switch from godep to glide

This commit is contained in:
Tomas Kral
2016-12-07 19:57:19 +01:00
parent 862419b836
commit fe679fbca6
861 changed files with 16916 additions and 81678 deletions
-17
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@@ -1,17 +0,0 @@
sudo: false
language: go
go:
- 1.5.4
- 1.6.3
- tip
install:
- go get github.com/golang/lint/golint
- export PATH=$GOPATH/bin:$PATH
- go install ./...
script:
- verify/all.sh -v
- go test ./...
-275
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@@ -1,275 +0,0 @@
[![Build Status](https://travis-ci.org/spf13/pflag.svg?branch=master)](https://travis-ci.org/spf13/pflag)
## Description
pflag is a drop-in replacement for Go's flag package, implementing
POSIX/GNU-style --flags.
pflag is compatible with the [GNU extensions to the POSIX recommendations
for command-line options][1]. For a more precise description, see the
"Command-line flag syntax" section below.
[1]: http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
pflag is available under the same style of BSD license as the Go language,
which can be found in the LICENSE file.
## Installation
pflag is available using the standard `go get` command.
Install by running:
go get github.com/spf13/pflag
Run tests by running:
go test github.com/spf13/pflag
## Usage
pflag is a drop-in replacement of Go's native flag package. If you import
pflag under the name "flag" then all code should continue to function
with no changes.
``` go
import flag "github.com/spf13/pflag"
```
There is one exception to this: if you directly instantiate the Flag struct
there is one more field "Shorthand" that you will need to set.
Most code never instantiates this struct directly, and instead uses
functions such as String(), BoolVar(), and Var(), and is therefore
unaffected.
Define flags using flag.String(), Bool(), Int(), etc.
This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
``` go
var ip *int = flag.Int("flagname", 1234, "help message for flagname")
```
If you like, you can bind the flag to a variable using the Var() functions.
``` go
var flagvar int
func init() {
flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
}
```
Or you can create custom flags that satisfy the Value interface (with
pointer receivers) and couple them to flag parsing by
``` go
flag.Var(&flagVal, "name", "help message for flagname")
```
For such flags, the default value is just the initial value of the variable.
After all flags are defined, call
``` go
flag.Parse()
```
to parse the command line into the defined flags.
Flags may then be used directly. If you're using the flags themselves,
they are all pointers; if you bind to variables, they're values.
``` go
fmt.Println("ip has value ", *ip)
fmt.Println("flagvar has value ", flagvar)
```
There are helpers function to get values later if you have the FlagSet but
it was difficult to keep up with all of the flag pointers in your code.
If you have a pflag.FlagSet with a flag called 'flagname' of type int you
can use GetInt() to get the int value. But notice that 'flagname' must exist
and it must be an int. GetString("flagname") will fail.
``` go
i, err := flagset.GetInt("flagname")
```
After parsing, the arguments after the flag are available as the
slice flag.Args() or individually as flag.Arg(i).
The arguments are indexed from 0 through flag.NArg()-1.
The pflag package also defines some new functions that are not in flag,
that give one-letter shorthands for flags. You can use these by appending
'P' to the name of any function that defines a flag.
``` go
var ip = flag.IntP("flagname", "f", 1234, "help message")
var flagvar bool
func init() {
flag.BoolVarP("boolname", "b", true, "help message")
}
flag.VarP(&flagVar, "varname", "v", 1234, "help message")
```
Shorthand letters can be used with single dashes on the command line.
Boolean shorthand flags can be combined with other shorthand flags.
The default set of command-line flags is controlled by
top-level functions. The FlagSet type allows one to define
independent sets of flags, such as to implement subcommands
in a command-line interface. The methods of FlagSet are
analogous to the top-level functions for the command-line
flag set.
## Setting no option default values for flags
After you create a flag it is possible to set the pflag.NoOptDefVal for
the given flag. Doing this changes the meaning of the flag slightly. If
a flag has a NoOptDefVal and the flag is set on the command line without
an option the flag will be set to the NoOptDefVal. For example given:
``` go
var ip = flag.IntP("flagname", "f", 1234, "help message")
flag.Lookup("flagname").NoOptDefVal = "4321"
```
Would result in something like
| Parsed Arguments | Resulting Value |
| ------------- | ------------- |
| --flagname=1357 | ip=1357 |
| --flagname | ip=4321 |
| [nothing] | ip=1234 |
## Command line flag syntax
```
--flag // boolean flags, or flags with no option default values
--flag x // only on flags without a default value
--flag=x
```
Unlike the flag package, a single dash before an option means something
different than a double dash. Single dashes signify a series of shorthand
letters for flags. All but the last shorthand letter must be boolean flags
or a flag with a default value
```
// boolean or flags where the 'no option default value' is set
-f
-f=true
-abc
but
-b true is INVALID
// non-boolean and flags without a 'no option default value'
-n 1234
-n=1234
-n1234
// mixed
-abcs "hello"
-absd="hello"
-abcs1234
```
Flag parsing stops after the terminator "--". Unlike the flag package,
flags can be interspersed with arguments anywhere on the command line
before this terminator.
