// List
func List(args []string, format string, all bool) error {
dir := "."
if len(args) > 0 {
dir = args[0]
}
// scan the project directory provided
pkgs, err := packages.Scan(dir)
if err != nil {
return err
}
// remove standard packages
if !all {
pkgs = packages.FilterStdPkgs(pkgs)
}
projectpath, err := packages.ImportPath(dir)
if err != nil {
return err
}
// filter out packages internal to the project
pkgs = strutil.RemovePrefixInStringSlice(projectpath, pkgs)
b, err := packages.Format(pkgs, format)
if err != nil {
return err
}
// print the results to screen
fmt.Printf("%s\n", b)
return nil
}
// ScanProject
func ScanProject(dir string) ([]string, error) {
imports := map[string]bool{}
w := fs.Walk(dir)
for w.Step() {
fstat := w.Stat()
if fstat.IsDir() {
// check if that directory is "_vendor"
n := fstat.Name()
if n == "vendor" || n == "testdata" || []rune(n)[0] == '_' {
w.SkipDir()
continue
}
}
// check for errors
if w.Err() != nil {
return nil, w.Err()
}
fpath := w.Path()
// check the file is a .go file
if strings.HasSuffix(fpath, ".go") {
fset := token.NewFileSet()
// parse only the import declarations in the .go file
f, err := parser.ParseFile(fset, w.Path(), nil, parser.ImportsOnly)
if err != nil {
e := err.Error()
if strings.Contains(e, eofError) {
continue
}
if strings.Contains(e, importPathError) {
for _, i := range f.Imports {
if Valid(i.Path.Value) {
path, err := strconv.Unquote(i.Path.Value)
if err != nil {
return nil, err
}
imports[path] = true
continue
}
}
continue
}
return nil, err
}
// unquote the import path value
for _, i := range f.Imports {
path, err := strconv.Unquote(i.Path.Value)
if err != nil {
return nil, err
}
imports[path] = true
}
}
}
for path := range imports {
for _, exception := range Exceptions {
if Match(path, exception) {
imports[path] = false
}
}
}
paths := []string{}
for path, ok := range imports {
if ok {
paths = append(paths, path)
}
}
paths = FilterStdPkgs(paths)
projectpath, err := ImportPath(".")
if err != nil {
return nil, err
}
// filter out packages internal to the project
paths = strutil.RemovePrefixInStringSlice(projectpath, paths)
return paths, nil
}