init

.github/CONTRIBUTING.md

@@ -0,0 +1,118 @@
+# Contributing
+
+This document describes how you can contribute to Telegram Desktop. Please read it carefully.
+
+**Table of Contents**
+
+* [What contributions are accepted](#what-contributions-are-accepted)
+* [Build instructions](#build-instructions)
+* [Pull upstream changes into your fork regularly](#pull-upstream-changes-into-your-fork-regularly)
+* [How to get your pull request accepted](#how-to-get-your-pull-request-accepted)
+  * [Keep your pull requests limited to a single issue](#keep-your-pull-requests-limited-to-a-single-issue)
+    * [Squash your commits to a single commit](#squash-your-commits-to-a-single-commit)
+  * [Don't mix code changes with whitespace cleanup](#dont-mix-code-changes-with-whitespace-cleanup)
+  * [Keep your code simple!](#keep-your-code-simple)
+  * [Test your changes!](#test-your-changes)
+  * [Write a good commit message](#write-a-good-commit-message)
+
+## What contributions are accepted
+
+We highly appreciate your contributions in the matter of fixing bugs and optimizing the Telegram Desktop source code and its documentation. In case of fixing the existing user experience please push to your fork and [submit a pull request][pr].
+
+Wait for us. We try to review your pull requests as fast as possible.
+If we find issues with your pull request, we may suggest some changes and improvements.
+
+Unfortunately we **do not merge** any pull requests that have new feature implementations, translations to new languages and those which introduce any new user interface elements.
+
+If you have a translations-related contribution, check out [Translations platform][translate].
+
+Telegram Desktop is not a standalone application but a part of [Telegram project][telegram], so all the decisions about the features, languages, user experience, user interface and the design are made inside Telegram team, often according to some roadmap which is not public.
+
+## Build instructions
+
+See the [README.md][build_instructions] for details on the various build
+environments.
+
+## Pull upstream changes into your fork regularly
+
+Telegram Desktop is advancing quickly. It is therefore critical that you pull upstream changes into your fork on a regular basis. Nothing is worse than putting in a days of hard work into a pull request only to have it rejected because it has diverged too far from upstream.
+
+To pull in upstream changes:
+
+    git remote add upstream https://github.com/telegramdesktop/tdesktop.git
+    git fetch upstream master
+
+Check the log to be sure that you actually want the changes, before merging:
+
+    git log upstream/master
+
+Then rebase your changes on the latest commits in the `master` branch:
+
+    git rebase upstream/master
+
+After that, you have to force push your commits:
+
+    git push --force
+
+For more info, see [GitHub Help][help_fork_repo].
+
+## How to get your pull request accepted
+
+We want to improve Telegram Desktop with your contributions. But we also want to provide a stable experience for our users and the community. Follow these rules and you should succeed without a problem!
+
+### Keep your pull requests limited to a single issue
+
+Pull requests should be as small/atomic as possible. Large, wide-sweeping changes in a pull request will be **rejected**, with comments to isolate the specific code in your pull request. Some examples:
+
+* If you are making spelling corrections in the docs, don't modify other files.
+* If you are adding new functions don't '*cleanup*' unrelated functions. That cleanup belongs in another pull request.
+
+#### Squash your commits to a single commit
+
+To keep the history of the project clean, you should make one commit per pull request.
+If you already have multiple commits, you can add the commits together (squash them) with the following commands in Git Bash:
+
+1. Open `Git Bash` (or `Git Shell`)
+2. Enter following command to squash the recent {N} commits: `git reset --soft HEAD~{N} && git commit` (replace `{N}` with the number of commits you want to squash)
+3. Press <kbd>i</kbd> to get into Insert-mode
+4. Enter the commit message of the new commit
+5. After adding the message, press <kbd>ESC</kbd> to get out of the Insert-mode
+6. Write `:wq` and press <kbd>Enter</kbd> to save the new message or write `:q!` to discard your changes
+7. Enter `git push --force` to push the new commit to the remote repository
+
+For example, if you want to squash the last 5 commits, use `git reset --soft HEAD~5 && git commit`
+
+### Don't mix code changes with whitespace cleanup
+
+If you change two lines of code and correct 200 lines of whitespace issues in a file the diff on that pull request is functionally unreadable and will be **rejected**. Whitespace cleanups need to be in their own pull request.
+
+### Keep your code simple!
+
+Please keep your code as clean and straightforward as possible.
+Furthermore, the pixel shortage is over. We want to see:
+
+* `opacity` instead of `o`
+* `placeholder` instead of `ph`
+* `myFunctionThatDoesThings()` instead of `mftdt()`
+
+### Test your changes!
+
+Before you submit a pull request, please test your changes. Verify that Telegram Desktop still works and your changes don't cause other issue or crashes.
+
+### Write a good commit message
+
+* Explain why you make the changes. [More infos about a good commit message.][commit_message]
+
+* If you fix an issue with your commit, please close the issue by [adding one of the keywords and the issue number][closing-issues-via-commit-messages] to your commit message.
+
+  For example: `Fix #545`
+
+[//]: # (LINKS)
+[telegram]: https://telegram.org/
+[help_fork_repo]: https://help.github.com/articles/fork-a-repo/
+[help_change_commit_message]: https://help.github.com/articles/changing-a-commit-message/
+[commit_message]: http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html
+[pr]: https://github.com/telegramdesktop/tdesktop/compare
+[build_instructions]: https://github.com/telegramdesktop/tdesktop/blob/master/README.md#build-instructions
+[closing-issues-via-commit-messages]: https://help.github.com/articles/closing-issues-via-commit-messages/
+[translate]: https://translations.telegram.org

