chore(changelog): update changelog for v0.2.0

- Introduces a Bash script to install the systemd-timer binary
- Detects OS and architecture to download the appropriate binary
- Verifies the binary using SHA256 checksum for security
- Supports installation with or without sudo privileges

.gitea/workflows/upload-assets.yml

@@ -0,0 +1,44 @@
+name: Upload Assets
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  upload-assets:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        include:
+          - target: linux
+            arch: amd64
+          - target: linux
+            arch: arm64
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.release.tag_name }}
+          fetch-depth: 0
+
+      - name: Get Release ID from tag
+        run: .gitea/scripts/get-release-id.sh "${{ github.event.release.tag_name }}"
+
+      - uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+
+      - name: Build ${{ matrix.target }}-${{ matrix.arch }}
+        run: deno task build:${{ matrix.arch }}
+
+      - name: Generate SHA256 for ${{ matrix.target }}-${{ matrix.arch }}
+        run: |
+          FILE="./dist/systemd-timer-${{ matrix.target }}-${{ matrix.arch }}"
+          sha256sum "$FILE" > "$FILE.sha256"
+
+      - name: Upload binary for ${{ matrix.target }}-${{ matrix.arch }}
+        run: .gitea/scripts/upload-asset.sh ./dist/systemd-timer-${{ matrix.target }}-${{ matrix.arch }} systemd-timer-${{ matrix.target }}-${{ matrix.arch }}
+
+      - name: Upload SHA256 for ${{ matrix.target }}-${{ matrix.arch }}
+        run: .gitea/scripts/upload-asset.sh ./dist/systemd-timer-${{ matrix.target }}-${{ matrix.arch }}.sha256 systemd-timer-${{ matrix.target }}-${{ matrix.arch }}.sha256

.vscode/settings.json

@@ -0,0 +1,15 @@
+{
+    "workbench.colorCustomizations": {
+        "activityBar.activeBackground": "#d48282",
+        "activityBar.background": "#d48282",
+        "activityBar.foreground": "#15202b",
+        "activityBar.inactiveForeground": "#15202b99",
+        "activityBarBadge.background": "#b8e7b8",
+        "activityBarBadge.foreground": "#15202b"
+    },
+    "peacock.color": "#c75c5c",
+    "exportall.config.folderListener": [
+        "/src/utils",
+        "/src/types"
+    ]
+}

