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Rev | Author | Line No. | Line |
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545 | palkovsky | 1 | #!/usr/bin/env python |
2 | """ |
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3 | Kernel configuration script |
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4 | """ |
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5 | import sys |
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6 | import os |
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7 | import re |
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561 | decky | 8 | import commands |
545 | palkovsky | 9 | |
10 | INPUT = 'kernel.config' |
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11 | OUTPUT = 'Makefile.config' |
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12 | TMPOUTPUT = 'Makefile.config.tmp' |
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13 | |||
14 | class DefaultDialog: |
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15 | "Wrapper dialog that tries to return default values" |
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16 | def __init__(self, dlg): |
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17 | self.dlg = dlg |
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18 | |||
19 | def set_title(self,text): |
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20 | self.dlg.set_title(text) |
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21 | |||
22 | def yesno(self, text, default=None): |
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23 | if default is not None: |
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24 | return default |
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25 | return self.dlg.yesno(text, default) |
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26 | def noyes(self, text, default=None): |
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27 | if default is not None: |
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28 | return default |
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29 | return self.dlg.noyes(text, default) |
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30 | |||
31 | def choice(self, text, choices, defopt=None): |
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32 | if defopt is not None: |
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33 | return choices[defopt][0] |
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34 | return self.dlg.choice(text, choices, defopt) |
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35 | |||
36 | class NoDialog: |
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37 | def __init__(self): |
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38 | self.printed = None |
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39 | self.title = 'HelenOS Configuration' |
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40 | |||
41 | def print_title(self): |
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42 | if not self.printed: |
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552 | palkovsky | 43 | sys.stdout.write("\n*** %s ***\n" % self.title) |
545 | palkovsky | 44 | self.printed = True |
45 | |||
46 | def set_title(self, text): |
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47 | self.title = text |
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48 | self.printed = False |
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49 | |||
50 | def noyes(self, text, default=None): |
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51 | if not default: |
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52 | default = 'n' |
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53 | return self.yesno(text, default) |
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54 | |||
55 | def yesno(self, text, default=None): |
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56 | self.print_title() |
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57 | |||
58 | if default != 'n': |
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59 | default = 'y' |
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60 | while 1: |
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61 | sys.stdout.write("%s (y/n)[%s]: " % (text,default)) |
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62 | inp = sys.stdin.readline() |
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63 | if not inp: |
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64 | raise EOFError |
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65 | inp = inp.strip().lower() |
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66 | if not inp: |
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67 | return default |
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68 | if inp == 'y': |
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69 | return 'y' |
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70 | elif inp == 'n': |
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71 | return 'n' |
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72 | |||
73 | def _print_choice(self, text, choices, defopt): |
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74 | sys.stdout.write('%s:\n' % text) |
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75 | for i,(text,descr) in enumerate(choices): |
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76 | sys.stdout.write('\t%2d. %s\n' % (i, descr)) |
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77 | if defopt is not None: |
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78 | sys.stdout.write('Enter choice number[%d]: ' % defopt) |
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79 | else: |
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80 | sys.stdout.write('Enter choice number: ') |
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554 | palkovsky | 81 | |
82 | def menu(self, text, choices, button, defopt=None): |
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604 | palkovsky | 83 | self.title = 'Main menu' |
555 | palkovsky | 84 | menu = [] |
85 | for key, descr in choices: |
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86 | txt = key + (45-len(key))*' ' + ': ' + descr |
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87 | menu.append((key, txt)) |
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88 | |||
89 | return self.choice(text, [button] + menu) |
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545 | palkovsky | 90 | |
91 | def choice(self, text, choices, defopt=None): |