.github/ISSUE_TEMPLATE/BUG_REPORT.yml

@@ -0,0 +1,78 @@
+name: Bug report
+description: Report errors or unexpected behavior.
+labels: [bug]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for reporting issues of Telegram Desktop!
+
+        To make it easier for us to help you please enter detailed information below.
+  - type: textarea
+    attributes:
+      label: Steps to reproduce
+      placeholder: |
+        1. 
+        2. 
+        3. 
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Expected behaviour
+      placeholder: Tell us what should happen
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Actual behaviour
+      placeholder: Tell us what happens instead
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Operating system
+      description: >
+        Your operating system name, version and desktop environment.
+        **Don't use kernel version (uname), it's useless.**
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Version of Telegram Desktop
+      description: >
+        Please note we don't support versions from Linux distro repositories.
+        If you need support for these versions, **please contact your distro maintainer**
+        or your distro bugtracker.
+        **Don't use 'latest'**, specify actual version, **that's a reason to close your issue**.
+    validations:
+      required: true
+  - type: dropdown
+    attributes:
+      label: Installation source
+      multiple: false
+      options:
+        - Static binary from official website
+        - Microsoft Store
+        - Mac App Store
+        - Flatpak
+        - Snap
+        - Other (unofficial) source
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Crash ID
+      description: >
+        If you're reporting a crash, please enter the crash ID from the crash reporter
+        opening on the next launch after crash. **You have to enable beta versions
+        installation in Settings -> Advanced for the reporter to appear.**
+        You don't have to wait for a beta version to arrive.
+  - type: textarea
+    attributes:
+      label: Logs
+      description: >
+        You can find log.txt using the `viewlogs`
+        [cheat code](https://github.com/telegramdesktop/tdesktop/wiki/Cheat-Codes).
+      placeholder: Insert log.txt here (if necessary)
+      render: shell

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.yml

@@ -0,0 +1,29 @@
+---
+name: Feature request
+description: Suggest an idea.
+labels: [enhancement]
+body:
+  - type: textarea
+    attributes:
+      label: Is your feature request related to a problem?
+      placeholder: A clear and concise description of what the problem is.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Describe the solution you'd like
+      placeholder: A clear and concise description of what you want to happen.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Describe alternatives you've considered
+      placeholder: A clear and concise description of any alternative solutions or features you've considered.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Additional context
+      placeholder: Add any other context or screenshots about the feature request here.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,11 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Platform-wide issue
+    url: https://bugs.telegram.org
+    about: Any bug report or feature request affecting more than only Telegram Desktop.
+  - name: Issue of other client
+    url: https://bugs.telegram.org
+    about: Any bug report or feature request not about Telegram Desktop.
+  - name: Question
+    url: https://t.me/TelegramDesktopTalk
+    about: Ask a question.

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/cant-reproduce.yml

@@ -0,0 +1,25 @@
+name: Can't reproduce.
+
+on:
+  schedule:
+    - cron: '0 3 * * *'
+
+jobs:
+  cant-reproduce:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: lee-dohm/no-response@v0.5.0
+        with:
+          token: ${{ github.token }}
+          responseRequiredLabel: cant reproduce
+          closeComment: >
+            This issue has been automatically closed because no developer succeeded to
+            reproduce the issue with the given reproduction steps. With only the
+            information that is currently in the issue, we don't have enough
+            information to take action. Please reach out if you find what's missing to
+            reproduce the issue so that we can investigate further.
+
+
+            Note that GitHub is a developer communication platform. If you're an ordinary
+            user seeking for help, get to support crew via `Settings -> Ask question` in
+            the application.

.github/workflows/copyright_year_updater.yml

@@ -0,0 +1,16 @@
+name: Copyright year updater.
+
+on:
+  repository_dispatch:
+    types: ["Restart copyright_year_updater workflow."]
+  schedule:
+    # At 03:00 on January 1.
+    - cron: "0 3 1 1 *"
+
+jobs:
+  Copyright-year:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: desktop-app/action_code_updater@master
+        with:
+          type: "license-year"

