mirror of
https://gitlab.gnome.org/GNOME/calls.git
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131 lines
3.6 KiB
Markdown
131 lines
3.6 KiB
Markdown
Building
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========
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For build instructions see the README.md
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Pull requests
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=============
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Before filing a pull request run the tests:
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```sh
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ninja -C _build test
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```
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Use descriptive commit messages, see
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https://wiki.gnome.org/Git/CommitMessages
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and check
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https://wiki.openstack.org/wiki/GitCommitMessages
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for good examples.
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Coding Style
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============
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While much of the original codebase was written using [GNU's Coding Style][1],
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please try to follow this document for newly written code.
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For existing code you should probably try to not mix different code styles too much.
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This coding style is heavily inspired/copied from [phosh's Coding Style][2]
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which itself is mostly using [libhandy's Coding Style][3].
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These are the differences:
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- We're not picky about GTK+ style function argument indentation, that is
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having multiple arguments on one line is also o.k when there are only two arguments.
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- For callbacks we prefer the `on_<action>` pattern e.g.
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`on_feedback_ended ()` since this helps to keep the namespace
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clean.
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- Since we're not a library we usually use `G_DEFINE_TYPE` instead of
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`G_DEFINE_TYPE_WITH_PRIVATE` (except when we need a deriveable
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type) since it makes the rest of the code more compact.
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Source file layout
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------------------
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We use one file per GObject. It should be named like the GObject with
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the calls prefix, lowercase and '_' replaced by '-'. So a hypothetical
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`CallsThing` would go to `src/calls-thing.c`. The
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individual C files should be structured as (top to bottom of file):
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- License boilerplate
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```c
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/*
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* Copyright (C) year copyright holder
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*
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* SPDX-License-Identifier: GPL-3-or-later
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* Author: you <youremail@example.com>
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*/
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```
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- A log domain
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```C
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#define G_LOG_DOMAIN "CallsThing"
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```
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Usually just the GObject.
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- `#include`s:
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Calls configuration (if needed) goes first, then Calls includes, then glib/gtk, then generic C headers. These blocks
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are separated by newline and each sorted alphabetically:
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```
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#define G_LOG_DOMAIN "CallsThing"
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#include "calls-config.h"
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#include "calls-things.h"
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#include "calls-other-things.h"
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#include <gio/gdesktopappinfo.h>
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#include <glib/glib.h>
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#include <math.h>
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```
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This helps to detect missing headers in includes.
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- docstring
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- property enum
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```c
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enum {
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PROP_0,
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PROP_FOO,
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PROP_BAR,,
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LAST_PROP
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};
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static GParamSpec *props[LAST_PROP];
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```
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- signal enum
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```c
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enum {
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FOO_HAPPENED,
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BAR_TRIGGERED,
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N_SIGNALS
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};
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static guint signals[N_SIGNALS];
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```
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- type definitions
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```c
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typedef struct _CallsThing {
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GObject parent;
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...
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} CallsThing;
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G_DEFINE_TYPE (CallsThing, calls_thing, G_TYPE_OBJECT)
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```
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- private methods and callbacks (these can also go at convenient
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places above `calls_thing_constructed ()`
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- `calls_thing_set_properties ()`
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- `calls_thing_get_properties ()`
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- `calls_thing_constructed ()`
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- `calls_thing_dispose ()`
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- `calls_thing_finalize ()`
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- `calls_thing_class_init ()`
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- `calls_thing_init ()`
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- `calls_thing_new ()`
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- Public methods, all starting with the object name(i.e. `calls_thing_`)
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The reason public methods go at the bottom is that they have declarations in
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the header file and can thus be referenced from anywhere else in the source
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file.
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Try to avoid forward declarations where possible.
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[1]: https://www.gnu.org/prep/standards/standards.html#Formatting
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[2]: https://gitlab.gnome.org/World/Phosh/phosh/-/blob/main/HACKING.md#coding-style
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[3]: https://gitlab.gnome.org/GNOME/libhandy/-/blob/main/HACKING.md#coding-style
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