CHANGELOG.md

@@ -0,0 +1,58 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [0.2.0](https://git.0xmax42.io/maxp/systemd-timer/compare/v0.1.0..v0.2.0) - 2025-05-22
+
+### 🚀 Features
+
+- *(scripts)* Add installation script for systemd-timer binary - ([264b43c](https://git.0xmax42.io/maxp/systemd-timer/commit/264b43c9a667d344e27cca4ac2f17d7a4a25bffc))
+- *(workflows)* Add matrix build and SHA256 generation for releases - ([118e4e5](https://git.0xmax42.io/maxp/systemd-timer/commit/118e4e5a867a42c0d79efcc3b2a4db188affedec))
+- *(tasks)* Add build tasks for amd64 and arm64 targets - ([01898a3](https://git.0xmax42.io/maxp/systemd-timer/commit/01898a3a8e094dfbbf981ab6f1cf38d52f60ef5d))
+
+### 🐛 Bug Fixes
+
+- *(utils)* Handle file write failures with rollback - ([bd71b8e](https://git.0xmax42.io/maxp/systemd-timer/commit/bd71b8ee14a1856f1adaaaea198c8467b1a00d24))
+
+### 📚 Documentation
+
+- *(readme)* Add project time badge - ([a288dbc](https://git.0xmax42.io/maxp/systemd-timer/commit/a288dbc140fefbc46745f70cdcd71148802fdabf))
+
+## [0.1.0] - 2025-05-21
+
+### 🚀 Features
+
+- *(workflows)* Add release asset upload workflow - ([1012ca5](https://git.0xmax42.io/maxp/systemd-timer/commit/1012ca53781c36131a8b7aa43a9134f7b8565599))
+- *(cli)* Use dynamic version retrieval - ([403e047](https://git.0xmax42.io/maxp/systemd-timer/commit/403e047c0c376229244a5605d5c52eb1699acd4a))
+- *(utils)* Add version retrieval utility - ([56fb554](https://git.0xmax42.io/maxp/systemd-timer/commit/56fb554f132a53d74b2e9a1a02cc973c5420e73c))
+- *(generator)* Add systemctl usage instructions - ([f81bb53](https://git.0xmax42.io/maxp/systemd-timer/commit/f81bb533536810fc34656d572369b94ab669a181))
+- *(cli)* Add command to generate systemd unit files - ([97dc3fe](https://git.0xmax42.io/maxp/systemd-timer/commit/97dc3fe23acf2c35053aced7b34918bab7778c35))
+- *(utils)* Export utility functions for filesystem and naming - ([428e849](https://git.0xmax42.io/maxp/systemd-timer/commit/428e84927f8a9a379fa014ea763dd61115be34d6))
+- *(types)* Add TimerOptions interface for timer configuration - ([ba4b933](https://git.0xmax42.io/maxp/systemd-timer/commit/ba4b933f78c48a52b1c199fe28dc82d7ebabd7fe))
+- *(cli)* Add entry point for CLI commands - ([d5a383a](https://git.0xmax42.io/maxp/systemd-timer/commit/d5a383a62c965b60de7429ac1cb89f02639935f6))
+- *(utils)* Add function to derive sanitized job names - ([9539fe0](https://git.0xmax42.io/maxp/systemd-timer/commit/9539fe053245e9fea10ceda0e46fe61e9de80797))
+
+### 🚜 Refactor
+
+- *(utils)* Update import path for TimerOptions - ([316f3af](https://git.0xmax42.io/maxp/systemd-timer/commit/316f3af04ef7fe4c08963cfe3ad7780ed3bc262c))
+
+### 📚 Documentation
+
+- Add README for systemd-timer CLI tool - ([db1f56c](https://git.0xmax42.io/maxp/systemd-timer/commit/db1f56c539309b8a02adff114d765c725ac5ff8a))
+- Add MIT license file - ([e1cd5df](https://git.0xmax42.io/maxp/systemd-timer/commit/e1cd5dfd353c7cd7ca770daae5fc40405e461d1d))
+
+### 🧪 Testing
+
+- *(generate)* Add unit tests for service and timer generation - ([569b14d](https://git.0xmax42.io/maxp/systemd-timer/commit/569b14d57432589107a0f33e52881b605c5f79f9))
+- *(utils)* Add unit tests for systemd file handling - ([ef2ac41](https://git.0xmax42.io/maxp/systemd-timer/commit/ef2ac416d92f59efe3390317af46e943549adc47))
+
+### ⚙️ Miscellaneous Tasks
+
+- *(tasks)* Include version file in build process - ([6e00e89](https://git.0xmax42.io/maxp/systemd-timer/commit/6e00e89bb086672b9c3276ffeebcb1ded28c836f))
+- Add VSCode settings for color customizations and folder listener - ([6608f48](https://git.0xmax42.io/maxp/systemd-timer/commit/6608f488405adefc7993f47a137a824e5de62154))
+- *(config)* Add deno configuration and lockfile - ([0b72050](https://git.0xmax42.io/maxp/systemd-timer/commit/0b720500e0fe34db087b3277c38fa6bb07875e80))
+- Add automated release workflow and scripts for version management - ([a058e7b](https://git.0xmax42.io/maxp/systemd-timer/commit/a058e7b6838d41a98f3269db9a9d1e31f752121f))
+- *(gitignore)* Add dist/ and .env files to ignore list - ([2da372d](https://git.0xmax42.io/maxp/systemd-timer/commit/2da372d20dd0e023feb7e2da391dd0971da6a73d))
+- *(gitignore)* Add common build and coverage directories - ([2990af3](https://git.0xmax42.io/maxp/systemd-timer/commit/2990af3628b036c1d61daaf3d8efd3d2f0d4b761))
+
+