.github/workflows/docker.yml

@@ -0,0 +1,42 @@
+name: Docker.
+
+on:
+  push:
+    paths:
+      - '.github/workflows/docker.yml'
+      - 'Telegram/build/docker/centos_env/**'
+
+jobs:
+  docker:
+    name: Ubuntu
+    runs-on: ubuntu-latest
+    if: github.ref_name == github.event.repository.default_branch
+
+    env:
+      IMAGE_TAG: ghcr.io/${{ github.repository }}/centos_env:latest
+
+    steps:
+      - name: Clone.
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: First set up.
+        run: |
+          sudo apt update
+          curl -sSL https://install.python-poetry.org | python3 -
+          echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u $ --password-stdin
+
+      - name: Free up some disk space.
+        uses: jlumbroso/free-disk-space@54081f138730dfa15788a46383842cd2f914a1be
+        with:
+          tool-cache: true
+
+      - name: Docker image build.
+        run: |
+          cd Telegram/build/docker/centos_env
+          poetry install
+          DEBUG= LTO= poetry run gen_dockerfile | DOCKER_BUILDKIT=1 docker build -t $IMAGE_TAG -
+
+      - name: Push the Docker image.
+        run: docker push $IMAGE_TAG

.github/workflows/issue_closer.yml

@@ -0,0 +1,14 @@
+name: Issue closer.
+
+on:
+  issues:
+    types: opened
+
+jobs:
+  comment:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Process an issue.
+        uses: desktop-app/action_issue_closer@master
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/linux.yml

@@ -0,0 +1,157 @@
+name: Linux.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/linux.yml'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - '!Telegram/build/docker/centos_env/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/mac/**'
+      - 'Telegram/Telegram/**'
+      - 'Telegram/configure.bat'
+      - 'Telegram/Telegram.plist'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/linux.yml'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - '!Telegram/build/docker/centos_env/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/mac/**'
+      - 'Telegram/Telegram/**'
+      - 'Telegram/configure.bat'
+      - 'Telegram/Telegram.plist'
+
+jobs:
+
+  linux:
+    name: Rocky Linux 8
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        defines:
+          - ""
+          - "DESKTOP_APP_DISABLE_X11_INTEGRATION"
+
+    env:
+      UPLOAD_ARTIFACT: "true"
+      ONLY_CACHE: "false"
+      IMAGE_TAG: tdesktop:centos_env
+
+    steps:
+      - name: Clone.
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: First set up.
+        run: |
+          sudo apt update
+          curl -sSL https://install.python-poetry.org | python3 -
+          cd Telegram/build/docker/centos_env
+          poetry install
+          DOCKERFILE=$(DEBUG= LTO= poetry run gen_dockerfile)
+          echo "$DOCKERFILE" > Dockerfile
+          rm -rf __pycache__
+
+      - name: Free up some disk space.
+        uses: jlumbroso/free-disk-space@54081f138730dfa15788a46383842cd2f914a1be
+        with:
+          tool-cache: true
+
+      - name: Set up Docker Buildx.
+        uses: docker/setup-buildx-action@v3
+
+      - name: Libraries cache.
+        uses: actions/cache@v5
+        with:
+          path: ${{ runner.temp }}/.buildx-cache
+          key: ${{ runner.OS }}-libs-${{ hashFiles('Telegram/build/docker/centos_env/**') }}
+          restore-keys: ${{ runner.OS }}-libs-
+
+      - name: Libraries.
+        uses: docker/build-push-action@v6
+        with:
+          context: Telegram/build/docker/centos_env
+          load: ${{ env.ONLY_CACHE == 'false' }}
+          tags: ${{ env.IMAGE_TAG }}
+          cache-from: type=local,src=${{ runner.temp }}/.buildx-cache
+          cache-to: type=local,dest=${{ runner.temp }}/.buildx-cache-new,mode=max
+
+      - name: Move cache.
+        run: |
+          rm -rf ${{ runner.temp }}/.buildx-cache
+          mv ${{ runner.temp }}/.buildx-cache{-new,}
+
+      - name: Telegram Desktop build.
+        if: env.ONLY_CACHE == 'false'
+        run: |
+          DEFINE=""
+          if [ -n "${{ matrix.defines }}" ]; then
+            DEFINE="-D ${{ matrix.defines }}=ON"
+            echo Define from matrix: $DEFINE
+            echo "ARTIFACT_NAME=Telegram ${{ matrix.defines }}" >> $GITHUB_ENV
+          else
+            echo "ARTIFACT_NAME=Telegram" >> $GITHUB_ENV
+          fi
+
+          docker run --rm \
+          -u $(id -u) \
+          -v $PWD:/usr/src/tdesktop \
+          -e CONFIG=Debug \
+          $IMAGE_TAG \
+          /usr/src/tdesktop/Telegram/build/docker/centos_env/build.sh \
+          -D CMAKE_CONFIGURATION_TYPES=Debug \
+          -D CMAKE_C_FLAGS_DEBUG="-O0" \
+          -D CMAKE_CXX_FLAGS_DEBUG="-O0" \
+          -D CMAKE_COMPILE_WARNING_AS_ERROR=ON \
+          -D TDESKTOP_API_TEST=ON \
+          -D DESKTOP_APP_DISABLE_AUTOUPDATE=OFF \
+          -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \
+          $DEFINE
+
+      - name: Check.
+        if: env.ONLY_CACHE == 'false'
+        run: |
+          filePath="out/Debug/Telegram"
+          if test -f "$filePath"; then
+            echo "Build successfully done! :)"
+
+            size=$(stat -c %s "$filePath")
+            echo "File size of ${filePath}: ${size} Bytes."
+          else
+            echo "Build error, output file does not exist."
+            exit 1
+          fi
+
+      - name: Move artifact.
+        if: env.UPLOAD_ARTIFACT == 'true'
+        run: |
+          cd out/Debug
+          mkdir artifact
+          mv {Telegram,Updater} artifact/
+      - uses: actions/upload-artifact@v6
+        if: env.UPLOAD_ARTIFACT == 'true'
+        name: Upload artifact.
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: out/Debug/artifact/

