def handleOption(e):
errors.pushCtx("when processing option '%s' at %s" %
(e.name, e.location()))
name = evalConstExpr(e, e.props['name'])
if name in mk.options:
raise ReaderError(e, "option '%s' already defined" % name)
if name in mk.override_vars:
return # user hardcoded the value with -D=xxx
default = None
force_default = False
desc = None
values = None
values_desc = None
category = mk.Option.CATEGORY_UNSPECIFICED
for c in e.children:
if c.name == 'default-value':
default = c.value
force_default = 'force' in c.props and c.props['force'] == '1'
elif c.name == 'description':
desc = c.value
elif c.name == 'values':
values = evalConstExpr(e, c.value.replace('\n', '')).split(',')
for i in range(len(values)):
values[i] = values[i].strip()
elif c.name == 'values-description':
values_desc = evalConstExpr(e, c.value).split(',')
o = mk.Option(name, default, force_default, desc, values, values_desc,
errors.getCtx())
mk.addOption(o)
if 'never_empty' in e.props and e.props['never_empty'] == '1':
o.neverEmpty = 1
if 'category' in e.props:
category = evalConstExpr(e, e.props['category'])
if category == mk.Option.CATEGORY_PATH:
o.category = category
o.neverEmpty = 1
def __pathOptionCallb(var, func, caller):
if caller == 'nativePaths':
return '$(%s)' % var
else:
return None
utils.addSubstituteCallback(o.name, __pathOptionCallb)
else:
raise ReaderError(e, "unknown category '%s'" % category)
errors.popCtx()
def handleModifyTarget(e, dict=None):
tg = mk.evalExpr(e.props['target'], use_options=0, add_dict=dict)
if tg not in mk.targets:
raise ReaderError(e, "unknown target '%s'" % tg)
target = mk.targets[tg]
tags = rules[target.type].getTagsDict()
_processTargetNodes(e, target, tags, dict)
def handleTagInfo(e):
name = e.props['name']
if name in tagInfos:
info = tagInfos[name]
else:
info = TagInfo()
if 'exclusive' in e.props:
info.exclusive = e.props['exclusive'] == '1'
if 'position' in e.props:
tokens = e.props['position'].split(',')
for token in tokens:
pos = token.find(':')
if pos == -1:
keyword = token
else:
keyword = token[:pos]
param = token[pos + 1:]
if keyword == 'before':
if param not in info.before:
info.before.append(param)
elif keyword == 'after':
if param not in tagInfos:
tagInfos[param] = TagInfo()
if name not in tagInfos[param].before:
tagInfos[param].before.append(name)
else:
raise ReaderError(e,
"unrecognized position token '%s'" % token)
tagInfos[name] = info
def checkConditionsSupport(e):
"""Raises exception of the output format does not support some form
of conditions (e.g. DigitalMars)."""
if mk.vars['FORMAT_SUPPORTS_CONDITIONS'] != '1' and \
mk.vars['FORMAT_SUPPORTS_CONFIGURATIONS'] != '1':
raise ReaderError(
e, 'output format does not support conditional processing')
def __doProcess(file=None, strdata=None, xmldata=None):
if xmldata != None:
m = xmldata
else:
# FIXME: validity checking
try:
if file != None:
m = xmlparser.parseFile(file)
else:
m = xmlparser.parseString(strdata)
except xmlparser.ParsingError:
raise ReaderError(None, "file '%s' is invalid" % file)
def processNodes(list):
for e in list:
if e.name == 'if':
if evalWeakCondition(e):
processNodes(e.children)
else:
try:
h = HANDLERS[e.name]
except (KeyError):
raise ReaderError(e, "unknown tag '%s'" % e.name)
h(e)
try:
processNodes(m.children)
except ReaderError:
reraise()
def handleDefineGlobalTag(e):
name = e.props['name']
if name in HANDLERS:
raise ReaderError(e, "global tag '%s' is already defined" % name)
globalTags[name] = e
HANDLERS[name] = handleGlobalTag
def checkTagDefinitions():
if len(__tagsWaitingForRules) > 0:
errors = []
for r in __tagsWaitingForRules:
errors.append(" target '%s':" % r)
for t in __tagsWaitingForRules[r]:
errors.append(' at %s' % t.location())
errors = '\n'.join(errors)
raise ReaderError(
None, "tag definitions for nonexistent rules:\n%s" % errors)
def evalConstExpr(e, str, target=None, add_dict=None):
try:
return mk.evalExpr(str,
use_options=0,
target=target,
add_dict=add_dict)
except NameError, err:
raise ReaderError(
e,
"can't use options or conditional variables in this context (%s)" %
err)
def processNodes(list):
for e in list:
if e.name == 'if':
if evalWeakCondition(e):
processNodes(e.children)
else:
try:
h = HANDLERS[e.name]
except (KeyError):
raise ReaderError(e, "unknown tag '%s'" % e.name)
h(e)
def evalWeakCondition(e, target=None, add_dict=None):
"""Evaluates e's 'cond' property, if present, and returns 0 or 1 if it
can be evaluated to a constant. If it can't (i.e. it is a strong
condition) do it, raises exception."""
