ostree/docs/CONTRIBUTING.md
Colin Walters 64ebe2b82a Rewrite manual in mkdocs
I don't much like Docbook (and am considering converting the man pages
too), but let's start with the manual.

I looked at various documentation generators (there are a lot), and
I had a few requirements:

 - Markdown
 - Packaged in Fedora
 - Suitable for upload to a static webserver

`mkdocs` seems to fit the bill.
2016-01-28 09:31:37 -05:00

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Markdown

Submitting patches
------------------
You can:
1. Send mail to ostree-list@gnome.org, with the patch attached
1. Submit a pull request against https://github.com/GNOME/ostree
1. Attach them to https://bugzilla.gnome.org/
Please look at "git log" and match the commit log style.
Running the test suite
----------------------
Currently, ostree uses https://wiki.gnome.org/GnomeGoals/InstalledTests
To run just ostree's tests:
./configure ... --enable-installed-tests
gnome-desktop-testing-runner -p 0 ostree/
Also, there is a regular:
make check
That runs a different set of tests.
Coding style
------------
Indentation is GNU. Files should start with the appropriate mode lines.
Use GCC `__attribute__((cleanup))` wherever possible. If interacting
with a third party library, try defining local cleanup macros.
Use GError and GCancellable where appropriate.
Prefer returning `gboolean` to signal success/failure, and have output
values as parameters.
Prefer linear control flow inside functions (aside from standard
loops). In other words, avoid "early exits" or use of `goto` besides
`goto out;`.
This is an example of an "early exit":
static gboolean
myfunc (...)
{
gboolean ret = FALSE;
/* some code */
/* some more code */
if (condition)
return FALSE;
/* some more code */
ret = TRUE;
out:
return ret;
}
If you must shortcut, use:
if (condition)
{
ret = TRUE;
goto out;
}
A consequence of this restriction is that you are encouraged to avoid
deep nesting of loops or conditionals. Create internal static helper
functions, particularly inside loops. For example, rather than:
while (condition)
{
/* some code */
if (condition)
{
for (i = 0; i < somevalue; i++)
{
if (condition)
{
/* deeply nested code */
}
/* more nested code */
}
}
}
Instead do this:
static gboolean
helperfunc (..., GError **error)
{
if (condition)
{
/* deeply nested code */
}
/* more nested code */
return ret;
}
while (condition)
{
/* some code */
if (!condition)
continue;
for (i = 0; i < somevalue; i++)
{
if (!helperfunc (..., i, error))
goto out;
}
}