.github/workflows/lock.yml

@@ -0,0 +1,15 @@
+name: 'Lock Threads'
+
+on:
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  lock:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dessant/lock-threads@v6
+        with:
+          github-token: ${{ github.token }}
+          issue-inactive-days: 45
+          pr-inactive-days: 45

.github/workflows/mac.yml

@@ -0,0 +1,139 @@
+name: MacOS.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/mac.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/docker/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/linux/**'
+      - 'Telegram/configure.bat'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/mac.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/docker/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/linux/**'
+      - 'Telegram/configure.bat'
+
+jobs:
+
+  macos:
+    name: MacOS
+    runs-on: macos-latest
+
+    strategy:
+      matrix:
+        defines:
+          - ""
+    env:
+      UPLOAD_ARTIFACT: "true"
+      ONLY_CACHE: "false"
+      PREPARE_PATH: "Telegram/build/prepare/prepare.py"
+
+    steps:
+      - name: Get repository name.
+        run: echo "REPO_NAME=${GITHUB_REPOSITORY##*/}" >> $GITHUB_ENV
+
+      - name: Clone.
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+          path: ${{ env.REPO_NAME }}
+
+      - name: First set up.
+        run: |
+          sudo chown -R `whoami`:admin /usr/local/share
+
+          brew update
+          brew upgrade || true
+          brew install automake meson nasm ninja pkg-config
+
+          # Disable spotlight.
+          sudo mdutil -a -i off
+
+          sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
+
+          sudo sed -i '' '/CMAKE_${lang}_FLAGS_DEBUG_INIT/s/ -g//' /opt/homebrew/share/cmake/Modules/Compiler/GNU.cmake
+
+      - name: ThirdParty cache.
+        id: cache-third-party
+        uses: actions/cache@v5
+        with:
+          path: ThirdParty
+          key: ${{ runner.OS }}-third-party-${{ hashFiles(format('{0}/{1}', env.REPO_NAME, env.PREPARE_PATH)) }}
+          restore-keys: ${{ runner.OS }}-third-party-
+
+      - name: Libraries cache.
+        id: cache-libs
+        uses: actions/cache@v5
+        with:
+          path: Libraries
+          key: ${{ runner.OS }}-libs-${{ hashFiles(format('{0}/{1}', env.REPO_NAME, env.PREPARE_PATH)) }}
+          restore-keys: ${{ runner.OS }}-libs-
+
+      - name: Libraries.
+        run: |
+          ./$REPO_NAME/Telegram/build/prepare/mac.sh skip-release silent
+
+      - name: Free up some disk space.
+        run: find Libraries '(' '(' ! '(' -name '*.a' -o -name '*.h' -o -name '*.hpp' -o -name '*.inc' -o -name '*.cmake' -o -path '*/include/*' -o -path '*/objects-*' -o -path '*/cache_keys/*' -o -perm +111 ')' -type f ')' -o -empty ')' -delete
+
+      - name: Telegram Desktop build.
+        if: env.ONLY_CACHE == 'false'
+        run: |
+          cd $REPO_NAME/Telegram
+
+          DEFINE=""
+          if [ -n "${{ matrix.defines }}" ]; then
+            DEFINE="-D ${{ matrix.defines }}=ON"
+            echo Define from matrix: $DEFINE
+            echo "ARTIFACT_NAME=Telegram ${{ matrix.defines }}" >> $GITHUB_ENV
+          else
+            echo "ARTIFACT_NAME=Telegram" >> $GITHUB_ENV
+          fi
+
+          ./configure.sh \
+          -D CMAKE_CONFIGURATION_TYPES=Debug \
+          -D CMAKE_COMPILE_WARNING_AS_ERROR=ON \
+          -D CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED=NO \
+          -D TDESKTOP_API_TEST=ON \
+          -D DESKTOP_APP_DISABLE_AUTOUPDATE=OFF \
+          -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \
+          $DEFINE
+
+          cmake --build ../out --config Debug --parallel
+
+      - name: Move artifact.
+        if: env.UPLOAD_ARTIFACT == 'true'
+        run: |
+          cd $REPO_NAME/out/Debug
+          mkdir artifact
+          mv Telegram.app artifact/
+          mv Updater artifact/
+      - uses: actions/upload-artifact@v6
+        if: env.UPLOAD_ARTIFACT == 'true'
+        name: Upload artifact.
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: ${{ env.REPO_NAME }}/out/Debug/artifact/