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 0xMax42
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,91 @@
+# systemd-timer
+
+![Project time](https://waka.0xmax42.io/api/badge/0XMax42/interval:today/project:systemd-timer?label=Project%20time)
+
+Ein einfaches CLI-Tool zum schnellen Erzeugen von systemd `.service` und `.timer` Units – als Ersatz oder moderne Ergänzung zu klassischen `cron`-Jobs.
+
+---
+
+## 🚀 Features
+
+- Erzeugt `.service` und `.timer` Dateien per CLI
+- Unterstützt `--user` Timer (für `~/.config/systemd/user/`)
+- Optionales Logging (`StandardOutput/StandardError`)
+- Unterstützt:
+  - `--calendar`
+  - `--exec`
+  - `--after`
+  - `--environment`
+  - `--output`
+  - `--dry-run`
+- Getestet und typisiert mit Deno + Cliffy
+
+---
+
+## 🛠️ Installation
+
+```bash
+git clone https://git.0xmax42.io/maxp/systemd-timer.git
+cd systemd-timer
+deno task build
+
+# Binary liegt nun unter ./systemd-timer
+./systemd-timer --help
+```
+
+---
+
+## 📦 Beispiel
+
+```bash
+./systemd-timer create \
+  --exec "/usr/local/bin/backup.sh" \
+  --calendar "Mon..Fri 02:00" \
+  --description "Backup Job" \
+  --user \
+  --logfile "/var/log/backup.log"
+```
+
+Erzeugt:
+- `~/.config/systemd/user/backup.service`
+- `~/.config/systemd/user/backup.timer`
+
+Anschließend aktivieren:
+
+```bash
+systemctl --user daemon-reload
+systemctl --user enable --now backup.timer
+```
+
+---
+
+## 🧪 Tests ausführen
+
+```bash
+deno task test
+```
+
+---
+
+## 🧰 Entwickeln
+
+```bash
+deno task start create --exec "/bin/true" --calendar "daily" --dry-run
+```
+
+---
+
+## 🔒 Rechte / Flags
+
+Das Tool benötigt beim Ausführen bzw. Kompilieren:
+
+- `--allow-env` (für `$HOME`)
+- `--allow-write` (zum Schreiben von `.service`/`.timer`)
+
+Beim Entwickeln wird meist `-A` (allow all) verwendet.
+
+---
+
+## 📝 Lizenz
+
+[MIT License](LICENSE)

VERSION

@@ -0,0 +1 @@
+0.2.0

deno.jsonc

@@ -2,7 +2,8 @@
     "tasks": {
         "start": "deno run -A src/mod.ts",
         "test": "deno test -A --coverage **/__tests__/*.test.ts",
-        "build": "deno compile --allow-env --allow-write --output dist/systemd-timer src/mod.ts"
+        "build:amd64": "deno compile --target x86_64-unknown-linux-gnu --include=VERSION --allow-env --allow-write --output dist/systemd-timer-linux-amd64 src/mod.ts",
+        "build:arm64": "deno compile --target aarch64-unknown-linux-gnu --include=VERSION --allow-env --allow-write --output dist/systemd-timer-linux-arm64 src/mod.ts"
     },
     "compilerOptions": {},
     "fmt": {

