tools/appvm
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Do not install to user profile

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dump_stack() 2020-01-04 10:52:16 +00:00
parent 49b8790032
commit d973179557
Signed by: dump_stack
GPG Key ID: BE44DA8C062D87DC
1 changed files with 16 additions and 30 deletions
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46
generate.go
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@ -34,15 +34,8 @@ in {
}
`
func isPackageExists(name string) bool {
// TODO use something like a
// nix-build '<channel>' -A name
// to avoid installation to user profile
cmd := exec.Command("nix-env", "-iA", name)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err := cmd.Run()
return err == nil
func isPackageExists(channel, name string) bool {
return nil == exec.Command("nix-build", "<"+channel+">", "-A", name).Run()
}
func nixPath(name string) (path string, err error) {
@ -84,33 +77,37 @@ func filterDotfiles(files []os.FileInfo) (notHiddenFiles []os.FileInfo) {
}
func generate(l *libvirt.Libvirt, pkg, bin, vmname string) (err error) {
var name string
// TODO refactor
var name, channel string
if strings.Contains(pkg, ".") {
name = pkg
channel = strings.Split(pkg, ".")[0]
name = strings.Join(strings.Split(pkg, ".")[1:], ".")
} else {
log.Println("Package name does not contains channel")
log.Println("Trying to guess")
var channel string
channel, err = guessChannel()
if err != nil {
log.Println("Cannot guess channel")
log.Println("Check nix-channel --list")
return
log.Println("Will try <nixpkgs>")
channel = "nixpkgs"
err = nil
}
name = channel + "." + pkg
log.Println("Use", name)
name = pkg
log.Println("Use", channel+"."+pkg)
}
if !isPackageExists(name) {
if !isPackageExists(channel, name) {
s := "Package " + name + " does not exists"
err = errors.New(s)
log.Println(s)
return
}
path, err := nixPath(name)
path, err := nixPath(channel + "." + name)
if err != nil {
log.Println("Cannot find nix path")
return
@ -174,25 +171,14 @@ func generate(l *libvirt.Libvirt, pkg, bin, vmname string) (err error) {
bin = files[0].Name()
}
var realName string
for i, s := range strings.Split(name, ".") {
if i == 0 {
continue
}
if i != 1 {
realName += "."
}
realName += s
}
var appFilename string
if vmname != "" {
appFilename = configDir + "/nix/" + vmname + ".nix"
} else {
appFilename = configDir + "/nix/" + realName + ".nix"
appFilename = configDir + "/nix/" + name + ".nix"
}
appNixConfig := fmt.Sprintf(template, realName, bin)
appNixConfig := fmt.Sprintf(template, name, bin)
err = ioutil.WriteFile(appFilename, []byte(appNixConfig), 0600)
if err != nil {