wip linux webview

Fixes #6423.

.appveyor/install.bat

@@ -1,86 +0,0 @@
-@echo off
-
-IF "%BUILD_DIR%"=="" SET BUILD_DIR=C:\TBuild
-SET LIB_DIR=%BUILD_DIR%\Libraries
-SET SRC_DIR=%BUILD_DIR%\tdesktop
-SET QT_VERSION=5_6_2
-
-call:configureBuild
-call:getDependencies
-call:setupGYP
-cd %SRC_DIR%
-
-echo Finished!
-
-GOTO:EOF
-
-:: FUNCTIONS
-:logInfo
-    echo [INFO] %~1
-GOTO:EOF
-
-:logError
-    echo [ERROR] %~1
-GOTO:EOF
-
-:getDependencies
-    call:logInfo "Clone dependencies repository"
-    git clone -q --depth 1 --branch master https://github.com/telegramdesktop/dependencies_windows.git %LIB_DIR%
-    cd %LIB_DIR%
-
-    git clone --depth 1 --branch 0.9.1 https://github.com/ericniebler/range-v3
-
-    if exist prepare.bat (
-        call prepare.bat
-    ) else (
-        call:logError "Error cloning dependencies, trying again"
-        rmdir %LIB_DIR% /S /Q
-        call:getDependencies
-    )
-GOTO:EOF
-
-:setupGYP
-    call:logInfo "Setup GYP/Ninja and generate VS solution"
-    cd %LIB_DIR%
-    git clone https://github.com/telegramdesktop/gyp.git
-    cd gyp
-    git checkout tdesktop
-    SET PATH=%PATH%;%BUILD_DIR%\Libraries\gyp;%BUILD_DIR%\Libraries\ninja;
-    cd %SRC_DIR%
-    git submodule init
-    git submodule update
-    cd %SRC_DIR%\Telegram
-    call gyp\refresh.bat --api-id 17349 --api-hash 344583e45741c457fe1862106095a5eb --ci-build
- GOTO:EOF
-
-:configureBuild
-    call:logInfo "Configuring build"
-    call:logInfo "Build version: %BUILD_VERSION%"
-    set TDESKTOP_BUILD_DEFINES=
-
-    echo %BUILD_VERSION% | findstr /C:"disable_register_custom_scheme">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_REGISTER_CUSTOM_SCHEME
-    )
-
-    echo %BUILD_VERSION% | findstr /C:"disable_crash_reports">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_CRASH_REPORTS
-    )
-
-    echo %BUILD_VERSION% | findstr /C:"disable_network_proxy">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_NETWORK_PROXY
-    )
-
-    echo %BUILD_VERSION% | findstr /C:"disable_desktop_file_generation">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_DESKTOP_FILE_GENERATION
-    )
-
-    echo %BUILD_VERSION% | findstr /C:"disable_gtk_integration">nul && (
-        set TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES%,TDESKTOP_DISABLE_GTK_INTEGRATION
-    )
-
-    if not "%TDESKTOP_BUILD_DEFINES%" == "" (
-        set "TDESKTOP_BUILD_DEFINES=%TDESKTOP_BUILD_DEFINES:~1%"
-    )
-
-    call:logInfo "Build Defines: %TDESKTOP_BUILD_DEFINES%"
-GOTO:EOF

.github/ISSUE_TEMPLATE/BUG_REPORT.md

@@ -8,7 +8,7 @@ about: Report errors or unexpected behavior.
 Thanks for reporting issues of Telegram Desktop!
 
 To make it easier for us to help you please enter detailed information below.
---> 
+-->
 ### Steps to reproduce
 1. 
 2. 
@@ -25,6 +25,8 @@ Tell us what happens instead
 
 **Version of Telegram Desktop:**
 
+**Installation source (Linux Only)** - the official website / GitHub releases / flatpak / snap / distribution package:
+
 **Used theme**:
 
 <details><summary><b>Logs</b>:</summary>

.github/no-response.yml

@@ -0,0 +1,11 @@
+# Number of days of inactivity before an Issue is closed for lack of response
+daysUntilClose: 30
+# Label requiring a response
+responseRequiredLabel: waiting for answer
+# Comment to post when closing an Issue for lack of response. Set to `false` to disable
+closeComment: >
+  This issue has been automatically closed because there has been no response
+  to our request for more information from the original author. With only the
+  information that is currently in the issue, we don't have enough information
+  to take action. Please reach out if you have or find the answers we need so
+  that we can investigate further.

