[feature] new automated update

.github/workflows/cron.update.yml

@@ -0,0 +1,109 @@
+name: cron-update
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 5 * * *"
+
+jobs:
+  cron-update:
+    runs-on: ubuntu-latest
+    steps:
+      - name: cron-update / get latest version
+        uses: actions/github-script@62c3794a3eb6788d9a2a72b219504732c0c9a298
+        with:
+          script: |
+            (async()=>{
+              let found = false;
+              const res = await fetch('https://www.isc.org/download/');
+              if(res && res.status === 200){
+                const html = await res.text();
+                const trs = [...html.replace(/[\r\n]*/ig, '').matchAll(/<tr>(.*?)<\/tr>/ig)];
+                for(const tr of trs){
+                  const tds = [...tr[0].matchAll(/<td[^>]*>(.*?)<\/td>/ig)];
+                  if(Array.isArray(tds)){
+                    for(const td of tds){
+                      if(/This software is recommended for production use/i.test(td.input) && /Current Stable, ESV/i.test(td.input)){
+                        core.exportVariable('LATEST_VERSION', td[1]);
+                        core.info(`found bind version ${td[1]}`);
+                        found = true;
+                        break;
+                      }
+                    }
+                  }
+                }
+              }
+
+              if(!found){
+                core.setFailed('no version for Unifi could be found!');
+              }
+            })();
+
+      - name: cron-update / compare latest with current version
+        uses: actions/github-script@62c3794a3eb6788d9a2a72b219504732c0c9a298
+        with:
+          script: |
+            const { existsSync, readFileSync, writeFileSync } = require('node:fs');
+            const { resolve } = require('node:path');
+            const { inspect } = require('node:util');
+            const latest = "${{ env.LATEST_VERSION }}";
+            const repository = {dot:{}};
+
+            try{
+              const path = resolve('.json');
+              if(existsSync(path)){
+                try{
+                  repository.dot = JSON.parse(readFileSync(path).toString());
+                }catch(e){
+                  throw new Error('could not parse .json');
+                }
+              }else{
+                throw new Error('.json does not exist');
+              }
+            }catch(e){
+              core.setFailed(e);
+            }
+
+            const current = repository.dot.semver.version;
+
+            if(latest.match(/\d+\.\d+\.\d+/i) && latest !== repository.dot.semver.version){
+              core.info(`found newer version ${latest}`);
+              repository.dot.semver.version = latest.split('.').slice(0,3).join('.');
+              if(repository.dot.semver?.latest){
+                repository.dot.semver.latest = repository.dot.semver.version;
+              }
+                if(repository.dot.semver?.stable){
+                repository.dot.semver.stable = repository.dot.semver.version;
+              }
+              if(repository.dot?.readme?.comparison?.image){
+                repository.dot.readme.comparison.image = repository.dot.readme.comparison.image.replace(/\d+\.\d+/i , latest.split('.').slice(0,2).join('.'));
+              }
+              try{
+                writeFileSync(resolve('.json'), JSON.stringify(repository.dot, null, 2));
+                core.exportVariable('WORKFLOW_AUTO_UPDATE', true);
+              }catch(e){
+                core.setFailed(e);
+              }
+            }else{
+              core.info(`latest version ${latest} is equal to current version ${repository.dot.semver.version}, no update needed!`);
+            }
+
+            core.info(inspect(repository.dot, {showHidden:false, depth:null, colors:true}));
+
+      - name: cron-update / checkout
+        id: checkout
+        if: env.WORKFLOW_AUTO_UPDATE == 'true'
+        run: |         
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add .json
+          git commit -m "[upgrade] ${{ env.LATEST_VERSION }}"
+          git push origin HEAD:master
+
+      - name: cron-update / build docker image
+        if: env.WORKFLOW_AUTO_UPDATE == 'true' && steps.checkout.outcome == 'success'
+        uses: the-actions-org/workflow-dispatch@3133c5d135c7dbe4be4f9793872b6ef331b53bc7
+        with:
+          wait-for-completion: false
+          workflow: docker.yml
+          token: "${{ secrets.REPOSITORY_TOKEN }}"
+          inputs: '{ "release":"false", "readme":"true" }'