Remove all direct shell access from logger.

History management was moved to the history manager.

IPython/core/logger.py

@@ -1,266 +1,215 b''
-# -*- coding: utf-8 -*-
-"""
-Logger class for IPython's logging facilities.
+"""Logger class for IPython's logging facilities.
 """
 
 #*****************************************************************************
 #       Copyright (C) 2001 Janko Hauser <[e-mail]> and
 #       Copyright (C) 2001-2006 Fernando Perez <[e-mail]>
 #
 #  Distributed under the terms of the BSD License.  The full license is in
 #  the file COPYING, distributed as part of this software.
 #*****************************************************************************
 
 #****************************************************************************
 # Modules and globals
 
 # Python standard modules
 import glob
 import os
 import time
 
 #****************************************************************************
 # FIXME: This class isn't a mixin anymore, but it still needs attributes from
 # ipython and does input cache management.  Finish cleanup later...
 
 class Logger(object):
     """A Logfile class with different policies for file creation"""
 
-    def __init__(self,shell,logfname='Logger.log',loghead='',logmode='over'):
-
-        self._i00,self._i,self._ii,self._iii = '','','',''
+    def __init__(self, home_dir, logfname='Logger.log', loghead='',
+                 logmode='over'):
 
         # this is the full ipython instance, we need some attributes from it
         # which won't exist until later. What a mess, clean up later...
-        self.shell = shell
+        self.home_dir = home_dir
 
         self.logfname = logfname
         self.loghead = loghead
         self.logmode = logmode
         self.logfile = None
 
         # Whether to log raw or processed input
         self.log_raw_input = False
 
         # whether to also log output
         self.log_output = False
 
         # whether to put timestamps before each log entry
         self.timestamp = False
 
         # activity control flags
         self.log_active = False
 
     # logmode is a validated property
     def _set_mode(self,mode):
         if mode not in ['append','backup','global','over','rotate']:
             raise ValueError,'invalid log mode %s given' % mode
         self._logmode = mode
 
     def _get_mode(self):
         return self._logmode
 
     logmode = property(_get_mode,_set_mode)
     
     def logstart(self,logfname=None,loghead=None,logmode=None,
                  log_output=False,timestamp=False,log_raw_input=False):
         """Generate a new log-file with a default header.
 
         Raises RuntimeError if the log has already been started"""
 
         if self.logfile is not None:
             raise RuntimeError('Log file is already active: %s' %
                                self.logfname)
         
         self.log_active = True
 
         # The parameters can override constructor defaults
         if logfname is not None: self.logfname = logfname
         if loghead is not None: self.loghead = loghead
         if logmode is not None: self.logmode = logmode
 
         # Parameters not part of the constructor
         self.timestamp = timestamp
         self.log_output = log_output
         self.log_raw_input = log_raw_input
         
         # init depending on the log mode requested
         isfile = os.path.isfile
         logmode = self.logmode
 
         if logmode == 'append':
             self.logfile = open(self.logfname,'a')
 
         elif logmode == 'backup':
             if isfile(self.logfname):
                 backup_logname = self.logfname+'~'
                 # Manually remove any old backup, since os.rename may fail
                 # under Windows.
                 if isfile(backup_logname):
                     os.remove(backup_logname)
                 os.rename(self.logfname,backup_logname)
             self.logfile = open(self.logfname,'w')
 
         elif logmode == 'global':
-            self.logfname = os.path.join(self.shell.home_dir,self.logfname)
+            self.logfname = os.path.join(self.home_dir,self.logfname)
             self.logfile = open(self.logfname, 'a')
 
         elif logmode == 'over':
             if isfile(self.logfname):
                 os.remove(self.logfname) 
             self.logfile = open(self.logfname,'w')
 
         elif logmode == 'rotate':
             if isfile(self.logfname):
                 if isfile(self.logfname+'.001~'): 
                     old = glob.glob(self.logfname+'.*~')
                     old.sort()
                     old.reverse()
                     for f in old:
                         root, ext = os.path.splitext(f)
                         num = int(ext[1:-1])+1
                         os.rename(f, root+'.'+`num`.zfill(3)+'~')
                 os.rename(self.logfname, self.logfname+'.001~')
             self.logfile = open(self.logfname,'w')
             
         if logmode != 'append':
             self.logfile.write(self.loghead)
 
         self.logfile.flush()
 
     def switch_log(self,val):
         """Switch logging on/off. val should be ONLY a boolean."""
 
         if val not in [False,True,0,1]:
             raise ValueError, \
                   'Call switch_log ONLY with a boolean argument, not with:',val
         
         label = {0:'OFF',1:'ON',False:'OFF',True:'ON'}
 
         if self.logfile is None:
             print """
 Logging hasn't been started yet (use logstart for that).
 