scripts/install.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# === Konfiguration ===
+REPO_URL="https://git.0xmax42.io/maxp/systemd-timer/releases/download/latest"
+BINARY_NAME="systemd-timer"
+INSTALL_PATH="/usr/local/bin"
+
+# === Systemarchitektur erkennen ===
+ARCH=$(uname -m)
+case "$ARCH" in
+  x86_64) ARCH="amd64" ;;
+  aarch64 | arm64) ARCH="arm64" ;;
+  *) echo "Unsupported architecture: $ARCH" >&2; exit 1 ;;
+esac
+
+OS=$(uname -s)
+case "$OS" in
+  Linux) OS="linux" ;;
+  *) echo "Unsupported OS: $OS" >&2; exit 1 ;;
+esac
+
+# === Download-URL zusammensetzen ===
+BINARY_FILE="${BINARY_NAME}-${OS}-${ARCH}"
+DOWNLOAD_URL="${REPO_URL}/${BINARY_FILE}"
+
+echo "📦 Installing ${BINARY_NAME} for ${OS}/${ARCH}..."
+echo "🌐 Downloading from: ${DOWNLOAD_URL}"
+
+# === Binary herunterladen ===
+TMP_FILE=$(mktemp)
+curl -fsSL "${DOWNLOAD_URL}" -o "${TMP_FILE}"
+chmod +x "${TMP_FILE}"
+
+# === Optional: SHA256-Check ===
+curl -fsSL "${DOWNLOAD_URL}.sha256" -o "${TMP_FILE}.sha256"
+echo "$(cat ${TMP_FILE}.sha256)  ${TMP_FILE}" | sha256sum -c -
+
+# === Installation ===
+echo "🚀 Installing to ${INSTALL_PATH}/${BINARY_NAME}"
+if [ -w "$INSTALL_PATH" ]; then
+  install -m 755 "${TMP_FILE}" "${INSTALL_PATH}/${BINARY_NAME}"
+else
+  sudo install -m 755 "${TMP_FILE}" "${INSTALL_PATH}/${BINARY_NAME}"
+fi
+
+echo "✅ Installation complete: $(command -v ${BINARY_NAME})"
+"${BINARY_NAME}" --version || true

src/cli/create.ts

@@ -0,0 +1,39 @@
+import { Command } from '@cliffy/command';
+import { generateUnitFiles } from '../templates/unit-generator.ts';
+import { TimerOptions } from '../types/options.ts';
+
+export const createCommand = new Command()
+    .description('Erzeugt eine systemd .service und .timer Unit')
+    .option(
+        '--name <name:string>',
+        'Name der Unit-Dateien (optional, wird sonst aus dem Exec generiert)',
+    )
+    .option(
+        '--exec <cmd:string>',
+        'Kommando, das durch systemd ausgeführt werden soll',
+        { required: true },
+    )
+    .option('--calendar <time:string>', 'OnCalendar-Ausdruck für den Timer', {
+        required: true,
+    })
+    .option('--description <desc:string>', 'Beschreibung des Timers')
+    .option('--user', 'Erstellt die Unit als User-Timer')
+    .option('--output <dir:string>', 'Zielverzeichnis der Unit-Dateien')
+    .option(
+        '--after <target:string>',
+        'Optionales After= für die Service-Unit',
+        { collect: true },
+    )
+    .option(
+        '--environment <env:string>',
+        'Environment-Variablen im Format KEY=VALUE',
+        { collect: true },
+    )
+    .option(
+        '--logfile <file:string>',
+        'Dateipfad für Log-Ausgabe (stdout/stderr)',
+    )
+    .option('--dry-run', 'Gibt die Unit-Dateien nur aus, ohne sie zu schreiben')
+    .action(async (options: TimerOptions) => {
+        await generateUnitFiles(options);
+    });

src/cli/main.ts

@@ -0,0 +1,10 @@
+import { Command } from '@cliffy/command';
+import { createCommand } from './create.ts';
+import { getVersion } from '../utils/mod.ts';
+
+await new Command()
+    .name('systemd-timer')
+    .version(await getVersion())
+    .description('CLI Tool zum Erzeugen von systemd .timer und .service Units')
+    .command('create', createCommand)
+    .parse(Deno.args);

src/mod.ts

@@ -0,0 +1,5 @@
+import './cli/main.ts';
+
+// ────────────────────────────────────────────────
+// Entry Point for CLI
+// Delegates to src/cli/main.ts, which registers all CLI commands

