def basenames(words):
for w in words:
dir, file = pathsplit(w, '')
base, dot, suffix = util.strrpartition(file, '.')
if dot == '':
base = suffix
yield dir + base
def pathsplit(path, default='./'):
"""
Splits a path into dirpart, filepart on the last slash. If there is no slash, dirpart
is ./
"""
dir, slash, file = util.strrpartition(path, '/')
if dir == '':
return default, file
return dir + slash, file
def suffixes(words):
for w in words:
dir, file = pathsplit(w)
base, dot, suffix = util.strrpartition(file, '.')
if base != '':
yield dot + suffix
def resolveimplicitrule(self, makefile, targetstack, rulestack):
"""
Try to resolve an implicit rule to build this target.
"""
# The steps in the GNU make manual Implicit-Rule-Search.html are very detailed. I hope they can be trusted.
indent = getindent(targetstack)
_log.info("%sSearching for implicit rule to make '%s'", indent, self.target)
dir, s, file = util.strrpartition(self.target, '/')
dir = dir + s
candidates = [] # list of PatternRuleInstance
hasmatch = util.any((r.hasspecificmatch(file) for r in makefile.implicitrules))
for r in makefile.implicitrules:
if r in rulestack:
_log.info("%s %s: Avoiding implicit rule recursion", indent, r.loc)
continue
if not len(r.commands):
continue
for ri in r.matchesfor(dir, file, hasmatch):
candidates.append(ri)
newcandidates = []
for r in candidates:
depfailed = None
for p in r.prerequisites:
t = makefile.gettarget(p)
t.resolvevpath(makefile)
if not t.explicit and t.mtime is None:
depfailed = p
break
if depfailed is not None:
if r.doublecolon:
_log.info("%s Terminal rule at %s doesn't match: prerequisite '%s' not mentioned and doesn't exist.", indent, r.loc, depfailed)
else:
newcandidates.append(r)
continue
_log.info("%sFound implicit rule at %s for target '%s'", indent, r.loc, self.target)
self.rules.append(r)
return
# Try again, but this time with chaining and without terminal (double-colon) rules
for r in newcandidates:
newrulestack = rulestack + [r.prule]
depfailed = None
for p in r.prerequisites:
t = makefile.gettarget(p)
try:
t.resolvedeps(makefile, targetstack, newrulestack, True)
except ResolutionError:
depfailed = p
break
if depfailed is not None:
_log.info("%s Rule at %s doesn't match: prerequisite '%s' could not be made.", indent, r.loc, depfailed)
continue
_log.info("%sFound implicit rule at %s for target '%s'", indent, r.loc, self.target)
self.rules.append(r)
return
_log.info("%sCouldn't find implicit rule to remake '%s'", indent, self.target)
def filepart(p):
d, s, f = util.strrpartition(p, '/')
return f
def dirpart(p):
d, s, f = util.strrpartition(p, '/')
if d == '':
return '.'
return d