.github/workflows/mac_packaged.yml

@@ -0,0 +1,195 @@
+name: MacOS Packaged.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/mac_packaged.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/linux/**'
+      - 'Telegram/configure.bat'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/mac_packaged.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/linux/**'
+      - 'Telegram/configure.bat'
+
+jobs:
+
+  macos:
+    name: MacOS
+    runs-on: macos-latest
+
+    strategy:
+      matrix:
+        defines:
+          - ""
+
+    env:
+      GIT: "https://github.com"
+      CMAKE_PREFIX_PATH: "/opt/homebrew/opt/ffmpeg@6:/opt/homebrew/opt/openal-soft"
+      UPLOAD_ARTIFACT: "true"
+      ONLY_CACHE: "false"
+      MANUAL_CACHING: "1"
+      AUTO_CACHING: "1"
+
+    steps:
+      - name: Get repository name.
+        run: echo "REPO_NAME=${GITHUB_REPOSITORY##*/}" >> $GITHUB_ENV
+
+      - name: Clone.
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+          path: ${{ env.REPO_NAME }}
+
+      - name: First set up.
+        run: |
+          brew update
+          brew upgrade || true
+          brew install ada-url autoconf automake boost cmake ffmpeg@6 jpeg-xl libavif libheif libtool openal-soft openh264 openssl opus ninja pkg-config python qtbase qtimageformats qtsvg xz
+          sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
+
+          xcodebuild -version > CACHE_KEY.txt
+          brew list --versions >> CACHE_KEY.txt
+          echo $MANUAL_CACHING >> CACHE_KEY.txt
+          echo "$GITHUB_WORKSPACE" >> CACHE_KEY.txt
+          if [ "$AUTO_CACHING" = "1" ]; then
+            thisFile=$REPO_NAME/.github/workflows/mac_packaged.yml
+            echo `md5 -q $thisFile` >> CACHE_KEY.txt
+          fi
+          echo "CACHE_KEY=`md5 -q CACHE_KEY.txt`" >> $GITHUB_ENV
+
+          echo "MACOSX_DEPLOYMENT_TARGET=$(grep 'set(QT_SUPPORTED_MIN_MACOS_VERSION' /opt/homebrew/Cellar/qtbase/*/lib/cmake/Qt6/Qt6ConfigExtras.cmake | sed -E 's/^.*"(.*)"\)$/\1/')" >> $GITHUB_ENV
+          echo "LibrariesPath=`pwd`" >> $GITHUB_ENV
+
+          echo "WEBRTC=`curl -sSL --header 'Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' https://api.github.com/repos/desktop-app/tg_owt/git/refs/heads/master | jq -r .object.sha`" >> $GITHUB_ENV
+
+      - name: RNNoise.
+        run: |
+          cd $LibrariesPath
+
+          git clone --depth=1 https://gitlab.xiph.org/xiph/rnnoise.git
+          cd rnnoise
+          ./autogen.sh
+          ./configure --disable-examples --disable-doc
+          make -j$(sysctl -n hw.logicalcpu)
+          sudo make install
+
+      - name: WebRTC cache.
+        id: cache-webrtc
+        uses: actions/cache@v5
+        with:
+          path: ${{ env.LibrariesPath }}/tg_owt
+          key: ${{ runner.OS }}-webrtc-${{ env.WEBRTC }}-${{ env.CACHE_KEY }}
+      - name: WebRTC.
+        if: steps.cache-webrtc.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone --depth=1 --recursive --shallow-submodules $GIT/desktop-app/tg_owt.git
+          cd tg_owt
+
+          cmake -Bbuild -GNinja . \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DCMAKE_C_FLAGS_DEBUG="" \
+          -DCMAKE_CXX_FLAGS_DEBUG="" \
+          -DCMAKE_DISABLE_FIND_PACKAGE_absl=ON
+
+          cmake --build build --parallel
+
+      - name: TDE2E cache.
+        id: cache-tde2e
+        uses: actions/cache@v5
+        with:
+          path: ${{ env.LibrariesPath }}/tde2e
+          key: ${{ runner.OS }}-tde2e-${{ env.CACHE_KEY }}
+      - name: TDE2E.
+        if: steps.cache-tde2e.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git init tde2e
+          cd tde2e
+          git remote add origin $GIT/tdlib/td.git
+          git fetch --depth=1 origin 51743dfd01dff6179e2d8f7095729caa4e2222e9
+          git reset --hard FETCH_HEAD
+
+          cmake -Bbuild -GNinja . \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DCMAKE_INSTALL_PREFIX=$PWD/build/prefix \
+          -DCMAKE_C_FLAGS_DEBUG="" \
+          -DCMAKE_CXX_FLAGS_DEBUG="" \
+          -DTD_E2E_ONLY=ON
+
+          cmake --build build --parallel
+          cmake --install build
+
+      - name: Telegram Desktop build.
+        if: env.ONLY_CACHE == 'false'
+        env:
+          tg_owt_DIR: ${{ env.LibrariesPath }}/tg_owt/build
+          tde2e_DIR: ${{ env.LibrariesPath }}/tde2e/build/prefix
+        run: |
+          cd $REPO_NAME
+
+          DEFINE=""
+          if [ -n "${{ matrix.defines }}" ]; then
+            DEFINE="-D ${{ matrix.defines }}=ON"
+            echo Define from matrix: $DEFINE
+            echo "ARTIFACT_NAME=Telegram ${{ matrix.defines }}" >> $GITHUB_ENV
+          else
+            echo "ARTIFACT_NAME=Telegram" >> $GITHUB_ENV
+          fi
+
+          cmake -Bbuild -GNinja . \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DCMAKE_C_FLAGS_DEBUG="" \
+          -DCMAKE_CXX_FLAGS_DEBUG="" \
+          -DTDESKTOP_API_TEST=ON \
+          $DEFINE
+
+          cmake --build build --parallel
+
+          cd build
+          macdeployqt Telegram.app
+          codesign --remove-signature Telegram.app
+
+          mkdir dmgsrc
+          mv Telegram.app dmgsrc
+          hdiutil create -volname Telegram -srcfolder dmgsrc -ov -format UDZO Telegram.dmg
+
+      - name: Move artifact.
+        if: env.UPLOAD_ARTIFACT == 'true'
+        run: |
+          cd $REPO_NAME/build
+          mkdir artifact
+          mv Telegram.dmg artifact/
+      - uses: actions/upload-artifact@v6
+        if: env.UPLOAD_ARTIFACT == 'true'
+        name: Upload artifact.
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: ${{ env.REPO_NAME }}/build/artifact/