.github/stale.yml

@@ -0,0 +1,21 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 180
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 30
+# Issues with these labels will never be considered stale
+exemptLabels: []
+# Label to use when marking an issue as stale
+staleLabel: stale
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: |
+  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!
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false
+# Process only issues
+only: issues

.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 +1,25 @@
+name: Docker.
+
+on:
+  push:
+    paths:
+      - '.github/workflows/docker.yml'
+      - 'Telegram/build/docker/centos_env/**'
+  pull_request:
+    paths:
+      - '.github/workflows/docker.yml'
+      - 'Telegram/build/docker/centos_env/**'
+
+jobs:
+  docker:
+    name: Ubuntu
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Clone.
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - name: Docker image build.
+        run: docker build -t telegram_desktop Telegram/build/docker/centos_env

.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 +1,138 @@
+name: Linux.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - '!docs/building-cmake.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/linux.yml'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - 'Telegram/Patches/**'
+      - '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'
+      - '!docs/building-cmake.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/linux.yml'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - 'Telegram/Patches/**'
+      - '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: CentOS 7
+    runs-on: ubuntu-latest
+    container:
+      image: docker.pkg.github.com/telegramdesktop/tdesktop/centos_env
+      credentials:
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    defaults:
+      run:
+        shell: scl enable devtoolset-9 -- bash --noprofile --norc -eo pipefail {0}
+
+    strategy:
+      matrix:
+        defines:
+          - ""
+          - "DESKTOP_APP_DISABLE_DBUS_INTEGRATION"
+          - "DESKTOP_APP_DISABLE_X11_INTEGRATION"
+          - "DESKTOP_APP_DISABLE_WAYLAND_INTEGRATION"
+          - "DESKTOP_APP_DISABLE_GTK_INTEGRATION"
+          - "LIBTGVOIP_DISABLE_ALSA"
+          - "LIBTGVOIP_DISABLE_PULSEAUDIO"
+
+    env:
+      UPLOAD_ARTIFACT: "false"
+
+    steps:
+      - name: Get repository name.
+        run: echo "REPO_NAME=${GITHUB_REPOSITORY##*/}" >> $GITHUB_ENV
+
+      - name: Clone.
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+          path: ${{ env.REPO_NAME }}
+
+      - name: First set up.
+        run: |
+          gcc --version
+          ln -s $LibrariesPath Libraries
+
+      - name: Telegram Desktop build.
+        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_C_FLAGS="-Werror" \
+          -D CMAKE_CXX_FLAGS="-Werror" \
+          -D CMAKE_EXE_LINKER_FLAGS="-s" \
+          -D TDESKTOP_API_TEST=ON \
+          -D DESKTOP_APP_USE_PACKAGED=OFF \
+          -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \
+          $DEFINE
+
+          cd ../out/Debug
+          make -j$(nproc)
+
+      - name: Check.
+        run: |
+          filePath="$REPO_NAME/out/Debug/bin/Telegram"
+          if test -f "$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 $REPO_NAME/out/Debug/bin
+          mkdir artifact
+          mv Telegram artifact/
+      - uses: actions/upload-artifact@master
+        if: env.UPLOAD_ARTIFACT == 'true'
+        name: Upload artifact.
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: ${{ env.REPO_NAME }}/out/Debug/bin/artifact/

.github/workflows/lock.yml

@@ -0,0 +1,23 @@
+name: 'Lock Threads'
+
+on:
+  schedule:
+    - cron: '0 * * * *'
+
+jobs:
+  lock:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dessant/lock-threads@v2
+        with:
+          github-token: ${{ github.token }}
+          issue-lock-inactive-days: 45
+          pr-lock-inactive-days: 45
+          issue-lock-comment: >
+            This issue has been automatically locked since there
+            has not been any recent activity after it was closed.
+            Please open a new issue for related bugs.
+          pr-lock-comment: >
+            This pull request has been automatically locked since there
+            has not been any recent activity after it was closed.
+            Please open a new issue for related bugs.

