def render_cheetah(self, raw_data, search_table, subject=None):
"""
Render data_input back into a file.
data_input is either a string or a filename
search_table is a hash of metadata keys and values
(though results are always returned)
subject is a profile or system object, if available (for snippet eval)
"""
self.check_for_invalid_imports(raw_data)
# backward support for Cobbler's legacy (and slightly more readable)
# template syntax.
raw_data = raw_data.replace("TEMPLATE::","$")
# HACK: the ksmeta field may contain nfs://server:/mount in which
# case this is likely WRONG for kickstart, which needs the NFS
# directive instead. Do this to make the templates work.
newdata = ""
if search_table.has_key("tree") and search_table["tree"].startswith("nfs://"):
for line in raw_data.split("\n"):
if line.find("--url") != -1 and line.find("url ") != -1:
rest = search_table["tree"][6:] # strip off "nfs://" part
try:
(server, dir) = rest.split(":",2)
except:
raise CX("Invalid syntax for NFS path given during import: %s" % search_table["tree"])
line = "nfs --server %s --dir %s" % (server,dir)
# but put the URL part back in so koan can still see
# what the original value was
line = line + "\n" + "#url --url=%s" % search_table["tree"]
newdata = newdata + line + "\n"
raw_data = newdata
# tell Cheetah not to blow up if it can't find a symbol for something
raw_data = "#errorCatcher ListErrors\n" + raw_data
table_copy = search_table.copy()
# for various reasons we may want to call a module inside a template and pass
# it all of the template variables. The variable "template_universe" serves
# this purpose to make it easier to iterate through all of the variables without
# using internal Cheetah variables
search_table.update({
"template_universe" : table_copy
})
# now do full templating scan, where we will also templatify the snippet insertions
t = Template(source=raw_data, searchList=[search_table], compilerSettings={'useStackFrame':False})
if fix_cheetah_class and functools is not None:
t.SNIPPET = functools.partial(t.SNIPPET, t)
t.read_snippet = functools.partial(t.read_snippet, t)
try:
data_out = t.respond()
self.last_errors = t.errorCatcher().listErrors()
if self.last_errors:
self.logger.warning("errors were encountered rendering the template")
self.logger.warning("\n" + pprint.pformat(self.last_errors))
except Exception, e:
self.logger.error(utils.cheetah_exc(e))
raise CX("Error templating file, check cobbler.log for more details")
def render(self, data_input, search_table, out_path, subject=None):
"""
Render data_input back into a file.
data_input is either a string or a filename
search_table is a hash of metadata keys and values
out_path if not-none writes the results to a file
(though results are always returned)
subject is a profile or system object, if available (for snippet eval)
"""
if type(data_input) != str:
raw_data = data_input.read()
else:
raw_data = data_input
self.check_for_invalid_imports(raw_data)
# backward support for Cobbler's legacy (and slightly more readable)
# template syntax.
raw_data = raw_data.replace("TEMPLATE::","$")
# HACK: the ksmeta field may contain nfs://server:/mount in which
# case this is likely WRONG for kickstart, which needs the NFS
# directive instead. Do this to make the templates work.
newdata = ""
if search_table.has_key("tree") and search_table["tree"].startswith("nfs://"):
for line in raw_data.split("\n"):
if line.find("--url") != -1 and line.find("url ") != -1:
rest = search_table["tree"][6:] # strip off "nfs://" part
try:
(server, dir) = rest.split(":",2)
except:
raise CX(_("Invalid syntax for NFS path given during import: %s" % search_table["tree"]))
line = "nfs --server %s --dir %s" % (server,dir)
# but put the URL part back in so koan can still see
# what the original value was
line = line + "\n" + "#url --url=%s" % search_table["tree"]
newdata = newdata + line + "\n"
raw_data = newdata
# tell Cheetah not to blow up if it can't find a symbol for something
raw_data = "#errorCatcher Echo\n" + raw_data
table_copy = search_table.copy()
# for various reasons we may want to call a module inside a template and pass
# it all of the template variables. The variable "template_universe" serves
# this purpose to make it easier to iterate through all of the variables without
# using internal Cheetah variables
search_table.update({
"template_universe" : table_copy
})
# now do full templating scan, where we will also templatify the snippet insertions
t = Template(source=raw_data, errorCatcher="Echo", searchList=[search_table])
try:
data_out = str(t)
except Exception, e:
if out_path is None:
return utils.cheetah_exc(e)
else:
# FIXME: log this
print utils.cheetah_exc(e)
raise CX("Error templating file: %s" % out_path)