feat: build script for executables (#48)

bin/.gitignore

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+## Directory for the STIGMAN Watcher binaries
+
+# Content can be written here by executing:
+# $ ../build.sh
+#
+# This file hopes to prevent commits to this directory
+
+# Ignore everything in this directory
+*
+
+# Except this file
+!.gitignore

build.sh

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+#!/bin/bash
+
+# This file is used to build binaries on a Linux device. It is not tested elsewhere, yet.
+# Requires:
+# - Node.js and module "pkg" (npm install -g pkg)
+# - zip
+# - tar
+# - gpg, if you wish to produce detached signatures
+
+keyring=stig-manager.gpg 
+signing_key="nuwcdivnpt-bot@users.noreply.github.com"
+
+bin_dir=./bin
+dist_dir=./dist
+
+# stop the script if SIGINT received during any command
+trap 'exit 1' INT
+
+# Change to this script directory
+cd "$(dirname "$(realpath "$0")")"
+
+# Prepare
+[ ! -d "$bin_dir" ] && mkdir -p "$bin_dir"
+[ ! -d "$dist_dir" ] && mkdir -p "$dist_dir"
+rm -rf $bin_dir/*
+rm -rf $dist_dir/*
+printf "[BUILD_TASK] Fetching node_modules\n"
+rm -rf ./node_modules
+npm ci
+
+describe=$(git describe --tags | sed 's/\(.*\)-.*/\1/')
+printf "\n[BUILD_TASK] Using version string: $describe\n"
+
+# Make binaries
+printf "\n[BUILD_TASK] Building binaries in $bin_dir\n"
+pkg -C gzip --public --public-packages=* --no-bytecode pkg.config.json
+# Windows archive
+windows_archive=$dist_dir/stigman-watcher-win-$describe.zip
+printf "\n[BUILD_TASK] Creating $windows_archive\n"
+zip --junk-paths $windows_archive ./dotenv-example $bin_dir/stigman-watcher-win.exe
+[[ $1 == "--sign" ]] && gpg --keyring $keyring --default-key $signing_key --armor --detach-sig  $windows_archive
+# Linux archive
+linux_archive=$dist_dir/stigman-watcher-linux-$describe.tar.gz
+printf "\n[BUILD_TASK] Creating $linux_archive\n"
+tar -czvf $linux_archive --xform='s|^|stigman-watcher/|S' -C . dotenv-example -C $bin_dir stigman-watcher-linuxstatic
+[[ $1 == "--sign" ]] && gpg --keyring $keyring --default-key $signing_key --armor --detach-sig $linux_archive
+
+printf "\n[BUILD_TASK] Done\n"

dist/.gitignore

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+## Directory for the STIGMAN Watcher distribution archives
+
+# Content can be written here by executing:
+# $ ../build.sh
+#
+# This file hopes to prevent commits to this directory
+
+# Ignore everything in this directory
+*
+
+# Except this file
+!.gitignore

pkg.config.json

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+{
+    "name": "stigman-watcher",
+    "bin": "./index.js",
+    "pkg": {
+        "targets": [ "node18-win", "node18-linuxstatic" ],
+        "outputPath": "./bin"
+    }
+}