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add changed-fields support for migrating the config file (e.g. always migrate the version number between releases)

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This commit is contained in:
Jude Nelson
2017-04-05 11:23:40 -04:00
parent 61fbd0576d
commit 62ffdd5a23
1 changed files with 23 additions and 1 deletions
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24
blockstack_client/config.py
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@@ -847,20 +847,30 @@ def read_config_file(config_path=CONFIG_PATH, set_migrate=False):
},
}
changed_fields_014_1 = {
'blockstack-client': {
'client_version': VERSION
}
}
# grow this list with future releases...
renamed_fields = [renamed_fields_014_1]
removed_fields = [dropped_fields_014_1]
added_fields = [added_fields_014_1]
changed_fields = [changed_fields_014_1]
migrated = False
assert len(renamed_fields) == len(removed_fields)
assert len(removed_fields) == len(added_fields)
assert len(added_fields) == len(changed_fields)
for i in xrange(0, len(renamed_fields)):
# order: rename, add, drop
# order: rename, add, drop, change
renamed_field_set = renamed_fields[i]
dropped_field_set = removed_fields[i]
added_field_set = added_fields[i]
changed_field_set = changed_fields[i]
for sec in renamed_field_set.keys():
if ret.has_key(sec):
@@ -897,6 +907,18 @@ def read_config_file(config_path=CONFIG_PATH, set_migrate=False):
del ret[sec][dropped_field_name]
migrated = True
for sec in changed_field_set.keys():
if not ret.has_key(sec):
ret[sec] = {}
for changed_field_name in changed_field_set[sec]:
if ret[sec][changed_field_name] != changed_field_set[sec][changed_field_name]:
log.debug("Change {}.{} to {}".format(sec, changed_field_name, changed_field_set[sec][changed_field_name]))
ret[sec][changed_field_name] = changed_field_set[sec][changed_field_name]
migrated = True
# overrides from the environment
env_overrides = {