func TestStringBuffer(t *testing.T) {
ss := stringbuffer.New()
ss.Add("en")
if ss.String() != "en" {
t.Fatal(" stringbuffer.String() != 'en'\n")
}
ss.Add("to")
if ss.String() != "ento" {
t.Fatal(" stringbuffer.String() != 'ento'\n")
}
if ss.Len() != 4 {
t.Fatal(" stringbuffer.Len() != 4\n")
}
ss.Add("øæå") // utf-8 multi-byte fun
if ss.Len() != 10 {
t.Fatal(" stringbuffer.Len() != 10\n")
}
if ss.String() != "entoøæå" {
t.Fatal(" stringbuffer.String() != 'entoøæå'\n")
}
ss.ClearSize(2)
if ss.Len() != 0 {
t.Fatal(" stringbuffer.Len() != 0\n")
}
for i := 0; i < 20; i++ {
if ss.Len() != i {
t.Fatal(" stringbuffer.Len() != i")
}
ss.Add("a")
}
if ss.String() != "aaaaaaaaaaaaaaaaaaaa" {
t.Fatal(" stringbuffer.String() != a * 20")
}
}
func (c *collector) String() string {
sb := stringbuffer.New()
sb.Add("\nimport(\n")
for i := 0; i < len(c.deps); i++ {
sb.Add(" " + c.deps[i] + "\n")
}
sb.Add(")\n\n")
return sb.String()
}
func Make(fname string, pkgs []*dag.Package, alien []string) {
if handy.IsFile(fname) {
modImport, iOk := hasModifiedImports(fname)
if iOk {
m[Imports] = modImport
}
modPlay, pOk := hasModifiedPlayground(fname)
if pOk {
m[Playground] = modPlay
}
if pOk || iOk {
dn, fn := filepath.Split(fname)
backupFname := filepath.Join(dn, "."+fn+".bak")
e := os.Rename(fname, backupFname)
if e != nil {
log.Printf("[WARNING] failed to make backup of: %s\n", fname)
}
}
}
sb := stringbuffer.New()
sb.Add(fmt.Sprintf(m[Header], time.UTC()))
sb.Add(m[Imports])
sb.Add(m[Targets])
sb.Add("// PLAYGROUND START\n")
sb.Add(m[Playground])
sb.Add("// PLAYGROUND STOP\n")
sb.Add(m[Init])
for i := 0; i < len(alien); i++ {
alien[i] = `"` + alien[i] + `"`
}
sb.Add(fmt.Sprintf(m[GoInstall], strings.Join(alien, ",")))
sb.Add(m[Compile])
sb.Add(m[PackageDef])
sb.Add(m[PackageStart])
for i := 0; i < len(pkgs); i++ {
sb.Add(pkgs[i].Rep())
}
sb.Add("\n}\n")
sb.Add(m[Main])
ioutil.WriteFile(fname, sb.Bytes(), 0644)
}