x = evalWeakConditionDontRaise(e, target=target, add_dict=add_dict)
if x == None:
raise ReaderError(e,
"'%s': only weak condition allowed in this context" % \
e.props['cond'])
else:
return x
def handleDefineRule(e):
rule = Rule(evalConstExpr(e, e.props['name']))
# check that the rule name is valid
if rule.name in HANDLERS:
raise ReaderError(
e, "global tag or rule '%s' already defined" % rule.name)
rules[rule.name] = rule
HANDLERS[rule.name] = handleTarget
if 'pseudo' in e.props and e.props['pseudo'] == '1':
rule.pseudo = 1
if 'extends' in e.props:
baserules = [
evalConstExpr(e, x) for x in e.props['extends'].split(',')
]
rule.baserules = []
for baserule in baserules:
if baserule == '': continue
if baserule not in rules:
raise ReaderError(e, "unknown rule '%s'" % baserule)
rule.baserules.append(rules[baserule])
if rule.name in __tagsWaitingForRules:
for t in __tagsWaitingForRules[rule.name]:
__addTagToRule(rule, t)
del __tagsWaitingForRules[rule.name]
for node in e.children:
if node.name == 'define-tag':
handleDefineTag(node, rule=rule)
elif node.name == 'template':
rule.template += applyTemplates(node, extractTemplates(node,
post=0),
extractTemplates(node,
post=1)).children
else:
raise ReaderError(
node, "unknown element '%s' in <define-rule>" % node.name)
def handleRequires(e):
if 'version' in e.props:
if not utils.checkBakefileVersion(e.props['version']):
sys.stderr.write("""
-----------------------------------------------------------------------
This file cannot be processed with Bakefile version older than %s.
You are using Bakefile version %s. Please install the newest version
from http://www.bakefile.org.
-----------------------------------------------------------------------
""" % (e.props['version'], mk.vars['BAKEFILE_VERSION']))
raise ReaderError(e, "Bakefile not new enough")
def _extractTargetNodes(parent, list, target, tags, index):
def _removeNode(n):
for c in n.children:
_removeNode(c)
index[n.node.name].remove(n)
n.parent.children.remove(n)
for c in n.parent.children:
c.updatePosition()
def _removeDuplicates(n):
# Eliminate duplicates of exclusive tags:
name = n.node.name
if name not in index:
index[name] = [n]
else:
if n.exclusive:
if len(index[name]) > 0:
if config.debug:
n2 = index[name][0]
print '[dbg] (thrown away <%s> @%s in favor of @%s)' % \
(name, n2.node.location(), n.node.location())
_removeNode(index[name][0])
# else: this can happen if _removeNode was called recursively
index[name] = [n]
else:
index[name].append(n)
for node in list:
if node.name == 'if':
condType = evalWeakConditionDontRaise(node, target=target)
if condType == 1:
_extractTargetNodes(parent, node.children, target, tags, index)
elif condType == None:
n = TgtCmdNode(target, parent, TgtCmdNode.IF, node)
_removeDuplicates(n)
_extractTargetNodes(n, node.children, target, tags, index)
# else: condition evaluated to False, ignore this part
elif node.name in COMMANDS:
n = TgtCmdNode(target, parent, TgtCmdNode.COMMAND, node)
_removeDuplicates(n)
elif node.name in tags:
if evalWeakCondition(node) == 0:
continue
n = TgtCmdNode(target, parent, TgtCmdNode.TAG, node)
_removeDuplicates(n)
_extractTargetNodes(n, tags[node.name], target, tags, index)
elif node.name in globalTags:
n = TgtCmdNode(target, parent, TgtCmdNode.COMMAND, node)
_removeDuplicates(n)
else:
