func (ag *AptGet) setPackages(args haiconf.CommandArgs) error {
pl, _ := haiconf.CheckStringList("Packages", args)
if len(pl) > 0 {
ag.Packages = stringutils.RemoveDuplicates(pl)
return nil
}
pfs, _ := haiconf.CheckAbsolutePath("PackagesFromSource", args)
if pfs != "" {
buff, err := ioutil.ReadFile(pfs)
if err != nil {
return err
}
nlSplit := func(r rune) bool {
if r == '\n' {
return true
}
return false
}
pkgs := strings.FieldsFunc(string(buff), nlSplit)
ag.Packages = stringutils.RemoveDuplicates(pkgs)
return nil
}
msg := "You must provide a value for either Packages or PackagesFromSource"
return haiconf.NewArgError(msg, args)
}
func (ag *AptGet) Run() error {
// Check if we could use APT's native API instead of calling an external command
// It seems we can use C++ with CGO by using Swig.
//
// Using the API directly would be much more efficient and less risky that
// calling a system command which is kind of ugly.
//
// Interesting links:
// http://golang.org/doc/faq#Do_Go_programs_link_with_Cpp_programs
// http://www.swig.org/Doc2.0/Go.html
// XXX : crap
args := append(defaultOptions, ag.Method)
args = stringutils.RemoveDuplicates(append(args, ag.ExtraOptions...))
args = stringutils.RemoveDuplicates(append(args, ag.Packages...))
sc := osutils.SystemCommand{
Path: APT_GET,
Args: args,
EnvVars: envVariables,
ExecDir: os.TempDir(),
EnableShellExpansion: true,
}
output := sc.Run()
if output.HasError() {
return output
}
return nil
}
func (ag *AptGet) setExtraOptions(args haiconf.CommandArgs) error {
xtraOpts, _ := haiconf.CheckStringList("ExtraOptions", args)
l := len(xtraOpts)
if l > 0 {
ag.ExtraOptions = stringutils.RemoveDuplicates(xtraOpts)
}
return nil
}