dotnet-installer/package_tool/scripts/config_template_generator.py

232 lines
No EOL
7 KiB
Python

#!/usr/bin/python
#
# Parses debian_config.json and generates appropriate templates
# Where optional defaults exist, they are defined in the template_dict
# of the appropriate generation function
import os
import sys
import json
import datetime
FILE_CHANGELOG = 'changelog'
FILE_CONTROL = 'control'
FILE_COPYRIGHT = 'copyright'
FILE_SYMLINK_FORMAT = '{package_name}.links'
PACKAGE_ROOT_FORMAT = "usr/share/{package_name}"
CHANGELOG_DATE_FORMAT = "%a, %d %b %Y %H:%M:%S %z"
# UTC Timezone for Changelog date
class UTC(datetime.tzinfo):
def utcoffset(self, dt):
return datetime.timedelta(0)
def tzname(self, dt):
return "UTC"
def dst(self, dt):
return datetime.timedelta(0)
# Generation Functions
def generate_and_write_all(config_data, template_dir, output_dir, package_version=None):
try:
changelog_contents = generate_changelog(config_data, template_dir, package_version=package_version)
control_contents = generate_control(config_data, template_dir)
copyright_contents = generate_copyright(config_data, template_dir)
symlink_contents = generate_symlinks(config_data)
except Exception as exc:
print exc
help_and_exit("Error: Generation Failed, check your config file.")
write_file(changelog_contents, output_dir, FILE_CHANGELOG)
write_file(control_contents, output_dir, FILE_CONTROL)
write_file(copyright_contents, output_dir, FILE_COPYRIGHT)
# Symlink File is optional
if symlink_contents:
symlink_filename = get_symlink_filename(config_data)
write_file(symlink_contents, output_dir, symlink_filename)
return
def generate_changelog(config_data, template_dir, package_version=None):
template = get_template(template_dir, FILE_CHANGELOG)
release_data = config_data["release"]
# Allow for Version Override
config_package_version = release_data["package_version"]
if package_version is None:
package_version = config_package_version
template_dict = dict(\
PACKAGE_VERSION=package_version,
PACKAGE_REVISION=release_data["package_revision"],
CHANGELOG_MESSAGE=release_data["changelog_message"],
URGENCY=release_data.get("urgency", "low"),
PACKAGE_NAME=config_data["package_name"],
MAINTAINER_NAME=config_data["maintainer_name"],
MAINTAINER_EMAIL=config_data["maintainer_email"],
DATE=datetime.datetime.now(UTC()).strftime(CHANGELOG_DATE_FORMAT)
)
contents = template.format(**template_dict)
return contents
def generate_control(config_data, template_dir):
template = get_template(template_dir, FILE_CONTROL)
dependency_data = config_data.get("debian_dependencies", None)
dependency_str = get_dependendent_packages_string(dependency_data)
# Default to empty dict, so we don't explode on nested optional values
control_data = config_data.get("control", dict())
template_dict = dict(\
SHORT_DESCRIPTION=config_data["short_description"],
LONG_DESCRIPTION=config_data["long_description"],
HOMEPAGE=config_data.get("homepage", ""),
SECTION=control_data.get("section", "misc"),
PRIORITY=control_data.get("priority", "low"),
ARCH=control_data.get("architecture", "all"),
DEPENDENT_PACKAGES=dependency_str,
PACKAGE_NAME=config_data["package_name"],
MAINTAINER_NAME=config_data["maintainer_name"],
MAINTAINER_EMAIL=config_data["maintainer_email"]
)
contents = template.format(**template_dict)
return contents
def generate_copyright(config_data, template_dir):
template = get_template(template_dir, FILE_COPYRIGHT)
license_data = config_data["license"]
template_dict = dict(\
COPYRIGHT_TEXT=config_data["copyright"],
LICENSE_NAME=license_data["type"],
LICENSE_TEXT=license_data["full_text"]
)
contents = template.format(**template_dict)
return contents
def generate_symlinks(config_data):
symlink_entries = []
package_root_path = get_package_root(config_data)
symlink_data = config_data.get("symlinks", dict())
for package_rel_path, symlink_path in symlink_data.iteritems():
package_abs_path = os.path.join(package_root_path, package_rel_path)
symlink_entries.append( '%s %s' % (package_abs_path, symlink_path) )
return '\n'.join(symlink_entries)
# Helper Functions
def get_package_root(config_data):
package_name = config_data["package_name"]
return PACKAGE_ROOT_FORMAT.format(package_name=package_name)
def get_symlink_filename(config_data):
package_name = config_data["package_name"]
return FILE_SYMLINK_FORMAT.format(package_name=package_name)
def get_dependendent_packages_string(debian_dependency_data):
if debian_dependency_data is None:
return ""
dependencies = []
for debian_package_name in debian_dependency_data:
dep_str = debian_package_name
if debian_dependency_data[debian_package_name].get("package_version", None):
debian_package_version = debian_dependency_data[debian_package_name].get("package_version")
dep_str += " (>= %s)" % debian_package_version
dependencies.append(dep_str)
# Leading Comma is important here
return ', ' + ', '.join(dependencies)
def load_json(json_path):
json_data = None
with open(json_path, 'r') as json_file:
json_data = json.load(json_file)
return json_data
def get_template(template_dir, name):
path = os.path.join(template_dir, name)
template_contents = None
with open(path, 'r') as template_file:
template_contents = template_file.read()
return template_contents
def write_file(contents, output_dir, name):
path = os.path.join(output_dir, name)
with open(path, 'w') as out_file:
out_file.write(contents)
return
# Tool Functions
def help_and_exit(msg):
print msg
sys.exit(1)
def print_usage():
print "Usage: config_template_generator.py [config file path] [template directory path] [output directory] (package version)"
def parse_and_validate_args():
if len(sys.argv) < 4:
print_usage()
help_and_exit("Error: Invalid Arguments")
config_path = sys.argv[1]
template_dir = sys.argv[2]
output_dir = sys.argv[3]
version_override = None
if len(sys.argv) >= 5:
version_override = sys.argv[4]
if not os.path.isfile(config_path):
help_and_exit("Error: Invalid config file path")
if not os.path.isdir(template_dir):
help_and_exit("Error: Invalid template directory path")
if not os.path.isdir(output_dir):
help_and_exit("Error: Invalid output directory path")
return (config_path, template_dir, output_dir, version_override)
def execute():
config_path, template_dir, output_dir, version_override = parse_and_validate_args()
config_data = load_json(config_path)
generate_and_write_all(config_data, template_dir, output_dir, package_version=version_override)
if __name__ == "__main__":
execute()