.github/workflows/master_updater.yml

@@ -0,0 +1,13 @@
+name: Master branch updater.
+
+on:
+  release:
+    types: released
+
+jobs:
+  User-agent:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: desktop-app/action_code_updater@master
+        with:
+          type: "dev-to-master"

.github/workflows/needs-user-action.yml

@@ -0,0 +1,16 @@
+name: Needs user action.
+
+on:
+  issue_comment:
+    types: [created]
+  schedule:
+    - cron: '0 2 * * *'
+
+jobs:
+  needs-user-action:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: lee-dohm/no-response@v0.5.0
+        with:
+          token: ${{ github.token }}
+          responseRequiredLabel: needs user action

.github/workflows/snap.yml

@@ -0,0 +1,87 @@
+name: Snap.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/snap.yml'
+      - 'Telegram/build/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/mac/**'
+      - 'Telegram/Telegram/**'
+      - 'Telegram/configure.bat'
+      - 'Telegram/Telegram.plist'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/snap.yml'
+      - 'Telegram/build/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/mac/**'
+      - 'Telegram/Telegram/**'
+      - 'Telegram/configure.bat'
+      - 'Telegram/Telegram.plist'
+
+jobs:
+
+  snap:
+    name: Ubuntu
+    runs-on: ubuntu-latest
+
+    env:
+      UPLOAD_ARTIFACT: "true"
+
+    steps:
+      - name: Clone.
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: First set up.
+        run: |
+          sudo iptables -P FORWARD ACCEPT
+          sudo snap install --classic snapcraft
+          sudo usermod -aG lxd $USER
+          sudo lxd init --auto
+          sudo lxd waitready
+
+      - name: Free up some disk space.
+        uses: samueldr/more-space-action@97048bd0df83fb05b5257887bdbaffc848887673
+        with:
+          enable-remove-default-apt-patterns: false
+          enable-lvm-span: true
+          lvm-span-mountpoint: /var/snap/lxd/common/lxd/storage-pools/default/containers
+
+      - name: Telegram Desktop snap build.
+        run: sudo -u $USER snap run snapcraft --verbosity=debug
+
+      - name: Move artifact.
+        if: env.UPLOAD_ARTIFACT == 'true'
+        run: |
+          artifact_name=$(echo telegram-desktop_*.snap)
+          echo "ARTIFACT_NAME=$artifact_name" >> $GITHUB_ENV
+
+          mkdir artifact
+          mv $artifact_name artifact
+
+      - uses: actions/upload-artifact@v6
+        if: env.UPLOAD_ARTIFACT == 'true'
+        name: Upload artifact.
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: artifact

.github/workflows/stale.yml

@@ -0,0 +1,25 @@
+name: 'Close stale issues and PRs'
+on:
+  schedule:
+    - cron: '30 1 * * *'
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v10
+        with:
+          stale-issue-message: |
+            Hey there!
+
+            This issue was inactive for a long time and will be automatically closed in 30 days if there isn't any further activity. We therefore assume that the user has lost interest or resolved the problem on their own.
+
+            Don't worry though; if this is an error, let us know with a comment and we'll be happy to reopen the issue.
+
+            Thanks!
+          stale-issue-label: 'stale'
+          exempt-issue-labels: 'enhancement'
+          days-before-stale: 180
+          days-before-close: 30
+          days-before-pr-stale: -1
+          operations-per-run: 1000

.github/workflows/user_agent_updater.yml

@@ -0,0 +1,16 @@
+name: User-agent updater.
+
+on:
+  repository_dispatch:
+    types: ["Restart user_agent_updater workflow."]
+  schedule:
+    # At 00:00 on day-of-month 1.
+    - cron: "0 0 1 * *"
+
+jobs:
+  User-agent:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: desktop-app/action_code_updater@master
+        with:
+          type: "user-agent"

