added global appendable Flags (#12)

[root360-AndreasUlm]

PR to discuss global flag options.

Signed-off-by: Andreas Ulm andreas.ulm@root360.de

[zeripath]

You might want to take a look at the way I've done it in the main Gitea binary. I'm not certain that the technique used there is definitely applicable but it shows a way of doing global options without referencing multiple files.

[root360-AndreasUlm]

You might want to take a look at the way I've done it in the main Gitea binary. I'm not certain that the technique used there is definitely applicable but it shows a way of doing global options without referencing multiple files.

This technique (https://github.com/go-gitea/gitea/blob/master/main.go#L97) does not work for tea as there are no flags that are required for all commands. The mostly used flags are --login, --output and --repo but those are not used by the subcommands login and logout. That's why I think this technique is not suited for tea.

[zeripath]

Fair enough. I'm not particularly au fait with how tea does things but saw what you were doing looked slightly similar.

[root360-AndreasUlm]

This PR can IMHO be merged now as I'm done with the implementation.
After merging it I'll rebase and update #25 and #13.