Integer flags accept 1234, 0664, 0x1234 and may be negative.
Boolean flags (in their long form) accept 1, 0, t, f, true, false,
TRUE, FALSE, True, False.
Duration flags accept any input valid for time.ParseDuration.
## Mutating or "Normalizing" Flag names
It is possible to set a custom flag name 'normalization function.' It allows flag names to be mutated both when created in the code and when used on the command line to some 'normalized' form. The 'normalized' form is used for comparison. Two examples of using the custom normalization func follow.
**Example #1**: You want -, _, and . in flags to compare the same. aka --my-flag == --my_flag == --my.flag
``` go
func wordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
from := []string{"-", "_"}
to := "."
for _, sep := range from {
name = strings.Replace(name, sep, to, -1)
}
return pflag.NormalizedName(name)
}
myFlagSet.SetNormalizeFunc(wordSepNormalizeFunc)
```
**Example #2**: You want to alias two flags. aka --old-flag-name == --new-flag-name
``` go
func aliasNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
switch name {
case "old-flag-name":
name = "new-flag-name"
break
}
return pflag.NormalizedName(name)
}
myFlagSet.SetNormalizeFunc(aliasNormalizeFunc)
```
## Deprecating a flag or its shorthand
It is possible to deprecate a flag, or just its shorthand. Deprecating a flag/shorthand hides it from help text and prints a usage message when the deprecated flag/shorthand is used.
**Example #1**: You want to deprecate a flag named "badflag" as well as inform the users what flag they should use instead.
```go
// deprecate a flag by specifying its name and a usage message
flags.MarkDeprecated("badflag", "please use --good-flag instead")
```
This hides "badflag" from help text, and prints `Flag --badflag has been deprecated, please use --good-flag instead` when "badflag" is used.
**Example #2**: You want to keep a flag name "noshorthandflag" but deprecate its shortname "n".
```go
// deprecate a flag shorthand by specifying its flag name and a usage message
flags.MarkShorthandDeprecated("noshorthandflag", "please use --noshorthandflag only")
```
This hides the shortname "n" from help text, and prints `Flag shorthand -n has been deprecated, please use --noshorthandflag only` when the shorthand "n" is used.
Note that usage message is essential here, and it should not be empty.
## Hidden flags
It is possible to mark a flag as hidden, meaning it will still function as normal, however will not show up in usage/help text.
**Example**: You have a flag named "secretFlag" that you need for internal use only and don't want it showing up in help text, or for its usage text to be available.
```go
// hide a flag by specifying its name
flags.MarkHidden("secretFlag")
```
## Supporting Go flags when using pflag
In order to support flags defined using Go's `flag` package, they must be added to the `pflag` flagset. This is usually necessary
to support flags defined by third-party dependencies (e.g. `golang/glog`).
**Example**: You want to add the Go flags to the `CommandLine` flagset
```go
import (
goflag "flag"
flag "github.com/spf13/pflag"
)
var ip *int = flag.Int("flagname", 1234, "help message for flagname")
func main() {
flag.CommandLine.AddGoFlagSet(goflag.CommandLine)
flag.Parse()
}
```
## More info
You can see the full reference documentation of the pflag package
[at godoc.org][3], or through go's standard documentation system by
running `godoc -http=:6060` and browsing to
[http://localhost:6060/pkg/github.com/ogier/pflag][2] after
installation.