.github/workflows/waiting-for-answer.yml

@@ -0,0 +1,16 @@
+name: Waiting for answer.
+
+on:
+  issue_comment:
+    types: [created]
+  schedule:
+    - cron: '30 0 * * *'
+
+jobs:
+  waiting-for-answer:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: lee-dohm/no-response@v0.5.0
+        with:
+          token: ${{ github.token }}
+          responseRequiredLabel: waiting for answer

.github/workflows/win.yml

@@ -0,0 +1,210 @@
+name: Windows.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - '!docs/building-win*.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/win.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/docker/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/SourceFiles/platform/linux/**'
+      - 'Telegram/SourceFiles/platform/mac/**'
+      - 'Telegram/Telegram/**'
+      - 'Telegram/configure.sh'
+      - 'Telegram/Telegram.plist'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - '!docs/building-win*.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/win.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/docker/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/SourceFiles/platform/linux/**'
+      - 'Telegram/SourceFiles/platform/mac/**'
+      - 'Telegram/Telegram/**'
+      - 'Telegram/configure.sh'
+      - 'Telegram/Telegram.plist'
+
+jobs:
+
+  windows:
+    name: Windows
+    runs-on: windows-latest
+
+    strategy:
+      matrix:
+        arch: [Win32, x64]
+        generator: ["", "Ninja Multi-Config"]
+
+    env:
+      UPLOAD_ARTIFACT: "true"
+      ONLY_CACHE: "false"
+      PREPARE_PATH: "Telegram/build/prepare/prepare.py"
+
+    defaults:
+      run:
+        shell: cmd
+
+    steps:
+      - name: Prepare directories.
+        run: |
+          mkdir %userprofile%\TBuild\Libraries
+          mklink /d %GITHUB_WORKSPACE%\TBuild %userprofile%\TBuild
+          echo TBUILD=%GITHUB_WORKSPACE%\TBuild>>%GITHUB_ENV%
+
+      - name: Get repository name.
+        shell: bash
+        run: echo "REPO_NAME=${GITHUB_REPOSITORY##*/}" >> $GITHUB_ENV
+
+      - name: Clone.
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+          path: ${{ env.TBUILD }}\${{ env.REPO_NAME }}
+
+      - name: First set up.
+        shell: bash
+        run: |
+          DOCPATH=$TBUILD/$REPO_NAME/docs/building-win.md
+          [ "${{ matrix.arch }}" != Win32 ] && DOCPATH=$TBUILD/$REPO_NAME/docs/building-win-${{ matrix.arch }}.md
+          SDK="$(grep "SDK version" $DOCPATH | sed -r 's/.*\*\*(.*)\*\* SDK version.*/\1/')"
+          echo "SDK=$SDK" >> $GITHUB_ENV
+
+          sed -i '/CMAKE_${lang}_FLAGS_DEBUG_INIT/s/${_Zi}//' "$PROGRAMFILES"/CMake/share/cmake*/Modules/Platform/Windows-MSVC.cmake
+
+          echo "$(sha256sum $TBUILD/$REPO_NAME/$PREPARE_PATH | awk '{ print $1 }')" >> CACHE_KEY.txt
+          echo "$SDK" >> CACHE_KEY.txt
+          echo "CACHE_KEY=$(sha256sum CACHE_KEY.txt | awk '{ print $1 }')" >> $GITHUB_ENV
+
+          echo "Configurate git for cherry-picks."
+          git config --global user.email "you@example.com"
+          git config --global user.name "Sample"
+
+      - uses: ilammy/msvc-dev-cmd@v1.13.0
+        name: Native Tools Command Prompt.
+        with:
+          arch: ${{ matrix.arch }}
+          sdk: ${{ env.SDK }}
+
+      - name: NuGet sources.
+        run: |
+          nuget sources Disable -Name "Microsoft Visual Studio Offline Packages"
+          nuget sources Add -Source https://api.nuget.org/v3/index.json & exit 0
+
+      - name: ThirdParty cache.
+        id: cache-third-party
+        uses: actions/cache@v5
+        with:
+          path: ${{ env.TBUILD }}\ThirdParty
+          key: ${{ runner.OS }}-${{ matrix.arch }}-third-party-${{ env.CACHE_KEY }}
+          restore-keys: ${{ runner.OS }}-${{ matrix.arch }}-third-party-
+
+      - name: Libraries cache.
+        id: cache-libs
+        uses: actions/cache@v5
+        with:
+          path: ${{ env.TBUILD }}\Libraries
+          key: ${{ runner.OS }}-${{ matrix.arch }}-libs-${{ env.CACHE_KEY }}
+          restore-keys: ${{ runner.OS }}-${{ matrix.arch }}-libs-
+
+      - name: Libraries.
+        env:
