comparison mercurial/posix.py @ 16726:7002bb17cc5e stable

posix: workaround lack of TIOCGWINSZ on Irix (issue3449)

On an Irix 6.5.24 system, TIOCGWINSZ is not available. This means that
any usage of the "hg" tool that looks up the terminal size (e.g. "hg
help") will fail with an AttributeError.

A simple work-around is just to wrap this block in mercurial/posix.py
with a try/except so that it ends up using the default 80 characters
width.

16722:7bf48bc7de23

                    fd = dev.fileno()
                except AttributeError:
                    continue
                if not os.isatty(fd):
                    continue
                arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8)
                width = array.array('h', arri)[1]
                if width > 0:
                    return width
            except ValueError:
                pass
            except IOError, e:
                if e[0] == errno.EINVAL:
                    pass

16726:7002bb17cc5e

                    fd = dev.fileno()
                except AttributeError:
                    continue
                if not os.isatty(fd):
                    continue
                try:
                    arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8)
                    width = array.array('h', arri)[1]
                    if width > 0:
                        return width
                except AttributeError:
                    pass
            except ValueError:
                pass
            except IOError, e:
                if e[0] == errno.EINVAL:
                    pass