Files
root/build-tools/stx/patch/metadata.py
Leonardo Fagundes Luz Serrano e543ce0732 patch-builder: source controlled patch scripts
With this change, when a patch script path is provided by the user
in the patch XML, if it is not an absolute path and if the script
is not found in the current directory, then the search will
proceed into MY_REPO_ROOT_DIR.

The advantage of this is that the patch XML can now point
to source controlled scripts (saved in the STX repos) more easily,
without having to know the 'user' or 'project' used to create
the builder container where the patch-builder script is running.

Test Plan:
pass - Include script from source controlled repo

Story: 2011498
Task: 52895

Change-Id: I49efe3fa0bd2ac50e02e27942a715ad1c5c38cb6
Signed-off-by: Leonardo Fagundes Luz Serrano <Leonardo.FagundesLuzSerrano@windriver.com>
2025-10-08 20:27:06 +00:00

273 lines
9.9 KiB
Python

#
# Copyright (c) 2023 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
'''
Class that holds the patch metadata information
'''
import json
import logging
import os
import sys
sys.path.append('..')
import utils
import xml.etree.ElementTree as ET
from lxml import etree
from xml.dom import minidom
from constants import PATCH_SCRIPTS
logger = logging.getLogger('metadata_parser')
utils.set_logger(logger)
PATCH_BUILDER_PATH = os.environ.get('PATCH_BUILDER_PATH')
INPUT_XML_SCHEMA = f'{PATCH_BUILDER_PATH}/config/patch-recipe-schema.xsd'
# Metadata components
PATCH_ROOT_TAG = 'patch'
PATCH_ID = 'id'
SW_VERSION = 'sw_version'
COMPONENT = 'component'
STATUS = 'status'
SUMMARY = 'summary'
DESCRIPTION = 'description'
INSTALL_INSTRUCTIONS = 'install_instructions'
WARNINGS = 'warnings'
REBOOT_REQUIRED = 'reboot_required'
UNREMOVABLE = 'unremovable'
REQUIRES = 'requires'
REQUIRES_PATCH_ID = 'req_patch_id'
PACKAGES = 'packages'
STX_PACKAGES = 'stx_packages'
BINARY_PACKAGES = 'binary_packages'
SEMANTICS = 'semantics'
ACTIVATION_SCRIPTS = 'activation_scripts'
class PatchMetadata(object):
def __init__(self, patch_recipe_file):
self.patch_recipe_file = patch_recipe_file
self.stx_packages = []
self.binary_packages = []
self.requires = []
self.activation_scripts = []
# Verify if the path to the patch builder folder is set
if not PATCH_BUILDER_PATH:
raise Exception("Environment variable PATCH_BUILDER_PATH is not set.")
def __str__(self):
return json.dumps(self.__dict__)
def __repr__(self):
return self.__str__()
def __add_text_tag_to_xml(self, parent, name, text):
"""
Utility function for adding a text tag to an XML object
:param parent: Parent element
:param name: Element name
:param text: Text value
:return:The created element
"""
tag = ET.SubElement(parent, name)
tag.text = text
return tag
def __xml_to_dict(self, element):
"""
Converts xml into a dict
:param xml element
"""
if len(element) == 0:
return element.text.strip() if element.text else ""
result = {}
for child in element:
child_data = self.__xml_to_dict(child)
# Verify if child.tag is comment
if child.tag == etree.Comment:
continue
if child.tag in result:
if isinstance(result[child.tag], list):
result[child.tag].append(child_data)
else:
result[child.tag] = [result[child.tag], child_data]
else:
result[child.tag] = child_data
return result
def generate_patch_metadata(self, file_path):
# Generate patch metadata.xml
top_tag = ET.Element(PATCH_ROOT_TAG)
self.__add_text_tag_to_xml(top_tag, PATCH_ID, self.patch_id)
self.__add_text_tag_to_xml(top_tag, SW_VERSION, self.sw_version)
self.__add_text_tag_to_xml(top_tag, COMPONENT, self.component)
self.__add_text_tag_to_xml(top_tag, SUMMARY, self.summary)
self.__add_text_tag_to_xml(top_tag, DESCRIPTION, self.description)
self.__add_text_tag_to_xml(top_tag, INSTALL_INSTRUCTIONS, self.install_instructions)
self.__add_text_tag_to_xml(top_tag, WARNINGS, self.warnings)
self.__add_text_tag_to_xml(top_tag, STATUS, self.status)
if self.unremovable.upper() in ["Y","N"]:
self.__add_text_tag_to_xml(top_tag, UNREMOVABLE, self.unremovable.upper())
else:
raise Exception('Supported values for "Unremovable" are Y or N, for "Yes" or "No" respectively')
if self.reboot_required.upper() in ["Y","N"]:
self.__add_text_tag_to_xml(top_tag, REBOOT_REQUIRED, self.reboot_required.upper())
else:
raise Exception('Supported values for "Reboot Required" are Y or N, for "Yes" or "No" respectively')
self.__add_text_tag_to_xml(top_tag, SEMANTICS, self.semantics)
requires_atg = ET.SubElement(top_tag, REQUIRES)
for req_patch in sorted(self.requires):
self.__add_text_tag_to_xml(requires_atg, REQUIRES_PATCH_ID, req_patch)
for script_id, script_path in self.patch_script_paths.items():
script_name = ""
