Add initial packaging script (currently only for generating source PKGBUILD)

packaging/pkgbuild-git-stable.sh

@@ -0,0 +1,54 @@
+#!/bin/sh
+
+create_pkgbuild_git_stable() {
+    printf '\ngenerating PKGBUILD...\n'
+    local source="git+https://github.com/rwinkhart/MUTN.git#tag=v\${pkgver}"
+    printf "# Maintainer: Randall Winkhart <idgr at tutanota dot com>
+pkgname=mutn
+pkgver="$version"
+pkgrel="$revision"
+pkgdesc='A simple, self-hosted, SSH-synchronized password/note manager based on libmutton'
+arch=('x86_64' 'i686' 'i486' 'pentium4' 'aarch64' 'armv7h' 'riscv64')
+url='https://github.com/rwinkhart/MUTN'
+license=('MIT')
+makedepends=(go util-linux)
+optdepends=(
+    'wl-clipboard: Wayland clipboard support'
+    'xclip: X11 clipboard support'
+    'bash-completion: Bash completion support'
+)
+source=(\""$source"\")
+sha512sums=(SKIP)
+
+build() {
+    # determine microarchitecture feature level
+    case \$CARCH in
+        'x86_64')
+            lscpuOutput=\$(lscpu | grep Flags)
+            if [ -z \"\$(echo \$lscpuOutput | grep avx512f)\" ]; then
+                export GOAMD64=v4
+            elif [ -z \"\$(echo \$lscpuOutput | grep avx2)\" ]; then
+                export GOAMD64=v3
+            elif [ -z \"\$(echo \$lscpuOutput | grep sse4_2)\" ]; then
+                export GOAMD64=v2
+            else
+                export GOAMD64=v1
+            fi
+            ;;
+        # TODO check aarch64 feature level
+    esac
+
+    cd \${srcdir}/MUTN
+    CGO_ENABLED=1 go build -ldflags=\"-s -w\" -trimpath ./mutn.go
+}
+
+package() {
+    cd \${srcdir}/MUTN
+    install -Dm755 ./mutn \${pkgdir}/usr/bin/mutn
+    install -Dm644 ./LICENSE \${pkgdir}/usr/share/licenses/mutn/LICENSE
+    install -Dm644 ./completions/zsh/_mutn \${pkgdir}/usr/share/zsh/site-functions/_mutn
+    install -Dm644 ./completions/bash/mutn \${pkgdir}/usr/share/bash-completion/completions/mutn
+}
+" > output/PKGBUILD
+    printf '\nPKGBUILD generated\n\n'
+}