Pack
====

Pack is a simple serialisation and deserialisation library for C.

Build health:

-   [![builds.sr.ht status](https://builds.sr.ht/~tk/pack/commits/alpine.yml.svg)](https://builds.sr.ht/~tk/pack/commits/alpine.yml?) - Alpine
-   [![builds.sr.ht status](https://builds.sr.ht/~tk/pack/commits/archlinux.yml.svg)](https://builds.sr.ht/~tk/pack/commits/archlinux.yml?) - Arch Linux
-   [![builds.sr.ht status](https://builds.sr.ht/~tk/pack/commits/freebsd.yml.svg)](https://builds.sr.ht/~tk/pack/commits/freebsd.yml?) - FreeBSD
-   [![builds.sr.ht status](https://builds.sr.ht/~tk/pack/commits/openbsd.yml.svg)](https://builds.sr.ht/~tk/pack/commits/openbsd.yml?) - OpenBSD

Dependencies
------------

Pack has no runtime dependencies. The following is a list of build dependencies:

-   An implementation of redo
    -   [Avery Pennarun's do][minimal-do] - Works for one-shot builds. Copy it
        to the source directory, make it executable and run it. For development,
        one of the other implementations is recommended.
    -   [Nils Dagsson Moskopp's redo][redo-sh] - Tested building and
        development. Slightly overzealous rebuilds. Performance issues with
        jobserver.
    -   [Jonathan de Boyne Pollard's redo][jdebp-redo] - Tested building and
        development. Bugs with jobserver. Uncommon definition of `$2`.
    -   [Avery Pennarun's redo][apenwarr-redo] - Tested for building. May have
        some bugs when used for development.
    -   [Leah Neukirchen's redo][leah-redo] - Tested for building.  Overzealous
        rebuilds but generally very fast.
-   A C11 compiler with GCC style parameters (clang works)
-   POSIX cat, find, rm, sed, sh and tr
-   xargs with support for the `-r` gnu extension
-   bash 4.4 or newer (parameter expansion transformations)
-   (optional) jq (for generating `compile_commands.json`)

[minimal-do]: https://raw.githubusercontent.com/apenwarr/redo/redo-0.42d/minimal/do
[redo-sh]: http://news.dieweltistgarnichtso.net/bin/redo-sh.html
[jdebp-redo]: https://jdebp.uk/Softwares/redo/
[apenwarr-redo]: https://github.com/apenwarr/redo
[leah-redo]: https://github.com/leahneukirchen/redo-c/

Compilation
-----------

Optionally run `./configure` (see `./configure -h` for options).

Some build hosts require calling `./configure` with `-B-lm` to pass `-lm` to the
linker for certain math.h functions.

Run `redo all` to build the library and tests.

### Cross Compilation

To cross compile, run `./configure` as normal and edit the resulting `config.rc`
to set `TCC` to the target compiler. Additional flags can be passed via the
arrays `TCFLAGS`, `TCPPFLAGS`, `TLDFLAGS`, and `TLDLIBS`. Host specific flags
can be passed via the corresponding `H<name>` arrays.

For example, to cross compile for windows using `i686-w64-mingw32-gcc` as the
target compiler and `clang` as the host compiler:

```
$ CC=clang ./configure
$ echo TCC=i686-w64-mingw32-gcc >>config.rc
$ redo all
```

Testing
-------

Run `./test` to run all the tests.

Installation
------------

Not implemented yet.

Development
-----------

Please configure with `-w` and ensure code compiles cleanly. Be aware that
different compiler versions can enable different warnings. If in doubt, ask.

If you use a tool such as `clangd` which makes use of `compile_commands.json`
then make sure you have `jq` installed and run `./configure` with `-f`.

Contributing
------------

Please email patches to
[~tk/pack-patches@lists.sr.ht](mailto:~tk/pack-patches@lists.sr.ht)
([archive](https://lists.sr.ht/~tk/pack-patches)).

If you've never used a mailing list for development, please
[read this](https://man.sr.ht/lists.sr.ht/#new-to-mailing-lists).

Please email feature requests to
[~tk/pack@todo.sr.ht](mailto:~tk/pack@todo.sr.ht) or use the
[web interface](https://todo.sr.ht/~tk/pack).

When dealing with any email based communication please follow
[email etiquette](https://man.sr.ht/lists.sr.ht/etiquette.md).

In general, stay on topic and respect differences in opinion and philosophy.

Bugs
----

Bugs are tracked and can be reported
[here](https://todo.sr.ht/~tk/pack?search=status%3Aopen%20label%3A%22bug%22).