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#!/usr/bin/env python
import os, re, sys, textwrap
import api_data
from dist import compare_srcfile
# Temporary file.
tmp_file = '__tmp'
#####################################################################
# Update wiredtiger.in with doxygen comments
#####################################################################
f='../src/include/wiredtiger.in'
tfile = open(tmp_file, 'w')
cbegin_re = re.compile(r'(\s*\*\s*)@config(?:empty|start)\{(.*?),.*\}')
def gettype(c):
'''Derive the type of a config item'''
checks = c.flags
ctype = checks.get('type', None)
if not ctype and ('min' in checks or 'max' in checks):
ctype = 'int'
return ctype or 'string'
def typedesc(c):
'''Descripe what type of value is expected for the given config item'''
checks = c.flags
cmin = str(checks.get('min', ''))
cmax = str(checks.get('max', ''))
choices = checks.get('choices', [])
ctype = gettype(c)
desc = {
'boolean' : 'a boolean flag',
'format' : 'a format string',
'int' : 'an integer',
'list' : 'a list',
'category': 'a set of related configuration options defined below',
'string' : 'a string'}[ctype]
if cmin and cmax:
desc += ' between ' + cmin + ' and ' + cmax
elif cmin:
desc += ' greater than or equal to ' + cmin
elif cmax:
desc += ' no more than ' + cmax
if choices:
if ctype == 'list':
desc += ', with values chosen from the following options: '
else:
desc += ', chosen from the following options: '
desc += ', '.join('\\c "' + c + '"' for c in choices)
elif ctype == 'list':
desc += ' of strings'
return desc
def parseconfig(c, name_indent=''):
ctype = gettype(c)
desc = textwrap.dedent(c.desc) + '.'
desc = desc.replace(',', '\\,')
default = '\\c ' + str(c.default) if c.default or ctype == 'int' \
else 'empty'
name = name_indent + c.name
tdesc = typedesc(c)
if ctype != 'category':
tdesc += '; default ' + default
else:
name += ' = ('
tdesc += '.'
tdesc = tdesc.replace(',', '\\,')
output = '@config{' + ','.join((name, desc, tdesc)) + '}'
if ctype == 'category':
for subc in c.subconfig:
output += parseconfig(subc, name_indent + (' ' * 4))
output += '@config{ ),,}'
return output
def getconfcheck(c):
check = '{ "' + c.name + '", "' + gettype(c) + '",'
cstr = checkstr(c)
sstr = getsubconfigstr(c)
if cstr != 'NULL':
cstr = '"\n\t "'.join(w.wrap(cstr))
# Manually re-wrap when there is a check string to avoid ugliness
# between string and non-string wrapping
if len(check + ' ' + cstr + ',\n\t ' + sstr + '},') >= 68:
check = check + '\n\t ' + cstr + ',\n\t ' + sstr + '},'
else:
check = check + ' ' + cstr + ', ' + sstr + '},'
else:
check = '\n\t '.join(w.wrap(check + ' ' + cstr + ', ' + sstr + '},'))
return check
skip = False
for line in open(f, 'r'):
if skip:
if '@configend' in line:
skip = False
continue
m = cbegin_re.match(line)
if not m:
tfile.write(line)
continue
prefix, config_name = m.groups()
if config_name not in api_data.methods:
print >>sys.stderr, "Missing configuration for " + config_name
tfile.write(line)
continue
skip = ('@configstart' in line)
if not api_data.methods[config_name].config:
tfile.write(prefix + '@configempty{' + config_name +
', see dist/api_data.py}\n')
continue
tfile.write(prefix + '@configstart{' + config_name +
', see dist/api_data.py}\n')
w = textwrap.TextWrapper(width=80-len(prefix.expandtabs()),
break_on_hyphens=False)
lastname = None
for c in sorted(api_data.methods[config_name].config):
name = c.name
if '.' in name:
