|
|
|
|
---
|
|
|
|
|
short-description: Code formatting
|
|
|
|
|
...
|
|
|
|
|
|
|
|
|
|
# clang-format
|
|
|
|
|
|
|
|
|
|
*Since 0.50.0*
|
|
|
|
|
|
|
|
|
|
When `clang-format` is installed and a `.clang-format` file is found at the main
|
|
|
|
|
project's root source directory, Meson automatically adds a `clang-format` target
|
|
|
|
|
that reformat all C and C++ files (currently only with Ninja backend).
|
|
|
|
|
|
|
|
|
|
```sh
|
|
|
|
|
ninja -C builddir clang-format
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
*Since 0.58.0*
|
|
|
|
|
|
|
|
|
|
It is possible to restrict files to be reformatted with optional
|
|
|
|
|
`.clang-format-include` and `.clang-format-ignore` files.
|
|
|
|
|
|
|
|
|
|
The file `.clang-format-include` contains a list of patterns matching the files
|
|
|
|
|
that will be reformatted. The `**` pattern matches this directory and all
|
|
|
|
|
subdirectories recursively. Empty lines and lines starting with `#` are ignored.
|
|
|
|
|
If `.clang-format-include` is not found, the pattern defaults to `**/*` which
|
|
|
|
|
means all files recursively in the source directory but has the disadvantage to
|
|
|
|
|
walk the whole source tree which could be slow in the case it contains lots of
|
|
|
|
|
files.
|
|
|
|
|
|
|
|
|
|
Example of `.clang-format-include` file:
|
|
|
|
|
```
|
|
|
|
|
# All files in src/ and its subdirectories
|
|
|
|
|
src/**/*
|
|
|
|
|
|
|
|
|
|
# All files in include/ but not its subdirectories
|
|
|
|
|
include/*
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
The file `.clang-format-ignore` contains a list of patterns matching the files
|
|
|
|
|
that will be excluded. Files matching the include list (see above) that match
|
|
|
|
|
one of the ignore pattern will not be reformatted. Unlike include patterns, ignore
|
|
|
|
|
patterns does not support `**` and a single `*` match any characters including
|
|
|
|
|
path separators. Empty lines and lines starting with `#` are ignored.
|
|
|
|
|
|
|
|
|
|
The build directory and file without a well known C or C++ suffix are always
|
|
|
|
|
ignored.
|
|
|
|
|
|
|
|
|
|
Example of `.clang-format-ignore` file:
|
|
|
|
|
```
|
|
|
|
|
# Skip C++ files in src/ directory
|
|
|
|
|
src/*.cpp
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
Note that `.clang-format-ignore` has the same format as used by
|
|
|
|
|
[`run-clang-format.py`](https://github.com/Sarcasm/run-clang-format).
|
|
|
|
|
|
|
|
|
|
A new target `clang-format-check` has been added. It returns an error code if
|
|
|
|
|
any file needs to be reformatted. This is intended to be used by CI.
|
|
|
|
|
|
|
|
|
|
*Since 0.60.0*
|
|
|
|
|
|
|
|
|
|
If `.clang-format-include` file is missing and source files are in a git
|
|
|
|
|
repository, only files tracked by git will be included.
|
