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authorTaniadz <tdziubenko@ukr.net>2017-10-11 20:13:03 +0300
committerTaniadz <tdziubenko@ukr.net>2017-10-11 20:14:55 +0300
commitc9167aadf137e74165dcb36a65f6eedd09e67da4 (patch)
treefad4288f89abeacf2da747ec6dd056147953f419 /scripts/build-command-op-templates
parent6b2028e5a40cc435875c2b516b81a2a84ecc6ee0 (diff)
downloadvyos-1x-c9167aadf137e74165dcb36a65f6eedd09e67da4.tar.gz
vyos-1x-c9167aadf137e74165dcb36a65f6eedd09e67da4.zip
T413: Make a schema for op mode;
T420: Write op mode version of node.def generator
Diffstat (limited to 'scripts/build-command-op-templates')
-rwxr-xr-xscripts/build-command-op-templates208
1 files changed, 208 insertions, 0 deletions
diff --git a/scripts/build-command-op-templates b/scripts/build-command-op-templates
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+#!/usr/bin/env python3
+#
+# build-command-template: converts new style command definitions in XML
+# to the old style (bunch of dirs and node.def's) command templates
+#
+# Copyright (C) 2017 VyOS maintainers <maintainers@vyos.net>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
+# USA
+
+import sys
+import os
+import argparse
+import copy
+import functools
+
+from lxml import etree as ET
+
+# Defaults
+
+validator_dir = "/opt/vyatta/libexec/validators"
+default_constraint_err_msg = "Invalid value"
+
+
+## Get arguments
+
+parser = argparse.ArgumentParser(description='Converts new-style XML interface definitions to old-style command templates')
+parser.add_argument('--debug', help='Enable debug information output', action='store_true')
+parser.add_argument('INPUT_FILE', type=str, help="XML interface definition file")
+parser.add_argument('SCHEMA_FILE', type=str, help="RelaxNG schema file")
+parser.add_argument('OUTPUT_DIR', type=str, help="Output directory")
+
+args = parser.parse_args()
+
+input_file = args.INPUT_FILE
+schema_file = args.SCHEMA_FILE
+output_dir = args.OUTPUT_DIR
+debug = args.debug
+
+## Load and validate the inputs
+
+try:
+ xml = ET.parse(input_file)
+except Exception as e:
+ print("Failed to load interface definition file {0}".format(input_file))
+ print(e)
+ sys.exit(1)
+
+try:
+ relaxng_xml = ET.parse(schema_file)
+ validator = ET.RelaxNG(relaxng_xml)
+
+ if not validator.validate(xml):
+ print(validator.error_log)
+ print("Interface definition file {0} does not match the schema!".format(input_file))
+ sys.exit(1)
+except Exception as e:
+ print("Failed to load the XML schema {0}".format(schema_file))
+ print(e)
+ sys.exit(1)
+
+if not os.access(output_dir, os.W_OK):
+ print("The output directory {0} is not writeable".format(output_dir))
+ sys.exit(1)
+
+## If we got this far, everything must be ok and we can convert the file
+
+def make_path(l):
+ path = functools.reduce(os.path.join, l)
+ if debug:
+ print(path)
+ return path
+
+def get_properties(p):
+ props = {}
+
+ if p is None:
+ return props
+
+ # Get the help string
+ try:
+ props["help"] = p.find("help").text
+ except:
+ pass
+
+
+ # Get the completion help strings
+ try:
+ che = p.findall("completionHelp")
+ ch = ""
+ for c in che:
+ scripts = c.findall("script")
+ paths = c.findall("path")
+ lists = c.findall("list")
+
+ # Current backend doesn't support multiple allowed: tags
+ # so we get to emulate it
+ comp_exprs = []
+ for i in lists:
+ comp_exprs.append("echo \"{0}\"".format(i.text))
+ for i in paths:
+ comp_exprs.append("/bin/cli-shell-api listNodes {0}".format(i.text))
+ for i in scripts:
+ comp_exprs.append("sh -c \"{0}\"".format(i.text))
+ comp_help = " && ".join(comp_exprs)
+ props["comp_help"] = comp_help
+ except:
+ props["comp_help"] = []
+
+ return props
+
+
+def make_node_def(props, command):
+ # XXX: replace with a template processor if it grows
+ # out of control
+
+ node_def = ""
+
+ if "tag" in props:
+ node_def += "tag:\n"
+
+
+ if "type" in props:
+ node_def += "type: {0}\n".format(props["type"])
+
+
+ if "help" in props:
+ node_def += "help: {0}\n".format(props["help"])
+
+
+ if "comp_help" in props:
+ node_def += "allowed: {0}\n".format(props["comp_help"])
+
+
+ if command is not None:
+ node_def += "run: sudo sh -c {0}\n".format(command.text)
+
+
+ if debug:
+ print("The contents of the node.def file:\n", node_def)
+
+ return node_def
+
+def process_node(n, tmpl_dir):
+ # Avoid mangling the path from the outer call
+ my_tmpl_dir = copy.copy(tmpl_dir)
+
+ props_elem = n.find("properties")
+ children = n.find("children")
+ command = n.find("command")
+
+ name = n.get("name")
+
+ node_type = n.tag
+
+ my_tmpl_dir.append(name)
+
+ if debug:
+ print("Name of the node: {};\n Created directory: ".format(name), end="")
+ os.makedirs(make_path(my_tmpl_dir), exist_ok=True)
+
+ props = get_properties(props_elem)
+
+ # Type should not be set for non-tag, non-leaf nodes
+ if node_type != "node":
+ props["type"] = "txt"
+ if node_type == "tagNode":
+ props["tag"] = "True"
+
+
+ with open(os.path.join(make_path(my_tmpl_dir), "node.def"), "w") as f:
+ f.write(make_node_def(props, command))
+
+
+ if node_type == "node":
+ inner_nodes = children.iterfind("*")
+ for inner_n in inner_nodes:
+ process_node(inner_n, my_tmpl_dir)
+ if node_type == "tagNode":
+ my_tmpl_dir.append("node.tag")
+ if debug:
+ print("Created path for the tagNode:", end="")
+ os.makedirs(make_path(my_tmpl_dir), exist_ok=True)
+ inner_nodes = children.iterfind("*")
+ for inner_n in inner_nodes:
+ process_node(inner_n, my_tmpl_dir)
+ else:
+ # This is a leaf node
+ pass
+
+
+root = xml.getroot()
+
+nodes = root.iterfind("*")
+for n in nodes:
+ process_node(n, [output_dir])