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Viewing changes to shell.py

  • Committer: Robert Collins
  • Date: 2006-04-24 01:35:08 UTC
  • mto: (364.1.3 bzrtools)
  • mto: This revision was merged to the branch mainline in revision 366.
  • Revision ID: robertc@robertcollins.net-20060424013508-2d37e47814d9493e
Support importing into empty branches.

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shell.py
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#    You should have received a copy of the GNU General Public License
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#    along with this program; if not, write to the Free Software
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#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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import cmd
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from itertools import chain
 
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import sys
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import os
 
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import terminal
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import readline
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import shlex
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import stat
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import string
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import sys
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from itertools import chain
 
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from bzrlib.errors import BzrError
 
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from bzrlib.commands import get_cmd_object, get_all_cmds, get_alias
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from bzrlib.branch import Branch
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from bzrlib.commands import get_cmd_object, get_all_cmds, get_alias
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from bzrlib.errors import BzrError
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from bzrlib.workingtree import WorkingTree
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import terminal
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SHELL_BLACKLIST = set(['rm', 'ls'])
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COMPLETION_BLACKLIST = set(['shell'])
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class BlackListedCommand(BzrError):
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    def __init__(self, command):
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        BzrError.__init__(self, "The command %s is blacklisted for shell use" %
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                          command)
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class CompletionContext(object):
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    def __init__(self, text, command=None, prev_opt=None, arg_pos=None):
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        self.text = text
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    def get_completions_or_raise(self):
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        if self.command is None:
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            if '/' in self.text:
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                iter = iter_executables(self.text)
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            else:
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                iter = (c+" " for c in iter_command_names() if
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                        c not in COMPLETION_BLACKLIST)
 
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            iter = (c+" " for c in iter_command_names() if
 
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                    c not in COMPLETION_BLACKLIST)
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            return list(filter_completions(iter, self.text))
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        if self.prev_opt is None:
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            completions = self.get_option_completions()
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                completions.extend(list(filter_completions(iter, self.text)))
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            else:
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                iter = iter_file_completions(self.text)
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                completions.extend(filter_completions(iter, self.text))
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            return completions
 
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                completions.extend([f+" " for f in 
 
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                                    filter_completions(iter, self.text)])
 
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            return completions 
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class PromptCmd(cmd.Cmd):
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    def set_prompt(self):
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        if self.tree is not None:
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            try:
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                prompt_data = (self.tree.branch.nick, self.tree.branch.revno(),
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                               self.tree.relpath('.'))
 
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                prompt_data = (self.tree.branch.nick, self.tree.branch.revno(), 
 
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                               self.tree.branch.relpath('.'))
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                prompt = " %s:%d/%s" % prompt_data
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            except:
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                prompt = ""
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        self.default("help "+line)
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    def default(self, line):
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        args = shlex.split(line)
 
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        args = line.split()
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        alias_args = get_alias(args[0])
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        if alias_args is not None:
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            args[0] = alias_args.pop(0)
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        commandname = args.pop(0)
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        for char in ('|', '<', '>'):
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            commandname = commandname.split(char)[0]
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    def completedefault(self, text, line, begidx, endidx):
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        """Perform completion for native commands.
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        :param text: The text to complete
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        :type text: str
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        :param line: The entire line to complete
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            cmd = None
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        return CompletionContext(text, command=cmd).get_completions()
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def run_shell():
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    try:
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        prompt = PromptCmd()
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    except StopIteration:
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        pass
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def iter_opt_completions(command_obj):
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    for option_name, option in command_obj.options().items():
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        yield "--" + option_name
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        if short_name:
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            yield "-" + short_name
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def iter_file_completions(arg, only_dirs = False):
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    """Generate an iterator that iterates through filename completions.
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                userfile+='/'
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                yield userfile
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            elif not only_dirs:
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                yield userfile + ' '
 
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                yield userfile
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def iter_dir_completions(arg):
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    """
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    return iter_file_completions(arg, True)
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def iter_command_names(hidden=False):
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    for real_cmd_name, cmd_class in get_all_cmds():
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        if not hidden and cmd_class.hidden:
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            if name == real_cmd_name or not real_cmd_name.startswith(name):
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                yield name
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def iter_executables(path):
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    dirname, partial = os.path.split(path)
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    for filename in os.listdir(dirname):
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        if not filename.startswith(partial):
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            continue
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        fullpath = os.path.join(dirname, filename)
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        mode=os.lstat(fullpath)[stat.ST_MODE]
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        if stat.S_ISREG(mode) and 0111 & mode:
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            yield fullpath + ' '
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def filter_completions(iter, arg):
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    return (c for c in iter if c.startswith(arg))
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def iter_munged_completions(iter, arg, text):
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    for completion in iter:
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        completion = str(completion)
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        if completion.startswith(arg):
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            yield completion[len(arg)-len(text):]+" "
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def too_complicated(line):
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    for char in '|<>*?':
 
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    for char in '|<>"\"*?':
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        if char in line:
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            return True
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    return False