if script_path != None:
script_name = PATCH_SCRIPTS[script_id]
self.__add_text_tag_to_xml(top_tag, script_id, script_name)
if self.activation_scripts:
activation_scripts_tag = ET.SubElement(top_tag, ACTIVATION_SCRIPTS)
for script in self.activation_scripts:
self.__add_text_tag_to_xml(activation_scripts_tag, "script", script.split('/')[-1])
else:
self.__add_text_tag_to_xml(top_tag, ACTIVATION_SCRIPTS, "")
packages_tag = ET.SubElement(top_tag, PACKAGES)
for package in sorted(self.debs):
self.__add_text_tag_to_xml(packages_tag, "deb", package)
# Save xml
outfile = open(file_path, "w")
tree = ET.tostring(top_tag)
outfile.write(minidom.parseString(tree).toprettyxml(indent=" "))
def __tag_to_list(self, tag_content):
if type(tag_content) != list:
return [tag_content]
return tag_content
def _validate_activation_script(self, script_list):
'''
Validate if scripts filename start with an integer
'''
for fullpath_script in script_list:
try:
name = os.path.basename(fullpath_script)
int(name.split("-")[0])
except Exception:
logger.error("Error while parsing the activation script:")
logger.error("Filename '%s' doesn't start with an integer." % fullpath_script)
sys.exit(1)
def parse_metadata(self, patch_recipe):
self.patch_id = f"{patch_recipe[COMPONENT]}-{patch_recipe[SW_VERSION]}"
self.sw_version = patch_recipe[SW_VERSION]
self.component = patch_recipe[COMPONENT]
self.summary = patch_recipe[SUMMARY]
self.description = patch_recipe[DESCRIPTION]
if 'package' in patch_recipe[STX_PACKAGES]:
self.stx_packages = self.__tag_to_list(patch_recipe[STX_PACKAGES]['package'])
if 'package' in patch_recipe[BINARY_PACKAGES]:
self.binary_packages = self.__tag_to_list(patch_recipe[BINARY_PACKAGES]['package'])
self.install_instructions = patch_recipe[INSTALL_INSTRUCTIONS]
self.warnings = patch_recipe[WARNINGS]
self.reboot_required = patch_recipe[REBOOT_REQUIRED]
# For each patch script, validate the path provided
self.patch_script_paths = {
script_id: self.check_script_path(patch_recipe[script_id])
for script_id in PATCH_SCRIPTS.keys()
}
self.unremovable = patch_recipe[UNREMOVABLE]
self.status = patch_recipe[STATUS]
if 'id' in patch_recipe[REQUIRES]:
self.requires = self.__tag_to_list(patch_recipe[REQUIRES]['id'])
self.semantics = patch_recipe[SEMANTICS]
if 'script' in patch_recipe[ACTIVATION_SCRIPTS]:
# the xml parser transform the 'script' value in string or in
# array depending on how much elements we add.
scripts_lst = []
if isinstance(patch_recipe[ACTIVATION_SCRIPTS]['script'], str):
scripts_lst.append(self.check_script_path(patch_recipe[ACTIVATION_SCRIPTS]['script']))
else:
for script in patch_recipe[ACTIVATION_SCRIPTS]['script']:
scripts_lst.append(self.check_script_path(script))
self._validate_activation_script(scripts_lst)
self.activation_scripts = scripts_lst
self.debs = []
if self.status != 'DEV' and self.status != 'REL':
raise Exception('Supported status are DEV and REL, selected')
logger.debug("Metadata parsed: %s", self)
def parse_input_xml_data(self):
# Parse and validate the XML
try:
xml_tree = etree.parse(self.patch_recipe_file)
except Exception as e:
logger.error(f"Error while parsing the input xml {e}")
sys.exit(1)
root = xml_tree.getroot()
xml_schema = etree.XMLSchema(etree.parse(INPUT_XML_SCHEMA))
# Validate the XML against the schema
is_valid = xml_schema.validate(root)
xml_dict = {}
if is_valid:
logger.info("XML is valid against the schema.")
xml_dict = self.__xml_to_dict(root)
else:
logger.error("XML is not valid against the schema. Validation errors:")
for error in xml_schema.error_log:
logger.error(f"Line {error.line}: {error.message}")
sys.exit(1)
logger.info(xml_dict)
self.parse_metadata(xml_dict)
def check_script_path(self, script_path):
""" Process and validate script path
Check if path points to an existing file.
If path is relative, look for the script using as parent dir
the current directory, then fallback to MY_REPO_ROOT_DIR
(ie.: /localdisk/designer/USER/PROJECT/)
"""
# Case: No input provided
if not script_path:
return None
# Cases: Absolute path and path relative to curdir
candidate = os.path.abspath(script_path)
if os.path.isfile(candidate):
return candidate
# Case: Path relative to MY_REPO_ROOT_DIR
parent = utils.get_env_variable('MY_REPO_ROOT_DIR')
candidate = os.path.join(parent, script_path)
if os.path.isfile(candidate):
return candidate
msg = f"Script not found: {script_path}"
logger.error(msg)
raise FileNotFoundError(msg)
if __name__ == "__main__":
patch_recipe_file = f"${PATCH_BUILDER_PATH}/EXAMPLES/patch-recipe-sample.xml"
patch_metadata = PatchMetadata(patch_recipe_file)
patch_metadata.parse_input_xml_data()