decentral1se
1723025fbf
We were running behind and there were quite some deprecations to update. This was mostly in the upstream copy/pasta package but seems quite minimal.
58 lines
1.5 KiB
Go
58 lines
1.5 KiB
Go
package client
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import (
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"io"
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"os"
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"os/exec"
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)
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// Program is an interface to execute external programs.
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type Program interface {
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Output() ([]byte, error)
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Input(in io.Reader)
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}
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// ProgramFunc is a type of function that initializes programs based on arguments.
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type ProgramFunc func(args ...string) Program
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// NewShellProgramFunc creates a [ProgramFunc] to run command in a [Shell].
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func NewShellProgramFunc(command string) ProgramFunc {
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return func(args ...string) Program {
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return createProgramCmdRedirectErr(command, args, nil)
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}
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}
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// NewShellProgramFuncWithEnv creates a [ProgramFunc] tu run command
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// in a [Shell] with the given environment variables.
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func NewShellProgramFuncWithEnv(command string, env *map[string]string) ProgramFunc {
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return func(args ...string) Program {
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return createProgramCmdRedirectErr(command, args, env)
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}
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}
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func createProgramCmdRedirectErr(command string, args []string, env *map[string]string) *Shell {
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ec := exec.Command(command, args...)
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if env != nil {
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for k, v := range *env {
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ec.Env = append(ec.Environ(), k+"="+v)
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}
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}
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ec.Stderr = os.Stderr
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return &Shell{cmd: ec}
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}
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// Shell invokes shell commands to talk with a remote credentials-helper.
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type Shell struct {
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cmd *exec.Cmd
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}
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// Output returns responses from the remote credentials-helper.
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func (s *Shell) Output() ([]byte, error) {
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return s.cmd.Output()
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}
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// Input sets the input to send to a remote credentials-helper.
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func (s *Shell) Input(in io.Reader) {
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s.cmd.Stdin = in
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}
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