Add middleclick-autoscroll

Middle-click autoscroll for every Chromium-based application on the system -
Electron and CEF applications, Chromium-based browsers, Flatpaks, Spotify and
Steam - plus anything installed later. Built from source out of the upstream
release tarball, like cachy-auto-update.

middleclick-autoscroll/PKGBUILD

@@ -0,0 +1,30 @@
+# Maintainer: Felitendo
+# This PKGBUILD is updated automatically:
+# https://github.com/Felitendo/PKGBUILDS
+
+pkgname=middleclick-autoscroll
+pkgver=1.0.0
+pkgrel=1
+pkgdesc="Middle-click autoscroll for Chromium-based applications - Electron, CEF, Flatpaks, Spotify and Steam included"
+arch=('any')
+url="https://github.com/Felitendo/middleclick-autoscroll"
+license=('GPL-3.0-or-later')
+depends=('bash' 'systemd' 'coreutils' 'gawk' 'grep' 'sed' 'gettext')
+makedepends=('gettext' 'scdoc')
+optdepends=('flatpak: cover Flatpak applications too'
+            'spotify-launcher: cover the official Spotify client'
+            'steam: cover the Steam interface'
+            'desktop-file-utils: refresh the desktop database after a change')
+install="${pkgname}.install"
+source=("${pkgname}-${pkgver}.tar.gz::${url}/archive/refs/tags/v${pkgver}.tar.gz")
+sha256sums=('aac78f97d6c9261f5a383016830e5e6fd2229a62dcdbfac3bddce363021704e4')
+
+build() {
+  # pass the version being packaged so `middleclick-autoscroll --version`
+  # cannot drift away from pkgver
+  make -C "${pkgname}-${pkgver}" VERSION="$pkgver"
+}
+
+package() {
+  make -C "${pkgname}-${pkgver}" VERSION="$pkgver" DESTDIR="$pkgdir" install
+}