nimbus-eth1/fluffy/tests/test_yaml_utils.nim

42 lines
1.1 KiB
Nim

# fluffy
# Copyright (c) 2024 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [].}
import std/streams, yaml, results
export yaml
type YamlPortalContent* = object
content_key*: string
content_value*: string
proc loadFromYaml*(T: type, file: string): Result[T, string] =
let s =
try:
openFileStream(file)
except IOError as e:
return err(e.msg)
defer:
try:
close(s)
except Exception as e:
raiseAssert(e.msg)
var res: T
try:
{.gcsafe.}:
yaml.load(s, res)
except YamlConstructionError as e:
return err(e.msg)
except YamlParserError as e:
return err(e.msg)
except OSError as e:
return err(e.msg)
except IOError as e:
return err(e.msg)
ok(res)