.github/workflows/mac.yml

@@ -0,0 +1,546 @@
+name: MacOS.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - '!docs/building-xcode.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/mac.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - 'Telegram/Patches/**'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/Resources/winrc/**'
+      - 'Telegram/SourceFiles/platform/win/**'
+      - 'Telegram/SourceFiles/platform/linux/**'
+      - 'Telegram/configure.bat'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - '!docs/building-xcode.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/mac.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - 'Telegram/Patches/**'
+      - '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:
+      MIN_MAC: "-mmacosx-version-min=10.12"
+      UNGUARDED: "-Werror=unguarded-availability-new"
+      GIT: "https://github.com"
+      PREFIX: "/usr/local/macos"
+      MACOSX_DEPLOYMENT_TARGET: "10.12"
+      XZ: "xz-5.2.5"
+      QT: "5_15_2"
+      OPENSSL_VER: "1_1_1"
+      QT_PREFIX: "/usr/local/desktop-app/Qt-5.15.2"
+      LIBICONV_VER: "libiconv-1.16"
+      UPLOAD_ARTIFACT: "false"
+      ONLY_CACHE: "false"
+      MANUAL_CACHING: "2"
+      DOC_PATH: "docs/building-xcode.md"
+      AUTO_CACHING: "1"
+
+    steps:
+      - name: Get repository name.
+        run: echo "REPO_NAME=${GITHUB_REPOSITORY##*/}" >> $GITHUB_ENV
+
+      - name: Clone.
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+          path: ${{ env.REPO_NAME }}
+
+      - name: First set up.
+        run: |
+          sudo chown -R `whoami`:admin /usr/local/share
+          brew install automake fdk-aac lame libass libtool libvorbis libvpx \
+          ninja opus sdl shtool texi2html theora x264 xvid yasm pkg-config
+
+          # Disable spotlight.
+          sudo mdutil -a -i off
+
+          sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
+
+          xcodebuild -version > CACHE_KEY.txt
+          echo $MIN_MAC >> CACHE_KEY.txt
+          echo $PREFIX >> 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.yml
+            echo `md5 -q $thisFile` >> CACHE_KEY.txt
+          fi
+          echo "CACHE_KEY=`md5 -q CACHE_KEY.txt`" >> $GITHUB_ENV
+
+          echo "$PWD/Libraries/depot_tools" >> $GITHUB_PATH
+
+          mkdir -p Libraries/macos
+          cd Libraries/macos
+          echo "LibrariesPath=`pwd`" >> $GITHUB_ENV
+
+          curl -o tg_owt-version.json https://api.github.com/repos/desktop-app/tg_owt/git/refs/heads/master
+
+      - name: Patches.
+        run: |
+          echo "Find necessary commit from doc."
+          checkoutCommit=$(grep -A 1 "cd patches" $REPO_NAME/$DOC_PATH | sed -n 2p)
+          cd $LibrariesPath
+          git clone $GIT/desktop-app/patches.git
+          cd Patches
+          eval $checkoutCommit
+
+      - name: XZ.
+        run: |
+          cd $LibrariesPath
+
+          wget https://tukaani.org/xz/$XZ.tar.gz
+          tar -xvzf $XZ.tar.gz
+          cd $XZ
+          CFLAGS="$MIN_MAC" LDFLAGS="$MIN_MAC" ./configure --prefix=$PREFIX
+          make -j$(nproc)
+          sudo make install
+
+      - name: Zlib.
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/desktop-app/zlib.git
+          cd zlib
+          CFLAGS="$MIN_MAC $UNGUARDED" LDFLAGS="$MIN_MAC" ./configure --prefix=$PREFIX
+          make -j$(nproc)