raise ReaderError(node, "unknown target tag '%s'" % node.name)
def handleInclude(e):
file = evalConstExpr(e, e.props['file'])
canIgnore = 'ignore_missing' in e.props and e.props['ignore_missing'] == '1'
justOnce = 'once' in e.props and e.props['once'] == '1'
lookup = [os.path.dirname(e.filename)] + config.searchPath
errors.pushCtx("included from %s" % e.location())
for dir in lookup:
if processFileIfExists(os.path.join(dir, file), justOnce):
errors.popCtx()
return
if not canIgnore:
raise ReaderError(
e, "can't find file '%s' in %s" % (file, string.join(lookup, ':')))
errors.popCtx()
def translateSpecialCondition(e, condstr, target=None):
"""If the condition is of form 'target' or 'target and something',
make it a normal condition by extracting condition from
target's description."""
if condstr.startswith('target and '):
if target == None:
raise ReaderError(
e, "'target' condition can't be used at global scope")
if target.cond != None:
condstr = '%s and %s' % (target.cond.tostr(),
condstr[len('target and '):])
else:
condstr = condstr[len('target and '):]
return condstr
elif condstr == 'target':
if target == None:
raise ReaderError(
e, "'target' condition can't be used at global scope")
if target.cond == None:
return '1'
else:
return target.cond.tostr()
else:
return condstr
def extractTemplates(e, post):
ch = []
if post: propname = 'template_append'
else: propname = 'template'
if propname in e.props:
derives = e.props[propname].split(',')
for d2 in derives:
d = evalConstExpr(e, d2)
if d == '': continue
try:
ch2 = mk.templates[d]
ch = ch + ch2
except KeyError:
raise ReaderError(e, "unknown template '%s'" % d)
return ch
def processFile(filename, onlyOnce=False):
if not os.path.isfile(filename):
raise ReaderError(None, "file '%s' doesn't exist" % filename)
filename = os.path.abspath(filename)
if onlyOnce and filename in includedFiles:
if config.verbose:
print "file %s already included, skipping..." % filename
return
includedFiles.append(filename)
if config.verbose:
print 'loading %s...' % filename
if config.track_deps:
dependencies.addDependency(mk.vars['INPUT_FILE'], config.format,
filename)
newdir = os.path.dirname(filename)
if newdir not in sys.path:
sys.path.append(newdir)
__doProcess(file=filename)
def handleDefineTag(e, rule=None):
name = e.props['name']
if rule == None:
if 'rules' in e.props:
rs = e.props['rules'].split(',')
else:
raise ReaderError(e, "external <define-tag> must list rules")
else:
rs = [rule.name]
for rn in rs:
if not rn in rules:
# delayed tags addition, rule not defined yet
if rn in __tagsWaitingForRules:
__tagsWaitingForRules[rn].append(e)
else:
__tagsWaitingForRules[rn] = [e]
else:
__addTagToRule(rules[rn], e)
def _loadFile(filename):
if verbose:
print 'loading task description from %s...' % filename
try:
root = xmlparser.parseFile(filename, xmlparser.NS_BAKEFILE_GEN)
except xmlparser.ParsingError:
raise errors.Error("can't load file '%s'" % filename)
ret = []
for cmd in root.children:
if cmd.name == 'include':
inc = os.path.join(os.path.dirname(filename),
cmd.props['file'])
if os.path.isfile(inc):
r2 = _loadFile(inc)
ret += r2.children
else:
if ('ignore_missing' not in cmd.props) or \
(cmd.props['ignore_missing'] == '0'):
raise ReaderError(cmd, "file '%s' doesn't exist" % inc)
else:
ret.append(cmd)
root.children = ret
return root
def handleEcho(e, target=None, add_dict=None):
