executil

type CommandError struct {
	Command string
	Dir     string
	Output  []byte
	Err     error
}

type Executor interface {
	// Run executes a command and returns its combined output.
	Run(ctx context.Context, cmd string, args ...string) ([]byte, error)
	// RunDir executes a command in a specific directory.
	RunDir(ctx context.Context, dir, cmd string, args ...string) ([]byte, error)
	// RunStream executes a command and streams stdout/stderr to the provided writers.
	RunStream(ctx context.Context, stdout, stderr io.Writer, cmd string, args ...string) error
	// RunDirStream executes a command in a specific directory and streams output.
	RunDirStream(ctx context.Context, dir string, stdout, stderr io.Writer, cmd string, args ...string) error
}

type HeadWriter struct {
	Max int
	// contains filtered or unexported fields
}

type RealExecutor struct {
	// Env, when set, is the environment each command runs with.
	Env func(ctx context.Context) []string
	// LookPath, when set, resolves the command name before it runs. os/exec
	// searches this process's PATH and ignores Cmd.Env, so a program that only
	// the Env PATH holds needs this to start. A name LookPath cannot resolve
	// runs unchanged, so the caller sees the OS's own error for it.
	LookPath func(ctx context.Context, file string) (string, error)
	// StreamDiagnosticBytes, when positive, appends up to that many leading
	// bytes of a failed streamed command's stderr to its error, for callers
	// that stream stderr somewhere nobody reads.
	StreamDiagnosticBytes int
}

type RecordedCommand struct {
	Dir  string
	Cmd  string
	Args []string
}

type RecordingExecutor struct {
	Commands []RecordedCommand

	// Outputs maps command names to their output.
	// Key is the command name (e.g., "git").
	Outputs map[string][]byte

	// Errors maps command names to their error.
	Errors map[string]error
	// contains filtered or unexported fields
}