src/templates/__tests__/generate.test.ts

@@ -0,0 +1,55 @@
+import {
+    assertStringIncludes,
+} from 'https://deno.land/std@0.224.0/assert/mod.ts';
+import { TimerOptions } from '../../types/mod.ts';
+import { generateUnits } from '../unit-generator.ts';
+
+Deno.test('generateUnits erzeugt Basis-Service und Timer korrekt', () => {
+    const opts: TimerOptions = {
+        exec: '/usr/bin/my-script',
+        calendar: 'daily',
+    };
+    const { serviceUnit, timerUnit } = generateUnits('myjob', opts);
+
+    assertStringIncludes(serviceUnit, 'ExecStart=/usr/bin/my-script');
+    assertStringIncludes(timerUnit, 'OnCalendar=daily');
+    assertStringIncludes(timerUnit, '[Install]');
+});
+
+Deno.test('generateUnits setzt Beschreibung aus Option', () => {
+    const opts: TimerOptions = {
+        exec: '/bin/true',
+        calendar: 'daily',
+        description: 'Meine Unit',
+    };
+    const { serviceUnit } = generateUnits('job', opts);
+
+    assertStringIncludes(serviceUnit, 'Description=Meine Unit');
+});
+
+Deno.test('generateUnits berücksichtigt after=', () => {
+    const opts: TimerOptions = {
+        exec: '/bin/true',
+        calendar: 'daily',
+        after: ['network-online.target', 'docker.service'],
+    };
+    const { serviceUnit } = generateUnits('job', opts);
+
+    assertStringIncludes(serviceUnit, 'After=network-online.target');
+    assertStringIncludes(serviceUnit, 'After=docker.service');
+});
+
+Deno.test('generateUnits berücksichtigt environment und logfile', () => {
+    const opts: TimerOptions = {
+        exec: '/bin/true',
+        calendar: 'daily',
+        environment: ['FOO=bar', 'DEBUG=1'],
+        logfile: '/var/log/job.log',
+    };
+    const { serviceUnit } = generateUnits('job', opts);
+
+    assertStringIncludes(serviceUnit, 'Environment=FOO=bar');
+    assertStringIncludes(serviceUnit, 'Environment=DEBUG=1');
+    assertStringIncludes(serviceUnit, 'StandardOutput=append:/var/log/job.log');
+    assertStringIncludes(serviceUnit, 'StandardError=append:/var/log/job.log');
+});

src/templates/unit-generator.ts

@@ -0,0 +1,79 @@
+import { TimerOptions } from '../types/mod.ts';
+import { deriveNameFromExec, writeUnitFiles } from '../utils/mod.ts';
+
+export async function generateUnitFiles(options: TimerOptions): Promise<void> {
+    const name = options.name || deriveNameFromExec(options.exec);
+
+    const { serviceUnit, timerUnit } = generateUnits(name, options);
+
+    if (options.dryRun) {
+        console.log(`===== ${name}.service =====`);
+        console.log(serviceUnit);
+        console.log(`\n===== ${name}.timer =====`);
+        console.log(timerUnit);
+    } else {
+        const result = await writeUnitFiles(
+            name,
+            serviceUnit,
+            timerUnit,
+            options,
+        );
+
+        if (result) {
+            const { servicePath, timerPath } = result;
+            console.log(`Service Unit geschrieben in: ${servicePath}`);
+            console.log(`Timer Unit geschrieben in: ${timerPath}`);
+        } else {
+            return;
+        }
+
+        console.log(`\nℹ️  Hinweis:`);
+
+        if (options.user) {
+            console.log(`  systemctl --user daemon-reload`);
+            console.log(`  systemctl --user enable --now ${name}.timer`);
+        } else {
+            console.log(`  sudo systemctl daemon-reload`);
+            console.log(`  sudo systemctl enable --now ${name}.timer`);
+        }
+    }
+}
+
+export function generateUnits(name: string, options: TimerOptions): {
+    serviceUnit: string;
+    timerUnit: string;
+} {
+    const unitParts = [
+        `[Unit]`,
+        `Description=${options.description ?? name}`,
+        ...(options.after?.map((a) => `After=${a}`) ?? []),
+        ``,
+        `[Service]`,
+        `Type=oneshot`,
+        `ExecStart=${options.exec}`,
+        ...(options.environment?.map((e) => `Environment=${e}`) ?? []),
+    ];
+
+    if (options.logfile) {
+        unitParts.push(`StandardOutput=append:${options.logfile}`);
+        unitParts.push(`StandardError=append:${options.logfile}`);
+    }
+
+    const serviceUnit = unitParts.join('\n');
+
+    const timerParts = [
+        `[Unit]`,
+        `Description=Timer for ${name}`,
+        ``,
+        `[Timer]`,
+        `OnCalendar=${options.calendar}`,
+        `Persistent=true`,
+        ``,
+        `[Install]`,
+        `WantedBy=timers.target`,
+    ];
+
+    const timerUnit = timerParts.join('\n');
+
+    return { serviceUnit, timerUnit };
+}

