/*
readFiles reads all files with the .go extension and creates their AST.
It also creates a list of local imports (everything starting with ./)
and searches the main package files for the main function.
*/
func readFiles(rootpath string) {
var realpath, symname string
// path walker error channel
errorChannel := make(chan os.Error, 64)
// check if this is a symlink
if dir, err := os.Stat(rootpath); err == nil {
if dir.FollowedSymlink {
realpath, _ = os.Readlink(rootpath)
if realpath[0] != '/' {
realpath = rootpath[0:strings.LastIndex(rootpath, "/")+1] + realpath
}
symname = rootpath[len(rootPath)+1:]
} else {
realpath = rootpath
}
} else {
logger.Warn("%s\n", err)
}
// visitor for the path walker
visitor := &goFileVisitor{rootpath, realpath, symname}
path.Walk(visitor.realpath, visitor, errorChannel)
if err, ok := <-errorChannel; ok {
logger.Error("Error while traversing directories: %s\n", err)
}
}
func walkargs(args []string, paths chan<- string) {
defer close(paths)
errors := make(chan os.Error)
defer close(errors)
var manager Manager
walker := Walker{paths: paths, visited: make(map[string]bool)}
for _, arg := range args {
manager.Go(func(root string) func() {
return func() {
fmt.Println(root)
path.Walk(root, walker, errors)
}
}(arg))
}
go func() {
for {
err := <-errors
if closed(errors) {
return
}
fmt.Println(err)
}
}()
manager.Wait()
}
func main() {
for _, dir := range flag.Args() {
fmt.Printf("dir: %s\n", dir)
errChan := errChan()
path.Walk(dir, Visitor(errChan), errChan)
}
}
func Serve(c net.Conn) {
defer c.Close()
var p string
n, err := fmt.Fscanln(c, &p)
if n != 1 || err != nil {
fmt.Fprint(c, Error("invalid request"))
return
}
filename := *root + path.Clean("/"+p)
fi, err := os.Stat(filename)
if err != nil {
fmt.Fprint(c, Error("not found"))
return
}
if fi.IsDirectory() {
var list Listing
path.Walk(filename, &list, nil)
fmt.Fprint(c, list)
return
}
f, err := os.Open(filename, os.O_RDONLY, 0)
if err != nil {
fmt.Fprint(c, Error("couldn't open file"))
return
}
io.Copy(c, f)
}
func walkDir(path string) {
// start an error handler
v := make(fileVisitor)
go func() {
for err := range v {
if err != nil {
report(err)
}
}
}()
// walk the tree
pathutil.Walk(path, v, v)
close(v)
}
func walkDir(path string) {
// start an error handler
done := make(chan bool)
v := make(fileVisitor)
go func() {
for err := range v {
if err != nil {
report(err)
}
}
done <- true
}()
// walk the tree
pathutil.Walk(path, v, v)
close(v) // terminate error handler loop
<-done // wait for all errors to be reported
}
// NewIndex creates a new index for the file tree rooted at root.
func NewIndex(root string) *Index {
var x Indexer
// initialize Indexer
x.words = make(map[string]*IndexResult)
// collect all Spots
pathutil.Walk(root, &x, nil)
// for each word, reduce the RunLists into a LookupResult;
// also collect the word with its canonical spelling in a
// word list for later computation of alternative spellings
words := make(map[string]*LookupResult)
var wlist RunList
for w, h := range x.words {
decls := reduce(&h.Decls)
others := reduce(&h.Others)
words[w] = &LookupResult{
Decls: decls,
Others: others,
}
wlist.Push(&wordPair{canonical(w), w})
}
// reduce the word list {canonical(w), w} into
// a list of AltWords runs {canonical(w), {w}}
alist := wlist.reduce(lessWordPair, newAltWords)
// convert alist into a map of alternative spellings
alts := make(map[string]*AltWords)
for i := 0; i < alist.Len(); i++ {
a := alist.At(i).(*AltWords)
alts[a.Canon] = a
}
// convert snippet vector into a list
snippets := make([]*Snippet, x.snippets.Len())
for i := 0; i < x.snippets.Len(); i++ {
snippets[i] = x.snippets.At(i).(*Snippet)
}
return &Index{words, alts, snippets, x.nspots}
}
func main() {
// parse and handle options
opts.Parse()
if *showVersion {
ShowVersion()
os.Exit(0)
}
// if there are no files, generate a list
if len(opts.Args) == 0 {
path.Walk(".", GoFileFinder{}, nil)
} else {
for _, fname := range opts.Args {
files.Push(fname)
}
}
GetPackageList()
PrintAutoNotice()
PrintFList()
PrintPList()
fmt.Println("GOPACKAGES = ${GOPKGS:=.${O}}")
fmt.Println("GOARCHIVES = ${GOPKGS:=.a}")
}
func main() {
opts.Usage = "[file1.go [...]]"
opts.Description =
`construct and print a dependency tree for the given source files.`
// parse and handle options
opts.Parse()
if *showVersion {
ShowVersion()
os.Exit(0)
}
// if there are no files, generate a list
if len(opts.Args) == 0 {
path.Walk(".", GoFileFinder{}, nil)
} else {
for _, fname := range opts.Args {
files.Push(fname)
}
}
// for each file, list dependencies
for _, fname := range files {
file, err := parser.ParseFile(fname, nil, parser.ImportsOnly)
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", err)
os.Exit(1)
}
HandleFile(fname, file)
}
PrintAutoNotice()
FindMain()
if *showNeeded {
PrintNeeded(".EXTERNAL: ", ".a")
}
// in any case, print as a comment
PrintNeeded("# external packages: ", "")
PrintDeps()
}
func main() {
flag.Parse()
fmt.Printf(headerString())
// Flag Testing
if *announceUrl == "" {
fmt.Fprintf(os.Stderr, "Must supply an Announce URL parameter (-a).\n")
os.Exit(1)
}
if *torrentFilename == "" {
fmt.Fprintf(os.Stderr, "Must supply a torrent file name to produce.\n")
os.Exit(1)
}
v, resC := newVisitor()
errC := make(chan os.Error)
go func() {
err := <-errC
panic(err)
}()
// Try to open the torrent file. If this fails, it ensures we fail long before the
// hashing commences.
f, err := os.Open(*torrentFilename, os.O_WRONLY|os.O_CREAT|os.O_TRUNC, 0660)
if err != nil {
panic(err)
}
defer f.Close()
args := flag.Args()
for i := range args {
path.Walk(args[i], v, errC)
}
writeTorrent(v, f, resC)
}
func findPackages(dir string) []string {
v := new(packagesVisitor)
path.Walk(dir, v, nil)
return v.packages
}
func findPackageDirs() []string {
srcPkg := path.Join(GOROOT, "src", "pkg")
v := new(pkgDirsVisitor)
path.Walk(srcPkg, v, nil)
return v.pkgDirs
}
func walkDir(dirname string, v path.Visitor) {
// first make sure the directory exists
readDir(dirname)
// now walk it
path.Walk(dirname, v, nil)
}
func (self *fileList) ToSlice() []string {
path.Walk(self.basePath, self, self.Errors)
return self.filenames.Copy()
}
func (this *TempDir) AllFiles() []string {
collector := CollectFilesInDir(this.path)
path.Walk(this.path, collector, nil)
return collector.Files()
}
func main() {
v := &SimpleVisitor{}
errors := make(chan os.Error)
path.Walk("/etc/httpd", v, errors)
}