Add AUR Package

[Kasui92]

This issue proposes creating an AUR package for lancher to allow easy installation on Arch-based distributions. The goal is to provide a clean PKGBUILD, define all dependencies correctly, and ensure the installation/update process aligns with Arch packaging guidelines.

Anyone with experience in maintaining AUR packages is welcome to help review or contribute. Once completed, Arch users will be able to install and update lancher directly through their package manager.

[albibenni]

Ok so the main step is creating another repo for AUR (I think it's better that you do it yourself since it will be connected to the versioning and an AUR account).

The steps are:

1. create the ssh key for aur git server ssh-keygen -t ed25519 -C "aur" -f ~/.ssh/id_aur and create a config in .ssh for the key:

Host aur.archlinux.org
    User aur
    IdentityFile ~/.ssh/id_aur

2. create the account on aur and add the public key
3. git clone ssh://aur@aur.archlinux.org/lancher.git -- yes an empty repo, it will have the remote origin pointing to aur
4. create the following files inside the directory:

PKGBUILD

The first file is PKGBUILD which is the one explaining where is the repo and all info for the build:

# Maintainer: Your Name <your email>
pkgname=lancher-bin # Use -git if pulling from master, or just the name for releases
pkgver=1.0.0
pkgrel=1
pkgdesc="A minimal, local project-template manager written in Go"
arch=('x86_64' 'aarch64')
url="https://github.com/Kasui92/lancher"
license=('MIT')
depends=('glibc')
makedepends=('go')
source=("$pkgname-$pkgver.tar.gz::$url/archive/v$pkgver.tar.gz")
sha256sums=('PASTE_SHA256_HERE') # Generate with 'updpkgsums'

build() {
  cd "lancher-$pkgver"

  # Go build flags for Arch
  export CGO_CPPFLAGS="${CPPFLAGS}"
  export CGO_CFLAGS="${CFLAGS}"
  export CGO_CXXFLAGS="${CXXFLAGS}"
  export CGO_LDFLAGS="${LDFLAGS}"
  export GOFLAGS="-buildmode=pie -trimpath -ldflags=-linkmode=external -mod=readonly -modcacherw"

  go build -o lancher .
}

package() {
  cd "lancher-$pkgver"
  
  # install the binary
  install -Dm755 myapp "$pkgdir/usr/bin/myapp"
  
  # install the license (required by Arch policy)
  install -Dm644 LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
  
  # optional - install shell completions if your app generates them
  # install -Dm644 completions/lancher.bash "$pkgdir/usr/share/bash-completion/completions/lancher"
}

SRCINFO

and a second file .SRCINFO for a PKGBUILD summary (it's needed for validation, eg. wrong version fail AUR validation)
It is build by:
makepkg --printsrcinfo > .SRCINFO

Updates

Every time you update your app's version:

• Update pkgver in the PKGBUILD
• Update the checksums with updpkgsums
• Regenerate the .SRCINFO - same command as before
• Commit and push

[Kasui92]

@albibenni
First deploy on AUR!