Rev 706 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 706 | decky | 1 | #!/usr/bin/env python |
| 2 | """ |
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| 1650 | palkovsky | 3 | Kernel configuration script |
| 706 | decky | 4 | """ |
| 5 | import sys |
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| 6 | import os |
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| 7 | import re |
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| 8 | import commands |
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| 9 | |||
| 1650 | palkovsky | 10 | INPUT = 'kernel.config' |
| 706 | decky | 11 | OUTPUT = 'Makefile.config' |
| 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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| 43 | sys.stdout.write("\n*** %s ***\n" % self.title) |
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| 44 | self.printed = True |
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| 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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| 81 | |||
| 82 | def menu(self, text, choices, button, defopt=None): |
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| 83 | self.title = 'Main menu' |
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| 84 | menu = [] |
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| 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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| 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 | |||
| 1650 | palkovsky | 111 | def eof_checker(fnc): |
| 112 | def wrapper(self, *args, **kw): |
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| 113 | try: |
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| 114 | return fnc(self, *args, **kw) |
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| 115 | except EOFError: |
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| 116 | return getattr(self.bckdialog,fnc.func_name)(*args, **kw) |
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| 117 | return wrapper |
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| 118 | |||
| 706 | decky | 119 | class Dialog(NoDialog): |
| 120 | def __init__(self): |
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| 121 | NoDialog.__init__(self) |
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| 122 | self.dlgcmd = os.environ.get('DIALOG','dialog') |
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| 123 | self.title = '' |
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| 1650 | palkovsky | 124 | self.backtitle = 'HelenOS Kernel Configuration' |
| 706 | decky | 125 | |
| 126 | if os.system('%s --print-maxsize >/dev/null 2>&1' % self.dlgcmd) != 0: |
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| 127 | raise NotImplementedError |
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| 1650 | palkovsky | 128 | |
| 129 | self.bckdialog = NoDialog() |
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| 706 | decky | 130 | |
| 131 | def set_title(self,text): |
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| 132 | self.title = text |
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| 1650 | palkovsky | 133 | self.bckdialog.set_title(text) |
| 706 | decky | 134 | |
| 135 | def calldlg(self,*args,**kw): |
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| 136 | "Wrapper for calling 'dialog' program" |
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| 137 | indesc, outdesc = os.pipe() |
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| 138 | pid = os.fork() |
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| 139 | if not pid: |
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| 140 | os.close(2) |
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| 141 | os.dup(outdesc) |
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| 142 | os.close(indesc) |
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| 143 | |||
| 144 | dlgargs = [self.dlgcmd,'--title',self.title, |
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| 145 | '--backtitle', self.backtitle] |
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| 146 | for key,val in kw.items(): |
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| 147 | dlgargs.append('--'+key) |
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| 148 | dlgargs.append(val) |
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| 149 | dlgargs += args |
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| 150 | os.execlp(self.dlgcmd,*dlgargs) |
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| 151 | |||
| 152 | os.close(outdesc) |
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| 153 | |||
| 154 | try: |
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| 155 | errout = os.fdopen(indesc,'r') |
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| 156 | data = errout.read() |
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| 157 | errout.close() |
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| 158 | pid,status = os.wait() |
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| 159 | except: |
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| 160 | os.system('reset') # Reset terminal |
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| 161 | raise |
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| 162 | |||
| 163 | if not os.WIFEXITED(status): |
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| 164 | os.system('reset') # Reset terminal |
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| 165 | raise EOFError |
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| 166 | |||
| 167 | status = os.WEXITSTATUS(status) |
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| 168 | if status == 255: |
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| 169 | raise EOFError |
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| 170 | return status,data |
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| 171 | |||
| 172 | def yesno(self, text, default=None): |
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| 173 | if text[-1] not in ('?',':'): |
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| 174 | text = text + ':' |
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| 175 | width = '50' |
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| 176 | height = '5' |
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| 177 | if len(text) < 48: |
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| 178 | text = ' '*int(((48-len(text))/2)) + text |
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| 179 | else: |
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| 180 | width = '0' |
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| 181 | height = '0' |
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| 182 | if default == 'n': |
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| 183 | res,data = self.calldlg('--defaultno','--yesno',text,height,width) |
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| 184 | else: |
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| 185 | res,data = self.calldlg('--yesno',text,height,width) |
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| 186 | |||
| 187 | if res == 0: |
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| 188 | return 'y' |
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| 189 | return 'n' |
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| 1650 | palkovsky | 190 | yesno = eof_checker(yesno) |
| 706 | decky | 191 | |
| 192 | def menu(self, text, choices, button, defopt=None): |
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| 193 | self.title = 'Main menu' |
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| 194 | text = text + ':' |
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| 195 | width = '70' |
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| 196 | height = str(8 + len(choices)) |
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| 197 | args = [] |
