Improve packaging and distribution (see #1)

.github/dependabot.yml

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+version: 2
+updates:
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+      interval: "weekly"

.github/workflows/build.yml

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+name: Build
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - uses: actions/checkout@v4
+
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+
+    - name: Install
+      run: pip install .
+
+    - name: Show all plugins
+      run: |
+        nagios_d3s_check_health || true
+        echo
+        nagios_d3s_check_memory || true
+        echo
+        nagios_d3s_check_os_updates || true
+        echo
+        nagios_d3s_check_systemd_service --service sshd || true

.github/workflows/package.yml

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+name: Linux packages
+
+on: [push, pull_request]
+
+env:
+  PACKAGE_NAME: d3s-nagios-plugins-git
+  PACKAGE_MAINTAINER: vhotspur
+  PACKAGE_SUMMARY: "Collection of various Nagios plugins"
+  PACKAGE_VERSION: 1.0.0
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+
+      - name: Prepare install for Debian
+        run: |
+          pip install --root ${{github.workspace}}/pkg-deb --prefix /usr .
+          find ${{github.workspace}}/pkg-deb
+
+      - uses: jiro4989/build-deb-action@v3
+        with:
+          package_root: ${{github.workspace}}/pkg-deb
+          package: ${{ env.PACKAGE_NAME }}
+          maintainer: ${{ env.PACKAGE_MAINTAINER }}
+          desc: '${{ env.PACKAGE_SUMMARY }}'
+          version: '${{ env.PACKAGE_VERSION }}'
+          arch: 'amd64'
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: deb-package
+          path: |
+            ./d3s*.deb

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+env:
+  PACKAGE_NAME: d3s-nagios-plugins
+  PACKAGE_MAINTAINER: vhotspur
+  PACKAGE_SUMMARY: "Collection of various Nagios plugins"
+  PACKAGE_VERSION: 1.0.0
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+
+      - name: Prepare install for Debian
+        run: |
+          pip install --root ${{github.workspace}}/pkg-deb --prefix /usr .
+          find ${{github.workspace}}/pkg-deb
+
+      - uses: jiro4989/build-deb-action@v3
+        with:
+          package_root: ${{github.workspace}}/pkg-deb
+          package: ${{ env.PACKAGE_NAME }}
+          maintainer: ${{ env.PACKAGE_MAINTAINER }}
+          desc: '${{ env.PACKAGE_SUMMARY }}'
+          version: '${{ env.PACKAGE_VERSION }}'
+          arch: 'amd64'
+
+      - name: Setup release notes
+        run: ./contrib/get-release-notes.sh ${{ env.PACKAGE_VERSION }} >gh-release-body.txt
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          body_path: gh-release-body.txt
+          files: |
+            msim*.deb
+            msim*.rpm

CHANGELOG.md

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+# D3S Nagios Plugins change log
+
+All notable changes to D3S Nagios Plugins will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Unreleased
+
+### Fixed
+
+### Added
+
+### Changed
+
+### Deprecated
+
+### Removed
+
+
+## v1.0.0 - 2024-03-20
+
+### Changed
+
+* Packaging setup (@vhotspur)
+* Move changelog to a more structured format (@vhotspur)
+
+### Added
+
+* Automated releases (@vhotspur)

contrib/get-release-notes.sh

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+#!/bin/bash
+
+# Get release notes from change log file.
+
+set -ueo pipefail
+
+get_changelog_for() {
+    # Find text between header lines and remove those header lines
+    sed -n -e "/^## v${1} - 20[0-9][0-9]-[01][0-9]-[0123][0-9]$/,/^## v/{/^## v/d;p}"
+}
+
+strip_empty_lines() {
+    # https://unix.stackexchange.com/a/552195
+    sed -e '/./,$!d' -e :a -e '/^\n*$/{$d;N;ba' -e '}'
+}
+
+get_changelog_for "$1" < "CHANGELOG.md" | strip_empty_lines

pyproject.toml

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+[build-system]
+requires = ["setuptools>=42"]
+build-backend = "setuptools.build_meta"
+

setup.cfg

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+[metadata]
+name = d3s-nagios-plugins
+version = 1.0
+author = Vojtech Horky
+author_email = horky@d3s.mff.cuni.cz
+description = Collection of various Nagios plugins
+long_description = file: README.md
+long_description_content_type = text/markdown
+url = https://github.com/d-iii-s/d3s-nagios-plugins
+keywords = Nagios monitoring
+classifiers =
+    License :: OSI Approved :: Apache 2 License
+
+[options]
+package_dir =
+    = src
+packages = find:
+python_requires = >=3.8
+zip_safe = False
+
+[options.packages.find]
+where = src
+
+[options.entry_points]
+console_scripts =
+    nagios_d3s_check_health = d3s.nagios_plugins.check_health:main
+    nagios_d3s_check_memory = d3s.nagios_plugins.check_memory:main
+    nagios_d3s_check_os_updates = d3s.nagios_plugins.check_os_updates:main
+    nagios_d3s_check_systemd_service = d3s.nagios_plugins.check_systemd_service:main