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|
// +build !windows
package gui
import (
"os/exec"
"github.com/creack/pty"
)
func (gui *Gui) onResize() error {
if gui.State.Ptmx == nil {
return nil
}
mainView := gui.getMainView()
width, height := mainView.Size()
if err := pty.Setsize(gui.State.Ptmx, &pty.Winsize{Cols: uint16(width), Rows: uint16(height)}); err != nil {
return err
}
// TODO: handle resizing properly
return nil
}
// Some commands need to output for a terminal to active certain behaviour.
// For example, git won't invoke the GIT_PAGER env var unless it thinks it's
// talking to a terminal. We typically write cmd outputs straight to a view,
// which is just an io.Reader. the pty package lets us wrap a command in a
// pseudo-terminal meaning we'll get the behaviour we want from the underlying
// command.
func (gui *Gui) newPtyTask(viewName string, cmd *exec.Cmd, prefix string) error {
width, _ := gui.getMainView().Size()
pager := gui.GitCommand.GetPager(width)
if pager == "" {
// if we're not using a custom pager we don't need to use a pty
return gui.newCmdTask(viewName, cmd, prefix)
}
cmd.Env = append(cmd.Env, "GIT_PAGER="+pager)
view, err := gui.g.View(viewName)
if err != nil {
return nil // swallowing for now
}
_, height := view.Size()
_, oy := view.Origin()
manager := gui.getManager(view)
ptmx, err := pty.Start(cmd)
if err != nil {
return err
}
gui.State.Ptmx = ptmx
onClose := func() {
ptmx.Close()
gui.State.Ptmx = nil
}
if err := gui.onResize(); err != nil {
return err
}
if err := manager.NewTask(manager.NewCmdTask(ptmx, cmd, prefix, height+oy+10, onClose)); err != nil {
return err
}
return nil
}
|
