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Add CombinedConfig.getVal that raises an exception if the config key is not found.

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This commit is contained in:
Jonathan Bernard 2019-02-18 15:38:30 -06:00
parent b9a69809eb
commit 8036af6bc8
1 changed files with 5 additions and 2 deletions
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cliutils.nim
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@ -10,7 +10,7 @@ type
TermColor = ForegroundColor or BackgroundColor
proc getVal*(cfg: CombinedConfig, key, default: string): string =
proc getVal*(cfg: CombinedConfig, key: string): string =
let argKey = "--" & key
let envKey = key.replace('-', '_').toUpper
let jsonKey = key.replace(re"(-\w)", proc (m: RegexMatch): string = ($m)[1..1].toUpper)
@ -27,8 +27,11 @@ proc getVal*(cfg: CombinedConfig, key, default: string): string =
of JNull: return ""
of JObject: return $node
of JArray: return $node
else: return default
else: raise newException(ValueError, "cannot find a configuration value for \"" & key & "\"")
proc getVal*(cfg: CombinedConfig, key, default: string): string =
try: return getVal(cfg, key)
except: return default
proc loadEnv*(): StringTableRef =
result = newStringTable()