+          sudo make install
+
+      - name: MozJPEG.
+        run: |
+          cd $LibrariesPath
+
+          git clone -b v4.0.1-rc2 $GIT/mozilla/mozjpeg.git
+          cd mozjpeg
+          cmake -B build . \
+          -DCMAKE_BUILD_TYPE=Release \
+          -DCMAKE_INSTALL_PREFIX=$PREFIX \
+          -DWITH_JPEG8=ON \
+          -DPNG_SUPPORTED=OFF
+          cmake --build build -j$(nproc)
+          sudo cmake --install build
+
+      - name: OpenSSL cache.
+        id: cache-openssl
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/openssl_${{ env.OPENSSL_VER }}
+          key: ${{ runner.OS }}-${{ env.OPENSSL_VER }}-${{ env.CACHE_KEY }}
+      - name: OpenSSL.
+        if: steps.cache-openssl.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/openssl/openssl openssl
+          cd openssl
+          git checkout OpenSSL_"$OPENSSL_VER"-stable
+          ./Configure \
+          --prefix=$PREFIX \
+          no-tests \
+          darwin64-x86_64-cc \
+          -static \
+          $MIN_MAC
+          make build_libs -j$(nproc)
+
+          SSL_DIR=$LibrariesPath/openssl_$OPENSSL_VER
+          mkdir -p $SSL_DIR/include
+          copyLib() {
+            cp $1.a $SSL_DIR/$1.a
+          }
+          copyLib libssl
+          copyLib libcrypto
+          sudo cp -R include/. $SSL_DIR/include/
+
+      - name: Opus cache.
+        id: cache-opus
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/opus-cache
+          key: ${{ runner.OS }}-opus-${{ env.CACHE_KEY }}
+      - name: Opus.
+        if: steps.cache-opus.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/xiph/opus
+          cd opus
+          git checkout v1.3
+          ./autogen.sh
+          CFLAGS="$MIN_MAC $UNGUARDED" CPPFLAGS="$MIN_MAC $UNGUARDED" LDFLAGS="$MIN_MAC" ./configure --prefix=$PREFIX
+          make -j$(nproc)
+          sudo make DESTDIR="$LibrariesPath/opus-cache" install
+      - name: Opus install.
+        run: |
+          cd $LibrariesPath
+          sudo cp -R opus-cache/. /
+
+      - name: Libiconv cache.
+        id: cache-libiconv
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/libiconv-cache
+          key: ${{ runner.OS }}-${{ env.LIBICONV_VER }}-${{ env.CACHE_KEY }}
+      - name: Libiconv.
+        if: steps.cache-libiconv.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          wget https://ftp.gnu.org/pub/gnu/libiconv/"$LIBICONV_VER".tar.gz
+          tar -xvzf "$LIBICONV_VER".tar.gz
+          cd $LIBICONV_VER
+          CFLAGS="$MIN_MAC $UNGUARDED" CPPFLAGS="$MIN_MAC $UNGUARDED" LDFLAGS="$MIN_MAC" ./configure --enable-static --prefix=$PREFIX
+          make -j$(nproc)
+          sudo make DESTDIR="$LibrariesPath/libiconv-cache" install
+      - name: Libiconv install.
+        run: |
+          cd $LibrariesPath
+          sudo cp -R libiconv-cache/. /
+
+      - name: FFmpeg cache.
+        id: cache-ffmpeg
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/ffmpeg-cache
+          key: ${{ runner.OS }}-ffmpeg-${{ env.CACHE_KEY }}
+      - name: FFmpeg.
+        if: steps.cache-ffmpeg.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/FFmpeg/FFmpeg.git ffmpeg
+          cd ffmpeg
+          git checkout release/4.2
+          CFLAGS=`freetype-config --cflags`
+          LDFLAGS=`freetype-config --libs`
