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Creating file tree from text tree and vice versa

Project description

NAME

txdir — text tree from or to file tree

SYNOPSIS

txdir [<infile>|<indir>|-] [<outdir>|-] [<options>]

Options:

-h: help
-v: version
-l: flat listing
-f: exclude files
-d: include dot files/directories
-n: exclude file content (don't reapply such a tree as it will empty all files)
-m: maximum depth
-c: commands to create directories (from https://github.com/gcmt/mktree)

Files/dirs are ignored via .gitignore.

Command line help:

usage: txdir  [infile] [outdir] [-h] [-v] [-a] [-b] [-l] [-f] [-d] [-n] [-m M] [-c [C [C ...]]]

Files/dirs are ignored via .gitignore. If the directory contains unignored binary files, exclude
files with '-f' or ignoring content with '-n'. Text file content must not have an empty first
line.

positional arguments:
  infile          If a file, it is expected to contain a text representation of a directory, flat
                  or indented (none or - is stdin). If a directory, the text view is created with
                  file content (unless -n).
  outdir          None or - means printing to stdout. If the parameter is an existing file,
                  nothing is done. If not a directory, the directory is created. The file tree is
                  created in the directory.

optional arguments:
  -h              Print help information.
  -v              Print version information.
  -a              Use ASCII instead of unicode when printint the indented view.
  -b              Include content of binary files as base64 encoded.
  -l              Create a flat listing instead of an indented view.
  -f              Omit files. Only list directories.
  -d              Include dot files/directories.
  -n              Omit file content.
  -m M            Maximum directory depth to scan.
  -c [C [C ...]]  Directories described with a DSL (',' = end of token, '.' = up dir, '/' = down)
                  `txdir - . -c 'a/b/d.c/d..a/u,v,x,g\.x'` produces the same as `mkdir -p
                  a/{b,c}/d a/u a/v a/x a/g.x` If not within ', use \\ to escape.

DESCRIPTION

  • Construct a file tree from a text tree.
  • Construct a text tree from a file tree.

This allows to edit a whole file tree within one file first, without the necessity to switch files.

The text tree can also be templated and first run through a tool like stpl before being processed by txdir to produce the final file tree. This usage is like cookiecutter, only that it has the tree definition in one file.

INSTALLATION

To install for user only, do:

pip install --user txdir

COMMAND USAGE

Without arguments it expects input from stdin:

txdir

Exit this via CTRL+C. Use no input argument only in combination with piping, or when using -c.

Use on a directory tree where

  • binary text files are only in dotted directories (e.g. .git) or
  • binary files are ignored via .gitignore
txdir .

produces text output to stdout, similar to tree, but with content, unless content is suppressed with -n.

You can save the output in a file and edit it:

txdir -l . > tmp.txt

The -l option makes the output flat. You can drop the -l, if you want tmp.txt contain an indented tree.

NO directory is created, unless a root is provided as second argument:

txdir tmp.txt .

This applies to the (edited) text tree in tmp.txt on the current directory.

txdir . again

produces the same tree below again, almost like a cp -R . again. But internally a text tree of the file tree is created and then applied to the new location.

Note, that text file content must not have an empty first line.

