1 | #! /usr/bin/env python |
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2 | # |
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3 | # RTEMS Tools Project (http://www.rtems.org/) |
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4 | # Copyright 2014 Chris Johns (chrisj@rtems.org) |
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5 | # All rights reserved. |
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6 | # |
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7 | # This file is part of the RTEMS Tools package in 'rtems-tools'. |
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8 | # |
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9 | # Redistribution and use in source and binary forms, with or without |
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10 | # modification, are permitted provided that the following conditions are met: |
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11 | # |
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12 | # 1. Redistributions of source code must retain the above copyright notice, |
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13 | # this list of conditions and the following disclaimer. |
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14 | # |
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15 | # 2. Redistributions in binary form must reproduce the above copyright notice, |
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16 | # this list of conditions and the following disclaimer in the documentation |
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17 | # and/or other materials provided with the distribution. |
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18 | # |
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19 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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20 | # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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21 | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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22 | # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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23 | # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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24 | # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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25 | # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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26 | # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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27 | # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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28 | # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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29 | # POSSIBILITY OF SUCH DAMAGE. |
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30 | # |
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31 | |
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32 | # |
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33 | # Pkg-config in python. It attempts to provide a few simple features |
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34 | # provided by the full pkg-config so packages can configure and build. |
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35 | # |
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36 | |
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37 | import copy |
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38 | import os |
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39 | import os.path |
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40 | import re |
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41 | import shlex |
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42 | import sys |
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43 | |
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44 | def default_prefix(common = True): |
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45 | paths = [] |
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46 | if 'PKG_CONFIG_PATH' in os.environ: |
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47 | paths += os.environ['PKG_CONFIG_PATH'].split(':') |
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48 | if common: |
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49 | defaults = ['/usr', '/usr/share', '/lib', '/lib64', '/usr/lib', '/usr/lib64', '/usr/local'] |
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50 | for d in defaults: |
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51 | for cp in package.config_prefixes: |
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52 | prefix = os.path.join(d, cp, 'pkgconfig') |
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53 | if os.path.exists(prefix): |
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54 | paths += [prefix] |
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55 | return paths |
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56 | |
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57 | class error(Exception): |
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58 | def __init__(self, msg): |
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59 | self.msg = msg |
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60 | |
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61 | def __str__(self): |
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62 | return self.msg |
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63 | |
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64 | class package(object): |
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65 | |
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66 | node_types = ['requires', 'requires.private'] |
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67 | node_type_labels = { 'requires': 'r', 'requires.private': 'rp', 'failed': 'F' } |
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68 | version_ops = ['=', '<', '>', '<=', '>=', '!='] |
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69 | config_prefixes = ['lib', 'libdata'] |
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70 | get_recursion = ['cflags', 'libs'] |
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71 | no_dup_flags = ['-I', '-l', '-L'] |
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72 | dual_opts = ['-D', '-U', '-I', '-l', '-L'] |
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73 | lib_list_splitter = re.compile('[\s,]+') |
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74 | loaded = {} |
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75 | |
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76 | @staticmethod |
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77 | def _copy(src, dst): |
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78 | dst.name_ = src.name_ |
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79 | dst.file_ = src.file_ |
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80 | dst.defines = copy.copy(src.defines) |
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81 | dst.fields = copy.copy(src.fields) |
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82 | dst.nodes = copy.copy(src.nodes) |
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83 | |
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84 | @staticmethod |
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85 | def is_version(v): |
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86 | for n in v.split('.'): |
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87 | if not n.isdigit(): |
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88 | return False |
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89 | return True |
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90 | |
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91 | @staticmethod |
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92 | def splitter(pkg_list): |
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93 | pkgs = [] |
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94 | if type(pkg_list) == list: |
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95 | pls = [] |
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96 | for p in pkg_list: |
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97 | pls += package.lib_list_splitter.split(p) |
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98 | else: |
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99 | pls = package.lib_list_splitter.split(pkg_list) |
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100 | i = 0 |
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101 | while i < len(pls): |
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102 | pkg = [pls[i]] |
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103 | i += 1 |
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104 | if i < len(pls): |
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105 | op = None |
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106 | if package.is_version(pls[i]): |
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107 | op = '>=' |