+          PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig:/usr/lib/pkgconfig:/usr/X11/lib/pkgconfig
+
+          ./configure --prefix=$LibrariesPath/ffmpeg-cache \
+          --extra-cflags="$MIN_MAC $UNGUARDED" \
+          --extra-cxxflags="$MIN_MAC $UNGUARDED" \
+          --extra-ldflags="$MIN_MAC" \
+          --x86asmexe=`pwd`/macos_yasm_wrap.sh \
+          --enable-protocol=file \
+          --enable-libopus \
+          --disable-programs \
+          --disable-doc \
+          --disable-network \
+          --disable-everything \
+          --enable-hwaccel=h264_videotoolbox \
+          --enable-hwaccel=hevc_videotoolbox \
+          --enable-hwaccel=mpeg1_videotoolbox \
+          --enable-hwaccel=mpeg2_videotoolbox \
+          --enable-hwaccel=mpeg4_videotoolbox \
+          --enable-decoder=aac \
+          --enable-decoder=aac_at \
+          --enable-decoder=aac_fixed \
+          --enable-decoder=aac_latm \
+          --enable-decoder=aasc \
+          --enable-decoder=alac \
+          --enable-decoder=alac_at \
+          --enable-decoder=flac \
+          --enable-decoder=gif \
+          --enable-decoder=h264 \
+          --enable-decoder=hevc \
+          --enable-decoder=mp1 \
+          --enable-decoder=mp1float \
+          --enable-decoder=mp2 \
+          --enable-decoder=mp2float \
+          --enable-decoder=mp3 \
+          --enable-decoder=mp3adu \
+          --enable-decoder=mp3adufloat \
+          --enable-decoder=mp3float \
+          --enable-decoder=mp3on4 \
+          --enable-decoder=mp3on4float \
+          --enable-decoder=mpeg4 \
+          --enable-decoder=msmpeg4v2 \
+          --enable-decoder=msmpeg4v3 \
+          --enable-decoder=opus \
+          --enable-decoder=pcm_alaw \
+          --enable-decoder=pcm_alaw_at \
+          --enable-decoder=pcm_f32be \
+          --enable-decoder=pcm_f32le \
+          --enable-decoder=pcm_f64be \
+          --enable-decoder=pcm_f64le \
+          --enable-decoder=pcm_lxf \
+          --enable-decoder=pcm_mulaw \
+          --enable-decoder=pcm_mulaw_at \
+          --enable-decoder=pcm_s16be \
+          --enable-decoder=pcm_s16be_planar \
+          --enable-decoder=pcm_s16le \
+          --enable-decoder=pcm_s16le_planar \
+          --enable-decoder=pcm_s24be \
+          --enable-decoder=pcm_s24daud \
+          --enable-decoder=pcm_s24le \
+          --enable-decoder=pcm_s24le_planar \
+          --enable-decoder=pcm_s32be \
+          --enable-decoder=pcm_s32le \
+          --enable-decoder=pcm_s32le_planar \
+          --enable-decoder=pcm_s64be \
+          --enable-decoder=pcm_s64le \
+          --enable-decoder=pcm_s8 \
+          --enable-decoder=pcm_s8_planar \
+          --enable-decoder=pcm_u16be \
+          --enable-decoder=pcm_u16le \
+          --enable-decoder=pcm_u24be \
+          --enable-decoder=pcm_u24le \
+          --enable-decoder=pcm_u32be \
+          --enable-decoder=pcm_u32le \
+          --enable-decoder=pcm_u8 \
+          --enable-decoder=pcm_zork \
+          --enable-decoder=vorbis \
+          --enable-decoder=wavpack \
+          --enable-decoder=wmalossless \
+          --enable-decoder=wmapro \
+          --enable-decoder=wmav1 \
+          --enable-decoder=wmav2 \
+          --enable-decoder=wmavoice \
+          --enable-encoder=libopus \
+          --enable-parser=aac \
+          --enable-parser=aac_latm \
