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