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Stabilize the logic for setting-alias conflicts [#66]

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This includes a refactor to the way aliases are processed. I had been
thinking in terms of locking down the aliases names pretty tightly, in
order to provide an error if there are conflicts. After discussion with
@josmo, though, it seems like we can do it the same way we do for
"PLUGIN_"/non-prefixed variables, i.e. quietly override them.
This commit is contained in:
Erin Call
2020-01-08 09:31:22 -08:00
parent 1d1117ba49
commit 6aa1d79d56
2 changed files with 36 additions and 37 deletions
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63
internal/helm/config.go
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@@ -53,7 +53,25 @@ type Config struct {
// NewConfig creates a Config and reads environment variables into it, accounting for several possible formats.
func NewConfig(stdout, stderr io.Writer) (*Config, error) {
var aliases settingAliases
if err := envconfig.Process("plugin", &aliases); err != nil {
return nil, err
}
if err := envconfig.Process("", &aliases); err != nil {
return nil, err
}
cfg := Config{
Command: aliases.Command,
AddRepos: aliases.AddRepos,
APIServer: aliases.APIServer,
ServiceAccount: aliases.ServiceAccount,
Wait: aliases.Wait,
Force: aliases.Force,
KubeToken: aliases.KubeToken,
Certificate: aliases.Certificate,
Stdout: stdout,
Stderr: stderr,
}
@@ -65,35 +83,6 @@ func NewConfig(stdout, stderr io.Writer) (*Config, error) {
return nil, err
}
var aliases settingAliases
if err := envconfig.Process("plugin", &aliases); err != nil {
return nil, err
}
if aliases.Command != nil {
cfg.Command = *aliases.Command
}
if aliases.AddRepos != nil {
cfg.AddRepos = *aliases.AddRepos
}
if aliases.APIServer != nil {
cfg.APIServer = *aliases.APIServer
}
if aliases.ServiceAccount != nil {
cfg.ServiceAccount = *aliases.ServiceAccount
}
if aliases.Wait != nil {
cfg.Wait = *aliases.Wait
}
if aliases.Force != nil {
cfg.Force = *aliases.Force
}
if aliases.KubeToken != nil {
cfg.KubeToken = *aliases.KubeToken
}
if aliases.Certificate != nil {
cfg.Certificate = *aliases.Certificate
}
if justNumbers.MatchString(cfg.Timeout) {
cfg.Timeout = fmt.Sprintf("%ss", cfg.Timeout)
}
@@ -125,12 +114,12 @@ func (cfg *Config) deprecationWarn() {
}
type settingAliases struct {
Command *string `envconfig:"mode"`
AddRepos *[]string `envconfig:"add_repos"`
APIServer *string `envconfig:"kube_api_server"`
ServiceAccount *string `envconfig:"kube_service_account"`
Wait *bool `envconfig:"wait_for_upgrade"`
Force *bool `envconfig:"force_upgrade"`
KubeToken *string `envconfig:"kube_token"`
Certificate *string `envconfig:"kube_certificate"`
Command string `envconfig:"mode"`
AddRepos []string `envconfig:"add_repos"`
APIServer string `envconfig:"kube_api_server"`
ServiceAccount string `envconfig:"kube_service_account"`
Wait bool `envconfig:"wait_for_upgrade"`
Force bool `envconfig:"force_upgrade"`
KubeToken string `envconfig:"kube_token"`
Certificate string `envconfig:"kube_certificate"`
}