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92 | self.print_title() |
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93 | while 1: |
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94 | self._print_choice(text, choices, defopt) |
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95 | inp = sys.stdin.readline() |
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96 | if not inp: |
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97 | raise EOFError |
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98 | if not inp.strip(): |
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99 | if defopt is not None: |
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100 | return choices[defopt][0] |
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101 | continue |
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102 | try: |
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103 | number = int(inp.strip()) |
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104 | except ValueError: |
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105 | continue |
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106 | if number < 0 or number >= len(choices): |
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107 | continue |
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108 | return choices[number][0] |
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109 | |||
110 | |||
111 | class Dialog(NoDialog): |
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112 | def __init__(self): |
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113 | NoDialog.__init__(self) |
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114 | self.dlgcmd = os.environ.get('DIALOG','dialog') |
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554 | palkovsky | 115 | self.title = '' |
116 | self.backtitle = 'HelenOS Kernel Configuration' |
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545 | palkovsky | 117 | |
118 | if os.system('%s --print-maxsize >/dev/null 2>&1' % self.dlgcmd) != 0: |
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119 | raise NotImplementedError |
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120 | |||
121 | def set_title(self,text): |
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122 | self.title = text |
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123 | |||
124 | def calldlg(self,*args,**kw): |
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549 | palkovsky | 125 | "Wrapper for calling 'dialog' program" |
545 | palkovsky | 126 | indesc, outdesc = os.pipe() |
127 | pid = os.fork() |
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128 | if not pid: |
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129 | os.close(2) |
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130 | os.dup(outdesc) |
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131 | os.close(indesc) |
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132 | |||
554 | palkovsky | 133 | dlgargs = [self.dlgcmd,'--title',self.title, |
134 | '--backtitle', self.backtitle] |
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545 | palkovsky | 135 | for key,val in kw.items(): |
136 | dlgargs.append('--'+key) |
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137 | dlgargs.append(val) |
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138 | dlgargs += args |
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139 | os.execlp(self.dlgcmd,*dlgargs) |
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140 | |||
141 | os.close(outdesc) |
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558 | palkovsky | 142 | |
143 | try: |
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144 | errout = os.fdopen(indesc,'r') |
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145 | data = errout.read() |
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146 | errout.close() |
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147 | pid,status = os.wait() |
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148 | except: |
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149 | os.system('reset') # Reset terminal |
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150 | raise |
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151 | |||
545 | palkovsky | 152 | if not os.WIFEXITED(status): |
558 | palkovsky | 153 | os.system('reset') # Reset terminal |
545 | palkovsky | 154 | raise EOFError |
558 | palkovsky | 155 | |
545 | palkovsky | 156 | status = os.WEXITSTATUS(status) |
157 | if status == 255: |
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158 | raise EOFError |
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159 | return status,data |
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160 | |||
161 | def yesno(self, text, default=None): |
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558 | palkovsky | 162 | if text[-1] not in ('?',':'): |
163 | text = text + ':' |
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545 | palkovsky | 164 | width = '50' |
165 | height = '5' |
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166 | if len(text) < 48: |
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167 | text = ' '*int(((48-len(text))/2)) + text |
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168 | else: |
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169 | width = '0' |
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170 | height = '0' |
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171 | if default == 'n': |
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172 | res,data = self.calldlg('--defaultno','--yesno',text,height,width) |
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173 | else: |
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174 | res,data = self.calldlg('--yesno',text,height,width) |
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175 | |||
176 | if res == 0: |
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177 | return 'y' |
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178 | return 'n' |
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554 | palkovsky | 179 | |
180 | def menu(self, text, choices, button, defopt=None): |
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604 | palkovsky | 181 | self.title = 'Main menu' |
554 | palkovsky | 182 | text = text + ':' |
183 | width = '70' |
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184 | height = str(8 + len(choices)) |
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185 | args = [] |
