nimbus-eth1/tests/test_config.nim

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# Nimbus
# Copyright (c) 2019-2024 Status Research & Development GmbH
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# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except
# according to those terms.
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import
std/[parseopt, strutils],
results
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type
ConfigStatus* = enum
## Configuration status flags
Success, ## Success
EmptyOption, ## No options in category
ErrorUnknownOption, ## Unknown option in command line found
ErrorParseOption, ## Error in parsing command line option
ErrorIncorrectOption, ## Option has incorrect value
Error ## Unspecified error
Configuration = ref object
testSubject*: string
fork*: string
index*: Opt[int]
trace*: bool
legacy*: bool
pruning*: bool
json*: bool
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var testConfig {.threadvar.}: Configuration
proc initConfiguration(): Configuration =
result = new Configuration
result.trace = true
result.pruning = true
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proc getConfiguration*(): Configuration {.gcsafe.} =
if isNil(testConfig):
testConfig = initConfiguration()
result = testConfig
proc processArguments*(msg: var string): ConfigStatus =
var
opt = initOptParser()
config = getConfiguration()
result = Success
for kind, key, value in opt.getopt():
case kind
of cmdArgument:
config.testSubject = key
of cmdLongOption, cmdShortOption:
case key.toLowerAscii()
of "fork": config.fork = value
of "index": config.index = Opt.some(parseInt(value))
of "trace": config.trace = parseBool(value)
of "legacy": config.legacy = parseBool(value)
of "pruning": config.pruning = parseBool(value)
of "json": config.json = parseBool(value)
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else:
msg = "Unknown option " & key
if value.len > 0: msg = msg & " : " & value
result = ErrorUnknownOption
break
of cmdEnd:
doAssert(false)