示例#1
0
文件: history.py 项目: bariders/xonsh
 def run(self):
     while self.wait_for_shell:
         time.sleep(0.01)
     env = builtins.__xonsh_env__
     if self.size is None:
         hsize, units = env.get("XONSH_HISTORY_SIZE")
     else:
         hsize, units = to_history_tuple(self.size)
     files = self.unlocked_files()
     # flag files for removal
     if units == "commands":
         n = 0
         ncmds = 0
         rmfiles = []
         for ts, fcmds, f in files[::-1]:
             if fcmds == 0:
                 # we need to make sure that 'empty' history files don't hang around
                 fmfiles.append((ts, fcmds, f))
             if ncmds + fcmds > hsize:
                 break
             ncmds += fcmds
             n += 1
         rmfiles += files[:-n]
     elif units == "files":
         rmfiles = files[:-hsize] if len(files) > hsize else []
     elif units == "s":
         now = time.time()
         rmfiles = []
         for ts, _, f in files:
             if (now - ts) < hsize:
                 break
             rmfiles.append((None, None, f))
     elif units == "b":
         n = 0
         nbytes = 0
         for _, _, f in files[::-1]:
             fsize = os.stat(f).st_size
             if nbytes + fsize > hsize:
                 break
             nbytes += fsize
             n += 1
         rmfiles = files[:-n]
     else:
         raise ValueError("Units of {0!r} not understood".format(unit))
     # finally, clean up files
     for _, _, f in rmfiles:
         try:
             os.remove(f)
         except OSError:
             pass
示例#2
0
 def run(self):
     while self.wait_for_shell:
         time.sleep(0.01)
     env = builtins.__xonsh_env__
     if self.size is None:
         hsize, units = env.get('XONSH_HISTORY_SIZE')
     else:
         hsize, units = to_history_tuple(self.size)
     files = self.unlocked_files()
     # flag files for removal
     if units == 'commands':
         n = 0
         ncmds = 0
         rmfiles = []
         for ts, fcmds, f in files[::-1]:
             if fcmds == 0:
                 # we need to make sure that 'empty' history files don't hang around
                 fmfiles.append((ts, fcmds, f))
             if ncmds + fcmds > hsize:
                 break
             ncmds += fcmds
             n += 1
         rmfiles += files[:-n]
     elif units == 'files':
         rmfiles = files[:-hsize] if len(files) > hsize else []
     elif units == 's':
         now = time.time()
         rmfiles = []
         for ts, _, f in files:
             if (now - ts) < hsize:
                 break
             rmfiles.append((None, None, f))
     elif units == 'b':
         n = 0
         nbytes = 0
         for _, _, f in files[::-1]:
             fsize = os.stat(f).st_size
             if nbytes + fsize > hsize:
                 break
             nbytes += fsize
             n += 1
         rmfiles = files[:-n]
     else:
         raise ValueError('Units of {0!r} not understood'.format(unit))
     # finally, clean up files
     for _, _, f in rmfiles:
         try:
             os.remove(f)
         except OSError:
             pass
示例#3
0
文件: sqlite.py 项目: dragon788/xonsh
 def run(self):
     while self.wait_for_shell:
         time.sleep(0.01)
     if self.size is not None:
         hsize, units = xt.to_history_tuple(self.size)
     else:
         envs = builtins.__xonsh_env__
         hsize, units = envs.get('XONSH_HISTORY_SIZE')
     if units != 'commands':
         print('sqlite backed history gc currently only supports '
               '"commands" as units', file=sys.stderr)
         return
     if hsize < 0:
         return
     xh_sqlite_delete_items(hsize, filename=self.filename)
示例#4
0
文件: sqlite.py 项目: laerus/xonsh
 def run(self):
     while self.wait_for_shell:
         time.sleep(0.01)
     if self.size is not None:
         hsize, units = xt.to_history_tuple(self.size)
     else:
         envs = builtins.__xonsh_env__
         hsize, units = envs.get('XONSH_HISTORY_SIZE')
     if units != 'commands':
         print('sqlite backed history gc currently only supports '
               '"commands" as units', file=sys.stderr)
         return
     if hsize < 0:
         return
     xh_sqlite_delete_items(hsize, filename=self.filename)
示例#5
0
    def run(self):
        while self.wait_for_shell:
            time.sleep(0.01)
        env = builtins.__xonsh_env__  # pylint: disable=no-member
        if self.size is None:
            hsize, units = env.get('XONSH_HISTORY_SIZE')
        else:
            hsize, units = to_history_tuple(self.size)
        files = self.files(only_unlocked=True)
        rmfiles_fn = self.gc_units_to_rmfiles.get(units)
        if rmfiles_fn is None:
            raise ValueError('Units type {0!r} not understood'.format(units))

        for _, _, f in rmfiles_fn(hsize, files):
            try:
                os.remove(f)
            except OSError:
                pass
示例#6
0
    def run(self):
        while self.wait_for_shell:
            time.sleep(0.01)
        env = builtins.__xonsh__.env  # pylint: disable=no-member
        if self.size is None:
            hsize, units = env.get("XONSH_HISTORY_SIZE")
        else:
            hsize, units = xt.to_history_tuple(self.size)
        files = self.files(only_unlocked=True)
        rmfiles_fn = self.gc_units_to_rmfiles.get(units)
        if rmfiles_fn is None:
            raise ValueError("Units type {0!r} not understood".format(units))

        for _, _, f in rmfiles_fn(hsize, files):
            try:
                os.remove(f)
            except OSError:
                pass
示例#7
0
 def run(self):
     while self.wait_for_shell:
         time.sleep(0.01)
     if self.size is not None:
         hsize, units = xt.to_history_tuple(self.size)
     else:
         envs = XSH.env
         hsize, units = envs.get("XONSH_HISTORY_SIZE")
     if units != "commands":
         print(
             "sqlite backed history gc currently only supports "
             '"commands" as units',
             file=sys.stderr,
         )
         return
     if hsize < 0:
         return
     xh_sqlite_delete_items(hsize, filename=self.filename)
示例#8
0
    def run(self):
        while self.wait_for_shell:
            time.sleep(0.01)
        env = builtins.__xonsh__.env  # pylint: disable=no-member
        xonsh_debug = env.get("XONSH_DEBUG", 0)
        if self.size is None:
            hsize, units = env.get("XONSH_HISTORY_SIZE")
        else:
            hsize, units = xt.to_history_tuple(self.size)
        files = self.files(only_unlocked=True)
        rmfiles_fn = self.gc_units_to_rmfiles.get(units)
        if rmfiles_fn is None:
            raise ValueError("Units type {0!r} not understood".format(units))

        size_over, rm_files = rmfiles_fn(hsize, files)
        hist = getattr(builtins.__xonsh__, "history", None)
        if hist is not None:  # remember last gc pass history size
            hist.hist_size = size_over + hsize
            hist.hist_units = units

        if self.force_gc or size_over < hsize:
            i = 0
            for _, _, f, _ in rm_files:
                try:
                    os.remove(f)
                    if xonsh_debug:
                        print(
                            f"... Deleted {i:7d} of {len(rm_files):7d} history files.\r",
                            end="",
                        )
                    pass
                except OSError:
                    pass
                i += 1
        else:
            print(
                f"Warning: History garbage collection would discard more history ({size_over} {units}) than it would keep ({hsize}).\n"
                "Not removing any history for now. Either increase your limit ($XONSH_HISTORY_SIZE), or run `history gc --force`."
            )