+          --enable-parser=flac \
+          --enable-parser=h264 \
+          --enable-parser=hevc \
+          --enable-parser=mpeg4video \
+          --enable-parser=mpegaudio \
+          --enable-parser=opus \
+          --enable-parser=vorbis \
+          --enable-demuxer=aac \
+          --enable-demuxer=flac \
+          --enable-demuxer=gif \
+          --enable-demuxer=h264 \
+          --enable-demuxer=hevc \
+          --enable-demuxer=m4v \
+          --enable-demuxer=mov \
+          --enable-demuxer=mp3 \
+          --enable-demuxer=ogg \
+          --enable-demuxer=wav \
+          --enable-muxer=ogg \
+          --enable-muxer=opus
+
+          make -j$(nproc)
+          sudo make install
+      - name: FFmpeg install.
+        run: |
+          cd $LibrariesPath
+          # List of files from cmake/external/ffmpeg/CMakeLists.txt.
+          copyLib() {
+            mkdir -p ffmpeg/$1
+            \cp -fR ffmpeg-cache/lib/$1.a ffmpeg/$1/$1.a
+          }
+          copyLib libavformat
+          copyLib libavcodec
+          copyLib libswresample
+          copyLib libswscale
+          copyLib libavutil
+
+          sudo cp -R ffmpeg-cache/. $PREFIX
+          sudo cp -R ffmpeg-cache/include/. ffmpeg/
+
+      - name: OpenAL Soft.
+        run: |
+          cd $LibrariesPath
+
+          git clone --branch capture_with_webrtc $GIT/telegramdesktop/openal-soft.git
+          cd openal-soft/build
+
+          CFLAGS="$UNGUARDED" CPPFLAGS="$UNGUARDED" cmake \
+          -D CMAKE_INSTALL_PREFIX:PATH=$PREFIX \
+          -D ALSOFT_EXAMPLES=OFF \
+          -D LIBTYPE:STRING=STATIC \
+          -D CMAKE_OSX_DEPLOYMENT_TARGET:STRING=$MACOSX_DEPLOYMENT_TARGET ..
+
+          make -j$(nproc)
+          sudo make install
+
+      - name: Crashpad cache.
+        id: cache-crashpad
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/crashpad
+          key: ${{ runner.OS }}-crashpad-${{ env.CACHE_KEY }}-${{ hashFiles('**/crashpad.diff') }}-${{ hashFiles('**/mini_chromium.diff') }}
+      - name: Crashpad.
+        if: steps.cache-crashpad.outputs.cache-hit != 'true'
+        run: |
+          cd Libraries
+          echo Install GYP for Crashpad.
+          git clone https://chromium.googlesource.com/external/gyp
+          git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+          cd gyp
+          git checkout 9f2a7bb1
+          git apply $LibrariesPath/patches/gyp.diff
+          ./setup.py build
+          sudo ./setup.py install
+
+          cd $LibrariesPath
+
+          git clone https://chromium.googlesource.com/crashpad/crashpad.git
+          cd crashpad
+          git checkout feb3aa3923
+          git apply ../patches/crashpad.diff
+          cd third_party/mini_chromium
+          git clone https://chromium.googlesource.com/chromium/mini_chromium
+          cd mini_chromium
+          git checkout 7c5b0c1ab4
+          git apply ../../../../patches/mini_chromium.diff
+          cd ../../gtest
+          git clone https://chromium.googlesource.com/external/github.com/google/googletest gtest
+          cd gtest
+          git checkout d62d6c6556
+          cd ../../..
+
+          build/gyp_crashpad.py -Dmac_deployment_target=10.10
+          ninja -C out/Debug
+
+      - name: Qt 5.15.2 cache.
+        id: cache-qt
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/qt-cache
