Configuration file support

[crazyscot]

Like ssh and other utilities, I'd like to be able to set defaults so I don't have to type --rx whatever every time.

Ideas:

• Local config file that provides default settings
• Settings overridable
• User and system-wide config files
• The two endpoints negotiate bandwidth based on their configuration
• Useful error reporting (e.g. syntax error at line 42 of ) is important
• User-friendly file format (while TOML is handy, I don't consider it friendly enough; I am thinking about INI files or something close).

[Lightjohn]

Among the configuration files would it be an option to use ssh config files to get server name equivalent IP and user name?

[crazyscot]

@Lightjohn I like the idea! It's a separate feature, so I have attempted to capture it as #22; does that describe what you had in mind?

[crazyscot]

Configuration files will form the cornerstone of the 0.2 release. Still to do:

• friendlier config file format than TOML (maybe something closer to ssh's config format)
• create a default/template config file; include in the debian package as a conffile
• make parse failure error messages clearer (invalid type, unknown enum variant, invalid port range)
• Update docs/man page