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| 198 | for key,val in choices: |
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| 199 | args.append(key) |
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| 200 | args.append(val) |
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| 201 | |||
| 202 | kw = {} |
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| 203 | if defopt: |
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| 204 | kw['default-item'] = choices[defopt][0] |
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| 205 | res,data = self.calldlg('--ok-label','Change', |
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| 206 | '--extra-label',button[1], |
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| 207 | '--extra-button', |
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| 208 | '--menu',text,height,width, |
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| 209 | str(len(choices)),*args,**kw) |
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| 210 | if res == 3: |
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| 211 | return button[0] |
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| 212 | if res == 1: # Cancel |
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| 213 | sys.exit(1) |
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| 214 | elif res: |
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| 215 | print data |
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| 216 | raise EOFError |
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| 217 | return data |
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| 1650 | palkovsky | 218 | menu = eof_checker(menu) |
| 706 | decky | 219 | |
| 220 | def choice(self, text, choices, defopt=None): |
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| 221 | text = text + ':' |
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| 222 | width = '50' |
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| 223 | height = str(8 + len(choices)) |
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| 224 | args = [] |
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| 225 | for key,val in choices: |
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| 226 | args.append(key) |
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| 227 | args.append(val) |
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| 228 | |||
| 229 | kw = {} |
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| 230 | if defopt: |
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| 231 | kw['default-item'] = choices[defopt][0] |
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| 232 | res,data = self.calldlg('--nocancel','--menu',text,height,width, |
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| 233 | str(len(choices)),*args, **kw) |
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| 234 | if res: |
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| 235 | print data |
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| 236 | raise EOFError |
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| 237 | return data |
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| 1650 | palkovsky | 238 | choice = eof_checker(choice) |
| 706 | decky | 239 | |
| 240 | def read_defaults(fname,defaults): |
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| 241 | "Read saved values from last configuration run" |
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| 242 | f = file(fname,'r') |
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| 243 | for line in f: |
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| 244 | res = re.match(r'^(?:#!# )?([^#]\w*)\s*=\s*(.*?)\s*$', line) |
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| 245 | if res: |
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| 246 | defaults[res.group(1)] = res.group(2) |
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| 247 | f.close() |
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| 248 | |||
| 249 | def check_condition(text, defaults, asked_names): |
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| 250 | seen_vars = [ x[0] for x in asked_names ] |
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| 251 | ctype = 'cnf' |
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| 252 | if ')|' in text or '|(' in text: |
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| 253 | ctype = 'dnf' |
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| 254 | |||
| 255 | if ctype == 'cnf': |
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| 256 | conds = text.split('&') |
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| 257 | else: |
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| 258 | conds = text.split('|') |
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| 259 | |||
| 260 | for cond in conds: |
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| 261 | if cond.startswith('(') and cond.endswith(')'): |
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| 262 | cond = cond[1:-1] |
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| 263 | |||
| 264 | inside = check_inside(cond, defaults, ctype, seen_vars) |
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| 265 | |||
| 266 | if ctype == 'cnf' and not inside: |
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| 267 | return False |
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| 268 | if ctype == 'dnf' and inside: |
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| 269 | return True |
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| 270 | |||
| 271 | if ctype == 'cnf': |
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| 272 | return True |
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| 273 | return False |
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| 274 | |||
| 275 | def check_inside(text, defaults, ctype, seen_vars): |
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| 276 | """ |
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| 277 | Check that the condition specified on input line is True |
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| 278 | |||
| 279 | only CNF is supported |
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| 280 | """ |
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| 281 | if ctype == 'cnf': |
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| 282 | conds = text.split('|') |
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| 283 | else: |
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| 284 | conds = text.split('&') |
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| 285 | for cond in conds: |
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| 286 | res = re.match(r'^(.*?)(!?=)(.*)$', cond) |
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| 287 | if not res: |
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| 288 | raise RuntimeError("Invalid condition: %s" % cond) |
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| 289 | condname = res.group(1) |
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| 290 | oper = res.group(2) |
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| 291 | condval = res.group(3) |
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| 292 | if condname not in seen_vars: |
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| 293 | varval = '' |
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| 294 | ## raise RuntimeError("Variable %s not defined before being asked." %\ |
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| 295 | ## condname) |
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| 296 | elif not defaults.has_key(condname): |
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| 297 | raise RuntimeError("Condition var %s does not exist: %s" % \ |
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| 298 | (condname,text)) |
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| 299 | else: |
