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""" Tab completion support for a couple of linux package managers
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This is also an example of how to write custom completer plugins
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or hooks.
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Practical use:
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[ipython]|1> import ipy_linux_package_managers
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[ipython]|2> apt-get u<<< press tab here >>>
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update upgrade
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[ipython]|2> apt-get up
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"""
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import IPython.ipapi
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import glob,os,shlex
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ip = IPython.ipapi.get()
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def apt_completers(self, event):
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""" This should return a list of strings with possible completions.
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Note that all the included strings that don't start with event.symbol
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are removed, in order to not confuse readline.
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"""
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# print event # dbg
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# commands are only suggested for the 'command' part of package manager
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# invocation
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cmd = (event.line + "<placeholder>").rsplit(None,1)[0]
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# print cmd
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if cmd.endswith('apt-get') or cmd.endswith('yum'):
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return ['update', 'upgrade', 'install', 'remove']
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# later on, add dpkg -l / whatever to get list of possible
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# packages, add switches etc. for the rest of command line
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# filling
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raise IPython.ipapi.TryNext
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# re_key specifies the regexp that triggers the specified completer
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ip.set_hook('complete_command', apt_completers, re_key = '.*apt-get')
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ip.set_hook('complete_command', apt_completers, re_key = '.*yum')
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def module_completer(self,event):
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""" Give completions after user has typed 'import' """
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import pkgutil,imp,time
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for ld, name, ispkg in pkgutil.walk_packages():
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if ispkg:
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yield name + '.'
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else:
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yield name
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return
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ip.set_hook('complete_command', module_completer, str_key = 'import')
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ip.set_hook('complete_command', module_completer, str_key = 'from')
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svn_commands = """\
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add blame praise annotate ann cat checkout co cleanup commit ci copy
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cp delete del remove rm diff di export help ? h import info list ls
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lock log merge mkdir move mv rename ren propdel pdel pd propedit pedit
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pe propget pget pg proplist plist pl propset pset ps resolved revert
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status stat st switch sw unlock update
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"""
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def svn_completer(self,event):
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if len((event.line + 'placeholder').split()) > 2:
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# the rest are probably file names
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return ip.IP.Completer.file_matches(event.symbol)
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return svn_commands.split()
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ip.set_hook('complete_command', svn_completer, str_key = 'svn')
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def runlistpy(self, event):
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comps = shlex.split(event.line)
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relpath = (len(comps) > 1 and comps[-1] or '')
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print "rp",relpath
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if relpath.startswith('~'):
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relpath = os.path.expanduser(relpath)
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dirs = [f.replace('\\','/') + "/" for f in glob.glob(relpath+'*') if os.path.isdir(f)]
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pys = [f.replace('\\','/') for f in glob.glob(relpath+'*.py')]
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return dirs + pys
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ip.set_hook('complete_command', runlistpy, str_key = '%run')
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def listdirs(self, event):
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relpath = event.symbol
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if '-b' in event.line:
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# return only bookmark completions
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bkms = self.db.get('bookmarks',{})
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return bkms.keys()
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if event.symbol == '-':
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# jump in directory history by number
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ents = ['-%d [%s]' % (i,s) for i,s in enumerate(ip.user_ns['_dh'])]
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if len(ents) > 1:
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return ents
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return []
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if relpath.startswith('~'):
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relpath = os.path.expanduser(relpath).replace('\\','/')
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found = [f.replace('\\','/')+'/' for f in glob.glob(relpath+'*') if os.path.isdir(f)]
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if not found:
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return [relpath]
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return found
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ip.set_hook('complete_command', listdirs, str_key = '%cd')
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