Get structured list of upgradable Debian Linux packages

README.md

This tiny flow will use the apt package manager. It firstly updates the currently available package list and then reports back which packages can be upgraded along with some details.

flow.json

[
    {
        "id": "29a3a599db731b04",
        "type": "group",
        "z": "ef122f0d.d488b",
        "name": "List upgradable APT packages",
        "style": {
            "label": true
        },
        "nodes": [
            "3b911ea74aad29e7",
            "5e2a54e15d8d7698",
            "4b8ece50ee98bd5d",
            "df595cc8be4d8916",
            "c3941a8f0dc89196"
        ],
        "x": 24,
        "y": 151.5,
        "w": 882,
        "h": 97
    },
    {
        "id": "3b911ea74aad29e7",
        "type": "exec",
        "z": "ef122f0d.d488b",
        "g": "29a3a599db731b04",
        "command": "sudo /usr/bin/apt update",
        "addpay": "",
        "append": "",
        "useSpawn": "false",
        "timer": "",
        "winHide": false,
        "oldrc": false,
        "name": "apt update",
        "x": 290,
        "y": 200,
        "wires": [
            [
                "5e2a54e15d8d7698"
            ],
            [],
            []
        ]
    },
    {
        "id": "5e2a54e15d8d7698",
        "type": "exec",
        "z": "ef122f0d.d488b",
        "g": "29a3a599db731b04",
        "command": "sudo /usr/bin/apt list --upgradable",
        "addpay": "",
        "append": "",
        "useSpawn": "false",
        "timer": "",
        "winHide": false,
        "oldrc": false,
        "name": "apt list upgradable",
        "x": 470,
        "y": 200,
        "wires": [
            [
                "c3941a8f0dc89196"
            ],
            [],
            []
        ]
    },
    {
        "id": "4b8ece50ee98bd5d",
        "type": "inject",
        "z": "ef122f0d.d488b",
        "g": "29a3a599db731b04",
        "name": "apt updatable",
        "props": [
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "apt updatable",
        "x": 140,
        "y": 200,
        "wires": [
            [
                "3b911ea74aad29e7"
            ]
        ]
    },
    {
        "id": "df595cc8be4d8916",
        "type": "debug",
        "z": "ef122f0d.d488b",
        "g": "29a3a599db731b04",
        "name": "Output",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 810,
        "y": 200,
        "wires": []
    },
    {
        "id": "c3941a8f0dc89196",
        "type": "function",
        "z": "ef122f0d.d488b",
        "g": "29a3a599db731b04",
        "name": "Process output",
        "func": "let out = msg.payload.split('\\n')\nout = out.slice(1, -1)\nout.forEach( (item, i) => {\n    // node.warn(item.split('/'))\n    const [package, detail] = item.split('/')\n    const [source, newVersion, platform, , , oldVer] = detail.split(' ')\n    out[i] = {\n        package,\n        newVersion,\n        currentVersion: oldVer.replace(']', ''),\n        platform,\n        source,\n    }\n})\nreturn {\n    topic: 'Home server upgradable packages',\n    payload: out,\n}",
        "outputs": 1,
        "timeout": 0,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 660,
        "y": 200,
        "wires": [
            [
                "df595cc8be4d8916"
            ]
        ]
    }
]