0,0 → 1,480 |
#!/usr/bin/env python |
""" |
user space configuration script |
""" |
import sys |
import os |
import re |
import commands |
|
INPUT = 'uspace.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("\n*** %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 menu(self, text, choices, button, defopt=None): |
self.title = 'Main menu' |
menu = [] |
for key, descr in choices: |
txt = key + (45-len(key))*' ' + ': ' + descr |
menu.append((key, txt)) |
|
return self.choice(text, [button] + menu) |
|
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 = '' |
self.backtitle = 'HelenOS User Space 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): |
"Wrapper for calling 'dialog' program" |
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, |
'--backtitle', self.backtitle] |
for key,val in kw.items(): |
dlgargs.append('--'+key) |
dlgargs.append(val) |
dlgargs += args |
os.execlp(self.dlgcmd,*dlgargs) |
|
os.close(outdesc) |
|
try: |
errout = os.fdopen(indesc,'r') |
data = errout.read() |
errout.close() |
pid,status = os.wait() |
except: |
os.system('reset') # Reset terminal |
raise |
|
if not os.WIFEXITED(status): |
os.system('reset') # Reset terminal |
raise EOFError |
|
status = os.WEXITSTATUS(status) |
if status == 255: |
raise EOFError |
return status,data |
|
def yesno(self, text, default=None): |
if text[-1] not in ('?',':'): |
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 menu(self, text, choices, button, defopt=None): |
self.title = 'Main menu' |
text = text + ':' |
width = '70' |
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('--ok-label','Change', |
'--extra-label',button[1], |
'--extra-button', |
'--menu',text,height,width, |
str(len(choices)),*args,**kw) |
if res == 3: |
return button[0] |
if res == 1: # Cancel |
sys.exit(1) |
elif res: |
print data |
raise EOFError |
return data |
|
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): |
"Read saved values from last configuration run" |
f = file(fname,'r') |
for line in f: |
res = re.match(r'^(?:#!# )?([^#]\w*)\s*=\s*(.*?)\s*$', line) |
if res: |
defaults[res.group(1)] = res.group(2) |
f.close() |
|
def check_condition(text, defaults, asked_names): |
seen_vars = [ x[0] for x in asked_names ] |
ctype = 'cnf' |
if ')|' in text or '|(' in text: |
ctype = 'dnf' |
|
if ctype == 'cnf': |
conds = text.split('&') |
else: |
conds = text.split('|') |
|
for cond in conds: |
if cond.startswith('(') and cond.endswith(')'): |
cond = cond[1:-1] |
|
inside = check_inside(cond, defaults, ctype, seen_vars) |
|
if ctype == 'cnf' and not inside: |
return False |
if ctype == 'dnf' and inside: |
return True |
|
if ctype == 'cnf': |
return True |
return False |
|
def check_inside(text, defaults, ctype, seen_vars): |
""" |
Check that the condition specified on input line is True |
|
only CNF is supported |
""" |
if ctype == 'cnf': |
conds = text.split('|') |
else: |
conds = text.split('&') |
for cond in conds: |
res = re.match(r'^(.*?)(!?=)(.*)$', cond) |
if not res: |
raise RuntimeError("Invalid condition: %s" % cond) |
condname = res.group(1) |
oper = res.group(2) |
condval = res.group(3) |
if condname not in seen_vars: |
varval = '' |
## raise RuntimeError("Variable %s not defined before being asked." %\ |
## condname) |
elif not defaults.has_key(condname): |
raise RuntimeError("Condition var %s does not exist: %s" % \ |
(condname,text)) |
else: |
varval = defaults[condname] |
if ctype == 'cnf': |
if oper == '=' and condval == varval: |
return True |
if oper == '!=' and condval != varval: |
return True |
else: |
if oper== '=' and condval != varval: |
return False |
if oper== '!=' and condval == varval: |
return False |
if ctype=='cnf': |
return False |
return True |
|
def parse_config(input, output, dlg, defaults={}, askonly=None): |
"Parse configuration file and create Makefile.config on the fly" |
def ask_the_question(dialog): |
"Ask question based on the type of variables to ask" |
# This is quite a hack, this thingy is written just to |
# have access to local variables.. |
if vartype == 'y/n': |
return dialog.yesno(comment, default) |
elif vartype == 'n/y': |
return dialog.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 |
return dialog.choice(comment, choices, defopt) |
else: |
raise RuntimeError("Bad method: %s" % vartype) |
|
|
f = file(input, 'r') |
outf = file(output, 'w') |
|
