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docs(CONTRIBUTING.md): add coding guidelines (moved from wiki)

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Zetok Zalbavar 2016-04-16 06:51:03 +01:00
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@ -131,3 +131,88 @@ Include every section of the body that is relevant for your commit.
**Breaking changes** should start with the phrase `BREAKING CHANGE:` with a
space or two newlines. The rest of the commit message is then used for this.
## Git config
*Not a requirement, just a friendly tip. :wink:*
It's nice when commits are being GPG-signed. Github has a few articles about
configuring & signing.
https://help.github.com/articles/signing-commits-using-gpg/
And *tl;dr* version:
```
gpg --gen-key
gpg --send-keys <your generated key ID>
git config --global commit.gpgsign true
```
# Coding Guidelines
Use `C++11`.
## Coding style
```C++
function()
{
1st_line;
2nd_line;
}
// if / while / for / switch
if ()
1_line;
else if ()
just_one_line;
else
each_condition;
// ↑ note space between last line of conditional code, and code outside of condition
if ()
{
1_line;
}
else if ()
{
what_if;
i_told_you;
}
else
{
that_there_are;
more_lines;
}
QObject* asterisksGoWithTheType;
uint8_t* array = new uint8_t[count];
// camelCase for variables, CamelCase for classes
QObject notToMentionThatWeUseCamelCase;
```
E.g. https://github.com/tux3/qTox/blob/master/src/misc/flowlayout.cpp
## No translatable HTML tags
Do not put HTML in UI files, or inside `tr()`. Instead, you can put put it in
C++ code in the following way, to make only user-facing text translatable:
```C++
someWidget->setTooltip(
QStringLiteral("<html><!-- some HTML text -->") + tr("Translatable text…") +
QStringLiteral("</html>");
```
## Limitations
### Filesystem
Windows' unbeaten beauty and clarity:
https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx
Symbols that should be forbidden for filenames under Windows:
`<` `>` `:` `"` `/` `\` `|` `?` `*`