mirror of
https://github.com/QuantumPackage/qp2.git
synced 2024-12-27 13:53:29 +01:00
115 lines
3.0 KiB
ReStructuredText
115 lines
3.0 KiB
ReStructuredText
==================
|
|
Coding conventions
|
|
==================
|
|
|
|
|
|
General conventions
|
|
===================
|
|
|
|
All executable files should have a name with lowercase.
|
|
|
|
Tabs are forbidden everywhere.
|
|
|
|
Try to set the maximum line length to 80 characters. Long lines can be
|
|
automatically reformatted in vim by pressing :kbd:`gqj`.
|
|
|
|
Use blank lines between blocks to improve readability.
|
|
|
|
For existing files, stay faithful to the existing indentation.
|
|
|
|
|
|
|
|
Shell scripts
|
|
=============
|
|
|
|
Executables should have no extension. To know if the file is binary, or in
|
|
what shell scripting language it was written, the :command:`file` command can
|
|
be used. In addition, all the shell scripts should be under
|
|
:file:`${QP_ROOT}/scripts/`.
|
|
|
|
The exit code of the script should be 0 upon success only.
|
|
|
|
Bash and Python3 are the only shell scripting language permitted for
|
|
executables.
|
|
|
|
|
|
Bash
|
|
----
|
|
|
|
* Bash scripts should start with ``#!/bin/bash``
|
|
|
|
* All error messages should go to standard error, and should be prefixed with
|
|
the name of the command. For example, in Bash use
|
|
|
|
.. code:: bash
|
|
|
|
function echo_err() {
|
|
2>& echo $(basename $0)": error"
|
|
}
|
|
|
|
* The command-line options should be handled with ``getopt``.
|
|
|
|
* The script should check that the command-line arguments are consistent.
|
|
|
|
* Long options should be preferred to short options.
|
|
|
|
* Always quote strings containing variables, command substitutions, spaces or
|
|
shell meta characters, unless careful unquoted expansion is required.
|
|
|
|
* Use ``"$@"`` unless you have a specific reason to use ``$*``.
|
|
|
|
* Use ``$(command)`` instead of backticks, because they can be easily nested.
|
|
|
|
* ``[[ ... ]]`` is preferred over ``[``, ``test`` and ``/usr/bin/[``.
|
|
|
|
* Declare function-specific variables with local. Declaration and assignment
|
|
should be on different lines.
|
|
|
|
* Pipelines should be split one per line if they don't all fit on one line.
|
|
|
|
* Put ``; do`` and ``; then`` on the same line as the ``while``, ``for`` or ``if``.
|
|
|
|
|
|
Python
|
|
------
|
|
|
|
Only Python3 is supported.
|
|
|
|
Python scripts should start with ``#!/usr/bin/env python3`` to mention
|
|
explicitly that Python3 has to be used, possibly from a conda installation.
|
|
|
|
:command:`pylint` should be used to increase the quality of the source code.
|
|
|
|
|
|
|
|
IRPF90
|
|
======
|
|
|
|
The code can be automatically indented with :command:`irp_indent`.
|
|
|
|
Lines sould not be longer than 80 characters.
|
|
|
|
Mathematical formulas in the `BEGIN_DOC...END_DOC` sections sould be written in
|
|
LaTeX format, between `$` symbols.
|
|
|
|
All the providers, subroutines and functions should have a
|
|
`BEGIN_DOC...END_DOC` block.
|
|
|
|
Providers should never be present in the same file as a main program.
|
|
|
|
String must not use double quotes (`"`) but single quotes (`'`).
|
|
|
|
After a `read` statement there should be no comma.
|
|
|
|
Only standard Fortran is allowed : Intel or GNU extensions are forbidden.
|
|
|
|
The name of a program should be the same as the name of the file. For example,
|
|
for the :ref:`fci` program, we have
|
|
|
|
.. code-block:: fortran
|
|
|
|
program fci
|
|
|
|
and the file is named :file:`fci.irp.f`.
|
|
|