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| 300 | varval = defaults[condname] |
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| 301 | if ctype == 'cnf': |
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| 302 | if oper == '=' and condval == varval: |
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| 303 | return True |
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| 304 | if oper == '!=' and condval != varval: |
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| 305 | return True |
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| 306 | else: |
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| 307 | if oper== '=' and condval != varval: |
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| 308 | return False |
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| 309 | if oper== '!=' and condval == varval: |
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| 310 | return False |
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| 311 | if ctype=='cnf': |
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| 312 | return False |
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| 313 | return True |
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| 314 | |||
| 315 | def parse_config(input, output, dlg, defaults={}, askonly=None): |
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| 316 | "Parse configuration file and create Makefile.config on the fly" |
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| 317 | def ask_the_question(dialog): |
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| 318 | "Ask question based on the type of variables to ask" |
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| 319 | # This is quite a hack, this thingy is written just to |
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| 320 | # have access to local variables.. |
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| 321 | if vartype == 'y/n': |
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| 322 | return dialog.yesno(comment, default) |
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| 323 | elif vartype == 'n/y': |
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| 324 | return dialog.noyes(comment, default) |
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| 325 | elif vartype == 'choice': |
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| 326 | defopt = None |
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| 327 | if default is not None: |
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| 328 | for i,(key,val) in enumerate(choices): |
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| 329 | if key == default: |
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| 330 | defopt = i |
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| 331 | break |
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| 332 | return dialog.choice(comment, choices, defopt) |
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| 333 | else: |
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| 334 | raise RuntimeError("Bad method: %s" % vartype) |
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| 335 | |||
| 336 | |||
| 337 | f = file(input, 'r') |
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| 338 | outf = file(output, 'w') |
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| 339 | |||
| 340 | outf.write('#########################################\n') |
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| 341 | outf.write('## AUTO-GENERATED FILE, DO NOT EDIT!!! ##\n') |
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| 342 | outf.write('#########################################\n\n') |
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| 343 | |||
| 344 | asked_names = [] |
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| 345 | |||
| 346 | comment = '' |
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| 347 | default = None |
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| 348 | choices = [] |
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| 349 | for line in f: |
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| 350 | if line.startswith('%'): |
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| 351 | res = re.match(r'^%\s*(?:\[(.*?)\])?\s*(.*)$', line) |
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| 352 | if not res: |
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| 353 | raise RuntimeError('Invalid command: %s' % line) |
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| 354 | if res.group(1): |
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| 355 | if not check_condition(res.group(1), defaults, |
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| 356 | asked_names): |
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| 357 | continue |
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| 358 | args = res.group(2).strip().split(' ') |
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| 359 | cmd = args[0].lower() |
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| 360 | args = args[1:] |
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| 361 | if cmd == 'saveas': |
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| 362 | outf.write('%s = %s\n' % (args[1],defaults[args[0]])) |
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| 363 | elif cmd == 'shellcmd': |
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| 364 | varname = args[0] |
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| 365 | args = args[1:] |
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| 366 | for i,arg in enumerate(args): |
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| 367 | if arg.startswith('$'): |
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| 368 | args[i] = defaults[arg[1:]] |
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| 369 | data,status = commands.getstatusoutput(' '.join(args)) |
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| 370 | if status: |
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| 371 | raise RuntimeError('Error running: %s' % ' '.join(args)) |
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| 372 | outf.write('%s = %s\n' % (varname,data.strip())) |
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| 373 | continue |
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| 374 | |||
| 375 | if line.startswith('!'): |
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| 376 | # Ask a question |
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| 377 | res = re.search(r'!\s*(?:\[(.*?)\])?\s*([^\s]+)\s*\((.*)\)\s*$', line) |
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| 378 | if not res: |
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| 379 | raise RuntimeError("Weird line: %s" % line) |
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| 380 | varname = res.group(2) |
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| 381 | vartype = res.group(3) |
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| 382 | |||
| 383 | default = defaults.get(varname,None) |
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| 384 | |||
| 385 | if res.group(1): |
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| 386 | if not check_condition(res.group(1), defaults, |
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| 387 | asked_names): |
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| 388 | if default is not None: |
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| 389 | outf.write('#!# %s = %s\n' % (varname, default)) |
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| 390 | # Clear cumulated values |
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| 391 | comment = '' |
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| 392 | default = None |
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| 393 | choices = [] |
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| 394 | continue |
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| 395 | |||
