woodpecker-helm3/internal/run/cmd.go

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package run
import (
"io"
"os"
"os/exec"
"syscall"
)
const helmBin = "/usr/bin/helm"
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// The cmd interface provides a generic form of exec.Cmd so that it can be mocked out in tests.
type cmd interface {
// methods that exist on exec.Cmd
Output() ([]byte, error)
Run() error
CombinedOutput() ([]byte, error)
Start() error
StderrPipe() (io.ReadCloser, error)
StdinPipe() (io.WriteCloser, error)
StdoutPipe() (io.ReadCloser, error)
String() string
Wait() error
// setters for struct fields set by callers of exec.Cmd
Path(string)
Args([]string)
Env([]string)
Dir(string)
Stdin(io.Reader)
Stdout(io.Writer)
Stderr(io.Writer)
ExtraFiles([]*os.File)
SysProcAttr(*syscall.SysProcAttr)
// getters for struct fields generated by exec.Cmd
Process() *os.Process
ProcessState() *os.ProcessState
}
// execCmd wraps exec.Cmd along with setters for exec.Cmd's struct fields, implementing the cmd interface.
type execCmd struct {
*exec.Cmd
}
var command = func(path string, args ...string) cmd {
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return &execCmd{
Cmd: exec.Command(path, args...),
}
}
func (c *execCmd) Path(p string) { c.Cmd.Path = p }
func (c *execCmd) Args(a []string) { c.Cmd.Args = a }
func (c *execCmd) Env(e []string) { c.Cmd.Env = e }
func (c *execCmd) Dir(d string) { c.Cmd.Dir = d }
func (c *execCmd) Stdin(s io.Reader) { c.Cmd.Stdin = s }
func (c *execCmd) Stdout(s io.Writer) { c.Cmd.Stdout = s }
func (c *execCmd) Stderr(s io.Writer) { c.Cmd.Stderr = s }
func (c *execCmd) ExtraFiles(f []*os.File) { c.Cmd.ExtraFiles = f }
func (c *execCmd) SysProcAttr(s *syscall.SysProcAttr) { c.Cmd.SysProcAttr = s }
func (c *execCmd) Process() *os.Process { return c.Cmd.Process }
func (c *execCmd) ProcessState() *os.ProcessState { return c.Cmd.ProcessState }