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Implement new backend config system

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This unifies the 3 methods of reading config

  * command line
  * environment variable
  * config file

And allows them all to be configured in all places.  This is done by
making the []fs.Option in the backend registration be the master
source of what the backend options are.

The backend changes are:

  * Use the new configmap.Mapper parameter
  * Use configstruct to parse it into an Options struct
  * Add all config to []fs.Option including defaults and help
  * Remove all uses of pflag
  * Remove all uses of config.FileGet
This commit is contained in:
Nick Craig-Wood
2018-05-14 18:06:57 +01:00
parent 3c89406886
commit f3f48d7d49
48 changed files with 2393 additions and 1276 deletions
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8
fs/config.go
View File

@@ -17,6 +17,14 @@ var (
// implementation from the fs
ConfigFileGet = func(section, key string) (string, bool) { return "", false }
// Set a value into the config file
//
// This is a function pointer to decouple the config
// implementation from the fs
ConfigFileSet = func(section, key, value string) {
Errorf(nil, "No config handler to set %q = %q in section %q of the config file", key, value, section)
}
// CountError counts an error. If any errors have been
// counted then it will exit with a non zero error code.
//