src/types/mod.ts

@@ -0,0 +1 @@
+export type { TimerOptions } from './options.ts';

src/types/options.ts

@@ -0,0 +1,12 @@
+export interface TimerOptions {
+    name?: string;
+    exec: string;
+    calendar: string;
+    description?: string;
+    user?: boolean;
+    output?: string;
+    after?: string[];
+    environment?: string[];
+    logfile?: string;
+    dryRun?: boolean;
+}

src/utils/__tests__/fs.test.ts

@@ -0,0 +1,59 @@
+import {
+    assertEquals,
+    assertExists,
+    assertStringIncludes,
+} from 'https://deno.land/std@0.224.0/assert/mod.ts';
+import { join } from 'https://deno.land/std@0.224.0/path/mod.ts';
+import { resolveUnitTargetPath, writeUnitFiles } from '../mod.ts';
+import { TimerOptions } from '../../types/options.ts';
+
+Deno.test('writeUnitFiles schreibt .service und .timer korrekt', async () => {
+    const tmp = await Deno.makeTempDir({ prefix: 'test-units-' });
+
+    const options = {
+        output: tmp,
+        user: false,
+    };
+
+    const name = 'test-backup';
+    const serviceContent = '[Service]\nExecStart=/bin/true';
+    const timerContent = '[Timer]\nOnCalendar=daily';
+
+    const { servicePath, timerPath } = await writeUnitFiles(
+        name,
+        serviceContent,
+        timerContent,
+        options as TimerOptions,
+    ) as { servicePath: string; timerPath: string };
+
+    // Überprüfe Pfade
+    assertEquals(servicePath, join(tmp, 'test-backup.service'));
+    assertEquals(timerPath, join(tmp, 'test-backup.timer'));
+
+    // Existieren Dateien?
+    assertExists(await Deno.stat(servicePath));
+    assertExists(await Deno.stat(timerPath));
+
+    // Enthält die Datei den erwarteten Inhalt?
+    const readService = await Deno.readTextFile(servicePath);
+    const readTimer = await Deno.readTextFile(timerPath);
+
+    assertStringIncludes(readService, 'ExecStart=/bin/true');
+    assertStringIncludes(readTimer, 'OnCalendar=daily');
+});
+
+Deno.test('resolveUnitTargetPath mit --output', () => {
+    const result = resolveUnitTargetPath({ output: '/tmp/units', user: false });
+    assertEquals(result, '/tmp/units');
+});
+
+Deno.test('resolveUnitTargetPath mit --user ohne output', () => {
+    Deno.env.set('HOME', '/home/maxp');
+    const result = resolveUnitTargetPath({ output: undefined, user: true });
+    assertEquals(result, '/home/maxp/.config/systemd/user');
+});
+
+Deno.test('resolveUnitTargetPath ohne output und ohne user', () => {
+    const result = resolveUnitTargetPath({ output: undefined, user: false });
+    assertEquals(result, '/etc/systemd/system');
+});