+          key: ${{ runner.OS }}-qt-${{ env.CACHE_KEY }}-${{ hashFiles('**/qtbase_5_15_2/*') }}
+      - name: Use cached Qt 5.15.2.
+        if: steps.cache-qt.outputs.cache-hit == 'true'
+        run: |
+          cd $LibrariesPath
+          mv qt-cache Qt-5.15.2
+          sudo mkdir -p $QT_PREFIX
+          sudo mv -f Qt-5.15.2 "$(dirname "$QT_PREFIX")"/
+      - name: Qt 5.15.2 build.
+        if: steps.cache-qt.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone git://code.qt.io/qt/qt5.git qt_$QT
+          cd qt_$QT
+          perl init-repository --module-subset=qtbase,qtimageformats
+          git checkout v5.15.2
+          git submodule update qtbase
+          git submodule update qtimageformats
+          cd qtbase
+          find ../../patches/qtbase_$QT -type f -print0 | sort -z | xargs -0 git apply
+          cd ..
+
+          ./configure \
+          -prefix "$QT_PREFIX" \
+          -debug \
+          -force-debug-info \
+          -opensource \
+          -confirm-license \
+          -static \
+          -opengl desktop \
+          -no-openssl \
+          -securetransport \
+          -nomake examples \
+          -nomake tests \
+          -platform macx-clang \
+          -I "$PREFIX/include" \
+          LIBJPEG_LIBS="$PREFIX/lib/libjpeg.a" \
+          ZLIB_LIBS="$PREFIX/lib/libz.a"
+
+          make -j$(nproc)
+          sudo make install
+
+          make clean
+          cp -r $QT_PREFIX $LibrariesPath/qt-cache
+
+      - name: WebRTC cache.
+        id: cache-webrtc
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/tg_owt
+          key: ${{ runner.OS }}-webrtc-${{ env.CACHE_KEY }}-${{ hashFiles('**/tg_owt-version.json') }}
+      - name: WebRTC.
+        if: steps.cache-webrtc.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone --recursive $GIT/desktop-app/tg_owt.git
+          mkdir -p tg_owt/out/Debug
+          cd tg_owt/out/Debug
+          cmake -G Ninja \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DTG_OWT_SPECIAL_TARGET=mac \
+          -DTG_OWT_LIBJPEG_INCLUDE_PATH=$PREFIX/include \
+          -DTG_OWT_OPENSSL_INCLUDE_PATH=`pwd`/../../../openssl_$OPENSSL_VER/include \
+          -DTG_OWT_OPUS_INCLUDE_PATH=$PREFIX/include/opus \
+          -DTG_OWT_FFMPEG_INCLUDE_PATH=$PREFIX/include \
+          ../..
+          ninja
+
+          # Cleanup.
+          cd $LibrariesPath/tg_owt
+          mv out/Debug/libtg_owt.a libtg_owt.a
+          rm -rf out
+          mkdir -p out/Debug
+          mv libtg_owt.a out/Debug/libtg_owt.a
+
+      - 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_C_FLAGS="-Werror" \
+          -D CMAKE_CXX_FLAGS="-Werror" \
+          -D TDESKTOP_API_TEST=ON \
+          -D DESKTOP_APP_USE_PACKAGED=OFF \
+          -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \
+          $DEFINE
+
+          cd ../out
+
+          xcoderun='xcodebuild build -project Telegram.xcodeproj -scheme Telegram -destination "platform=macOS,arch=x86_64" -configuration Debug'
+          bash -c "$xcoderun" || bash -c "$xcoderun" || bash -c "$xcoderun"
+
+      - 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@master
+        if: env.UPLOAD_ARTIFACT == 'true'
+        name: Upload artifact.
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: ${{ env.REPO_NAME }}/out/Debug/artifact/

