Too eager permission check

[blaggacao]

nix2container/nix/graph.go

Lines 84 to 87 in 3853e5c

	if current.options != nil && !reflect.DeepEqual(current.options.Perms, options.Perms) {
	return fmt.Errorf("The file '%s' already exists in the tar with perms %#v but is overridden with perms %#v",
	dstPath, current.options.Perms, options.Perms)
	}

This function implement a way too eager check on this unit:

layers.json> The file '/bin' already exists in the tar with perms []types.Perm(nil) but is overriden with perms []types.Perm{
  types.Perm{
    Regex:"/home/nobody",
    Mode:"0744",
    Uid:65534,
    Gid:65534,
    Uname:"nobody",
    Gname:"nogroup"
  },
  types.Perm{
    Regex:"/var/lib/frappix/(sites|config).*",
    Mode:"0777",
    Uid:65534,
    Gid:65534,
    Uname:"nobody",
    Gname:"nobody"
  }}

How to produce this unit?

• coypToRoot = [ pkgs.coreutils ]; (has /bin)
• root = buildEnv { ... }; with another thing that has /bin, while also using root in perms = [{path = root; regex = "/var/lib/frappix/(sites|config).*"; ... }];
• coypToRoot += [ root ];

[whs-dot-hk]

Hit similar error today, any workaround?