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

.gitignore

@@ -2,3 +2,4 @@
 /mutn.exe
 /libmuttonserver
 /libmuttonserver.exe
+output

packaging/main.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# get version number from backend TODO embed Go code that reads the value of LibmuttonVersion
+version=$(grep 'LibmuttonVersion = "' ../src/backend/1globals.go | cut -c22-26)
+
+# get revision number from user input, fallback to 1 if not provided
+if [ -z "$2" ]; then
+    revision=1
+else
+    revision="$2"
+fi
+
+# ensure output directory exists
+mkdir -p ./output
+
+case "$1" in
+    pkgbuild-git-stable)
+        . ./pkgbuild-git-stable.sh
+        create_pkgbuild_git_stable
+        ;;
+    *)
+    printf '\nusage: package.sh [target] <revision>\n\ntargets: pkgbuild-git-stable\n\n'
+    ;;
+esac

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'
+}

wiki/MUTN/completions.md

@@ -1,7 +1,7 @@
 ## Shell Completions Troubleshooting
 [Shell completions are provided for ZSH, Bash, and PowerShell 7+](https://github.com/rwinkhart/MUTN/tree/main/completions).
 ### ZSH completions not working?
-Make sure your ~/.zshrc contains the following (if sourcing from default completions location, usually `/usr/share/zsh/functions/Completion/Unix/_mutn`):
+Make sure your ~/.zshrc contains the following (if sourcing from default completions location, usually `/usr/share/zsh/site-functions/_mutn`):
 ```shell
 autoload -Uz compinit && compinit
 ```