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108 | ver = pls[i] |
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109 | i += 1 |
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110 | elif pls[i] in package.version_ops: |
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111 | op = pls[i] |
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112 | i += 1 |
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113 | if i < len(pls): |
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114 | ver = pls[i] |
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115 | i += 1 |
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116 | else: |
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117 | op = '>=' |
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118 | ver = '0' |
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119 | pkg += [op, ver] |
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120 | else: |
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121 | pkg += ['>=', '0'] |
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122 | pkgs += [pkg] |
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123 | return pkgs |
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124 | |
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125 | @staticmethod |
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126 | def check_versions(lhs, op, rhs): |
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127 | if op not in package.version_ops: |
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128 | raise error('bad operator: %s' % (op)) |
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129 | if not lhs or not rhs: |
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130 | return False |
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131 | slhs = lhs.split('.') |
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132 | srhs = rhs.split('.') |
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133 | ok = True |
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134 | i = 0 |
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135 | while i < len(srhs): |
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136 | try: |
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137 | l = int(slhs[i]) |
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138 | r = int(srhs[i]) |
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139 | except: |
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140 | return False |
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141 | if op == '=': |
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142 | if l != r: |
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143 | ok = False |
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144 | break |
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145 | elif op == '<': |
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146 | if l < r: |
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147 | break |
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148 | if l >= r: |
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149 | ok = False |
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150 | break |
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151 | elif op == '>': |
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152 | if l > r: |
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153 | break |
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154 | if l <= r: |
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155 | ok = False |
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156 | break |
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157 | elif op == '<=': |
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158 | if l < r: |
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159 | break |
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160 | if l > r: |
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161 | ok = False |
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162 | break |
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163 | elif op == '>=': |
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164 | if l > r: |
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165 | break |
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166 | if l < r: |
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167 | ok = False |
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168 | break |
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169 | elif op == '!=': |
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170 | if l != r: |
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171 | ok = True |
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172 | break |
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173 | if l == r: |
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174 | ok = False |
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175 | i += 1 |
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176 | return ok |
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177 | |
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178 | @staticmethod |
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179 | def dump_loaded(): |
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180 | for n in sorted(package.loaded): |
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181 | print package.loaded[n]._str() |
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182 | |
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183 | def __init__(self, name = None, prefix = None, libs_scan = False, output = None, src = None): |
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184 | self._clean() |
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185 | self.name_ = name |
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186 | self.libs_scan = libs_scan |
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187 | self.output = output |
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188 | self.src = src |
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189 | self.prefix = None |
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190 | self.paths = [] |
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191 | if prefix is None: |
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192 | prefix = default_prefix() |
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193 | if prefix: |
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194 | if type(prefix) is str: |
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195 | self.prefix = prefix.split(os.pathsep) |
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196 | elif type(prefix) is list: |
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197 | self.prefix = prefix |
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198 | else: |
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199 | raise error('invalid type of prefix: %s' % (type(prefix))) |
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200 | for p in self.prefix: |
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201 | if os.path.exists(p): |
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202 | self.paths += [p] |
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203 | self._log('paths: %s' % (', '.join(self.paths))) |
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204 | if 'sysroot' in self.defines: |
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205 | self._log('sysroot: %s' % (self.defines['sysroot'])) |
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206 | if 'top_builddir' in self.defines: |
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207 | self._log('top_builddir: %s' % (self.defines['top_builddir'])) |
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208 | if self.name_: |
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209 | self.load(self.name_) |
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210 | |
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211 | def __str__(self): |
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212 | s = self._str() |
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213 | for nt in package.node_types: |
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214 | for n in sorted(self.nodes[nt]): |
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215 | s += ' ' + \ |
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216 | ' '.join(['%s%s' % (s, os.linesep) \ |
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217 | for s in str(self.nodes[nt][n]).split(os.linesep)]) |
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218 | return s[:-1] |
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219 | |
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220 | def _str(self): |
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221 | if self.file_ or len(self.libraries): |
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222 | e = 'E' |
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223 | else: |
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224 | e = '-' |
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225 | s = '> %s %s (%s)%s' % (self.name_, e, self.file_, os.linesep) |
