hi. i see a video on youtube about cobra (cli)
in a package c
c/c.go // root-command
c/s.go // sub-command
--c.go-
var c = &cobra.Command {}
--s.go--
var s = &cobra.Command{
}
func init(){
c.AddCommand( s, .. )
}
go-build ok
but if i run the program it crashes and i am told that s poinzrt is nil or
invalid.
so i thought that func init() is package-initialiser and maybe s is not
initialized, so i left declaration
var s * command.Cobra = nil // explicit set to nil
in package-scope and moved initialization into init function
func init () {
s = & cobra.Command { .. }
if s!=nil and c!=nil {
c.AddCommand(s)
} else { panic("nilpointer") }
}
but in the end, not the s was invalid but the c.
if there is a package-directory c/ and a.go b.go c.go all in same 'package
c' are they initialized in alphabetic order ? or if there is an
init-function (i.e in b.go ) using a symbol from a.go, is then the
init-function in a.go called before ?
why initializing a pointer in package-scope is done before (success), but
inside init-function in the order the source-files are handled (crash) ?
thanks in advance, andi
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