prevent printing usages on error

[nabuskey]

Set SilenceUsage: true, for commands to prevent usages from being printed every time an error occurs.

before:

idpbuilder get secrets
Error: getting kube config: invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable
Usage:
  idpbuilder get secrets [flags]

Flags:
  -h, --help   help for secrets

Global Flags:
      --color              Enable colored log messages.
  -l, --log-level string   Set the log verbosity. Supported values are: debug, info, warn, and error. (default "info")
  -o, --output string      Output format. json or yaml.
  -p, --packages strings   names of packages.

getting kube config: invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable

After:

idpbuilder get secrets
Error: getting kube config: invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable
getting kube config: invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable

fixes: #439

[cmoulliard]

I did a test where I provided a wrong package to the command

Before:

❯ ./idpbuilder get secrets -p argocdddd
Error: listing secrets: failed to get API group resources: unable to retrieve the complete list of server APIs: v1: Get "https://127.0.0.1:51605/api/v1": dial tcp 127.0.0.1:51605: connect: connection refused
Usage:
  idpbuilder get secrets [flags]

Flags:
  -h, --help   help for secrets

Global Flags:
      --color              Enable colored log messages.
  -l, --log-level string   Set the log verbosity. Supported values are: debug, info, warn, and error. (default "info")
  -o, --output string      Output format. json or yaml.
  -p, --packages strings   names of packages.

listing secrets: failed to get API group resources: unable to retrieve the complete list of server APIs: v1: Get "https://127.0.0.1:51605/api/v1": dial tcp 127.0.0.1:51605: connect: connection refused

After:

❯ ./idpbuilder get secrets -p argocdddd
Error: listing secrets: failed to get API group resources: unable to retrieve the complete list of server APIs: v1: Get "https://127.0.0.1:51605/api/v1": dial tcp 127.0.0.1:51605: connect: connection refused
listing secrets: failed to get API group resources: unable to retrieve the complete list of server APIs: v1: Get "https://127.0.0.1:51605/api/v1": dial tcp 127.0.0.1:51605: connect: connection refused

Note: We should review how we log messages too as error is reported twice. This ticket could be used for that purpose: #450

[nabuskey]

Yeah we should definitely look into why errors are being printed twice.