1 package main
2
3 import (
4 "flag"
5 "fmt"
6 "go/ast"
7 "go/format"
8 "go/parser"
9 "go/token"
10 "log"
11 "os"
12
13 "golang.org/x/tools/go/ast/astutil"
14 )
15
16
17 func issue429() error {
18 f := func(filename string) error {
19 fset := token.NewFileSet()
20 expr, err := parser.ParseFile(fset, filename, nil, parser.ParseComments)
21 if err != nil {
22 return err
23 }
24 n := astutil.Apply(expr, func(cr *astutil.Cursor) bool {
25 if cr.Name() == "Decls" {
26 switch n := cr.Node().(type) {
27 case *ast.FuncDecl:
28 if n.Name.Name == "NetIOCounters" || n.Name.Name == ("NetIOCountersWithContext") {
29 cr.Delete()
30 }
31 }
32 }
33 return true
34 }, nil)
35 return replace(filename, fset, n)
36 }
37
38 root := "process/"
39 fnames := []string{"process.go", "process_darwin.go", "process_fallback.go", "process_freebsd.go", "process_linux.go", "process_openbsd.go", "process_bsd.go", "process_posix.go", "process_windows.go", "process_test.go"}
40 for _, fname := range fnames {
41 if err := f(root + fname); err != nil {
42 log.Fatalln("run 429:", err)
43 }
44 }
45 return nil
46 }
47
48 func issueRemoveUnusedValue() error {
49 f := func(filename string) error {
50 fset := token.NewFileSet()
51 expr, err := parser.ParseFile(fset, filename, nil, parser.ParseComments)
52 if err != nil {
53 return err
54 }
55 n := astutil.Apply(expr, func(cr *astutil.Cursor) bool {
56 if cr.Name() == "Decls" {
57 switch n := cr.Node().(type) {
58 case *ast.GenDecl:
59 if n.Tok != token.TYPE {
60 break
61 }
62 ts := n.Specs[0].(*ast.TypeSpec)
63 if ts.Name.Name == "SystemProcessInformation" {
64 cr.Delete()
65 }
66 }
67 }
68 return true
69 }, nil)
70 return replace(filename, fset, n)
71 }
72
73 if err := f("process/process_windows.go"); err != nil {
74 log.Fatalln("run 429:", err)
75 }
76 return nil
77 }
78
79 func replace(filename string, fset *token.FileSet, n ast.Node) error {
80 if err := os.Remove(filename); err != nil {
81 return err
82 }
83 fp, err := os.Create(filename)
84 if err != nil {
85 return err
86 }
87 defer fp.Close()
88 if err := format.Node(fp, fset, n); err != nil {
89 return err
90 }
91 fp.WriteString("\n")
92 return nil
93 }
94
95 func main() {
96 flag.Parse()
97 for _, n := range flag.Args() {
98 fmt.Println("issue:" + n)
99 switch n {
100 case "429":
101 issue429()
102 case "issueRemoveUnusedValue":
103 issueRemoveUnusedValue()
104 }
105 }
106
107 }
108
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