outf.write('#########################################\n') |
outf.write('## AUTO-GENERATED FILE, DO NOT EDIT!!! ##\n') |
outf.write('#########################################\n\n') |
|
asked_names = [] |
|
comment = '' |
default = None |
choices = [] |
for line in f: |
if line.startswith('%'): |
res = re.match(r'^%\s*(?:\[(.*?)\])?\s*(.*)$', line) |
if not res: |
raise RuntimeError('Invalid command: %s' % line) |
if res.group(1): |
if not check_condition(res.group(1), defaults, |
asked_names): |
continue |
args = res.group(2).strip().split(' ') |
cmd = args[0].lower() |
args = args[1:] |
if cmd == 'saveas': |
outf.write('%s = %s\n' % (args[1],defaults[args[0]])) |
elif cmd == 'shellcmd': |
varname = args[0] |
args = args[1:] |
for i,arg in enumerate(args): |
if arg.startswith('$'): |
args[i] = defaults[arg[1:]] |
data,status = commands.getstatusoutput(' '.join(args)) |
if status: |
raise RuntimeError('Error running: %s' % ' '.join(args)) |
outf.write('%s = %s\n' % (varname,data.strip())) |
continue |
|
if line.startswith('!'): |
# Ask a question |
res = re.search(r'!\s*(?:\[(.*?)\])?\s*([^\s]+)\s*\((.*)\)\s*$', line) |
if not res: |
raise RuntimeError("Weird line: %s" % line) |
varname = res.group(2) |
vartype = res.group(3) |
|
default = defaults.get(varname,None) |
|
if res.group(1): |
if not check_condition(res.group(1), defaults, |
asked_names): |
if default is not None: |
outf.write('#!# %s = %s\n' % (varname, default)) |
# Clear cumulated values |
comment = '' |
default = None |
choices = [] |
continue |
|
asked_names.append((varname,comment)) |
|
if default is None or not askonly or askonly == varname: |
default = ask_the_question(dlg) |
else: |
default = ask_the_question(DefaultDialog(dlg)) |
|
outf.write('%s = %s\n' % (varname, default)) |
# Remeber the selected value |
defaults[varname] = default |
# Clear cumulated values |
comment = '' |
default = None |
choices = [] |
continue |
|
if line.startswith('@'): |
# Add new line into the 'choice array' |
res = re.match(r'@\s*(?:\[(.*?)\])?\s*"(.*?)"\s*(.*)$', line) |
if not res: |
raise RuntimeError("Bad line: %s" % line) |
if res.group(1): |
if not check_condition(res.group(1),defaults, |
asked_names): |
continue |
choices.append((res.group(2), res.group(3))) |
continue |
|
# All other things print to output file |
outf.write(line) |
if re.match(r'^#[^#]', line): |
# Last comment before question will be displayed to the user |
comment = line[1:].strip() |
elif line.startswith('## '): |
# Set title of the dialog window |
dlg.set_title(line[2:].strip()) |
|
outf.write('\n') |
outf.write('REVISION = %s\n' % commands.getoutput('svnversion . 2> /dev/null')) |
outf.write('TIMESTAMP = %s\n' % commands.getoutput('date "+%Y-%m-%d %H:%M:%S"')) |
outf.close() |
f.close() |
return asked_names |
|
def main(): |
defaults = {} |
try: |
dlg = Dialog() |
except NotImplementedError: |
dlg = NoDialog() |
|
if len(sys.argv) >= 2 and sys.argv[1]=='default': |
defmode = True |
else: |
defmode = False |
|
# Default run will update the configuration file |
# with newest options |
if os.path.exists(OUTPUT): |
read_defaults(OUTPUT, defaults) |
|
# Get ARCH from command line if specified |
if len(sys.argv) >= 3: |
defaults['ARCH'] = sys.argv[2] |
|
# Dry run only with defaults |
varnames = parse_config(INPUT, TMPOUTPUT, DefaultDialog(dlg), defaults) |
# If not in default mode, present selection of all possibilities |
if not defmode: |
defopt = 0 |
while 1: |
# varnames contains variable names that were in the |
# last question set |
choices = [ (x[1],defaults[x[0]]) for x in varnames ] |
res = dlg.menu('Configuration',choices,('save','Save'),defopt) |
if res == 'save': |
parse_config(INPUT, TMPOUTPUT, DefaultDialog(dlg), defaults) |
break |
# transfer description back to varname |
for i,(vname,descr) in enumerate(varnames): |
if res == descr: |
defopt = i |
break |
# Ask the user a simple question, produce output |
# as if the user answered all the other questions |
# with default answer |
varnames = parse_config(INPUT, TMPOUTPUT, dlg, defaults, |
askonly=varnames[i][0]) |
|
|
if os.path.exists(OUTPUT): |
os.unlink(OUTPUT) |
os.rename(TMPOUTPUT, OUTPUT) |
|
if not defmode and dlg.yesno('Rebuild user space?') == 'y': |
os.execlp('make','make','clean','build') |
|
if __name__ == '__main__': |
main() |
Property changes: |
Added: svn:executable |
+* |
\ No newline at end of property |