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226 | for d in sorted(self.defines): |
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227 | s += 'd: %s: %s%s' % (d, self.defines[d], os.linesep) |
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228 | for f in sorted(self.fields): |
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229 | s += 'f: %s: %s%s' % (f, self.fields[f], os.linesep) |
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230 | for l in sorted(self.libraries): |
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231 | s += 'l: %s%s' % (l, os.linesep) |
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232 | for nt in package.node_types + ['failed']: |
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233 | s += '%s: ' % (package.node_type_labels[nt]) |
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234 | if len(self.nodes[nt]): |
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235 | txt = [] |
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236 | for n in sorted(self.nodes[nt]): |
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237 | if self.nodes[nt][n].exists(): |
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238 | e = '' |
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239 | else: |
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240 | e = '*' |
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241 | txt += ['%s%s' % (n, e)] |
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242 | s += '%s%s' % (', '.join(txt), os.linesep) |
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243 | else: |
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244 | s += 'none' + os.linesep |
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245 | return s #[:-1] |
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246 | |
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247 | def _clean(self): |
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248 | self.name_ = None |
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249 | self.file_ = None |
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250 | self.defines = {} |
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251 | self.fields = {} |
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252 | self.nodes = { 'failed': {} } |
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253 | for nt in package.node_types: |
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254 | self.nodes[nt] = {} |
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255 | self.libraries = [] |
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256 | if 'PKG_CONFIG_SYSROOT_DIR' in os.environ: |
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257 | self.defines['sysroot'] = os.environ['PKG_CONFIG_SYSROOT_DIR'] |
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258 | if 'PKG_CONFIG_BUILD_TOP_DIR' in os.environ: |
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259 | self.defines['top_builddir'] = os.environ['PKG_CONFIG_BUILD_TOP_DIR'] |
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260 | |
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261 | def _log(self, s): |
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262 | if self.output: |
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263 | self.output(s) |
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264 | |
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265 | def _find_package(self, name): |
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266 | if len(self.paths): |
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267 | for path in self.paths: |
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268 | pc = os.path.join(path, '%s.pc' % (name)) |
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269 | if os.path.isfile(pc): |
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270 | return pc; |
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271 | return None |
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272 | |
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273 | def _find_libraries(self, name): |
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274 | libraries = [] |
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275 | if self.libs_scan: |
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276 | for prefix in self.prefix: |
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277 | prefix = os.path.join(prefix, 'lib') |
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278 | if os.path.exists(prefix): |
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279 | for l in os.listdir(prefix): |
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280 | if l.startswith(name + '.'): |
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281 | libraries += [os.path.join(prefix, l)] |
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282 | break |
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283 | return libraries |
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284 | |
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285 | def _filter_sysroot(self, s): |
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286 | if 'sysroot' in self.defines: |
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287 | sysroot = self.defines['sysroot'] |
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288 | offset = 0 |
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289 | while True: |
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290 | dash = s[offset:].find('-') |
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291 | if dash < 0: |
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292 | break |
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293 | if offset + dash + 2 < len(s) and s[offset + dash + 1] in 'LI': |
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294 | s = s[:offset + dash + 2] + sysroot + s[offset + dash + 2:] |
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295 | offset += dash + 1 |
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296 | return s |
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297 | |
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298 | def _filter_top_builddir(self, s): |
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299 | if 'top_builddir' in self.defines: |
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300 | top_builddir = self.defines['top_builddir'] |
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301 | if self.file_.startswith(top_builddir): |
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302 | offset = 0 |
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303 | while True: |
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304 | dash = s[offset:].find('-') |
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305 | if dash < 0: |
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306 | break |
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307 | if offset + dash + 2 < len(s) and s[offset + dash + 1] in 'LI': |
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308 | path = s[offset + dash + 2:] |
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309 | if not path.startswith(top_builddir): |
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310 | s = s[:offset + dash + 2] + top_builddir + path |
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311 | offset += dash + 1 |
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312 | return s |
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313 | |
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314 | def _filter_duplicates(self, s): |
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315 | clean = '' |
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316 | present = {} |
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317 | ss = shlex.split(s) |
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318 | i = 0 |
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319 | while i < len(ss): |
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320 | added = False |
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321 | for do in package.dual_opts: |
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322 | if ss[i].startswith(do): |
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323 | if ss[i] == do: |
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324 | i += 1 |
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325 | if i == len(ss): |
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326 | clean += ' %s' % (do) |
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327 | else: |
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328 | key = '%s%s' % (do, ss[i]) |
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329 | if key not in present: |
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330 | if ' ' in ss[i]: |
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331 | clean += ' %s"%s"' % (do, ss[i]) |
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332 | else: |
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333 | clean += ' %s' % (key) |
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334 | else: |
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335 | key = ss[i] |