[2]: http://localhost:6060/pkg/github.com/ogier/pflag
[3]: http://godoc.org/github.com/ogier/pflag
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// optional interface to indicate boolean flags that can be
// supplied without "=value" text
@@ -30,7 +27,7 @@ func (b *boolValue) Type() string {
return "bool"
}
func (b *boolValue) String() string { return fmt.Sprintf("%v", *b) }
func (b *boolValue) String() string { return strconv.FormatBool(bool(*b)) }
func (b *boolValue) IsBoolFlag() bool { return true }
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- count Value
type countValue int
@@ -28,7 +25,7 @@ func (i *countValue) Type() string {
return "count"
}
func (i *countValue) String() string { return fmt.Sprintf("%v", *i) }
func (i *countValue) String() string { return strconv.Itoa(int(*i)) }
func countConv(sval string) (interface{}, error) {
i, err := strconv.Atoi(sval)
+41 -28
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@@ -416,23 +416,39 @@ func Set(name, value string) error {
// otherwise, the default values of all defined flags in the set.
func (f *FlagSet) PrintDefaults() {
usages := f.FlagUsages()
fmt.Fprintf(f.out(), "%s", usages)
fmt.Fprint(f.out(), usages)
}
// isZeroValue guesses whether the string represents the zero
// value for a flag. It is not accurate but in practice works OK.
func isZeroValue(value string) bool {
switch value {
case "false":
return true
case "<nil>":
return true
case "":
return true
case "0":
return true
// defaultIsZeroValue returns true if the default value for this flag represents
// a zero value.
func (f *Flag) defaultIsZeroValue() bool {
switch f.Value.(type) {
case boolFlag:
return f.DefValue == "false"
case *durationValue:
// Beginning in Go 1.7, duration zero values are "0s"
return f.DefValue == "0" || f.DefValue == "0s"
case *intValue, *int8Value, *int32Value, *int64Value, *uintValue, *uint8Value, *uint16Value, *uint32Value, *uint64Value, *countValue, *float32Value, *float64Value:
return f.DefValue == "0"
case *stringValue:
return f.DefValue == ""
case *ipValue, *ipMaskValue, *ipNetValue:
return f.DefValue == "<nil>"
case *intSliceValue, *stringSliceValue, *stringArrayValue:
return f.DefValue == "[]"
default:
switch f.Value.String() {
case "false":
return true
case "<nil>":
return true
case "":
return true
case "0":
return true
}
return false
}
return false
}
// UnquoteUsage extracts a back-quoted name from the usage
@@ -455,22 +471,19 @@ func UnquoteUsage(flag *Flag) (name string, usage string) {
break // Only one back quote; use type name.
}
}
// No explicit name, so use type if we can find one.
name = "value"
switch flag.Value.(type) {
case boolFlag:
name = flag.Value.Type()
switch name {
case "bool":
name = ""
case *durationValue:
name = "duration"
case *float64Value:
case "float64":
name = "float"
case *intValue, *int64Value:
case "int64":
name = "int"
case *stringValue:
name = "string"
case *uintValue, *uint64Value:
case "uint64":
name = "uint"
}
return
}
@@ -501,7 +514,7 @@ func (f *FlagSet) FlagUsages() string {
if len(flag.NoOptDefVal) > 0 {
switch flag.Value.Type() {
case "string":
line += fmt.Sprintf("[=%q]", flag.NoOptDefVal)
line += fmt.Sprintf("[=\"%s\"]", flag.NoOptDefVal)
case "bool":
if flag.NoOptDefVal != "true" {
line += fmt.Sprintf("[=%s]", flag.NoOptDefVal)
@@ -519,9 +532,9 @@ func (f *FlagSet) FlagUsages() string {
}
line += usage
if !isZeroValue(flag.DefValue) {
if !flag.defaultIsZeroValue() {
if flag.Value.Type() == "string" {
line += fmt.Sprintf(" (default %q)", flag.DefValue)
line += fmt.Sprintf(" (default \"%s\")", flag.DefValue)
} else {
line += fmt.Sprintf(" (default %s)", flag.DefValue)
}
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- float32 Value
type float32Value float32
@@ -23,7 +20,7 @@ func (f *float32Value) Type() string {
return "float32"
}
func (f *float32Value) String() string { return fmt.Sprintf("%v", *f) }
func (f *float32Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 32) }
func float32Conv(sval string) (interface{}, error) {
v, err := strconv.ParseFloat(sval, 32)
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- float64 Value
type float64Value float64
@@ -23,7 +20,7 @@ func (f *float64Value) Type() string {
return "float64"
}
func (f *float64Value) String() string { return fmt.Sprintf("%v", *f) }
func (f *float64Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 64) }
func float64Conv(sval string) (interface{}, error) {
return strconv.ParseFloat(sval, 64)
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- int Value
type intValue int
@@ -23,7 +20,7 @@ func (i *intValue) Type() string {
return "int"
}
func (i *intValue) String() string { return fmt.Sprintf("%v", *i) }
func (i *intValue) String() string { return strconv.Itoa(int(*i)) }
