Add `go mod` support (#2503)

* Remove vendor and go-dep

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Add go.mod

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Update Makefile and .travis.yml

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

1 files changed, 0 insertions, 98 deletions

diff --git a/vendor/github.com/spf13/pflag/ipnet.go b/vendor/github.com/spf13/pflag/ipnet.go
deleted file mode 100644
index e2c1b8bcd..000000000
--- a/vendor/github.com/spf13/pflag/ipnet.go
+++ /dev/null
@@ -1,98 +0,0 @@
-package pflag
-
-import (
-	"fmt"
-	"net"
-	"strings"
-)
-
-// IPNet adapts net.IPNet for use as a flag.
-type ipNetValue net.IPNet
-
-func (ipnet ipNetValue) String() string {
-	n := net.IPNet(ipnet)
-	return n.String()
-}
-
-func (ipnet *ipNetValue) Set(value string) error {
-	_, n, err := net.ParseCIDR(strings.TrimSpace(value))
-	if err != nil {
-		return err
-	}
-	*ipnet = ipNetValue(*n)
-	return nil
-}
-
-func (*ipNetValue) Type() string {
-	return "ipNet"
-}
-
-func newIPNetValue(val net.IPNet, p *net.IPNet) *ipNetValue {
-	*p = val
-	return (*ipNetValue)(p)
-}
-
-func ipNetConv(sval string) (interface{}, error) {
-	_, n, err := net.ParseCIDR(strings.TrimSpace(sval))
-	if err == nil {
-		return *n, nil
-	}
-	return nil, fmt.Errorf("invalid string being converted to IPNet: %s", sval)
-}
-
-// GetIPNet return the net.IPNet value of a flag with the given name
-func (f *FlagSet) GetIPNet(name string) (net.IPNet, error) {
-	val, err := f.getFlagType(name, "ipNet", ipNetConv)
-	if err != nil {
-		return net.IPNet{}, err
-	}
-	return val.(net.IPNet), nil
-}
-
-// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
-// The argument p points to an net.IPNet variable in which to store the value of the flag.
-func (f *FlagSet) IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
-	f.VarP(newIPNetValue(value, p), name, "", usage)
-}
-
-// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
-func (f *FlagSet) IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
-	f.VarP(newIPNetValue(value, p), name, shorthand, usage)
-}
-
-// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
-// The argument p points to an net.IPNet variable in which to store the value of the flag.
-func IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
-	CommandLine.VarP(newIPNetValue(value, p), name, "", usage)
-}
-
-// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
-func IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
-	CommandLine.VarP(newIPNetValue(value, p), name, shorthand, usage)
-}
-
-// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
-// The return value is the address of an net.IPNet variable that stores the value of the flag.
-func (f *FlagSet) IPNet(name string, value net.IPNet, usage string) *net.IPNet {
-	p := new(net.IPNet)
-	f.IPNetVarP(p, name, "", value, usage)
-	return p
-}
-
-// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
-func (f *FlagSet) IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
-	p := new(net.IPNet)
-	f.IPNetVarP(p, name, shorthand, value, usage)
-	return p
-}
-
-// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
-// The return value is the address of an net.IPNet variable that stores the value of the flag.
-func IPNet(name string, value net.IPNet, usage string) *net.IPNet {
-	return CommandLine.IPNetP(name, "", value, usage)
-}
-
-// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
-func IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
-	return CommandLine.IPNetP(name, shorthand, value, usage)
-}