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336 | if key not in present: |
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337 | clean += ' %s' % (key) |
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338 | added = True |
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339 | present[key] = True |
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340 | break |
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341 | if not added: |
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342 | if ss[i] not in present: |
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343 | clean += ' %s' % (ss[i]) |
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344 | present[ss[i]] = True |
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345 | i += 1 |
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346 | return clean |
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347 | |
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348 | def _filter(self, s): |
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349 | s = self._filter_top_builddir(s) |
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350 | s = self._filter_sysroot(s) |
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351 | s = self._filter_duplicates(s) |
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352 | return s.strip() |
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353 | |
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354 | def _splitter(self, pkg_list): |
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355 | pkgs = [] |
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356 | pls = pkg_list.split() |
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357 | i = 0 |
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358 | while i < len(pls): |
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359 | pkg = [pls[i]] |
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360 | i += 1 |
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361 | if i < len(pls) and pls[i] in package.version_ops: |
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362 | pkg += [pls[i]] |
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363 | i += 1 |
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364 | if i < len(ls): |
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365 | pkg += [pls[i]] |
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366 | i += 1 |
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367 | pkgs += [pkg] |
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368 | return pkgs |
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369 | |
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370 | def name_from_file(self, file = None): |
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371 | if file is None: |
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372 | file = self.file_ |
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373 | if file is None: |
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374 | return None |
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375 | name = os.path.basename(file) |
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376 | if name.endswith('.pc'): |
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377 | name = name[:-3] |
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378 | return name |
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379 | |
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380 | def name(self): |
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381 | return self.name_ |
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382 | |
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383 | def file(self): |
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384 | return self.file_ |
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385 | |
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386 | def exists(self): |
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387 | ok = False |
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388 | if self.file_: |
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389 | ok = True |
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390 | if self.libraries: |
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391 | ok = True |
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392 | return ok |
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393 | |
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394 | def load(self, name): |
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395 | if name in package.loaded: |
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396 | package._copy(package.loaded[name], self) |
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397 | return |
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398 | self._log('loading: %s' % (name)) |
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399 | if self.name_: |
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400 | self._clean() |
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401 | self.name_ = name |
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402 | file = self._find_package(name) |
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403 | if file: |
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404 | self._log('load: %s (%s)' % (name, file)) |
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405 | if self.src: |
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406 | self.src('==%s%s' % ('=' * 80, os.linesep)) |
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407 | self.src(' %s %s%s' % (file, '=' * (80 - len(file)), os.linesep)) |
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408 | self.src('==%s%s' % ('=' * 80, os.linesep)) |
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409 | f = open(file) |
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410 | tm = False |
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411 | for l in f.readlines(): |
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412 | if self.src: |
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413 | self.src(l) |
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414 | l = l[:-1] |
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415 | hash = l.find('#') |
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416 | if hash >= 0: |
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417 | l = l[:hash] |
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418 | if len(l): |
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419 | d = 0 |
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420 | define = False |
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421 | eq = l.find('=') |
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422 | dd = l.find(':') |
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423 | if eq > 0 and dd > 0: |
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424 | if eq < dd: |
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425 | define = True |
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426 | d = eq |
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427 | else: |
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428 | define = False |
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429 | d = dd |
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430 | elif eq >= 0: |
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431 | define = True |
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432 | d = eq |
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433 | elif dd >= 0: |
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434 | define = False |
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435 | d = dd |
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436 | if d > 0: |
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437 | lhs = l[:d].lower() |
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438 | rhs = l[d + 1:] |
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439 | if tm: |
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440 | print('define: ' + str(define) + ', lhs: ' + lhs + ', ' + rhs) |
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441 | if define: |
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442 | self.defines[lhs] = rhs |
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443 | else: |
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444 | self.fields[lhs] = rhs |
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445 | self.file_ = file |
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446 | else: |
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447 | self.libraries = self._find_libraries(name) |
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448 | for nt in package.node_types: |
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449 | requires = self.get(nt, private = False) |
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450 | if requires: |
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451 | for r in package.splitter(requires): |
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452 | if r[0] not in self.nodes[nt]: |
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453 | if r[0] in package.loaded: |