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186 | for key,val in choices: |
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187 | args.append(key) |
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188 | args.append(val) |
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189 | |||
190 | kw = {} |
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191 | if defopt: |
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192 | kw['default-item'] = choices[defopt][0] |
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567 | palkovsky | 193 | res,data = self.calldlg('--ok-label','Change', |
194 | '--extra-label',button[1], |
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559 | palkovsky | 195 | '--extra-button', |
554 | palkovsky | 196 | '--menu',text,height,width, |
197 | str(len(choices)),*args,**kw) |
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559 | palkovsky | 198 | if res == 3: |
554 | palkovsky | 199 | return button[0] |
559 | palkovsky | 200 | if res == 1: # Cancel |
201 | sys.exit(1) |
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554 | palkovsky | 202 | elif res: |
203 | print data |
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204 | raise EOFError |
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205 | return data |
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545 | palkovsky | 206 | |
207 | def choice(self, text, choices, defopt=None): |
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208 | text = text + ':' |
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209 | width = '50' |
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210 | height = str(8 + len(choices)) |
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211 | args = [] |
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212 | for key,val in choices: |
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213 | args.append(key) |
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214 | args.append(val) |
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215 | |||
216 | kw = {} |
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217 | if defopt: |
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218 | kw['default-item'] = choices[defopt][0] |
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219 | res,data = self.calldlg('--nocancel','--menu',text,height,width, |
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220 | str(len(choices)),*args, **kw) |
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221 | if res: |
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222 | print data |
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223 | raise EOFError |
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224 | return data |
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225 | |||
547 | palkovsky | 226 | def read_defaults(fname,defaults): |
549 | palkovsky | 227 | "Read saved values from last configuration run" |
545 | palkovsky | 228 | f = file(fname,'r') |
229 | for line in f: |
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547 | palkovsky | 230 | res = re.match(r'^(?:#!# )?([^#]\w*)\s*=\s*(.*?)\s*$', line) |
545 | palkovsky | 231 | if res: |
232 | defaults[res.group(1)] = res.group(2) |
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233 | f.close() |
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234 | |||
568 | palkovsky | 235 | def check_condition(text, defaults, asked_names): |
236 | seen_vars = [ x[0] for x in asked_names ] |
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237 | ctype = 'cnf' |
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238 | if ')|' in text or '|(' in text: |
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239 | ctype = 'dnf' |
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240 | |||
241 | if ctype == 'cnf': |
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242 | conds = text.split('&') |
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243 | else: |
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244 | conds = text.split('|') |
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245 | |||
550 | palkovsky | 246 | for cond in conds: |
247 | if cond.startswith('(') and cond.endswith(')'): |
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248 | cond = cond[1:-1] |
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568 | palkovsky | 249 | |
250 | inside = check_inside(cond, defaults, ctype, seen_vars) |
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251 | |||
252 | if ctype == 'cnf' and not inside: |
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550 | palkovsky | 253 | return False |
568 | palkovsky | 254 | if ctype == 'dnf' and inside: |
255 | return True |
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550 | palkovsky | 256 | |
568 | palkovsky | 257 | if ctype == 'cnf': |
258 | return True |
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259 | return False |
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260 | |||
261 | def check_inside(text, defaults, ctype, seen_vars): |
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550 | palkovsky | 262 | """ |
263 | Check that the condition specified on input line is True |
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264 | |||
265 | only CNF is supported |
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266 | """ |
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568 | palkovsky | 267 | if ctype == 'cnf': |
268 | conds = text.split('|') |
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269 | else: |
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270 | conds = text.split('&') |
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547 | palkovsky | 271 | for cond in conds: |
550 | palkovsky | 272 | res = re.match(r'^(.*?)(!?=)(.*)$', cond) |
273 | if not res: |
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274 | raise RuntimeError("Invalid condition: %s" % cond) |
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275 | condname = res.group(1) |
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276 | oper = res.group(2) |
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277 | condval = res.group(3) |
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568 | palkovsky | 278 | if condname not in seen_vars: |
626 | palkovsky | 279 | varval = '' |
280 | ## raise RuntimeError("Variable %s not defined before being asked." %\ |
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281 | ## condname) |
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282 | elif not defaults.has_key(condname): |
