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