fileserver: Exclude symlink target size from total, show arrow on size

[francislavoie]

Closes #6409

[steffenbusch]

Can't you at least add a browseTemplateContext method to retrieve the current total size of all files in the listing, so I (sponsor) can at least show what should be shown to my users with my custom browse.html?

[francislavoie]

You mean calculate both totals? I guess we can.

[steffenbusch]

You mean calculate both totals?

Yes, exaclty.

In modules/caddyhttp/fileserver/browsetplcontext.go, this one was added by me for #6002

// HumanTotalFileSize returns the total size of all files
// in the listing as a human-readable string in IEC format
// (i.e. power of 2 or base 1024).
func (btc browseTemplateContext) HumanTotalFileSize() string {
	return humanize.IBytes(uint64(btc.TotalFileSize))
}

[mholt]

Nice, I like this idea overall. Thanks for the patch.

Just some questions regarding nuance / implementation.