harbor/make/photon/prepare/commands/migrate.py

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import os, sys, importlib, shutil, glob
from packaging import version
import click
from utils.misc import get_realpath
from utils.migration import read_conf, search
from migrations import accept_versions
@click.command()
@click.option('-i', '--input', 'input_', required=True, help="The path of original config file")
@click.option('-o', '--output', default='', help="the path of output config file")
@click.option('-t', '--target', default='2.0.0', help="target version of input path")
def migrate(input_, output, target):
"""
migrate command will migrate config file style to specific version
"""
if target not in accept_versions:
click.echo('target version {} not supported'.format(target))
sys.exit(-1)
if not output:
output = input_
input_path = get_realpath(input_)
output_path = get_realpath(output)
configs = read_conf(input_path)
input_version = configs.get('_version')
if version.parse(input_version) < version.parse('1.9.0'):
click.echo('the version {} not supported, make sure the version in input file above 1.8.0'.format(input_version))
sys.exit(-1)
if input_version == target:
click.echo("Version of input harbor.yml is identical to target {}, no need to upgrade".format(input_version))
sys.exit(0)
current_input_path = input_path
for m in search(input_version, target):
current_output_path = "harbor.yml.{}.tmp".format(m.revision)
click.echo("migrating to version {}".format(m.revision))
m.migrate(current_input_path, current_output_path)
current_input_path = current_output_path
shutil.copy(current_input_path, output_path)
click.echo("Written new values to {}".format(output))
for tmp_f in glob.glob("harbor.yml.*.tmp"):
os.remove(tmp_f)