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* upgrade to use testfixtures v3 * simplify logic * make vendor * update per @lunny * Update templates/repo/empty.tmpl * Update templates/repo/empty.tmpl Co-authored-by: Lauris BH <lauris@nix.lv>
187 lines
5.3 KiB
Go
Vendored
187 lines
5.3 KiB
Go
Vendored
package pflag
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import (
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"fmt"
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"io"
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"net"
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"strings"
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)
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// -- ipSlice Value
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type ipSliceValue struct {
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value *[]net.IP
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changed bool
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}
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func newIPSliceValue(val []net.IP, p *[]net.IP) *ipSliceValue {
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ipsv := new(ipSliceValue)
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ipsv.value = p
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*ipsv.value = val
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return ipsv
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}
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// Set converts, and assigns, the comma-separated IP argument string representation as the []net.IP value of this flag.
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// If Set is called on a flag that already has a []net.IP assigned, the newly converted values will be appended.
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func (s *ipSliceValue) Set(val string) error {
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// remove all quote characters
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rmQuote := strings.NewReplacer(`"`, "", `'`, "", "`", "")
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// read flag arguments with CSV parser
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ipStrSlice, err := readAsCSV(rmQuote.Replace(val))
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if err != nil && err != io.EOF {
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return err
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}
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// parse ip values into slice
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out := make([]net.IP, 0, len(ipStrSlice))
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for _, ipStr := range ipStrSlice {
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ip := net.ParseIP(strings.TrimSpace(ipStr))
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if ip == nil {
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return fmt.Errorf("invalid string being converted to IP address: %s", ipStr)
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}
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out = append(out, ip)
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}
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if !s.changed {
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*s.value = out
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} else {
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*s.value = append(*s.value, out...)
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}
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s.changed = true
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return nil
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}
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// Type returns a string that uniquely represents this flag's type.
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func (s *ipSliceValue) Type() string {
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return "ipSlice"
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}
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// String defines a "native" format for this net.IP slice flag value.
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func (s *ipSliceValue) String() string {
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ipStrSlice := make([]string, len(*s.value))
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for i, ip := range *s.value {
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ipStrSlice[i] = ip.String()
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}
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out, _ := writeAsCSV(ipStrSlice)
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return "[" + out + "]"
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}
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func (s *ipSliceValue) fromString(val string) (net.IP, error) {
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return net.ParseIP(strings.TrimSpace(val)), nil
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}
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func (s *ipSliceValue) toString(val net.IP) string {
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return val.String()
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}
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func (s *ipSliceValue) Append(val string) error {
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i, err := s.fromString(val)
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if err != nil {
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return err
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}
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*s.value = append(*s.value, i)
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return nil
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}
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func (s *ipSliceValue) Replace(val []string) error {
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out := make([]net.IP, len(val))
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for i, d := range val {
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var err error
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out[i], err = s.fromString(d)
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if err != nil {
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return err
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}
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}
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*s.value = out
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return nil
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}
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func (s *ipSliceValue) GetSlice() []string {
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out := make([]string, len(*s.value))
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for i, d := range *s.value {
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out[i] = s.toString(d)
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}
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return out
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}
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func ipSliceConv(val string) (interface{}, error) {
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val = strings.Trim(val, "[]")
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// Empty string would cause a slice with one (empty) entry
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if len(val) == 0 {
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return []net.IP{}, nil
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}
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ss := strings.Split(val, ",")
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out := make([]net.IP, len(ss))
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for i, sval := range ss {
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ip := net.ParseIP(strings.TrimSpace(sval))
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if ip == nil {
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return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
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}
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out[i] = ip
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}
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return out, nil
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}
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// GetIPSlice returns the []net.IP value of a flag with the given name
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func (f *FlagSet) GetIPSlice(name string) ([]net.IP, error) {
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val, err := f.getFlagType(name, "ipSlice", ipSliceConv)
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if err != nil {
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return []net.IP{}, err
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}
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return val.([]net.IP), nil
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}
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// IPSliceVar defines a ipSlice flag with specified name, default value, and usage string.
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// The argument p points to a []net.IP variable in which to store the value of the flag.
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func (f *FlagSet) IPSliceVar(p *[]net.IP, name string, value []net.IP, usage string) {
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f.VarP(newIPSliceValue(value, p), name, "", usage)
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}
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// IPSliceVarP is like IPSliceVar, but accepts a shorthand letter that can be used after a single dash.
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func (f *FlagSet) IPSliceVarP(p *[]net.IP, name, shorthand string, value []net.IP, usage string) {
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f.VarP(newIPSliceValue(value, p), name, shorthand, usage)
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}
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// IPSliceVar defines a []net.IP flag with specified name, default value, and usage string.
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// The argument p points to a []net.IP variable in which to store the value of the flag.
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func IPSliceVar(p *[]net.IP, name string, value []net.IP, usage string) {
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CommandLine.VarP(newIPSliceValue(value, p), name, "", usage)
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}
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// IPSliceVarP is like IPSliceVar, but accepts a shorthand letter that can be used after a single dash.
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func IPSliceVarP(p *[]net.IP, name, shorthand string, value []net.IP, usage string) {
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CommandLine.VarP(newIPSliceValue(value, p), name, shorthand, usage)
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}
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// IPSlice defines a []net.IP flag with specified name, default value, and usage string.
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// The return value is the address of a []net.IP variable that stores the value of that flag.
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func (f *FlagSet) IPSlice(name string, value []net.IP, usage string) *[]net.IP {
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p := []net.IP{}
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f.IPSliceVarP(&p, name, "", value, usage)
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return &p
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}
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// IPSliceP is like IPSlice, but accepts a shorthand letter that can be used after a single dash.
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func (f *FlagSet) IPSliceP(name, shorthand string, value []net.IP, usage string) *[]net.IP {
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p := []net.IP{}
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f.IPSliceVarP(&p, name, shorthand, value, usage)
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return &p
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}
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// IPSlice defines a []net.IP flag with specified name, default value, and usage string.
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// The return value is the address of a []net.IP variable that stores the value of the flag.
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func IPSlice(name string, value []net.IP, usage string) *[]net.IP {
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return CommandLine.IPSliceP(name, "", value, usage)
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}
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// IPSliceP is like IPSlice, but accepts a shorthand letter that can be used after a single dash.
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func IPSliceP(name, shorthand string, value []net.IP, usage string) *[]net.IP {
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return CommandLine.IPSliceP(name, shorthand, value, usage)
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}
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