text = evalConstExpr(e, e.value, target=target, add_dict=add_dict)
# extract echo level
if 'level' in e.props:
level = e.props['level']
if level not in ['verbose', 'warning', 'normal', 'debug']:
raise ReaderError(e, "unknown echo level '%s'" % level)
else:
level = 'normal'
if level == 'normal':
print text
elif level == 'verbose' and config.verbose:
print text
elif level == 'debug' and config.debug:
print text
elif level == 'warning':
# FIXME: DEPRECATED (since 0.2.3)
_printWarning(None, text)
_printWarning(
e,
'<echo level="warning"> syntax is deprecated, use <warning> instead'
)
def loadModule(m):
if m in loadedModules:
return
if config.verbose: print "loading module '%s'..." % m
loadedModules.append(m)
# set USING_<MODULENAME> variable:
mk.setVar('USING_%s' % m.upper(), '1')
# import module's py utilities:
imported = mk.importPyModule(m)
# include module-specific makefiles:
global availableFiles
for f in availableFiles:
if m in f.modules:
f.modules.remove(m)
if len(f.modules) == 0:
processFile(f.file)
imported = True
availableFiles = [f for f in availableFiles if len(f.modules) > 0]
if not imported:
raise ReaderError(None, "unknown module '%s'" % m)
def loadTargets(filename, defaultFlags=[]):
def _loadFile(filename):
if verbose:
print 'loading task description from %s...' % filename
try:
root = xmlparser.parseFile(filename, xmlparser.NS_BAKEFILE_GEN)
except xmlparser.ParsingError:
raise errors.Error("can't load file '%s'" % filename)
ret = []
for cmd in root.children:
if cmd.name == 'include':
inc = os.path.join(os.path.dirname(filename),
cmd.props['file'])
if os.path.isfile(inc):
r2 = _loadFile(inc)
ret += r2.children
else:
if ('ignore_missing' not in cmd.props) or \
(cmd.props['ignore_missing'] == '0'):
raise ReaderError(cmd, "file '%s' doesn't exist" % inc)
else:
ret.append(cmd)
root.children = ret
return root
def _findMatchingFiles(node):
"""Returns list of FileInfo objects from 'files' variable that match
node's file matching properties ("files"=comma-sep list of wildcards,
"formats"=comma-separated list of formats)."""
global files
# match filenames:
if 'files' in node.props:
matches1 = []
globs = node.props['files'].replace('/', os.sep).split(',')
for g in globs:
for f in [x for x in files if _matchesWildcard(x, g)]:
matches1.append(files[f])
else:
matches1 = files.values()
# match formats:
if 'formats' in node.props:
formats = node.props['formats'].split(',')
matches2 = []
for f in matches1:
formats2 = [x for x in formats if x in f.formats]
matches2.append((f, formats2))
else:
matches2 = []
for f in matches1:
matches2.append((f, f.formats))
return matches2
def _parseFlags(cmdline):
"""Splits command line into individual flag arguments. Handles quoting
with " properly."""
# findall returns list of tuples, 1st or 2nd item is empty, depending
# on which subexpression was matched:
return [a or b for a, b in re.findall(r'"(.*?)"|(\S+)', cmdline)]
root = _loadFile(filename)
if root.name != 'bakefile-gen':
raise ReaderError(root,
'incorrect root node (not a bakefile_gen file?)')
if verbose:
print 'scanning directories for bakefiles...'
for cmd in [x for x in root.children if x.name == 'input']:
globs = cmd.value.replace('/', os.sep).split()
for g in globs:
for f in glob.glob(g):
files[f] = FileInfo(f)
if verbose:
print 'building rules...'
