func (ctxt *context) checkCyclic(c *command, path *vector.StringVector) {
fmt.Printf("checkCyclic %s\n", c.name)
if c.visit {
ctxt.fail("cyclic dependency at %s, path %v", c.name, path)
}
c.visit = true
path.Push(c.name)
for _, e := range c.conns {
if e.gender == Female {
ctxt.checkCyclic(e.male.cmd, path)
}
}
path.Pop()
c.visit = false
}
// convert rpn to nice infix notation and string
// the r must be valid rpn form
func rpnstr(r []int) (ret string) {
s := new(vector.StringVector)
for k, t := range r {
switch t {
case ADD, SUB, MUL, DIV:
a := s.Pop()
b := s.Pop()
if k == len(r)-1 {
s.Push(b + mop[t] + a)
} else {
s.Push("(" + b + mop[t] + a + ")")
}
default:
s.Push(strconv.Itoa(t))
}
}
for _, v := range *s {
ret += v
}
return
}
func main() {
flag.Parse()
if flag.NArg() != 2 {
printUsageAndExit()
}
command := flag.Arg(0)
if command != "build" && command != "test" {
printUsageAndExit()
}
// Grab dependency and file information for every local package, starting
// with the specified one. We consider a package local if it starts with "./".
requiredFiles := make(map[string]*set.StringSet)
packageDeps := make(map[string]*set.StringSet)
specifiedPackage := flag.Arg(1)
var remainingPackages vector.StringVector
remainingPackages.Push(specifiedPackage)
for remainingPackages.Len() > 0 {
packageName := remainingPackages.Pop()
// Have we already processed this directory?
_, alreadyDone := packageDeps[packageName]
if alreadyDone {
continue
}
dir := "./" + packageName
dirInfo := build.GetDirectoryInfo(dir)
if dirInfo.PackageName == "" {
fmt.Printf("Couldn't find .go files to build in directory: %s\n", dir)
os.Exit(1)
}
// Stash information about this package, and add its local dependencies to
// the queue.
requiredFiles[packageName] = dirInfo.Files
packageDeps[packageName] = dirInfo.Deps
// If we're testing and this is the package under test, also add its test
// files and dependencies.
if packageName == specifiedPackage && command == "test" {
requiredFiles[packageName].Union(dirInfo.TestFiles)
packageDeps[packageName].Union(dirInfo.TestDeps)
}
for dep := range packageDeps[packageName].Iter() {
remainingPackages.Push(dep)
}
}
// Order the packages by their dependencies.
totalOrder := deps.BuildTotalOrder(packageDeps)
fmt.Println("Found these packages to compile:")
for _, packageName := range totalOrder {
fmt.Printf(" %s\n", packageName)
}
// Create a directory to hold outputs, deleting the old one first.
os.RemoveAll("igo-out")
os.Mkdir("igo-out", 0700)
// Compile each of the packages in turn.
for _, currentPackage := range totalOrder {
fmt.Printf("\nCompiling package: %s\n", currentPackage)
compileFiles(requiredFiles[currentPackage], currentPackage)
}
// If this is a binary, also link it.
if build.GetDirectoryInfo(specifiedPackage).PackageName == "main" {
linkBinary(specifiedPackage)
}
// If we're testing, create a test runner, build it, and run it.
if command == "test" {
const outputFile = "igo-out/test_runner.go"
testFuncs := build.GetDirectoryInfo(specifiedPackage).TestFuncs
code := test.GenerateTestMain(specifiedPackage, testFuncs)
err := ioutil.WriteFile("igo-out/test_runner.go", strings.Bytes(code), 0600)
if err != nil {
panic(err)
}
var files set.StringSet
files.Insert("igo-out/test_runner.go")
compileFiles(&files, "test_runner")
linkBinary("test_runner")
if !executeCommand("igo-out/test_runner", []string{}, "") {
os.Exit(1)
}
}
}