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""" File system operations
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Contains: Simple variants of normal unix shell commands (icp, imv, irm,
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imkdir, igrep).
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Some "otherwise handy" utils ('collect' for gathering files to
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~/_ipython/collect, 'inote' for collecting single note lines to
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~/_ipython/note.txt)
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Mostly of use for bare windows installations where cygwin/equivalent is not
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installed and you would otherwise need to deal with dos versions of the
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commands (that e.g. don't understand / as path separator). These can
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do some useful tricks on their own, though (like use 'mglob' patterns).
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Not to be confused with ipipe commands (ils etc.) that also start with i.
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"""
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from IPython.core import ipapi
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from IPython.core.error import TryNext
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ip = ipapi.get()
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import shutil,os,shlex
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from IPython.external import mglob
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from IPython.external.path import path
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from IPython.core.error import UsageError
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import IPython.utils.generics
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def parse_args(args):
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""" Given arg string 'CMD files... target', return ([files], target) """
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tup = args.split(None, 1)
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if len(tup) == 1:
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raise UsageError("Expected arguments for " + tup[0])
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tup2 = shlex.split(tup[1])
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flist, trg = mglob.expand(tup2[0:-1]), tup2[-1]
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if not flist:
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raise UsageError("No files found:" + str(tup2[0:-1]))
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return flist, trg
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def icp(ip,arg):
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""" icp files... targetdir
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Copy all files to target, creating dirs for target if necessary
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icp srcdir dstdir
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Copy srcdir to distdir
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"""
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import distutils.dir_util
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fs, targetdir = parse_args(arg)
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if not os.path.isdir(targetdir) and len(fs) > 1:
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distutils.dir_util.mkpath(targetdir,verbose =1)
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for f in fs:
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if os.path.isdir(f):
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shutil.copytree(f, targetdir)
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else:
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shutil.copy2(f,targetdir)
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return fs
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ip.define_alias("icp",icp)
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def imv(ip,arg):
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""" imv src tgt
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Move source to target.
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"""
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fs, target = parse_args(arg)
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if len(fs) > 1:
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assert os.path.isdir(target)
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for f in fs:
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shutil.move(f, target)
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return fs
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ip.define_alias("imv",imv)
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def irm(ip,arg):
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""" irm path[s]...
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Remove file[s] or dir[s] path. Dirs are deleted recursively.
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"""
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try:
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paths = mglob.expand(arg.split(None,1)[1])
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except IndexError:
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raise UsageError("%irm paths...")
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import distutils.dir_util
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for p in paths:
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print "rm",p
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if os.path.isdir(p):
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distutils.dir_util.remove_tree(p, verbose = 1)
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else:
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os.remove(p)
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ip.define_alias("irm",irm)
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def imkdir(ip,arg):
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""" imkdir path
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Creates dir path, and all dirs on the road
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"""
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import distutils.dir_util
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targetdir = arg.split(None,1)[1]
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distutils.dir_util.mkpath(targetdir,verbose =1)
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ip.define_alias("imkdir",imkdir)
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def igrep(ip,arg):
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""" igrep PAT files...
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Very dumb file scan, case-insensitive.
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e.g.
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igrep "test this" rec:*.py
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"""
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elems = shlex.split(arg)
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dummy, pat, fs = elems[0], elems[1], mglob.expand(elems[2:])
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res = []
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for f in fs:
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found = False
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for l in open(f):
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if pat.lower() in l.lower():
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if not found:
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print "[[",f,"]]"
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found = True
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res.append(f)
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print l.rstrip()
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return res
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ip.define_alias("igrep",igrep)
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def collect(ip,arg):
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""" collect foo/a.txt rec:bar=*.py
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Copies foo/a.txt to ~/_ipython/collect/foo/a.txt and *.py from bar,
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likewise
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Without args, try to open ~/_ipython/collect dir (in win32 at least).
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"""
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from IPython.external.path import path
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basedir = path(ip.ipython_dir + '/collect')
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try:
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fs = mglob.expand(arg.split(None,1)[1])
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except IndexError:
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os.startfile(basedir)
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return
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for f in fs:
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f = path(f)
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trg = basedir / f.splitdrive()[1].lstrip('/\\')
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if f.isdir():
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print "mkdir",trg
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trg.makedirs()
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continue
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dname = trg.dirname()
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if not dname.isdir():
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dname.makedirs()
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print f,"=>",trg
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shutil.copy2(f,trg)
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ip.define_alias("collect",collect)
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def inote(ip,arg):
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""" inote Hello world
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Adds timestamp and Hello world to ~/_ipython/notes.txt
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Without args, opens notes.txt for editing.
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"""
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import time
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fname = ip.ipython_dir + '/notes.txt'
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try:
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entry = " === " + time.asctime() + ': ===\n' + arg.split(None,1)[1] + '\n'
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f= open(fname, 'a').write(entry)
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except IndexError:
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ip.hooks.editor(fname)
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ip.define_alias("inote",inote)
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def pathobj_mangle(p):
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return p.replace(' ', '__').replace('.','DOT')
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def pathobj_unmangle(s):
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return s.replace('__',' ').replace('DOT','.')
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class PathObj(path):
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def __init__(self,p):
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self.path = p
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if p != '.':
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self.ents = [pathobj_mangle(ent) for ent in os.listdir(p)]
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else:
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self.ents = None
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def __complete__(self):
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if self.path != '.':
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return self.ents
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self.ents = [pathobj_mangle(ent) for ent in os.listdir('.')]
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return self.ents
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def __getattr__(self,name):
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if name in self.ents:
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if self.path.endswith('/'):
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sep = ''
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else:
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sep = '/'
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tgt = self.path + sep + pathobj_unmangle(name)
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#print "tgt",tgt
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if os.path.isdir(tgt):
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return PathObj(tgt)
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if os.path.isfile(tgt):
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return path(tgt)
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raise AttributeError, name # <<< DON'T FORGET THIS LINE !!
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def __str__(self):
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return self.path
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def __repr__(self):
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return "<PathObj to %s>" % self.path
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def __call__(self):
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print "cd:",self.path
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os.chdir(self.path)
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def complete_pathobj(obj, prev_completions):
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if hasattr(obj,'__complete__'):
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res = obj.__complete__()
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if res:
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return res
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# just return normal attributes of 'path' object if the dir is empty
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raise TryNext
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complete_pathobj = IPython.utils.generics.complete_object.when_type(PathObj)(complete_pathobj)
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def test_pathobj():
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#p = PathObj('c:/prj')
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#p2 = p.cgi
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#print p,p2
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rootdir = PathObj("/")
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startmenu = PathObj("d:/Documents and Settings/All Users/Start Menu/Programs")
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cwd = PathObj('.')
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ip.push("rootdir startmenu cwd")
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#test_pathobj()
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