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547 | palkovsky | 283 | raise RuntimeError("Condition var %s does not exist: %s" % \ |
550 | palkovsky | 284 | (condname,text)) |
626 | palkovsky | 285 | else: |
286 | varval = defaults[condname] |
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568 | palkovsky | 287 | if ctype == 'cnf': |
626 | palkovsky | 288 | if oper == '=' and condval == varval: |
568 | palkovsky | 289 | return True |
626 | palkovsky | 290 | if oper == '!=' and condval != varval: |
568 | palkovsky | 291 | return True |
292 | else: |
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626 | palkovsky | 293 | if oper== '=' and condval != varval: |
568 | palkovsky | 294 | return False |
626 | palkovsky | 295 | if oper== '!=' and condval == varval: |
568 | palkovsky | 296 | return False |
297 | if ctype=='cnf': |
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298 | return False |
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299 | return True |
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547 | palkovsky | 300 | |
554 | palkovsky | 301 | def parse_config(input, output, dlg, defaults={}, askonly=None): |
549 | palkovsky | 302 | "Parse configuration file and create Makefile.config on the fly" |
566 | palkovsky | 303 | def ask_the_question(dialog): |
556 | palkovsky | 304 | "Ask question based on the type of variables to ask" |
305 | # This is quite a hack, this thingy is written just to |
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306 | # have access to local variables.. |
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307 | if vartype == 'y/n': |
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566 | palkovsky | 308 | return dialog.yesno(comment, default) |
556 | palkovsky | 309 | elif vartype == 'n/y': |
566 | palkovsky | 310 | return dialog.noyes(comment, default) |
556 | palkovsky | 311 | elif vartype == 'choice': |
312 | defopt = None |
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313 | if default is not None: |
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314 | for i,(key,val) in enumerate(choices): |
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315 | if key == default: |
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316 | defopt = i |
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317 | break |
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566 | palkovsky | 318 | return dialog.choice(comment, choices, defopt) |
556 | palkovsky | 319 | else: |
320 | raise RuntimeError("Bad method: %s" % vartype) |
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321 | |||
322 | |||
545 | palkovsky | 323 | f = file(input, 'r') |
324 | outf = file(output, 'w') |
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325 | |||
326 | outf.write('#########################################\n') |
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327 | outf.write('## AUTO-GENERATED FILE, DO NOT EDIT!!! ##\n') |
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328 | outf.write('#########################################\n\n') |
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329 | |||
554 | palkovsky | 330 | asked_names = [] |
331 | |||
545 | palkovsky | 332 | comment = '' |
333 | default = None |
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334 | choices = [] |
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550 | palkovsky | 335 | for line in f: |
336 | if line.startswith('%'): |
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337 | res = re.match(r'^%\s*(?:\[(.*?)\])?\s*(.*)$', line) |
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338 | if not res: |
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339 | raise RuntimeError('Invalid command: %s' % line) |
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340 | if res.group(1): |
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568 | palkovsky | 341 | if not check_condition(res.group(1), defaults, |
342 | asked_names): |
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550 | palkovsky | 343 | continue |
344 | args = res.group(2).strip().split(' ') |
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345 | cmd = args[0].lower() |
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346 | args = args[1:] |
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554 | palkovsky | 347 | if cmd == 'saveas': |
550 | palkovsky | 348 | outf.write('%s = %s\n' % (args[1],defaults[args[0]])) |
560 | palkovsky | 349 | elif cmd == 'shellcmd': |
350 | varname = args[0] |
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351 | args = args[1:] |
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352 | for i,arg in enumerate(args): |
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353 | if arg.startswith('$'): |
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354 | args[i] = defaults[arg[1:]] |
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566 | palkovsky | 355 | data,status = commands.getstatusoutput(' '.join(args)) |
356 | if status: |
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560 | palkovsky | 357 | raise RuntimeError('Error running: %s' % ' '.join(args)) |
566 | palkovsky | 358 | outf.write('%s = %s\n' % (varname,data.strip())) |
550 | palkovsky | 359 | continue |
360 | |||
545 | palkovsky | 361 | if line.startswith('!'): |
549 | palkovsky | 362 | # Ask a question |
547 | palkovsky | 363 | res = re.search(r'!\s*(?:\[(.*?)\])?\s*([^\s]+)\s*\((.*)\)\s*$', line) |
545 | palkovsky | 364 | if not res: |
365 | raise RuntimeError("Weird line: %s" % line) |
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547 | palkovsky | 366 | varname = res.group(2) |
367 | vartype = res.group(3) |
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545 | palkovsky | 368 | |
369 | default = defaults.get(varname,None) |
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554 | palkovsky | 370 | |
547 | palkovsky | 371 | if res.group(1): |
568 | palkovsky | 372 | if not check_condition(res.group(1), defaults, |
373 | asked_names): |
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547 | palkovsky | 374 | if default is not None: |
375 | outf.write('#!# %s = %s\n' % (varname, default)) |
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550 | palkovsky | 376 | # Clear cumulated values |
377 | comment = '' |
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378 | default = None |
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379 | choices = [] |
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547 | palkovsky | 380 | continue |