 %logon/%logoff are for temporarily starting and stopping logging for a logfile
 which already exists. But you must first start the logging process with
 %logstart (optionally giving a logfile name)."""
             
         else:
             if self.log_active == val:
                 print 'Logging is already',label[val]
             else:
                 print 'Switching logging',label[val]
                 self.log_active = not self.log_active
                 self.log_active_out = self.log_active
 
     def logstate(self):
         """Print a status message about the logger."""
         if self.logfile is None:
             print 'Logging has not been activated.'
         else:
             state = self.log_active and 'active' or 'temporarily suspended'
             print 'Filename       :',self.logfname
             print 'Mode           :',self.logmode
             print 'Output logging :',self.log_output
             print 'Raw input log  :',self.log_raw_input
             print 'Timestamping   :',self.timestamp
             print 'State          :',state
 
-    def log(self,line_ori,line_mod,continuation=None):
-        """Write the line to a log and create input cache variables _i*.
+    def log(self, line_mod, line_ori):
+        """Write the sources to a log.
 
         Inputs:
 
-        - line_ori: unmodified input line from the user.  This is not
-        necessarily valid Python.
-
         - line_mod: possibly modified input, such as the transformations made
         by input prefilters or input handlers of various kinds.  This should
         always be valid Python.
 
-        - continuation: if True, indicates this is part of multi-line input."""
-
-        # update the auto _i tables
-        #print '***logging line',line_mod # dbg
-        #print '***cache_count', self.shell.displayhook.prompt_count # dbg
-        try:
-            input_hist = self.shell.user_ns['_ih']
-        except:
-            #print 'userns:',self.shell.user_ns.keys()  # dbg
-            return
-        
-        out_cache = self.shell.displayhook
-
-        # add blank lines if the input cache fell out of sync.
-        if out_cache.do_full_cache and \
-            out_cache.prompt_count +1 > len(input_hist):
-            pass
-            #input_hist.extend(['\n'] * (out_cache.prompt_count - len(input_hist)))
-            
-        if not continuation and line_mod:
-            self._iii = self._ii
-            self._ii = self._i
-            self._i = self._i00
-            # put back the final \n of every input line
-            self._i00 = line_mod+'\n'
-            #print 'Logging input:<%s>' % line_mod  # dbg
-            #input_hist.append(self._i00)
-        #print '---[%s]' % (len(input_hist)-1,) # dbg
-
-        # hackish access to top-level namespace to create _i1,_i2... dynamically
-        to_main = {'_i':self._i,'_ii':self._ii,'_iii':self._iii}
-        if self.shell.displayhook.do_full_cache:
-            in_num = self.shell.displayhook.prompt_count
-
-            # but if the opposite is true (a macro can produce multiple inputs
-            # with no output display called), then bring the output counter in
-            # sync:
-            ## last_num = len(input_hist)-1
-            ## if in_num != last_num:
-            ##     pass # dbg
-            ##     #in_num = self.shell.execution_count = last_num
-
-            new_i = '_i%s' % in_num
-            if continuation:
-                self._i00 = '%s%s\n' % (self.shell.user_ns[new_i],line_mod)
-                #input_hist[in_num] = self._i00
-            to_main[new_i] = self._i00
-        self.shell.user_ns.update(to_main)
+        - line_ori: unmodified input line from the user.  This is not
+        necessarily valid Python.
+        """
 
         # Write the log line, but decide which one according to the
         # log_raw_input flag, set when the log is started.
         if self.log_raw_input:
             self.log_write(line_ori)
         else:
             self.log_write(line_mod)
 
     def log_write(self,data,kind='input'):
         """Write data to the log file, if active"""
 
         #print 'data: %r' % data # dbg
         if self.log_active and data:
             write = self.logfile.write
             if kind=='input':
                 if self.timestamp:
                     write(time.strftime('# %a, %d %b %Y %H:%M:%S\n',
                                         time.localtime()))
-                write('%s\n' % data)
+                write(data)
             elif kind=='output' and self.log_output:
                 odata = '\n'.join(['#[Out]# %s' % s
-                                   for s in data.split('\n')])
+                                   for s in data.splitlines()])
                 write('%s\n' % odata)
             self.logfile.flush()
 
     def logstop(self):
         """Fully stop logging and close log file.
 
         In order to start logging again, a new logstart() call needs to be
         made, possibly (though not necessarily) with a new filename, mode and
         other options."""
         
         self.logfile.close()
         self.logfile = None
         self.log_active = False
 
     # For backwards compatibility, in case anyone was using this.
     close_log = logstop