+          GYP_MSVS_OVERRIDE_PATH: 'C:\Program Files\Microsoft Visual Studio\2022\Enterprise\'
+          GYP_MSVS_VERSION: 2022
+        run: |
+          cd %TBUILD%
+          %REPO_NAME%\Telegram\build\prepare\win.bat skip-release silent
+
+      - name: Read configuration matrix.
+        shell: bash
+        run: |
+          ARTIFACT_NAME="Telegram"
+
+          ARCH=""
+          if [ -n "${{ matrix.arch }}" ]; then
+            case "${{ matrix.arch }}" in
+              Win32) ARCH="x86";;
+              *) ARCH="${{ matrix.arch }}";;
+            esac
+            echo "Architecture from matrix: $ARCH"
+            ARTIFACT_NAME="${ARTIFACT_NAME} ${{ matrix.arch }}"
+          fi
+
+          GENERATOR=""
+          if [ -n "${{ matrix.generator }}" ]; then
+            GENERATOR="-G \"${{ matrix.generator }}\""
+            echo "Generator from matrix: $GENERATOR"
+            ARTIFACT_NAME="${ARTIFACT_NAME} ${{ matrix.generator }}"
+          fi
+          echo "TDESKTOP_BUILD_GENERATOR=$GENERATOR" >> $GITHUB_ENV
+
+          [ -n "$GENERATOR" ] && ARCH=""
+          echo "TDESKTOP_BUILD_ARCH=$ARCH" >> $GITHUB_ENV
+
+          DEFINE=""
+          if [ -n "${{ matrix.defines }}" ]; then
+            DEFINE="-D ${{ matrix.defines }}=ON"
+            echo "Define from matrix: $DEFINE"
+            ARTIFACT_NAME="${ARTIFACT_NAME} ${{ matrix.defines }}"
+          fi
+          echo "TDESKTOP_BUILD_DEFINE=$DEFINE" >> $GITHUB_ENV
+
+          echo "ARTIFACT_NAME=$ARTIFACT_NAME" >> $GITHUB_ENV
+
+          API="-D TDESKTOP_API_TEST=ON"
+          if [ $GITHUB_REF == 'refs/heads/nightly' ]; then
+            echo "Use the open credentials."
+            API="-D TDESKTOP_API_ID=611335 -D TDESKTOP_API_HASH=d524b414d21f4d37f08684c1df41ac9c"
+          fi
+          echo "TDESKTOP_BUILD_API=$API" >> $GITHUB_ENV
+
+      - name: Free up some disk space.
+        shell: bash
+        run: find TBuild/Libraries '(' '(' ! '(' -name '*.lib' -o -name '*.a' -o -name '*.exe' -o -name '*.h' -o -name '*.hpp' -o -name '*.inc' -o -name '*.cmake' -o -path '*/include/*'  -o -path '*/objects-*' -o -path '*/cache_keys/*' ')' -type f ')' -o -empty ')' -delete
+
+      - name: Telegram Desktop build.
+        if: env.ONLY_CACHE == 'false'
+        run: |
+          cd %TBUILD%\%REPO_NAME%\Telegram
+
+          call configure.bat ^
+          %TDESKTOP_BUILD_GENERATOR% ^
+          %TDESKTOP_BUILD_ARCH% ^
+          %TDESKTOP_BUILD_API% ^
+          -D CMAKE_CONFIGURATION_TYPES=Debug ^
+          -D CMAKE_COMPILE_WARNING_AS_ERROR=ON ^
+          -D CMAKE_MSVC_DEBUG_INFORMATION_FORMAT= ^
+          -D DESKTOP_APP_DISABLE_AUTOUPDATE=OFF ^
+          -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF ^
+          %TDESKTOP_BUILD_DEFINE%
+
+          cmake --build ..\out --config Debug --parallel
+
+      - name: Move artifact.
+        if: (env.UPLOAD_ARTIFACT == 'true') || (github.ref == 'refs/heads/nightly')
+        run: |
+          set OUT=%TBUILD%\%REPO_NAME%\out\Debug
+          mkdir artifact
+          move %OUT%\Telegram.exe artifact/
+          move %OUT%\Updater.exe artifact/
+      - uses: actions/upload-artifact@v6
+        name: Upload artifact.
+        if: (env.UPLOAD_ARTIFACT == 'true') || (github.ref == 'refs/heads/nightly')
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: artifact\

.github/workflows/winget.yml

@@ -0,0 +1,20 @@
+name: Publish to WinGet
+on:
+  release:
+    types: [released, prereleased]
+jobs:
+  publish:
+    runs-on: windows-latest # action can only be run on windows
+    steps:
+      - if: github.event.action == 'released'
+        uses: telegramdesktop/winget-releaser@main
+        with:
+          identifier: Telegram.TelegramDesktop
+          installers-regex: 't(setup|portable).*(exe|zip)$'
+          token: ${{ secrets.WINGET_TOKEN }}
+      - if: github.event.action == 'prereleased'
+        uses: telegramdesktop/winget-releaser@main
+        with:
+          identifier: Telegram.TelegramDesktop.Beta
+          installers-regex: 't(setup|portable).*(exe|zip)$'
+          token: ${{ secrets.WINGET_TOKEN }}