554 | palkovsky | 381 | |
382 | asked_names.append((varname,comment)) |
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547 | palkovsky | 383 | |
556 | palkovsky | 384 | if default is None or not askonly or askonly == varname: |
566 | palkovsky | 385 | default = ask_the_question(dlg) |
386 | else: |
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387 | default = ask_the_question(DefaultDialog(dlg)) |
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554 | palkovsky | 388 | |
556 | palkovsky | 389 | outf.write('%s = %s\n' % (varname, default)) |
547 | palkovsky | 390 | # Remeber the selected value |
556 | palkovsky | 391 | defaults[varname] = default |
545 | palkovsky | 392 | # Clear cumulated values |
393 | comment = '' |
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394 | default = None |
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395 | choices = [] |
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396 | continue |
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397 | |||
398 | if line.startswith('@'): |
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549 | palkovsky | 399 | # Add new line into the 'choice array' |
547 | palkovsky | 400 | res = re.match(r'@\s*(?:\[(.*?)\])?\s*"(.*?)"\s*(.*)$', line) |
545 | palkovsky | 401 | if not res: |
402 | raise RuntimeError("Bad line: %s" % line) |
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547 | palkovsky | 403 | if res.group(1): |
568 | palkovsky | 404 | if not check_condition(res.group(1),defaults, |
405 | asked_names): |
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547 | palkovsky | 406 | continue |
407 | choices.append((res.group(2), res.group(3))) |
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545 | palkovsky | 408 | continue |
549 | palkovsky | 409 | |
410 | # All other things print to output file |
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545 | palkovsky | 411 | outf.write(line) |
412 | if re.match(r'^#[^#]', line): |
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549 | palkovsky | 413 | # Last comment before question will be displayed to the user |
545 | palkovsky | 414 | comment = line[1:].strip() |
552 | palkovsky | 415 | elif line.startswith('## '): |
549 | palkovsky | 416 | # Set title of the dialog window |
545 | palkovsky | 417 | dlg.set_title(line[2:].strip()) |
561 | decky | 418 | |
419 | outf.write('\n') |
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420 | outf.write('REVISION=%s\n' % commands.getoutput('svnversion . 2> /dev/null')) |
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421 | outf.write('TIMESTAMP=%s\n' % commands.getoutput('date "+%Y-%m-%d %H:%M:%S"')) |
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545 | palkovsky | 422 | outf.close() |
423 | f.close() |
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554 | palkovsky | 424 | return asked_names |
545 | palkovsky | 425 | |
426 | def main(): |
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550 | palkovsky | 427 | defaults = {} |
545 | palkovsky | 428 | try: |
429 | dlg = Dialog() |
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430 | except NotImplementedError: |
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431 | dlg = NoDialog() |
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432 | |||
554 | palkovsky | 433 | if len(sys.argv) == 2 and sys.argv[1]=='default': |
434 | defmode = True |
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435 | else: |
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436 | defmode = False |
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437 | |||
545 | palkovsky | 438 | # Default run will update the configuration file |
439 | # with newest options |
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440 | if os.path.exists(OUTPUT): |
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547 | palkovsky | 441 | read_defaults(OUTPUT, defaults) |
555 | palkovsky | 442 | |
443 | # Dry run only with defaults |
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554 | palkovsky | 444 | varnames = parse_config(INPUT, TMPOUTPUT, DefaultDialog(dlg), defaults) |
445 | # If not in default mode, present selection of all possibilities |
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446 | if not defmode: |
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447 | defopt = 0 |
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448 | while 1: |
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555 | palkovsky | 449 | # varnames contains variable names that were in the |
450 | # last question set |
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554 | palkovsky | 451 | choices = [ (x[1],defaults[x[0]]) for x in varnames ] |
452 | res = dlg.menu('Configuration',choices,('save','Save'),defopt) |
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453 | if res == 'save': |
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454 | parse_config(INPUT, TMPOUTPUT, DefaultDialog(dlg), defaults) |
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455 | break |
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456 | # transfer description back to varname |
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457 | for i,(vname,descr) in enumerate(varnames): |
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458 | if res == descr: |
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459 | defopt = i |
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460 | break |
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555 | palkovsky | 461 | # Ask the user a simple question, produce output |
462 | # as if the user answered all the other questions |
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463 | # with default answer |
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554 | palkovsky | 464 | varnames = parse_config(INPUT, TMPOUTPUT, dlg, defaults, |
465 | askonly=varnames[i][0]) |
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466 | |||
467 | |||
545 | palkovsky | 468 | if os.path.exists(OUTPUT): |
469 | os.unlink(OUTPUT) |
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470 | os.rename(TMPOUTPUT, OUTPUT) |
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558 | palkovsky | 471 | |
472 | if not defmode and dlg.yesno('Rebuild kernel?') == 'y': |
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568 | palkovsky | 473 | os.execlp('make','make','clean','build') |
545 | palkovsky | 474 | |
475 | if __name__ == '__main__': |
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476 | main() |