ci: publish to TG

.github/workflows/announcements.yml

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+name: Publish Blog Post to Telegram/Discord
+on:
+  pull_request:
+    branches: [announcements]
+    types: [closed]
+    paths:
+      - "announcements/*.md"
+jobs:
+  publish:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Install Dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y jq curl pandoc
+
+      - name: Identify Markdown Files
+        id: files
+        run: |
+          base_sha=${{ github.event.pull_request.base.sha }}
+          head_sha=${{ github.event.pull_request.head.sha }}
+          git fetch origin $base_sha
+          git fetch origin $head_sha
+          files=$(git diff --name-only --diff-filter=A "$base_sha" "$head_sha" -- 'announcements/*.md')
+          files_comma_separated=$(echo "$files" | tr '\n' ',')
+          echo "Changed Markdown Files: $files_comma_separated"
+          echo "::set-output name=markdown_files::$files_comma_separated"
+
+      - name: Publish to Telegram/Discord
+        env:
+          TELEGRAM_TOKEN: ${{ secrets.TELEGRAM_TOKEN }}
+          TELEGRAM_TO: ${{ secrets.TELEGRAM_TO }}
+        run: |
+          IFS=',' read -ra files_arr <<< "${{ steps.files.outputs.markdown_files }}"
+          for file in "${files_arr[@]}"; do
+            # Skip empty strings which may occur if there's a trailing comma
+            [ -z "$file" ] && continue
+            echo "Processing file: $file"
+
+            pandoc -f markdown -t plain "$file" -o "$file.txt"
+            content=$(cat "$file.txt")
+
+            response=$(curl -s -w "HTTPSTATUS:%{http_code}" -X POST "https://api.telegram.org/bot${TELEGRAM_TOKEN}/sendMessage" \
+              -d chat_id="${TELEGRAM_TO}" -d text="$content" -d parse_mode="Markdown")
+            http_status=$(echo "$response" | tr -d '\n' | sed -e 's/.*HTTPSTATUS://')
+            if [ "$http_status" -ne 200 ] && [ "$http_status" -ne 204 ]; then
+              echo "Error sending to Telegram. HTTP Status: $http_status"
+              exit 1
+            fi
+
+            # Escape content for Discord JSON payload
+            escaped_content=$(echo "$content" | jq -Rs .)
+
+            response=$(curl -s -w "HTTPSTATUS:%{http_code}" -X POST -H "Content-Type: application/json" \
+              -d "{\"content\": $escaped_content}" https://discord.com/api/webhooks/1155501986532307056/POOHKkxip-2n4NA3Fe7ye1iPhrKeEwZOHiU2CSWCRt7TYv1uxvriNhZ0mat1JvLKpEsI)
+            http_status=$(echo "$response" | tr -d '\n' | sed -e 's/.*HTTPSTATUS://')
+            if [ "$http_status" -ne 200 ] && [ "$http_status" -ne 204 ]; then
+              echo "Error sending to Discord. HTTP Status: $http_status"
+              exit 1
+            fi
+          done

announcements/a16.md

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+# Test announcement
+
+Nothing to see here.

announcements/a17.md

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+# Test announcement
+
+Nothing to see **here**.
+
+- one
+- two

