build: Added AUR/ArchLinux support (#566)

* store version in file

* use version file in release workflow

* use new version file in build workflow

* ArchLinux build

* setup cache for ArchLinux

* add version check in release CI

* edit step description

* update pkgbuild to install correctly

* AUR deploy

* rename version file to VERSION

* install all default plugins in PKGBUILD

* Added emojis to build workflow

* Added emojis to release workflow

* separate update packages and install dependencies in two steps

* fix Release CI

* add md5Sums to PKGBUILD

* make PKGBUILD point to the official repo + set v in tag

dist/Arch/PKGBUILD

@@ -0,0 +1,38 @@
+# Maintainer: iTrooz_ <itrooz at protonmail dot com>
+pkgname=imhex-bin
+pkgver=%version%
+pkgrel=1
+pkgdesc="A Hex Editor for Reverse Engineers, Programmers and people who value their retinas when working at 3 AM. "
+arch=("x86_64")
+url="https://github.com/WerWolv/ImHex"
+repo=$url
+license=('GPL 2.0')
+groups=()
+depends=(glfw mbedtls python freetype2 libglvnd gtk3)
+makedepends=(git)
+checkdepends=()
+optdepends=()
+provides=(imhex)
+conflicts=(imhex)
+replaces=()
+backup=()
+options=()
+source=($repo"/releases/download/v$pkgver/imhex-$pkgver-ArchLinux.pkg.tar.zst")
+noextract=()
+md5sums=(SKIP)
+validpgpkeys=()
+
+package() {
+    tar -xf imhex-$pkgver-ArchLinux.pkg.tar.zst
+
+    install -DT $srcdir/usr/bin/imhex $pkgdir/usr/bin/imhex
+    install -DT $srcdir/usr/lib/libimhex.so $pkgdir/usr/lib/libimhex.so
+
+    for plugin in $srcdir/usr/share/imhex/plugins/*.hexplug;
+    do
+	    install -DT $plugin $pkgdir/usr/share/imhex/plugins/`basename $plugin`
+    done
+
+	cp -r $srcdir/usr/share/imhex/{constants,encodings,includes,magic,patterns} $pkgdir/usr/share/imhex
+    install -d $pkgdir/usr/share/imhex
+}