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ipy_fsops.py
243 lines | 6.4 KiB | text/x-python | PythonLexer
""" File system operations
Contains: Simple variants of normal unix shell commands (icp, imv, irm,
imkdir, igrep).
Some "otherwise handy" utils ('collect' for gathering files to
~/_ipython/collect, 'inote' for collecting single note lines to
~/_ipython/note.txt)
Mostly of use for bare windows installations where cygwin/equivalent is not
installed and you would otherwise need to deal with dos versions of the
commands (that e.g. don't understand / as path separator). These can
do some useful tricks on their own, though (like use 'mglob' patterns).
Not to be confused with ipipe commands (ils etc.) that also start with i.
"""
import IPython.ipapi
ip = IPython.ipapi.get()
import shutil,os,shlex
from IPython.external import mglob
from IPython.external.path import path
from IPython.ipapi import UsageError
def parse_args(args):
""" Given arg string 'CMD files... target', return ([files], target) """
tup = args.split(None, 1)
if len(tup) == 1:
raise UsageError("Expected arguments for " + tup[0])
tup2 = shlex.split(tup[1])
flist, trg = mglob.expand(tup2[0:-1]), tup2[-1]
if not flist:
raise UsageError("No files found:" + str(tup2[0:-1]))
return flist, trg
def icp(ip,arg):
""" icp files... targetdir
Copy all files to target, creating dirs for target if necessary
icp srcdir dstdir
Copy srcdir to distdir
"""
import distutils.dir_util
fs, targetdir = parse_args(arg)
if not os.path.isdir(targetdir) and len(fs) > 1:
distutils.dir_util.mkpath(targetdir,verbose =1)
for f in fs:
if os.path.isdir(f):
shutil.copytree(f, targetdir)
else:
shutil.copy2(f,targetdir)
return fs
ip.defalias("icp",icp)
def imv(ip,arg):
""" imv src tgt
Move source to target.
"""
fs, target = parse_args(arg)
if len(fs) > 1:
assert os.path.isdir(target)
for f in fs:
shutil.move(f, target)
return fs
ip.defalias("imv",imv)
def irm(ip,arg):
""" irm path[s]...
Remove file[s] or dir[s] path. Dirs are deleted recursively.
"""
try:
paths = mglob.expand(arg.split(None,1)[1])
except IndexError:
raise UsageError("%irm paths...")
import distutils.dir_util
for p in paths:
print "rm",p
if os.path.isdir(p):
distutils.dir_util.remove_tree(p, verbose = 1)
else:
os.remove(p)
ip.defalias("irm",irm)
def imkdir(ip,arg):
""" imkdir path
Creates dir path, and all dirs on the road
"""
import distutils.dir_util
targetdir = arg.split(None,1)[1]
distutils.dir_util.mkpath(targetdir,verbose =1)
ip.defalias("imkdir",imkdir)
def igrep(ip,arg):
""" igrep PAT files...
Very dumb file scan, case-insensitive.
e.g.
igrep "test this" rec:*.py
"""
elems = shlex.split(arg)
dummy, pat, fs = elems[0], elems[1], mglob.expand(elems[2:])
res = []
for f in fs:
found = False
for l in open(f):
if pat.lower() in l.lower():
if not found:
print "[[",f,"]]"
found = True
res.append(f)
print l.rstrip()
return res
ip.defalias("igrep",igrep)
def collect(ip,arg):
""" collect foo/a.txt rec:bar=*.py
Copies foo/a.txt to ~/_ipython/collect/foo/a.txt and *.py from bar,
likewise
Without args, try to open ~/_ipython/collect dir (in win32 at least).
"""
from IPython.external.path import path
basedir = path(ip.options.ipythondir + '/collect')
try:
fs = mglob.expand(arg.split(None,1)[1])
except IndexError:
os.startfile(basedir)
return
for f in fs:
f = path(f)
trg = basedir / f.splitdrive()[1].lstrip('/\\')
if f.isdir():
print "mkdir",trg
trg.makedirs()
continue
dname = trg.dirname()
if not dname.isdir():
dname.makedirs()
print f,"=>",trg
shutil.copy2(f,trg)
ip.defalias("collect",collect)
def inote(ip,arg):
""" inote Hello world
Adds timestamp and Hello world to ~/_ipython/notes.txt
Without args, opens notes.txt for editing.
"""
import time
fname = ip.options.ipythondir + '/notes.txt'
try:
entry = " === " + time.asctime() + ': ===\n' + arg.split(None,1)[1] + '\n'
f= open(fname, 'a').write(entry)
except IndexError:
ip.IP.hooks.editor(fname)
ip.defalias("inote",inote)
def pathobj_mangle(p):
return p.replace(' ', '__').replace('.','DOT')
def pathobj_unmangle(s):
return s.replace('__',' ').replace('DOT','.')
class PathObj(path):
def __init__(self,p):
self.path = p
if p != '.':
self.ents = [pathobj_mangle(ent) for ent in os.listdir(p)]
else:
self.ents = None
def __complete__(self):
if self.path != '.':
return self.ents
self.ents = [pathobj_mangle(ent) for ent in os.listdir('.')]
return self.ents
def __getattr__(self,name):
if name in self.ents:
if self.path.endswith('/'):
sep = ''
else:
sep = '/'
tgt = self.path + sep + pathobj_unmangle(name)
#print "tgt",tgt
if os.path.isdir(tgt):
return PathObj(tgt)
if os.path.isfile(tgt):
return path(tgt)
raise AttributeError, name # <<< DON'T FORGET THIS LINE !!
def __str__(self):
return self.path
def __repr__(self):
return "<PathObj to %s>" % self.path
def __call__(self):
print "cd:",self.path
os.chdir(self.path)
def complete_pathobj(obj, prev_completions):
if hasattr(obj,'__complete__'):
res = obj.__complete__()
if res:
return res
# just return normal attributes of 'path' object if the dir is empty
raise IPython.ipapi.TryNext
complete_pathobj = IPython.generics.complete_object.when_type(PathObj)(complete_pathobj)
def test_pathobj():
#p = PathObj('c:/prj')
#p2 = p.cgi
#print p,p2
rootdir = PathObj("/")
startmenu = PathObj("d:/Documents and Settings/All Users/Start Menu/Programs")
cwd = PathObj('.')
ip.to_user_ns("rootdir startmenu cwd")
#test_pathobj()