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add -V/--version flag to go implementations (#295)

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Uses goreleaser to pass ldflags.

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>
This commit is contained in:
Ahmet Alp Balkan 2021-04-09 09:43:48 -07:00 committed by GitHub
parent 3504e66edb
commit 34e9024835
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 51 additions and 3 deletions
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3
cmd/kubectx/flags.go
View File

@ -52,6 +52,9 @@ func parseArgs(argv []string) Op {
if v == "--help" || v == "-h" {
return HelpOp{}
}
if v == "--version" || v == "-V" {
return VersionOp{}
}
if v == "--current" || v == "-c" {
return CurrentOp{}
}

5
cmd/kubectx/help.go
View File

@ -39,11 +39,12 @@ func printUsage(out io.Writer) error {
%PROG% -c, --current : show the current context name
%PROG% <NEW_NAME>=<NAME> : rename context <NAME> to <NEW_NAME>
%PROG% <NEW_NAME>=. : rename current-context to <NEW_NAME>
%PROG% -u, --unset : unset the current context
%PROG% -u, --unset : unset the current context
%PROG% -d <NAME> [<NAME...>] : delete context <NAME> ('.' for current-context)
%SPAC% (this command won't delete the user/cluster entry
%SPAC% referenced by the context entry)
%PROG% -h,--help : show this message`
%PROG% -h,--help : show this message
%PROG% -V,--version : show version`
help = strings.ReplaceAll(help, "%PROG%", selfName())
help = strings.ReplaceAll(help, "%SPAC%", strings.Repeat(" ", len(selfName())))

20
cmd/kubectx/version.go Normal file
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@ -0,0 +1,20 @@
package main
import (
"fmt"
"io"
"github.com/pkg/errors"
)
var (
version = "v0.0.0+unknown" // populated by goreleaser
)
// VersionOps describes printing version string.
type VersionOp struct{}
func (_ VersionOp) Run(stdout, _ io.Writer) error {
_, err := fmt.Fprintf(stdout, "%s\n", version)
return errors.Wrap(err, "write error")
}

3
cmd/kubens/flags.go
View File

@ -45,6 +45,9 @@ func parseArgs(argv []string) Op {
if v == "--help" || v == "-h" {
return HelpOp{}
}
if v == "--version" || v == "-V" {
return VersionOp{}
}
if v == "--current" || v == "-c" {
return CurrentOp{}
}

3
cmd/kubens/help.go
View File

@ -38,7 +38,8 @@ func printUsage(out io.Writer) error {
%PROG% - : switch to the previous namespace in this context
%PROG% -c, --current : show the current namespace
%PROG% -h,--help : show this message
`
%PROG% -V,--version : show version`
// TODO this replace logic is duplicated between this and kubectx
help = strings.ReplaceAll(help, "%PROG%", selfName())

20
cmd/kubens/version.go Normal file
View File

@ -0,0 +1,20 @@
package main
import (
"fmt"
"io"
"github.com/pkg/errors"
)
var (
version = "v0.0.0+unknown" // populated by goreleaser
)
// VersionOps describes printing version string.
type VersionOp struct{}
func (_ VersionOp) Run(stdout, _ io.Writer) error {
_, err := fmt.Fprintf(stdout, "%s\n", version)
return errors.Wrap(err, "write error")
}