func intConv(sval string) (interface{}, error) {
return strconv.Atoi(sval)
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- int32 Value
type int32Value int32
@@ -23,7 +20,7 @@ func (i *int32Value) Type() string {
return "int32"
}
func (i *int32Value) String() string { return fmt.Sprintf("%v", *i) }
func (i *int32Value) String() string { return strconv.FormatInt(int64(*i), 10) }
func int32Conv(sval string) (interface{}, error) {
v, err := strconv.ParseInt(sval, 0, 32)
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- int64 Value
type int64Value int64
@@ -23,7 +20,7 @@ func (i *int64Value) Type() string {
return "int64"
}
func (i *int64Value) String() string { return fmt.Sprintf("%v", *i) }
func (i *int64Value) String() string { return strconv.FormatInt(int64(*i), 10) }
func int64Conv(sval string) (interface{}, error) {
return strconv.ParseInt(sval, 0, 64)
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- int8 Value
type int8Value int8
@@ -23,7 +20,7 @@ func (i *int8Value) Type() string {
return "int8"
}
func (i *int8Value) String() string { return fmt.Sprintf("%v", *i) }
func (i *int8Value) String() string { return strconv.FormatInt(int64(*i), 10) }
func int8Conv(sval string) (interface{}, error) {
v, err := strconv.ParseInt(sval, 0, 8)
+1 -3
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@@ -1,7 +1,5 @@
package pflag
import "fmt"
// -- string Value
type stringValue string
@@ -18,7 +16,7 @@ func (s *stringValue) Type() string {
return "string"
}
func (s *stringValue) String() string { return fmt.Sprintf("%s", *s) }
func (s *stringValue) String() string { return string(*s) }
func stringConv(sval string) (interface{}, error) {
return sval, nil
+109
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@@ -0,0 +1,109 @@
package pflag
import (
"fmt"
)
var _ = fmt.Fprint
// -- stringArray Value
type stringArrayValue struct {
value *[]string
changed bool
}
func newStringArrayValue(val []string, p *[]string) *stringArrayValue {
ssv := new(stringArrayValue)
ssv.value = p
*ssv.value = val
return ssv
}
func (s *stringArrayValue) Set(val string) error {
if !s.changed {
*s.value = []string{val}
s.changed = true
} else {
*s.value = append(*s.value, val)
}
return nil
}
func (s *stringArrayValue) Type() string {
return "stringArray"
}
func (s *stringArrayValue) String() string {
str, _ := writeAsCSV(*s.value)
return "[" + str + "]"
}
func stringArrayConv(sval string) (interface{}, error) {
sval = sval[1 : len(sval)-1]
// An empty string would cause a array with one (empty) string
if len(sval) == 0 {
return []string{}, nil
}
return readAsCSV(sval)
}
// GetStringArray return the []string value of a flag with the given name
func (f *FlagSet) GetStringArray(name string) ([]string, error) {
val, err := f.getFlagType(name, "stringArray", stringArrayConv)
if err != nil {
return []string{}, err
}
return val.([]string), nil
}
// StringArrayVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a []string variable in which to store the values of the multiple flags.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringArrayVar(p *[]string, name string, value []string, usage string) {
f.VarP(newStringArrayValue(value, p), name, "", usage)
}
// StringArrayVarP is like StringArrayVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringArrayVarP(p *[]string, name, shorthand string, value []string, usage string) {
f.VarP(newStringArrayValue(value, p), name, shorthand, usage)
}
// StringArrayVar defines a string flag with specified name, default value, and usage string.
// The argument p points to a []string variable in which to store the value of the flag.
// The value of each argument will not try to be separated by comma
func StringArrayVar(p *[]string, name string, value []string, usage string) {
CommandLine.VarP(newStringArrayValue(value, p), name, "", usage)
}
// StringArrayVarP is like StringArrayVar, but accepts a shorthand letter that can be used after a single dash.
func StringArrayVarP(p *[]string, name, shorthand string, value []string, usage string) {
CommandLine.VarP(newStringArrayValue(value, p), name, shorthand, usage)
}
// StringArray defines a string flag with specified name, default value, and usage string.
// The return value is the address of a []string variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringArray(name string, value []string, usage string) *[]string {
p := []string{}
f.StringArrayVarP(&p, name, "", value, usage)
return &p
}
// StringArrayP is like StringArray, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringArrayP(name, shorthand string, value []string, usage string) *[]string {
p := []string{}
f.StringArrayVarP(&p, name, shorthand, value, usage)
return &p
}
// StringArray defines a string flag with specified name, default value, and usage string.