for cmd in root.children:
if cmd.name == 'disable-formats':
formats = cmd.value.split(',')
for f in formats:
if f not in disabled_formats:
disabled_formats.append(f)
elif cmd.name == 'enable-formats':
formats = cmd.value.split(',')
for f in formats:
if f in disabled_formats:
disabled_formats.remove(f)
for cmd in root.children:
if cmd.name == 'add-formats':
formats = [
x for x in cmd.value.split(',') if x not in disabled_formats
]
for file, fl in _findMatchingFiles(cmd):
for f in formats:
if f not in file.formats:
file.formats.append(f)
file.flags[f] = [x for x in defaultFlags] # make copy
elif cmd.name == 'del-formats':
formats = [
x for x in cmd.value.split(',') if x not in disabled_formats
]
for file, fl in _findMatchingFiles(cmd):
for f in formats:
if f in file.formats:
file.formats.remove(f)
del file.flags[f]
for cmd in root.children:
if cmd.name == 'add-flags':
flagsList = _parseFlags(cmd.value)
for file, formats in _findMatchingFiles(cmd):
for f in flagsList:
flags = f
flags = flags.replace('$(INPUT_FILE)', file.filename)
flags = flags.replace('$(INPUT_FILE_BASENAME)',
os.path.basename(file.filename))
flags = flags.replace(
'$(INPUT_FILE_BASENAME_NOEXT)',
os.path.splitext(os.path.basename(file.filename))[0])
inputdir = os.path.dirname(file.filename)
if inputdir == '': inputdir = '.'
flags = flags.replace('$(INPUT_FILE_DIR)', inputdir)
for fmt in formats:
file.flags[fmt].append(flags)
elif cmd.name == 'del-flags':
flagsList = _parseFlags(cmd.value)
for file, formats in _findMatchingFiles(cmd):
for fmt in formats:
for f in flagsList:
try:
file.flags[fmt].remove(f)
except ValueError:
sys.stderr.write(
"Warning: trying to remove flags '%s' that weren't added at %s (current flags on file %s, format %s: '%s')\n"
% (f, cmd.location(), file.filename, fmt,
' '.join(file.flags[fmt])))
def handleError(e, target=None, add_dict=None):
text = evalConstExpr(e, e.value, target=target, add_dict=add_dict)
raise ReaderError(e, text)
def handleSet(e, target=None, add_dict=None):
try:
errors.pushCtx("in <set> at %s" % e.location())
name = basename = evalConstExpr(e, e.props['var'], target)
if (name in mk.override_vars) and target == None:
return # can't change value of variable overriden with -D=xxx
doEval = not ('eval' in e.props and e.props['eval'] == '0')
overwrite = not ('overwrite' in e.props
and e.props['overwrite'] == '0')
isCond = (len(e.children) > 0)
isMakeVar = 'make_var' in e.props and e.props['make_var'] == '1'
value = e.value
if 'hints' in e.props:
hints = e.props['hints']
else:
hints = ''
# Handle conditions:
if isCond:
if e.value:
raise ReaderError(
e, "cannot set unconditional value when <if> is used")
noValueSet = 1
for e_if in e.children:
try:
errors.pushCtx(e_if)
if e_if.name != 'if':
raise ReaderError(e_if, "malformed <set> command")
# Preprocess always true or always false conditions:
condstr = evalConstExpr(e_if,
e_if.props['cond'],
target=target,
add_dict=add_dict)
condstr = translateSpecialCondition(e_if, condstr, target)
typ = mk.evalCondition(condstr)
# Condition never met when generating this target:
if typ == '0':
if config.debug:
print "[dbg] removing never-met condition '%s' for variable '%s'" % (
condstr, name)
continue
# Condition always met:
elif typ == '1':
if config.debug:
print "[dbg] condition '%s' for variable '%s' is always met" % (
condstr, name)
noValueSet = 0
isCond = 0
value = e_if.value
break
elif typ != None:
raise ReaderError(
e,
"malformed condition '%s': doesn't evaluate to boolean value"
% condstr)
cond = mk.makeCondition(condstr)
noValueSet = 0
# Real conditions:
checkConditionsSupport(e)
if 'scope' in e.props:
raise ReaderError(
e,
