comparison mercurial/scmutil.py @ 41419:b5169e79c31c

dispatch: add inline comment about possible IOError subtypes

It's hard to tell which "if" would handle which exception.

41418:26761665bdfe

        if m in "mpatch bdiff".split():
            ui.error(_("(did you forget to compile extensions?)\n"))
        elif m in "zlib".split():
            ui.error(_("(is your Python install correct?)\n"))
    except IOError as inst:
        if util.safehasattr(inst, "code"):
            ui.error(_("abort: %s\n") % stringutil.forcebytestr(inst))
        elif util.safehasattr(inst, "reason"):
            try: # usually it is in the form (errno, strerror)
                reason = inst.reason.args[1]
            except (AttributeError, IndexError):
                # it might be anything, for example a string
                reason = inst.reason

                reason = encoding.unitolocal(reason)
            ui.error(_("abort: error: %s\n") % reason)
        elif (util.safehasattr(inst, "args")
              and inst.args and inst.args[0] == errno.EPIPE):
            pass
        elif getattr(inst, "strerror", None):
            if getattr(inst, "filename", None):
                ui.error(_("abort: %s: %s\n") % (
                    encoding.strtolocal(inst.strerror),
                    stringutil.forcebytestr(inst.filename)))
            else:
                ui.error(_("abort: %s\n") % encoding.strtolocal(inst.strerror))
        else:
            raise
    except OSError as inst:
        if getattr(inst, "filename", None) is not None:
            ui.error(_("abort: %s: '%s'\n") % (
                encoding.strtolocal(inst.strerror),

41419:b5169e79c31c

        if m in "mpatch bdiff".split():
            ui.error(_("(did you forget to compile extensions?)\n"))
        elif m in "zlib".split():
            ui.error(_("(is your Python install correct?)\n"))
    except IOError as inst:
        if util.safehasattr(inst, "code"): # HTTPError
            ui.error(_("abort: %s\n") % stringutil.forcebytestr(inst))
        elif util.safehasattr(inst, "reason"): # URLError or SSLError
            try: # usually it is in the form (errno, strerror)
                reason = inst.reason.args[1]
            except (AttributeError, IndexError):
                # it might be anything, for example a string
                reason = inst.reason

                reason = encoding.unitolocal(reason)
            ui.error(_("abort: error: %s\n") % reason)
        elif (util.safehasattr(inst, "args")
              and inst.args and inst.args[0] == errno.EPIPE):
            pass
        elif getattr(inst, "strerror", None): # common IOError
            if getattr(inst, "filename", None):
                ui.error(_("abort: %s: %s\n") % (
                    encoding.strtolocal(inst.strerror),
                    stringutil.forcebytestr(inst.filename)))
            else:
                ui.error(_("abort: %s\n") % encoding.strtolocal(inst.strerror))
        else: # suspicious IOError
            raise
    except OSError as inst:
        if getattr(inst, "filename", None) is not None:
            ui.error(_("abort: %s: '%s'\n") % (
                encoding.strtolocal(inst.strerror),