// The return value is the address of a []string variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func StringArray(name string, value []string, usage string) *[]string {
return CommandLine.StringArrayP(name, "", value, usage)
}
// StringArrayP is like StringArray, but accepts a shorthand letter that can be used after a single dash.
func StringArrayP(name, shorthand string, value []string, usage string) *[]string {
return CommandLine.StringArrayP(name, shorthand, value, usage)
}
+27 -6
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@@ -1,6 +1,7 @@
package pflag
import (
"bytes"
"encoding/csv"
"fmt"
"strings"
@@ -21,10 +22,28 @@ func newStringSliceValue(val []string, p *[]string) *stringSliceValue {
return ssv
}
func (s *stringSliceValue) Set(val string) error {
func readAsCSV(val string) ([]string, error) {
if val == "" {
return []string{}, nil
}
stringReader := strings.NewReader(val)
csvReader := csv.NewReader(stringReader)
v, err := csvReader.Read()
return csvReader.Read()
}
func writeAsCSV(vals []string) (string, error) {
b := &bytes.Buffer{}
w := csv.NewWriter(b)
err := w.Write(vals)
if err != nil {
return "", err
}
w.Flush()
return strings.TrimSuffix(b.String(), fmt.Sprintln()), nil
}
func (s *stringSliceValue) Set(val string) error {
v, err := readAsCSV(val)
if err != nil {
return err
}
@@ -41,16 +60,18 @@ func (s *stringSliceValue) Type() string {
return "stringSlice"
}
func (s *stringSliceValue) String() string { return "[" + strings.Join(*s.value, ",") + "]" }
func (s *stringSliceValue) String() string {
str, _ := writeAsCSV(*s.value)
return "[" + str + "]"
}
func stringSliceConv(sval string) (interface{}, error) {
sval = strings.Trim(sval, "[]")
sval = sval[1 : len(sval)-1]
// An empty string would cause a slice with one (empty) string
if len(sval) == 0 {
return []string{}, nil
}
v := strings.Split(sval, ",")
return v, nil
return readAsCSV(sval)
}
// GetStringSlice return the []string value of a flag with the given name
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- uint Value
type uintValue uint
@@ -23,7 +20,7 @@ func (i *uintValue) Type() string {
return "uint"
}
func (i *uintValue) String() string { return fmt.Sprintf("%v", *i) }
func (i *uintValue) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uintConv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 0)
+4 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- uint16 value
type uint16Value uint16
@@ -12,7 +9,7 @@ func newUint16Value(val uint16, p *uint16) *uint16Value {
*p = val
return (*uint16Value)(p)
}
func (i *uint16Value) String() string { return fmt.Sprintf("%d", *i) }
func (i *uint16Value) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 16)
*i = uint16Value(v)
@@ -23,6 +20,8 @@ func (i *uint16Value) Type() string {
return "uint16"
}
func (i *uint16Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uint16Conv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 16)
if err != nil {
+5 -6
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@@ -1,18 +1,15 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- uint16 value
// -- uint32 value
type uint32Value uint32
func newUint32Value(val uint32, p *uint32) *uint32Value {
*p = val
return (*uint32Value)(p)
}
func (i *uint32Value) String() string { return fmt.Sprintf("%d", *i) }
func (i *uint32Value) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 32)
*i = uint32Value(v)
@@ -23,6 +20,8 @@ func (i *uint32Value) Type() string {
return "uint32"
}
func (i *uint32Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uint32Conv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 32)
if err != nil {
+2 -5
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@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- uint64 Value
type uint64Value uint64
@@ -23,7 +20,7 @@ func (i *uint64Value) Type() string {
return "uint64"
}
func (i *uint64Value) String() string { return fmt.Sprintf("%v", *i) }
func (i *uint64Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uint64Conv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 64)
+2 -5
View File
@@ -1,9 +1,6 @@
package pflag
import (
"fmt"
"strconv"
)
import "strconv"
// -- uint8 Value
type uint8Value uint8
@@ -23,7 +20,7 @@ func (i *uint8Value) Type() string {
return "uint8"
}
func (i *uint8Value) String() string { return fmt.Sprintf("%v", *i) }
func (i *uint8Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
func uint8Conv(sval string) (interface{}, error) {
v, err := strconv.ParseUint(sval, 0, 8)