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454 | pkg = package.loaded[r[0]] |
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455 | else: |
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456 | pkg = package(r[0], self.prefix, self.output) |
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457 | ver = pkg.get('version') |
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458 | self._log(' checking: %s (%s) %s %s' % (r[0], ver, r[1], r[2])) |
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459 | if ver and package.check_versions(ver, r[1], r[2]): |
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460 | self.nodes[nt][r[0]] = pkg |
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461 | else: |
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462 | self._log('failed: %s (%s %s %s)' % (r[0], ver, r[1], r[2])) |
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463 | self.nodes['failed'][r[0]] = pkg |
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464 | if self.exists(): |
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465 | self._log('load: exists') |
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466 | package.loaded[name] = self |
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467 | |
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468 | def get(self, label, private = True): |
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469 | self._log('get: %s (%s)' % (label, ','.join(self.fields))) |
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470 | if label.lower() not in self.fields: |
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471 | return None |
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472 | s = '' |
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473 | if self.file_: |
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474 | mre = re.compile('\$\{[^\}]+\}') |
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475 | s = self.fields[label.lower()] |
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476 | expanded = True |
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477 | tm = False |
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478 | while expanded: |
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479 | expanded = False |
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480 | if tm: |
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481 | self._log('pc:get: "' + s + '"') |
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482 | ms = mre.findall(s) |
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483 | for m in ms: |
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484 | mn = m[2:-1] |
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485 | if mn.lower() in self.defines: |
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486 | s = s.replace(m, self.defines[mn.lower()]) |
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487 | expanded = True |
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488 | if label in package.get_recursion: |
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489 | for nt in package.node_types: |
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490 | if 'private' not in nt or ('private' in nt and private): |
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491 | for n in self.nodes[nt]: |
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492 | r = self.nodes[nt][n].get(label, private = private) |
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493 | self._log('node: %s: %s' % (self.nodes[nt][n].name(), r)) |
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494 | if r: |
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495 | s += ' ' + r |
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496 | elif label == 'libs' and len(self.libraries): |
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497 | s = '-l%s' % (self.name_[3:]) |
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498 | return self._filter(s) |
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499 | |
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500 | def check(self, op, version): |
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501 | self._log('checking: %s %s %s' % (self.name_, op, version)) |
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502 | ok = False |
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503 | if self.file_: |
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504 | pkgver = self.get('version') |
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505 | if pkgver is None: |
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506 | self._log('check: %s %s failed (no version)' % (op, version)) |
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507 | return False |
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508 | ok = package.check_versions(pkgver, op, version) |
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509 | if ok: |
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510 | self._log('check: %s %s %s ok' % (pkgver, op, version)) |
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511 | else: |
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512 | self._log('check: %s %s %s failed' % (pkgver, op, version)) |
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513 | else: |
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514 | if len(self.libraries): |
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515 | ok = True |
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516 | else: |
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517 | self._log('check: %s not found' % (self.name_)) |
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518 | return ok |
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519 | |
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520 | def check_package(libraries, args, output, src): |
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521 | ec = 1 |
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522 | pkg = None |
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523 | flags = { 'cflags': '', |
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524 | 'libs': '' } |
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525 | output('libraries: %s' % (libraries)) |
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526 | libs = package.splitter(libraries) |
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527 | for lib in libs: |
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528 | output('pkg: %s' % (lib)) |
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529 | pkg = package(lib[0], prefix = args.prefix, output = output, src = src) |
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530 | if args.dump: |
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531 | output(pkg) |
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532 | if pkg.exists(): |
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533 | if len(lib) == 1: |
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534 | if args.exact_version: |
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535 | if pkg.check('=', args.exact_version): |
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536 | ec = 0 |
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537 | elif args.atleast_version: |
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538 | if pkg.check('>=', args.atleast_version): |
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539 | ec = 0 |
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540 | elif args.max_version: |
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541 | if pkg.check('<=', args.max_version): |
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542 | ec = 0 |
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543 | else: |
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544 | ec = 0 |
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545 | else: |
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546 | if len(lib) != 3: |
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547 | raise error('invalid package check: %s' % (' '.join(lib))) |
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548 | if pkg.check(lib[1], lib[2]): |
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549 | ec = 0 |
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550 | if ec == 0: |
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551 | cflags = pkg.get('cflags') |
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552 | if cflags: |
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553 | flags['cflags'] += cflags |
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554 | libs = pkg.get('libs', private = False) |
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555 | if libs: |
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556 | flags['libs'] += libs |
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557 | break |
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558 | if ec > 0: |
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559 | break |
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560 | return ec, pkg, flags |
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561 | |
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