print >>sys.stderr, "Bad config key " + name
# Deal with duplicates: with complex configurations (like
# WT_SESSION::create), it's simpler to deal with duplicates here than
# manually in api_data.py.
if name == lastname:
continue
lastname = name
if 'undoc' in c.flags:
continue
output = parseconfig(c)
for l in w.wrap(output):
tfile.write(prefix + l + '\n')
tfile.write(prefix + '@configend\n')
tfile.close()
compare_srcfile(tmp_file, f)
#####################################################################
# Create config_def.c with defaults for each config string
#####################################################################
f='../src/config/config_def.c'
tfile = open(tmp_file, 'w')
tfile.write('''/* DO NOT EDIT: automatically built by dist/config.py. */
#include "wt_internal.h"
''')
# Make a TextWrapper that can wrap at commas.
w = textwrap.TextWrapper(width=68, break_on_hyphens=False)
w.wordsep_re = w.wordsep_simple_re = re.compile(r'(,)')
def checkstr(c):
'''Generate the JSON string used by __wt_config_check to validate the
config string'''
checks = c.flags
cmin = str(checks.get('min', ''))
cmax = str(checks.get('max', ''))
choices = checks.get('choices', [])
subconfig = checks.get('subconfig', [])
result = []
if cmin:
result.append('min=' + cmin)
if cmax:
result.append('max=' + cmax)
if subconfig:
result.append('subconfig=' + '[' +
','.join('\\"' + parseconfig(c) + '\\"' for c in subconfig) + ']')
if choices:
result.append('choices=' + '[' +
','.join('\\"' + s + '\\"' for s in choices) + ']')
if result:
return '"' + ','.join(result) + '"'
else:
return 'NULL'
def get_default(c):
t = gettype(c)
if c.default == 'false':
return '0'
elif t == 'category':
return '(%s)' % (','.join('%s=%s' % (subc.name, get_default(subc))
for subc in sorted(c.subconfig)))
elif (c.default or t == 'int') and c.default != 'true':
return str(c.default)
else:
return ''
created_subconfigs=set()
def add_subconfig(c):
if c.name in created_subconfigs:
return
created_subconfigs.add(c.name)
tfile.write('''
WT_CONFIG_CHECK
__wt_confchk_%(name)s_subconfigs[] = {
\t%(check)s
\t{ NULL, NULL, NULL, NULL }
};
''' % {
'name' : c.name,
'check' : '\n\t'.join('"\n\t "'.join(w.wrap('{ "%s", "%s", %s, NULL },' %
(subc.name, gettype(subc), checkstr(subc)))) for subc in sorted(c.subconfig)),
})
def getsubconfigstr(c):
'''Return a string indicating if an item has sub configuration'''
ctype = gettype(c)
if ctype == 'category':
add_subconfig(c)
return '__wt_confchk_' + c.name + '_subconfigs'
else:
return 'NULL'
for name in sorted(api_data.methods.keys()):
ctype = api_data.methods[name].config
name = name.replace('.', '_')
tfile.write('''
const char *
__wt_confdfl_%(name)s =
%(config)s;
''' % {
'name' : name,
'config' : '\n'.join('\t"%s"' % line
for line in w.wrap(','.join('%s=%s' % (c.name, get_default(c))
for c in sorted(ctype))) or [""]),
})
# Construct an array of allowable configuration options. Always append an empty
# string as a terminator for iteration
if not ctype:
tfile.write('''
WT_CONFIG_CHECK
__wt_confchk_%(name)s[] = {
\t{ NULL, NULL, NULL, NULL }
};
''' % { 'name' : name })
else:
tfile.write('''
WT_CONFIG_CHECK
__wt_confchk_%(name)s[] = {
\t%(check)s
\t{ NULL, NULL, NULL, NULL }
};
''' % {
'name' : name,
'check' : '\n\t'.join(getconfcheck(c) for c in sorted(ctype)),
})
tfile.close()
compare_srcfile(tmp_file, f)
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