yay/README.md

# Yay

Yet Another Yogurt - An AUR Helper Written in Go

#### Packages

[![yay](https://img.shields.io/aur/version/yay.svg?label=yay)](https://aur.archlinux.org/packages/yay/) [![yay-bin](https://img.shields.io/aur/version/yay-bin.svg?label=yay-bin)](https://aur.archlinux.org/packages/yay-bin/) [![yay-git](https://img.shields.io/aur/version/yay-git.svg?label=yay-git)](https://aur.archlinux.org/packages/yay-git/) [![GitHub license](https://img.shields.io/github/license/jguer/yay.svg)](https://github.com/Jguer/yay/blob/master/LICENSE)  

## Objectives

There's a point in everyone's life when you feel the need to write an AUR helper because there are only about 20 of them.
So say hi to 20+1.

Yay is based on the design of [yaourt](https://github.com/archlinuxfr/yaourt), [apacman](https://github.com/oshazard/apacman) and [pacaur](https://github.com/rmarquis/pacaur). It is developed with these objectives in mind:

* Provide an interface for pacman
* Yaourt-style interactive search/install
* Minimal dependencies
* Minimize user input
* Know when git packages are due for upgrades

## Features

* Perform advanced dependency solving
* Download PKGBUILDs from ABS or AUR
* Tab-complete the AUR
* Query user up-front for all input (prior to starting builds)
* Narrow search terms (`yay linux header` will first search `linux` and then narrow on `header`)
* Find matching package providers during search and allow selection
* Remove make dependencies at the end of the build process
* Run without sourcing PKGBUILD

## Installation

If you are migrating from another AUR helper, you can simply install Yay with that helper.

Alternatively, the initial installation of Yay can be done by cloning the PKGBUILD and
building with makepkg:
```sh
git clone https://aur.archlinux.org/yay.git
cd yay
makepkg -si
```

## Support

All support related to Yay should be requested via GitHub issues. Since Yay is not
officially supported by Arch Linux, support should not be sought out on the
forums, AUR comments or other official channels.

A broken AUR package should be reported as a comment on the package's AUR page.
A package may only be considered broken if it fails to build with makepkg.
Reports should be made using makepkg and include the full output as well as any
other relevant information. Never make reports using Yay or any other external
tools.

## Contributing

Contributors are always welcome!

If you plan to make any large changes or changes that may not be 100% agreed
on, we suggest opening an issue detailing your ideas first.

Otherwise send us a pull request and we will be happy to review it.

### Dependencies

Yay depends on:

* go (make only)
* git
* base-devel

Note: Yay also depends on a few other projects (as vendored dependencies). These
projects are stored in `vendor/`, are built into yay at build time, and do not
need to be installed separately. These files are managed by
[dep](https://github.com/golang/dep) and should not be modified manually.

Following are the dependencies managed under dep:

* https://github.com/Jguer/go-alpm
* https://github.com/Morganamilo/go-srcinfo
* https://github.com/Morganamilo/go-pacmanconf
* https://github.com/mikkeloscar/aur

### Building

Run `make` to build Yay. This command will generate a binary called `yay` in
the same directory as the Makefile.

Note: Yay's Makefile sources its dependencies from `vendor/`. When
building manually, dependencies will instead be sourced from `GOPATH`. To
build against `vendor/` you must specify `-mod=vendor` in the build command.

### Code Style

All code should be formatted through `go fmt`. This tool will automatically
format code for you. We recommend, however, that you write code in the proper
style and use `go fmt` only to catch mistakes.

### Testing

Run `make test` to test Yay. This command will verify that the code is
formatted correctly, run the code through `go vet`, and run unit tests.

## Frequently Asked Questions

#### Yay does not display colored output. How do I fix it?
  Make sure you have the `Color` option in your `/etc/pacman.conf`
  (see issue [#123](https://github.com/Jguer/yay/issues/123)).

#### Yay is not prompting to skip packages during system upgrade.
  The default behavior was changed after
  [v8.918](https://github.com/Jguer/yay/releases/tag/v8.918)
  (see [3bdb534](https://github.com/Jguer/yay/commit/3bdb5343218d99d40f8a449b887348611f6bdbfc)
  and issue [#554](https://github.com/Jguer/yay/issues/554)).
  To restore the package-skip behavior use `--combinedupgrade` (make
  it permanent by appending `--save`). Note: skipping packages will leave your
  system in a
  [partially-upgraded state](https://wiki.archlinux.org/index.php/System_maintenance#Partial_upgrades_are_unsupported).

#### Sometimes diffs are printed to the terminal, and other times they are paged via less. How do I fix this?
  Yay uses `git diff` to display diffs, which by default tells less not to
  page if the output can fit into one terminal length. This behavior can be
  overridden by exporting your own flags (`export LESS=SRX`).

#### Yay is not asking me to edit PKGBUILDS, and I don't like the diff menu! What can I do?
  `yay --editmenu --nodiffmenu --save`

#### How can I tell Yay to act only on AUR packages, or only on repo packages?
  `yay -{OPERATION} --aur`
  `yay -{OPERATION} --repo`

#### An `Out Of Date AUR Packages` message is displayed. Why doesn't Yay update them?
  This message does not mean that updated AUR packages are available. It means
  the packages have been flagged out of date on the AUR, but
  their maintainers have not yet updated the `PKGBUILD`s
  (see [outdated AUR packages](https://wiki.archlinux.org/index.php/Arch_User_Repository#Foo_in_the_AUR_is_outdated.3B_what_should_I_do.3F)).

#### Yay doesn't install dependencies added to a PKGBUILD during installation.
  Yay resolves all dependencies ahead of time. You are free to edit the
  PKGBUILD in any way, but any problems you cause are your own and should not be
  reported unless they can be reproduced with the original PKGBUILD.

## Examples of Custom Operations

`yay <Search Term>`  
&nbsp; &nbsp; &nbsp; &nbsp; Present package-installation selection menu.

`yay -Ps`  
&nbsp; &nbsp; &nbsp; &nbsp; Print system statistics.

`yay -Yc`  
&nbsp; &nbsp; &nbsp; &nbsp; Clean unneeded dependencies.

`yay -G <AUR Package>`  
&nbsp; &nbsp; &nbsp; &nbsp; Download PKGBUILD from ABS or AUR.

`yay -Y --gendb`  
&nbsp; &nbsp; &nbsp; &nbsp; Generate development package database used for devel update.

`yay -Syu --devel --timeupdate`  
&nbsp; &nbsp; &nbsp; &nbsp; Perform system upgrade, but also check for development package updates and use  
&nbsp; &nbsp; &nbsp; &nbsp; PKGBUILD modification time (not version number) to determine update.

## Images

<img src="https://cdn.rawgit.com/Jguer/jguer.github.io/5412b8d6/yay/yay-ps.png" width="450">
<img src="https://cdn.rawgit.com/Jguer/jguer.github.io/5412b8d6/yay/yayupgrade.png" width="450">
<img src="https://cdn.rawgit.com/Jguer/jguer.github.io/5412b8d6/yay/yaysearch.png" width="450">