overlay + " " + m.group(1)).strip()
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else:
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result += line
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return result, overlay
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def merge_cfgs(config, output):
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with open(output, "w+") as f:
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result, overlay = merge_base(config)
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for line in open(config):
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# override ROOTS_OVERLAY
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m = re.match('BR2_ROOTFS_OVERLAY:="(.*)"$', line)
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if m:
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overlay = m.group(1)
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f.write(result)
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f.write('BR2_ROOTFS_OVERLAY="' + overlay + '"\n')
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def print_usage():
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print ("Usage:")
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print (" Split defconfig: " + sys.argv[0] + " -s <defconfig> <output>")
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print (" Merge defconfig: " + sys.argv[0] + " -m <defconfig> <output>")
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if __name__ == '__main__':
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#common_config(sys.argv)
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if len(sys.argv) != 4:
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print_usage()
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sys.exit(-1)
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if sys.argv[1] == '-s':
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base_cfgs = {}
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split_config(base_cfgs, sys.argv[2], sys.argv[3])
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elif sys.argv[1] == '-m':
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merge_cfgs(sys.argv[2], sys.argv[3])
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else:
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print_usage()
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