func newDirTree(path, name string, depth int) *Directory {
if depth <= 0 {
// return a dummy directory so that the parent directory
// doesn't get discarded just because we reached the max
// directory depth
return &Directory{path, name, nil}
}
list, _ := io.ReadDir(path) // ignore errors
// determine number of subdirectories and package files
ndirs := 0
nfiles := 0
for _, d := range list {
switch {
case isPkgDir(d):
ndirs++
case isPkgFile(d):
nfiles++
}
}
// create subdirectory tree
var dirs []*Directory
if ndirs > 0 {
dirs = make([]*Directory, ndirs)
i := 0
for _, d := range list {
if isPkgDir(d) {
dd := newDirTree(pathutil.Join(path, d.Name), d.Name, depth-1)
if dd != nil {
dirs[i] = dd
i++
}
}
}
dirs = dirs[0:i]
}
// if there are no package files and no subdirectories
// (with package files), ignore the directory
if nfiles == 0 && len(dirs) == 0 {
return nil
}
return &Directory{path, name, dirs}
}
func serveDirectory(c *http.Conn, r *http.Request, path string) {
if redirect(c, r) {
return
}
list, err := io.ReadDir(path)
if err != nil {
http.NotFound(c, r)
return
}
var buf bytes.Buffer
if err := dirlistHTML.Execute(list, &buf); err != nil {
log.Stderrf("dirlistHTML.Execute: %s", err)
}
servePage(c, "Directory "+path, "", buf.Bytes())
}
func walk(path string, d *os.Dir, v Visitor, errors chan<- os.Error) {
if !d.IsDirectory() {
v.VisitFile(path, d)
return
}
if !v.VisitDir(path, d) {
return // skip directory entries
}
list, err := io.ReadDir(path)
if err != nil {
if errors != nil {
errors <- err
}
}
for _, e := range list {
walk(Join(path, e.Name), e, v, errors)
}
}
func allPaged(c *http.Conn, req *http.Request, page int) {
files, ok := io.ReadDir(PATH)
sort.Sort(pasteList(files))
if ok != nil {
c.Write(strings.Bytes("Error reading pastes directory.\n"))
return
}
offset := PER_PAGE * (page - 1)
limit := len(files) - offset
if limit > PER_PAGE {
limit = PER_PAGE
}
if limit < 0 {
c.Write(strings.Bytes("Page too far.\n"))
return
}
pastes := make([]string, limit)
for i, j := 0, offset; j < offset+limit; j++ {
if strings.HasPrefix(files[j].Name, "private:") {
limit++
continue
}
pastes[i] = files[j].Name
i++
}
prev := ""
if page > 1 {
prev = "/all/page/" + strconv.Itoa(page-1)
}
next := ""
if len(files)/PER_PAGE > page {
next = "/all/page/" + strconv.Itoa(page+1)
}
codeList := make([]string, len(pastes))
results := make(chan int)
for i, paste := range pastes {
go func(i int, paste string) {
code, err := prettyPaste(paste, 10)
if err != nil {
code[0] = err.String()
}
codeList[i] =
fmt.Sprintf(
H2(
"Paste ",
A("#%s").Attrs(As{
"href": "/view/%s",
})).Out(),
paste, paste) + code[0]
results <- i
}(i, paste)
}
for i := 0; i < len(pastes); i++ {
<-results
}
theme := curTheme(req)
allPage.Execute(allEnv{prev, next, codeList, theme, themeSelect(theme)}, c)
}
func newDirTree(path, name string, depth, maxDepth int) *Directory {
if depth >= maxDepth {
// return a dummy directory so that the parent directory
// doesn't get discarded just because we reached the max
// directory depth
return &Directory{depth, path, name, "", nil}
}
list, _ := io.ReadDir(path) // ignore errors
// determine number of subdirectories and package files
ndirs := 0
nfiles := 0
text := ""
for _, d := range list {
switch {
case isPkgDir(d):
ndirs++
case isPkgFile(d):
nfiles++
if text == "" {
// no package documentation yet; take the first found
file, err := parser.ParseFile(pathutil.Join(path, d.Name), nil,
parser.ParseComments|parser.PackageClauseOnly)
if err == nil &&
// Also accept fakePkgName, so we get synopses for commmands.
// Note: This may lead to incorrect results if there is a
// (left-over) "documentation" package somewhere in a package
// directory of different name, but this is very unlikely and
// against current conventions.
(file.Name.Value == name || file.Name.Value == fakePkgName) &&
file.Doc != nil {
// found documentation; extract a synopsys
text = firstSentence(doc.CommentText(file.Doc))
}
}
}
}
// create subdirectory tree
var dirs []*Directory
if ndirs > 0 {
dirs = make([]*Directory, ndirs)
i := 0
for _, d := range list {
if isPkgDir(d) {
dd := newDirTree(pathutil.Join(path, d.Name), d.Name, depth+1, maxDepth)
if dd != nil {
dirs[i] = dd
i++
}
}
}
dirs = dirs[0:i]
}
// if there are no package files and no subdirectories
// (with package files), ignore the directory
if nfiles == 0 && len(dirs) == 0 {
return nil
}
return &Directory{depth, path, name, text, dirs}
}