src/utils/__tests__/misc.test.ts

@@ -0,0 +1,19 @@
+import { assertEquals } from 'https://deno.land/std@0.224.0/assert/mod.ts';
+import { deriveNameFromExec } from '../mod.ts';
+
+Deno.test('deriveNameFromExec - entfernt Pfad, Endung und Sonderzeichen', () => {
+    const tests: Array<[string, string]> = [
+        ['/usr/local/bin/backup.sh', 'backup'],
+        ['/usr/bin/python3 /home/user/myscript.py', 'python3'],
+        ['./my-job.ts', 'my-job'],
+        ['node ./tools/start.js', 'node'],
+        ['/bin/custom-script.rb', 'custom-script'],
+        ['  /usr/bin/something-strange!.bin  ', 'something-strange'],
+        ['weird:name?.sh', 'weird-name'],
+        ['', 'job'],
+    ];
+
+    for (const [input, expected] of tests) {
+        assertEquals(deriveNameFromExec(input), expected);
+    }
+});

src/utils/fs.ts

@@ -0,0 +1,46 @@
+import { ensureDir, exists } from 'https://deno.land/std@0.224.0/fs/mod.ts';
+import { join } from 'https://deno.land/std@0.224.0/path/mod.ts';
+import { TimerOptions } from '../types/mod.ts';
+
+export async function writeUnitFiles(
+    name: string,
+    serviceContent: string,
+    timerContent: string,
+    options: TimerOptions,
+): Promise<{ servicePath: string; timerPath: string } | undefined> {
+    const basePath = resolveUnitTargetPath(options);
+
+    await ensureDir(basePath);
+
+    const servicePath = join(basePath, `${name}.service`);
+    const timerPath = join(basePath, `${name}.timer`);
+
+    try {
+        await Deno.writeTextFile(servicePath, serviceContent);
+        await Deno.writeTextFile(timerPath, timerContent);
+    } catch (error) {
+        // Rollback: Remove any files that were written
+        try {
+            if (await exists(servicePath)) {
+                await Deno.remove(servicePath);
+            }
+            if (await exists(timerPath)) {
+                await Deno.remove(timerPath);
+            }
+        } catch (rollbackError) {
+            console.error('Rollback fehlgeschlagen:', rollbackError);
+        }
+        console.error('Fehler beim Schreiben der Units:', error);
+        return undefined;
+    }
+
+    return { servicePath, timerPath };
+}
+
+export function resolveUnitTargetPath(
+    options: Pick<TimerOptions, 'output' | 'user'>,
+): string {
+    if (options.output) return options.output;
+    if (options.user) return `${Deno.env.get('HOME')}/.config/systemd/user`;
+    return '/etc/systemd/system';
+}

src/utils/misc.ts

@@ -0,0 +1,12 @@
+export function deriveNameFromExec(exec: string): string {
+    const parts = exec.trim().split(' ');
+    const base = parts[0].split('/').pop() || 'job';
+
+    // remove the file extension
+    const withoutExt = base.replace(/\.(sh|py|ts|js|pl|rb|exe|bin)$/, '');
+
+    // replace illegal chars, then trim leading/trailing hyphens
+    return withoutExt
+        .replaceAll(/[^a-zA-Z0-9_-]/g, '-')
+        .replace(/^-+|-+$/g, '');
+}

src/utils/mod.ts

@@ -0,0 +1,3 @@
+export { resolveUnitTargetPath, writeUnitFiles } from './fs.ts';
+export { deriveNameFromExec } from './misc.ts';
+export { getVersion } from './version.ts';

src/utils/version.ts

@@ -0,0 +1,12 @@
+export async function getVersion(): Promise<string> {
+    try {
+        const versionUrl = new URL('../../VERSION', import.meta.url);
+        const version = await Deno.readTextFile(versionUrl);
+        return version.trim();
+    } catch (err) {
+        if (err instanceof Deno.errors.NotFound) {
+            return 'dev';
+        }
+        return 'unknown';
+    }
+}