0,0 → 1,268 |
#!/usr/bin/env python |
""" |
Kernel configuration script |
""" |
import sys |
import os |
import re |
|
INPUT = 'kernel.config' |
OUTPUT = 'Makefile.config' |
TMPOUTPUT = 'Makefile.config.tmp' |
|
class DefaultDialog: |
"Wrapper dialog that tries to return default values" |
def __init__(self, dlg): |
self.dlg = dlg |
|
def set_title(self,text): |
self.dlg.set_title(text) |
|
def yesno(self, text, default=None): |
if default is not None: |
return default |
return self.dlg.yesno(text, default) |
def noyes(self, text, default=None): |
if default is not None: |
return default |
return self.dlg.noyes(text, default) |
|
def choice(self, text, choices, defopt=None): |
if defopt is not None: |
return choices[defopt][0] |
return self.dlg.choice(text, choices, defopt) |
|
class NoDialog: |
def __init__(self): |
self.printed = None |
self.title = 'HelenOS Configuration' |
|
def print_title(self): |
if not self.printed: |
sys.stdout.write("*** %s ***\n" % self.title) |
self.printed = True |
|
def set_title(self, text): |
self.title = text |
self.printed = False |
|
def noyes(self, text, default=None): |
if not default: |
default = 'n' |
return self.yesno(text, default) |
|
def yesno(self, text, default=None): |
self.print_title() |
|
if default != 'n': |
default = 'y' |
while 1: |
sys.stdout.write("%s (y/n)[%s]: " % (text,default)) |
inp = sys.stdin.readline() |
if not inp: |
raise EOFError |
inp = inp.strip().lower() |
if not inp: |
return default |
if inp == 'y': |
return 'y' |
elif inp == 'n': |
return 'n' |
|
def _print_choice(self, text, choices, defopt): |
sys.stdout.write('%s:\n' % text) |
for i,(text,descr) in enumerate(choices): |
sys.stdout.write('\t%2d. %s\n' % (i, descr)) |
if defopt is not None: |
sys.stdout.write('Enter choice number[%d]: ' % defopt) |
else: |
sys.stdout.write('Enter choice number: ') |
|
def choice(self, text, choices, defopt=None): |
self.print_title() |
while 1: |
self._print_choice(text, choices, defopt) |
inp = sys.stdin.readline() |
if not inp: |
raise EOFError |
if not inp.strip(): |
if defopt is not None: |
return choices[defopt][0] |
continue |
try: |
number = int(inp.strip()) |
except ValueError: |
continue |
if number < 0 or number >= len(choices): |
continue |
return choices[number][0] |
|
|
class Dialog(NoDialog): |
def __init__(self): |
NoDialog.__init__(self) |
self.dlgcmd = os.environ.get('DIALOG','dialog') |
self.title = 'HelenOS Configuration' |
|
if os.system('%s --print-maxsize >/dev/null 2>&1' % self.dlgcmd) != 0: |
raise NotImplementedError |
|
def set_title(self,text): |
self.title = text |
|
def calldlg(self,*args,**kw): |
indesc, outdesc = os.pipe() |
pid = os.fork() |
if not pid: |
os.close(2) |
os.dup(outdesc) |
os.close(indesc) |
|
dlgargs = [self.dlgcmd,'--title',self.title] |
for key,val in kw.items(): |
dlgargs.append('--'+key) |
dlgargs.append(val) |
dlgargs += args |
os.execlp(self.dlgcmd,*dlgargs) |
|
os.close(outdesc) |
errout = os.fdopen(indesc,'r') |
data = errout.read() |
errout.close() |
|
pid,status = os.wait() |
if not os.WIFEXITED(status): |
raise EOFError |
status = os.WEXITSTATUS(status) |
if status == 255: |
raise EOFError |
return status,data |
|
def yesno(self, text, default=None): |
text = text + ':' |
width = '50' |
height = '5' |
if len(text) < 48: |
text = ' '*int(((48-len(text))/2)) + text |
else: |
width = '0' |
height = '0' |
if default == 'n': |
res,data = self.calldlg('--defaultno','--yesno',text,height,width) |
else: |
res,data = self.calldlg('--yesno',text,height,width) |
|
if res == 0: |
return 'y' |
return 'n' |
|
def choice(self, text, choices, defopt=None): |
text = text + ':' |
width = '50' |
height = str(8 + len(choices)) |
args = [] |
for key,val in choices: |
args.append(key) |
args.append(val) |
|
kw = {} |
if defopt: |
kw['default-item'] = choices[defopt][0] |
res,data = self.calldlg('--nocancel','--menu',text,height,width, |
str(len(choices)),*args, **kw) |
if res: |
print data |
raise EOFError |
return data |
|
def read_defaults(fname): |
defaults = {} |
f = file(fname,'r') |
for line in f: |
res = re.match(r'^([^#]\w*)\s*=\s*(.*?)\s*$', line) |
if res: |
defaults[res.group(1)] = res.group(2) |
f.close() |
return defaults |
|
def parse_config(input, output, dlg, defaults={}): |
f = file(input, 'r') |
outf = file(output, 'w') |
|
outf.write('#########################################\n') |
outf.write('## AUTO-GENERATED FILE, DO NOT EDIT!!! ##\n') |
outf.write('#########################################\n\n') |
|
comment = '' |
default = None |
choices = [] |
for line in f: |
if line.startswith('!'): |
res = re.search(r'!\s*([^\s]+)\s*\((.*)\)\s*$', line) |
if not res: |
raise RuntimeError("Weird line: %s" % line) |
varname = res.group(1) |
vartype = res.group(2) |
|
default = defaults.get(varname,None) |
|
if vartype == 'y/n': |
result = dlg.yesno(comment, default) |
elif vartype == 'n/y': |
result = dlg.noyes(comment, default) |
elif vartype == 'choice': |
defopt = None |
if default is not None: |
for i,(key,val) in enumerate(choices): |
if key == default: |
defopt = i |
break |
result = dlg.choice(comment, choices, defopt) |
else: |
raise RuntimeError("Bad method: %s" % vartype) |
outf.write('%s = %s\n' % (varname, result)) |
# Clear cumulated values |
comment = '' |
default = None |
choices = [] |
continue |
|
if line.startswith('@'): |
res = re.match(r'@\s*"(.*?)"\s*(.*)$', line) |
if not res: |
raise RuntimeError("Bad line: %s" % line) |
choices.append((res.group(1), res.group(2))) |
continue |
|
outf.write(line) |
if re.match(r'^#[^#]', line): |
comment = line[1:].strip() |
elif line.startswith('##'): |
dlg.set_title(line[2:].strip()) |
|
outf.close() |
f.close() |
|
def main(): |
defaults = {} |
try: |
dlg = Dialog() |
except NotImplementedError: |
dlg = NoDialog() |
|
# Default run will update the configuration file |
# with newest options |
if len(sys.argv) == 2 and sys.argv[1]=='default': |
dlg = DefaultDialog(dlg) |
|
if os.path.exists(OUTPUT): |
defaults = read_defaults(OUTPUT) |
|
parse_config(INPUT, TMPOUTPUT, dlg, defaults) |
if os.path.exists(OUTPUT): |
os.unlink(OUTPUT) |
os.rename(TMPOUTPUT, OUTPUT) |
|
|
if __name__ == '__main__': |
main() |
Property changes: |
Added: svn:executable |
+* |
\ No newline at end of property |