"conditional variable can't have nondefault scope ('%s')"
% e.props['scope'])
if target != None:
if (not overwrite) and (name in target.vars):
return
name = '__%s_%s' % (target.id.replace(
'-', '_').replace('.', '_').replace('/',
'_'), basename)
mk.setVar(e.props['var'],
'$(%s)' % name,
eval=0,
target=target,
add_dict=add_dict,
hints=hints)
if cond == None:
raise ReaderError(
e,
"malformed condition: '%s': must be constant expression, equality test or conjunction of them"
% condstr)
if name in mk.cond_vars:
if not overwrite:
return
var = mk.cond_vars[name]
else:
var = mk.CondVar(name, target)
mk.addCondVar(var, hints)
if doEval:
value = mk.evalExpr(e_if.value,
target=target,
add_dict=add_dict)
else:
value = e_if.value
var.add(cond, value)
finally:
errors.popCtx()
if noValueSet:
isCond = 0
value = ''
if isCond:
return
# Non-conditional variables:
if value == None: value = ''
if 'append' in e.props and e.props['append'] == '1':
doAppend = 1
else:
doAppend = 0
if 'prepend' in e.props and e.props['prepend'] == '1':
doPrepend = 1
else:
doPrepend = 0
store_in = None
if 'scope' in e.props:
sc = evalConstExpr(e, e.props['scope'], target=target)
if sc == 'local':
pass
elif sc == 'global':
store_in = mk.vars
else:
if sc in mk.targets:
store_in = mk.targets[sc].vars
else:
raise ReaderError(
e,
"invalid scope '%s': must be 'global', 'local' or target name"
% sc)
if isMakeVar:
if doAppend or store_in != None or not doEval:
raise ReaderError(
e,
"make variable (%s) can't be appended or stored in nondefault scope or not evaluated"
% name)
mk.setVar(name,
value,
eval=doEval,
target=target,
add_dict=add_dict,
store_in=store_in,
append=doAppend,
prepend=doPrepend,
overwrite=overwrite,
makevar=isMakeVar,
hints=hints)
finally:
errors.popCtx()
def handleUnset(e):
name = e.props['var']
if not mk.unsetVar(name):
raise ReaderError(e, "'%s' is not a variable" % name)
def handleTemplate(e):
id = e.props['id']
if id in mk.templates:
raise ReaderError(e, "template ID '%s' already used" % id)
mk.templates[id] = applyTemplates(e, extractTemplates(e, post=0),
extractTemplates(e, post=1)).children
def handleTarget(e):
if e.name not in rules:
raise ReaderError(e, "unknown target type")
rule = rules[e.name]
if rule.pseudo and 'id' not in e.props:
global _pseudoTargetLastID
id = 'pseudotgt%i' % _pseudoTargetLastID
_pseudoTargetLastID += 1
else:
if 'id' not in e.props:
raise ReaderError(e, "target doesn't have id")
id = e.props['id']
cond = None
if 'cond' in e.props:
isCond = 1
# Handle conditional targets:
condstr = evalConstExpr(e, e.props['cond'])
typ = mk.evalCondition(condstr)
# Condition never met, ignore the target:
if typ == '0':
utils.deadTargets.append(id)
return
# Condition always met:
elif typ == '1':
isCond = 0
elif typ != None:
raise ReaderError(e, "malformed condition: '%s'" % condstr)
if isCond:
checkConditionsSupport(e)
cond = mk.makeCondition(condstr)
if cond == None:
raise ReaderError(e, "malformed condition: '%s'" % condstr)
tags = rule.getTagsDict()
e = applyTemplates(e,
rule.getTemplates() + extractTemplates(e, post=0),
extractTemplates(e, post=1))
if id in mk.targets:
raise ReaderError(e, "duplicate target name '%s'" % id)
if 'category' in e.props:
try:
cats = {
'all': mk.Target.CATEG_ALL,
'normal': mk.Target.CATEG_NORMAL,
'automatic': mk.Target.CATEG_AUTOMATIC
}
category = cats[e.props['category']]
except KeyError:
raise ReaderError(e, "unknown category '%s'" % e.props['category'])
else:
category = mk.Target.CATEG_NORMAL
target = mk.Target(e.name, id, cond, rule.pseudo, category)
mk.addTarget(target)
errors.pushCtx("when processing target '%s' at %s" %
(target.id, e.location()))
_processTargetNodes(e, target, tags, None)
errors.popCtx()