EXAMPLES

cd ~/tmp
txdir -c r/a/x,y,z
   └─ r/
      └─ a/
         ├─ x/
         ├─ y/
         └─ z/
txdir - . -c r/a/x,y,z
cd r
tree
   .
   └── a
       ├── x
       ├── y
       └── z
txdir .
   └─ a/
      ├─ x/
      ├─ y/
      └─ z/
txdir . > tmp.txt
#edit tmp.txt
cat tmp.txt
   ├─ a/
   │  ├─ x/
         ├─ x.txt
              This is content in x.txt
   │  ├─ y/
         ├─ y.txt
              This is content in y.txt
txdir tmp.txt .
txdir .
   ├─ a/
   │  ├─ x/
   │  │  └─ x.txt
               This is content in x.txt
   │  ├─ y/
   │  │  └─ y.txt
               This is content in y.txt
   │  └─ z/
   └─ tmp.txt
         ├─ a/
         │  ├─ x/
               ├─ x.txt
                    This is content in x.txt
         │  ├─ y/
               ├─ y.txt
                    This is content in y.txt
#Note, that what is below tmp.txt is content of tmp.txt, not actual directories.
#`txdir . | txdir - .` does not create the same tree below ``tmp.txt``,
#because tmp.txt exists as file and not as directory.
txdir a b
txdir . > tmp.txt
#edit tmp.txt adding {{txt}} and removing the tmp.txt line (else tmp.txt is emptied when applying)
cat tmp.txt
   ├─ a/
   │  ├─ x/
   │  │  └─ x.txt
   │  │        {{txt}} x.txt
   │  ├─ y/
   │  │  └─ y.txt
   │  │        {{txt}} y.txt
   │  └─ z/
   ├─ b/
   │  ├─ x/
   │  │  └─ x.txt
   │  │        {{txt}} x.txt
   │  ├─ y/
   │  │  └─ y.txt
   │  │        {{txt}} y.txt
   │  └─ z/
stpl tmp.txt - 'txt="Greeting from"' | txdir - .
rm tmp.txt
txdir . -l
   a/x/x.txt
      Greeting from x.txt
   a/y/y.txt
      Greeting from y.txt
   a/z/
   b/x/x.txt
      Greeting from x.txt
   b/y/y.txt
      Greeting from y.txt
   b/z/
txdir . -l | sed -e "s/ \(.\)\.txt/ \1/g" | txdir - .
txdir . -l
   a/x/x.txt
      Greeting from x
   a/y/y.txt
      Greeting from y
   a/z/
   b/x/x.txt
      Greeting from x
   b/y/y.txt
      Greeting from y
   b/z/

API USAGE

txtdir is a python module.

Naming:

  • view refers to a text tree view
  • flat is a flat tree listing.
  • tree is the actual file tree

Functions:

  • set_ascii, set_utf8
  • view_to_tree
  • tree_to_view
  • flat_to_tree
  • tree_to_flat
  • to_tree decides whether flat_to_tree or view_to_tree should be used
  • main makes the command line functionality accessible to python

Class:

TxDir can hold a file tree in memory. Its content represents

  • directory if list of other TxDir instances
  • link if str with path relative to the location as link target
  • file if tuple of text file lines

TxDir methods:

__init__(self, name='', parent=None, content=None)
__iter__(self) #leaves only
__lt__(self,other) #by name
__str__(self)
__repr__(self)
__call__ = cd
__truediv__(self, other) #changes and returns root
root(self)
path(self)
mkdir = cd #with content=[]
cd(self,apath,content=None) #cd or make node if content!=None
isfile(self)
isdir(self)
islink(self)
view(self)
flat(self)
create(self)

static:

fromcmds(descs)
fromview(viewstr)
fromflat(flatstr)
fromfs(root)

EXAMPLES

>>> import os
>>> from os.path import expanduser
>>> from shutil import rmtree
>>> import sys
>>> from txdir import *

>>> os.chdir(expanduser('~/tmp'))

>>> t = t.fromcmds(['r/a'])
>>> TxDir('x.txt',t('r/a'),('Text in x',))
>>> t.view()
└─ r/
   └─ a/
      └─ x.txt
            Text in x
>>> t.flat()
r/a/x.txt
   Text in x

>>> rmtree('r',ignore_errors=True)
>>> t.create()

>>> t = TxDir.fromfs('r')
>>> t.view()
└─ a/
   └─ x.txt
         Text in x

>>> rmtree('r',ignore_errors=True)
>>> r = TxDir.fromcmds(['r'])
>>> r = r('r')/t('a') #root is returned
>>> t('a') == r('r/a') #r and t are roots
True
>>> r.flat()
r/a/x.txt
   Text in x

License

MIT

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