| 396 | asked_names.append((varname,comment)) |
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| 397 | |||
| 398 | if default is None or not askonly or askonly == varname: |
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| 399 | default = ask_the_question(dlg) |
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| 400 | else: |
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| 401 | default = ask_the_question(DefaultDialog(dlg)) |
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| 402 | |||
| 403 | outf.write('%s = %s\n' % (varname, default)) |
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| 404 | # Remeber the selected value |
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| 405 | defaults[varname] = default |
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| 406 | # Clear cumulated values |
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| 407 | comment = '' |
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| 408 | default = None |
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| 409 | choices = [] |
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| 410 | continue |
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| 411 | |||
| 412 | if line.startswith('@'): |
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| 413 | # Add new line into the 'choice array' |
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| 414 | res = re.match(r'@\s*(?:\[(.*?)\])?\s*"(.*?)"\s*(.*)$', line) |
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| 415 | if not res: |
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| 416 | raise RuntimeError("Bad line: %s" % line) |
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| 417 | if res.group(1): |
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| 418 | if not check_condition(res.group(1),defaults, |
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| 419 | asked_names): |
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| 420 | continue |
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| 421 | choices.append((res.group(2), res.group(3))) |
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| 422 | continue |
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| 423 | |||
| 424 | # All other things print to output file |
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| 425 | outf.write(line) |
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| 426 | if re.match(r'^#[^#]', line): |
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| 427 | # Last comment before question will be displayed to the user |
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| 428 | comment = line[1:].strip() |
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| 429 | elif line.startswith('## '): |
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| 430 | # Set title of the dialog window |
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| 431 | dlg.set_title(line[2:].strip()) |
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| 432 | |||
| 433 | outf.write('\n') |
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| 434 | outf.write('REVISION = %s\n' % commands.getoutput('svnversion . 2> /dev/null')) |
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| 435 | outf.write('TIMESTAMP = %s\n' % commands.getoutput('date "+%Y-%m-%d %H:%M:%S"')) |
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| 436 | outf.close() |
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| 437 | f.close() |
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| 438 | return asked_names |
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| 439 | |||
| 440 | def main(): |
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| 441 | defaults = {} |
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| 442 | try: |
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| 443 | dlg = Dialog() |
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| 444 | except NotImplementedError: |
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| 445 | dlg = NoDialog() |
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| 446 | |||
| 447 | if len(sys.argv) >= 2 and sys.argv[1]=='default': |
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| 448 | defmode = True |
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| 449 | else: |
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| 450 | defmode = False |
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| 451 | |||
| 452 | # Default run will update the configuration file |
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| 453 | # with newest options |
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| 454 | if os.path.exists(OUTPUT): |
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| 455 | read_defaults(OUTPUT, defaults) |
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| 456 | |||
| 457 | # Get ARCH from command line if specified |
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| 458 | if len(sys.argv) >= 3: |
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| 459 | defaults['ARCH'] = sys.argv[2] |
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| 460 | |||
| 461 | # Dry run only with defaults |
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| 462 | varnames = parse_config(INPUT, TMPOUTPUT, DefaultDialog(dlg), defaults) |
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| 463 | # If not in default mode, present selection of all possibilities |
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| 464 | if not defmode: |
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| 465 | defopt = 0 |
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| 466 | while 1: |
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| 467 | # varnames contains variable names that were in the |
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| 468 | # last question set |
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| 469 | choices = [ (x[1],defaults[x[0]]) for x in varnames ] |
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| 470 | res = dlg.menu('Configuration',choices,('save','Save'),defopt) |
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| 471 | if res == 'save': |
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| 472 | parse_config(INPUT, TMPOUTPUT, DefaultDialog(dlg), defaults) |
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| 473 | break |
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| 474 | # transfer description back to varname |
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| 475 | for i,(vname,descr) in enumerate(varnames): |
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| 476 | if res == descr: |
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| 477 | defopt = i |
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| 478 | break |
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| 479 | # Ask the user a simple question, produce output |
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| 480 | # as if the user answered all the other questions |
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| 481 | # with default answer |
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| 482 | varnames = parse_config(INPUT, TMPOUTPUT, dlg, defaults, |
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| 483 | askonly=varnames[i][0]) |
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| 484 | |||
| 485 | |||
| 486 | if os.path.exists(OUTPUT): |
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| 487 | os.unlink(OUTPUT) |
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| 488 | os.rename(TMPOUTPUT, OUTPUT) |
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| 489 | |||
| 1650 | palkovsky | 490 | if not defmode and dlg.yesno('Rebuild kernel?') == 'y': |
| 706 | decky | 491 | os.execlp('make','make','clean','build') |
| 492 | |||
| 493 | if __name__ == '__main__': |
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| 494 | main() |