Make the file system more user friendly (#11)

* Make the file system more user friendly

* Use pip package in tests

Author: libre-man

.travis.yml

@@ -35,7 +35,8 @@ install:
   - pip install -U wheel
   - pip install coveralls pytest-cov
   - pip install codecov
-  - pip install -r requirements.txt
+  - pip install .
+  - which cgfs
   - pip install celery[redis]
   - git clone https://github.com/CodeGra-de/CodeGra.de.git backend
   - pip install -r backend/requirements.txt

Makefile

@@ -12,9 +12,10 @@ format:
 
 .PHONY: test
 test:
+	which cgfs
 	coverage erase
 	$(PYTEST) test/ -vvvvvvvvv $(TEST_FLAGS)
-	coverage report -m cgfs.py
+	coverage report -m codegra_fs/cgfs.py
 
 .PHONY: test_quick
 test-quick: TEST_FLAGS += -x

README.md

@@ -1,5 +1,5 @@
 # CodeGra.fs
-CodeGra.de filesystem
+*The [CodeGra.de](https://github.com/CodeGra-de/CodeGra.de) filesystem*
 
 <p align="center">
   <a href="https://travis-ci.org/CodeGra-de/CodeGra.fs">
@@ -31,3 +31,65 @@ CodeGra.de filesystem
       alt="Chat as developer on Matrix: #DevCodeGra.de:matrix.org">
   </a>
 </p>
+
+## Installation
+You can install this package using `pip`. At the moment this package is not yet
+in the pip repositories, however you can install it directly from git: `pip3
+install --user git+https://github.com/CodeGra-de/CodeGra.fs.git`. This installs
+to scripts, `cgfs` used to mount the file-system and `cgapi-consumer` used by
+editor plugins.
+
+Please note that `pip3` is used, this because CodeGra.fs only with works with
+python **3.5** or higher. It depends on:
+- [fusepy](https://github.com/terencehonles/fusepy)
+- [requests](http://docs.python-requests.org/en/master/)
+
+## Usage
+The basic used of the `cgfs` can be viewed by executing `cgfs --help`. The idea
+behind `cgfs` is that you mount a CodeGra.de instance on you local computer, in
+the mounted folder you can now browse, alter and delete files submitted by
+yourself and people you have to grade.
+
+The basic layout of the file-system is `/course/assingment/submission -
+submission_time`, so for example `/datastructures/linked-list/Thomas Schaper -
+2017-11-14T13:41:26.324712`. All files that a student submitted can be found in
+the submission folder.
+
+The file-system also contains a few *special* files, these are files that are
+not submitted by a student but can be used to control CodeGra.de. These files
+are validated on a close, which fails if the file format is not correct. The
+following special files exist:
+
+| Name | Editable<a href="#footnote-1-b"><sup id="footnote-1-a">1</sup></a> | Location | Use | Format |
+| ---- | -------- | -------- | --- | ------ |
+| `.api.socket` | ✗ | Root | Location of the api socket | Single line with file location |
+| `.cg-mode` | ✗ | Root | Mode file system | `FIXED` or `NOT_FIXED` |
+| `.cg-assignment-id` | ✗ | Assignment | Id of this assignment | Single line with id |
+| `.cg-assignment-settings.ini` | ✓ | Assignment | Settings for this assignment | Ini file with settings |
+| `.cg-edit-rubric.md` | ✓ | Assignment | Rubric for this assignment, editing changes the rubric | See `.cd-edit-rubric.help` |
+| `.cg-edit-rubric.help` | ✗ | Assignment | Help file for the rubric file | Plain text file |
+| `.cg-feedback` | ✓ | Submission | The general feedback for this submission | Plain text file |
+| `.cg-grade` | ✓ | Submission | The grade for this submission | Single float or empty to delete or reset<a href="#footnote-2-b"><sup id="footnote-2-a">2</sup></a> the grade |
+| `.cg-rubric.md` | ✓<a href="#footnote-3-b"><sup id="footnote-3-a">3</sup></a> | Submission | The rubric for this submission | Markdown file where a ticked box means the item is selected. |
+| `.cg-submission-id` | ✗ | Submission | Id of this submission | Single line with id |
+
+<a href="#footnote-1-a"><sup id="footnote-1-b">1</sup></a>: Only if
+you have the correct permissions.
+
+<a href="#footnote-2-a"><sup id="footnote-2-b">2</sup></a>: The grade is reset
+if a rubric grade is available, otherwise it is deleted.
+
+<a href="#footnote-3-a"><sup id="footnote-3-b">3</sup></a>: Only
+markdown checkboxes should be changed.
+
+It can happen that you didn't follow the exact format of the special file and
+can't easily recover anymore. This isn't a really big deal, you can write the
+string `__RESET__` to any writable special file to reset it to its server state.
+
+CodeGra.fs is best used in combination with an editor plugin, such plugins exist
+for [emacs](https://github.com/CodeGra-de/CodeGra.el) and
+[atom](https://github.com/CodeGra-de/CodeGra.atom) and more are being created.
+
+## LICENSE
+This code is licensed under AGPL-v3, see the license file for the exact
+license as this information may be out of date.

api_consumer.py renamed to codegra_fs/api_consumer.py

@@ -28,7 +28,8 @@ def recv(s):
         message += m
         if len(m) < 1024:
             break
-    return message
+
+    return message.decode()
 
 
 def is_file(s, file):