gcp/README.md

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gcp
===
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gcp (Goffi's cp) is a file copier.
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License
=======
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gcp is free software: you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.
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gcp is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
gcp. If not, see <http://www.gnu.org/licenses/>.
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About
=====
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gcp is a file copier, loosely inspired from cp, but with high level
functionalities such as:
- **Progress bar.**
- gcp **keeps copying** even when there is an issue: it just skips the file,
logs an error and goes on.
- **Logging**: gcp writes what it's doing to a log file; this allows you to
know which files were effectively copied.
- **Fixing file names** to be compatible with the target filesystem (e.g.
removing incompatible chars like `?` or `*` on FAT).
- **Queue**: if you launch a copy when another copy is already running, the
files are added to the first queue; this optimizes hard drive head movement
and filesystem fragmentation.
- **Files saving**: you can keep track of the files you have copied, and copy
them again later (useful when, for example, you copy some free music to your
friends on a regular basis).
- gcp will be **approximately option-compatible with cp** (approximately
because the behaviour is not exactly the same, see below).
**WARNING**: gcp is at a relatively early stage of development, use at your own
risks!
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How to use it?
==============
Pretty much like cp (see `gcp --help`).
Please note that the behaviour is not exactly the same as cp's, even if gcp
aims to be option-compatible. Mainly, the destination filenames can be modified
(cf. the `--fs-fix` option).
gcp doesn't implement all the options from cp yet, but it's a long-term goal.
Logging
=======
The log file is aimed to be used by gcp itself, buts remains human-readable. It
is located in `~/.gcp/journal`.
3 states are used:
- **OK** means the file was copied and all operation were successful.
- **PARTIAL** means the file was copied, but something went wrong (file
permissions could not be preserved, file name had to be changed, etc.).
- **FAILED**: the file was *not* copied.
After the state, a list of things that went wrong is shown, separated by ", ".
Contribution ideas
==================
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Here are some ideas for future developments:
- handle XDG
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- copy queue management (moving copy order)
- advanced console interface
- notification (XMPP and maybe email) when a long copy is finished
- retry for files that were not correctly copied
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- badly encoded unicode filenames fix
- file copy integrity check
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And in an even more distant future:
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- graphic interface
- desktop (Kde, Gnome, XFCE...) integration
- distant copy (FTP)
- basic server mode, for copying files on network without the need of NFS or
other heavy stuff
Credits
=======
A big big thanks to the authors/contributors of...
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* **progressbar**:
gcp uses [ProgressBar](https://pypi.python.org/pypi/progressbar), a class
coded by Nilton Volpato that allows the textual representation of
progression.
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* **GLib**:
This heavily used library is used here for the main loop, event catching, and
for DBus. Get it at <https://developer.gnome.org/glib/>.
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* **DBus**:
This excellent IPC is ut the heart of gcp. Get more information at
<https://www.freedesktop.org/wiki/Software/dbus/>.
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* **Python** and its amazing standard library:
gcp was coded quickly for my own needs thanks to this excellent and efficient
language and its really huge standard library. Python can be download at
<https://www.python.org/>.
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If I forgot any credit, please contact me (email below) to fix that.
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Big thanks to contributors and package maintainers.
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Contributors
============
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* Original author: Jérôme Poisson aka Goffi <goffi@goffi.org> 2010-2011.
* Thomas Preud'homme <robotux@celest.fr> 2011: manpage, stat resolution fix.
* Jingbei Li aka petronny 2016: conversion to Python3.
* Matteo Cypriani <mcy@lm7.fr> 2018: `--fs-fix` option, Python3 fixes.
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Contact
=======
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Feedback, bug reports, patches, etc. are welcome, either by email or on the
repository's issue tracker <https://code.lm7.fr/mcy/gcp/issues>.
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You can also have a look at Goffi's other main project, [Salut à
Toi](https://www.salut-a-toi.org/) (SàT), a Jabber/XMPP-based multi-frontend,
multipurpose communication tool.
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Don't hesitate to give feedback :)