announcements/a18.md

@@ -0,0 +1,6 @@
+# Test announcement
+
+Nothing to see **here**.
+
+- one
+- two

announcements/a19.md

@@ -0,0 +1,6 @@
+# Test announcement
+
+Nothing to see **here**.
+
+- one
+- two

announcements/a20.md

@@ -0,0 +1,245 @@
+---
+__Advertisement :)__
+
+- __[pica](https://nodeca.github.io/pica/demo/)__ - high quality and fast image
+  resize in browser.
+- __[babelfish](https://github.com/nodeca/babelfish/)__ - developer friendly
+  i18n with plurals support and easy syntax.
+
+You will like those projects!
+
+---
+
+# h1 Heading 8-)
+## h2 Heading
+### h3 Heading
+#### h4 Heading
+##### h5 Heading
+###### h6 Heading
+
+
+## Horizontal Rules
+
+___
+
+---
+
+***
+
+
+## Typographic replacements
+
+Enable typographer option to see result.
+
+(c) (C) (r) (R) (tm) (TM) (p) (P) +-
+
+test.. test... test..... test?..... test!....
+
+!!!!!! ???? ,,  -- ---
+
+"Smartypants, double quotes" and 'single quotes'
+
+
+## Emphasis
+
+**This is bold text**
+
+__This is bold text__
+
+*This is italic text*
+
+_This is italic text_
+
+~~Strikethrough~~
+
+
+## Blockquotes
+
+
+> Blockquotes can also be nested...
+>> ...by using additional greater-than signs right next to each other...
+> > > ...or with spaces between arrows.
+
+
+## Lists
+
+Unordered
+
++ Create a list by starting a line with `+`, `-`, or `*`
++ Sub-lists are made by indenting 2 spaces:
+  - Marker character change forces new list start:
+    * Ac tristique libero volutpat at
+    + Facilisis in pretium nisl aliquet
+    - Nulla volutpat aliquam velit
++ Very easy!
+
+Ordered
+
+1. Lorem ipsum dolor sit amet
+2. Consectetur adipiscing elit
+3. Integer molestie lorem at massa
+
+
+1. You can use sequential numbers...
+1. ...or keep all the numbers as `1.`
+
+Start numbering with offset:
+
+57. foo
+1. bar
+
+
+## Code
+
+Inline `code`
+
+Indented code
+
+    // Some comments
+    line 1 of code
+    line 2 of code
+    line 3 of code
+
+
+Block code "fences"
+
+```
+Sample text here...
+```
+
+Syntax highlighting
+
+``` js
+var foo = function (bar) {
+  return bar++;
+};
+
+console.log(foo(5));
+```
+
+## Tables
+
+| Option | Description |
+| ------ | ----------- |
+| data   | path to data files to supply the data that will be passed into templates. |
+| engine | engine to be used for processing templates. Handlebars is the default. |
+| ext    | extension to be used for dest files. |
+
+Right aligned columns
+
+| Option | Description |
+| ------:| -----------:|
+| data   | path to data files to supply the data that will be passed into templates. |
+| engine | engine to be used for processing templates. Handlebars is the default. |
+| ext    | extension to be used for dest files. |
+
+
+## Links
+
+[link text](http://dev.nodeca.com)
+
+[link with title](http://nodeca.github.io/pica/demo/ "title text!")
+
+Autoconverted link https://github.com/nodeca/pica (enable linkify to see)
+
+
+## Images
+
+![Minion](https://octodex.github.com/images/minion.png)
+![Stormtroopocat](https://octodex.github.com/images/stormtroopocat.jpg "The Stormtroopocat")
+
+Like links, Images also have a footnote style syntax
+
+![Alt text][id]
+
+With a reference later in the document defining the URL location:
+
+[id]: https://octodex.github.com/images/dojocat.jpg  "The Dojocat"
+
+
+## Plugins
+
+The killer feature of `markdown-it` is very effective support of
+[syntax plugins](https://www.npmjs.org/browse/keyword/markdown-it-plugin).
+
+
+### [Emojies](https://github.com/markdown-it/markdown-it-emoji)
+
+> Classic markup: :wink: :crush: :cry: :tear: :laughing: :yum:
+>
+> Shortcuts (emoticons): :-) :-( 8-) ;)
+
+see [how to change output](https://github.com/markdown-it/markdown-it-emoji#change-output) with twemoji.
+
+
+### [Subscript](https://github.com/markdown-it/markdown-it-sub) / [Superscript](https://github.com/markdown-it/markdown-it-sup)
+
+- 19^th^
+- H~2~O
+
+
+### [\<ins>](https://github.com/markdown-it/markdown-it-ins)
+
+++Inserted text++
+
+
+### [\<mark>](https://github.com/markdown-it/markdown-it-mark)
+
+==Marked text==
+
+
+### [Footnotes](https://github.com/markdown-it/markdown-it-footnote)
+
+Footnote 1 link[^first].
+
+Footnote 2 link[^second].
+
+Inline footnote^[Text of inline footnote] definition.
+
+Duplicated footnote reference[^second].
+
+[^first]: Footnote **can have markup**
+
+    and multiple paragraphs.
+
+[^second]: Footnote text.
+
+
+### [Definition lists](https://github.com/markdown-it/markdown-it-deflist)
+
+Term 1
+
+:   Definition 1
+with lazy continuation.
+
+Term 2 with *inline markup*
+
+:   Definition 2
+
+        { some code, part of Definition 2 }
+
+    Third paragraph of definition 2.
+
+_Compact style:_
+
+Term 1
+  ~ Definition 1
+
+Term 2
+  ~ Definition 2a
+  ~ Definition 2b
+
+
+### [Abbreviations](https://github.com/markdown-it/markdown-it-abbr)
+
+This is HTML abbreviation example.
+
+It converts "HTML", but keep intact partial entries like "xxxHTMLyyy" and so on.
+
+*[HTML]: Hyper Text Markup Language
+
+### [Custom containers](https://github.com/markdown-it/markdown-it-container)
+
+::: warning
+*here be dragons*
+:::