Contribute code

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[[Main Page]] > [[Development]] > Contribute code
 
[[Main Page]] > [[Development]] > Contribute code
  
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Expanded contribution guidelines can also be found in the Archivematica [https://github.com/artefactual/archivematica/blob/qa/1.x/CONTRIBUTING.md contributing document].
 +
 +
[[Category:Process documentation]]
  
 
==Patches==
 
==Patches==
If you find a bug in this project or would like to make an enhancement, please be encouraged to contribute a patch by following [[Patches|these instructions]].
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 +
If you find a bug in this project or would like to make an enhancement, please be encouraged to contribute code via a pull request.  Archivematica code is available on github. We will accept git pull requests from individuals who have submitted a [[Contributor Agreement]].
 +
 
 +
For more information please visit:
 +
* https://help.github.com/articles/creating-a-pull-request
 +
* https://help.github.com/articles/using-pull-requests
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* https://help.github.com/articles/fork-a-repo
  
 
==Commit access==
 
==Commit access==
Line 14: Line 23:
  
 
=== Code Style Guide For Archivematica ===
 
=== Code Style Guide For Archivematica ===
This coding convention is adopted from:
 
<br/>http://www.python.org/dev/peps/pep-0008/
 
<br/>authors: Guido van Rossum <guido at python.org>, Barry Warsaw <barry at python.org>
 
  
*Tabs are forbidden.
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Archivematica follows common Python coding standards, linked below.  We encourage installing a Python [http://stackoverflow.com/questions/8503559/what-is-linting linter] to help with this. [https://pypi.python.org/pypi/flake8 flake8] is recommended because it wraps three common linters (pep8, pyflakes, mccabe).
*4 spaces per indent.
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* [https://www.python.org/dev/peps/pep-0008/ PEP8] for styling
*cammelCase all variables, starting with lower case.
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** Exception is line length, which should be wrapped at 79 characters or left long for the IDE to wrap.
*Max 79 characters per line.
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** Imports are sorted alphabetically within their grouping to reduce duplicate imports
*Each import is on it's own line (no comma separated imports)
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* [https://www.python.org/dev/peps/pep-0257/ PEP257] for docstring structure
*No spaces next to parenthesis '('
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** Parameters and return values should be specified in [http://sphinx-doc.org/domains.html#info-field-lists Sphinx-style].
*No space before comma, space after comma.
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* See also [https://github.com/artefactual/archivematica/pull/218 this pull request] and associated discussion.
*Assignments and comparators are given a single space separator 'x = 1'
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 +
Example docstrings with Sphinx markup below. Other attributes that can be used in a docstring can be found [http://sphinx-doc.org/domains.html#the-python-domain on the Sphinx website].
 +
 
 +
<pre>def get_unit_status(unit_uuid, unit_type):
 +
    """
 +
    Get status for a SIP or Transfer.
 +
 
 +
    Returns a dict with status info.  Keys will always include 'status' and
 +
    'microservice', and may include 'sip_uuid'.
 +
 
 +
    Status is one of FAILED, REJECTED, USER_INPUT, COMPLETE or PROCESSING.
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    Microservice is the name of the current microservice.
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    SIP UUID is populated only if the unit_type was unitTransfer and status is
 +
    COMPLETE.  Otherwise, it is None.
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 +
    :param str unit_uuid: UUID of the SIP or Transfer
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    :param str unit_type: unitSIP or unitTransfer
 +
    :return: Dict with status info.
 +
    """</pre>
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<pre>def each_child(path, file_group_identifier, base_path, base_path_name, sip_uuid):
 +
    """
 +
    Iterates over entries in a filesystem, beginning at `path`.
 +
 
 +
    At each entry in the filesystem, yields either a File model instance
 +
    (for files) or a string (for directories).
 +
 
 +
    When iterating, makes two passes: first iterating over files, then
 +
    directories. Does not iterate over directories; consumers should
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    call this function again on directory strings to recurse.
 +
 
 +
    :param string path: path to a directory on disk to recurse into.
 +
    :raises ValueError: if the specified path does not exist, or is not a directory.
 +
    """
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</pre>
  
 
=== File Structure ===
 
=== File Structure ===

Latest revision as of 18:40, 23 March 2017

Main Page > Development > Contribute code

Expanded contribution guidelines can also be found in the Archivematica contributing document.

Contents

[edit] Patches

If you find a bug in this project or would like to make an enhancement, please be encouraged to contribute code via a pull request. Archivematica code is available on github. We will accept git pull requests from individuals who have submitted a Contributor Agreement.

For more information please visit:

[edit] Commit access

Anyone can contribute code patches to this project. Project collaborators and regular patch contributors will be given access to commit directly to the git code repository.

[edit] Contributor's Agreement

In order to accept any patches or code commits, contributors must first sign the Archivematica Contributor's Agreement.

[edit] Standards

[edit] Code Style Guide For Archivematica

Archivematica follows common Python coding standards, linked below. We encourage installing a Python linter to help with this. flake8 is recommended because it wraps three common linters (pep8, pyflakes, mccabe).

  • PEP8 for styling
    • Exception is line length, which should be wrapped at 79 characters or left long for the IDE to wrap.
    • Imports are sorted alphabetically within their grouping to reduce duplicate imports
  • PEP257 for docstring structure
    • Parameters and return values should be specified in Sphinx-style.
  • See also this pull request and associated discussion.

Example docstrings with Sphinx markup below. Other attributes that can be used in a docstring can be found on the Sphinx website.

def get_unit_status(unit_uuid, unit_type):
    """
    Get status for a SIP or Transfer.

    Returns a dict with status info.  Keys will always include 'status' and
    'microservice', and may include 'sip_uuid'.

    Status is one of FAILED, REJECTED, USER_INPUT, COMPLETE or PROCESSING.
    Microservice is the name of the current microservice.
    SIP UUID is populated only if the unit_type was unitTransfer and status is
    COMPLETE.  Otherwise, it is None.

    :param str unit_uuid: UUID of the SIP or Transfer
    :param str unit_type: unitSIP or unitTransfer
    :return: Dict with status info.
    """
def each_child(path, file_group_identifier, base_path, base_path_name, sip_uuid):
    """
    Iterates over entries in a filesystem, beginning at `path`.

    At each entry in the filesystem, yields either a File model instance
    (for files) or a string (for directories).

    When iterating, makes two passes: first iterating over files, then
    directories. Does not iterate over directories; consumers should
    call this function again on directory strings to recurse.

    :param string path: path to a directory on disk to recurse into.
    :raises ValueError: if the specified path does not exist, or is not a directory.
    """

[edit] File Structure

The file structure in Archivematica will comply with the Filesystem Hierarchy Standard (FHS).
More information on this standard is available at:
http://www.pathname.com/fhs/

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