.github/workflows/master_updater.yml

@@ -0,0 +1,35 @@
+name: Master branch updater.
+
+on:
+  release:
+    types: released
+
+jobs:
+  updater:
+    runs-on: ubuntu-latest
+    env:
+      SKIP: "0"
+      to_branch: "master"
+    steps:
+      - uses: actions/checkout@v1
+        if: env.SKIP == '0'
+      - name: Push the code to the master branch.
+        if: env.SKIP == '0'
+        run: |
+          token=${{ secrets.TOKEN_FOR_MASTER_UPDATER }}
+          if [ -z "${token}" ]; then
+              echo "Token is unset. Nothing to do."
+              exit 0
+          fi
+
+          url=https://x-access-token:$token@github.com/$GITHUB_REPOSITORY
+          latest_tag=$(git describe --tags --abbrev=0)
+          echo "Latest tag: $latest_tag"
+
+          git remote set-url origin $url
+          git remote -v
+          git checkout master
+          git merge $latest_tag
+
+          git push origin HEAD:refs/heads/$to_branch
+          echo "Done!"

.github/workflows/snap.yml

@@ -0,0 +1,90 @@
+name: Snap.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/snap.yml'
+      - 'Telegram/build/**'
+      - 'Telegram/Patches/**'
+      - '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/Patches/**'
+      - '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: Ubuntu
+    runs-on: ubuntu-latest
+
+    env:
+      UPLOAD_ARTIFACT: "false"
+
+    steps:
+      - name: Clone.
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: First set up.
+        run: |
+          sudo apt-get purge --autoremove lxd
+
+          sudo snap install --classic snapcraft
+          sudo snap install lxd
+
+          # Workaround for snapcraft
+          # See https://forum.snapcraft.io/t/13258
+          sudo chown root:root /
+
+          sudo usermod -aG lxd $USER
+
+          sudo snap run lxd init --auto
+          sudo snap run lxd waitready
+
+      - name: Telegram Desktop snap build.
+        run: sg lxd -c 'snap run snapcraft --use-lxd'
+
+      - name: Move artifact.
+        if: env.UPLOAD_ARTIFACT == 'true'
+        run: |
+          artifact_name=$(echo telegram-desktop_*.snap)
+          echo "ARTIFACT_NAME=$artifact_name" >> $GITHUB_ENV
+
+          mkdir artifact
+          mv $artifact_name artifact
+
+      - uses: actions/upload-artifact@master
+        if: env.UPLOAD_ARTIFACT == 'true'
+        name: Upload artifact.
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: artifact

.github/workflows/user_agent_updater.yml

@@ -0,0 +1,18 @@
+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 * *"
+  pull_request_target:
+    types: [closed]
+
+jobs:
+  User-agent:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: desktop-app/action_code_updater@master
+        with:
+          type: "user-agent"

.github/workflows/win.yml

@@ -0,0 +1,431 @@
+name: Windows.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '**.md'
+      - '!docs/building-msvc.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/win.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - 'Telegram/Patches/**'
+      - '!Telegram/Patches/build_ffmpeg_win.sh'
+      - '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-msvc.md'
+      - 'changelog.txt'
+      - 'LEGAL'
+      - 'LICENSE'
+      - '.github/**'
+      - '!.github/workflows/win.yml'
+      - 'lib/xdg/**'
+      - 'snap/**'
+      - 'Telegram/build/**'
+      - 'Telegram/Patches/**'
+      - '!Telegram/Patches/build_ffmpeg_win.sh'
+      - 'Telegram/Resources/uwp/**'
+      - 'Telegram/SourceFiles/platform/linux/**'
+      - 'Telegram/SourceFiles/platform/mac/**'
+      - '!Telegram/Patches/breakpad.diff'
+      - 'Telegram/Telegram/**'
+      - 'Telegram/configure.sh'
+      - 'Telegram/Telegram.plist'
+
+jobs:
+
+  windows:
+    name: Windows
+    runs-on: windows-latest
+
+    strategy:
+      matrix:
+        defines:
+          - ""
+    env:
+      SDK: "10.0.18362.0"
+      VC: "call vcvars32.bat && cd Libraries"
+      GIT: "https://github.com"
+      QT: "5_15_2"
+      QT_VER: "5.15.2"
+      OPENSSL_VER: "1_1_1"
+      UPLOAD_ARTIFACT: "false"
+      ONLY_CACHE: "false"
+      MANUAL_CACHING: "2"
+      DOC_PATH: "docs/building-msvc.md"
+      AUTO_CACHING: "1"
+
+    defaults:
+      run:
+        shell: cmd
+
+    steps:
+      - name: Get repository name.
+        shell: bash
+        run: echo "REPO_NAME=${GITHUB_REPOSITORY##*/}" >> $GITHUB_ENV
+
+      - name: Set up environment paths.
+        shell: bash
+        run: |
+          echo "C:\\Strawberry\\perl\\bin\\" >> $GITHUB_PATH
+          echo "C:\\Program Files\\NASM\\" >> $GITHUB_PATH
+          echo "C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Enterprise\\VC\\Auxiliary\\Build\\" >> $GITHUB_PATH
+
+          mkdir Libraries && cd Libraries
+          echo "Convert unix path to win path."
+          p=`pwd | sed 's#^/[d]#d:#g' |sed 's#/#\\\\#g'`
+          echo "LibrariesPath=$p" >> $GITHUB_ENV
+
+      - name: Save msbuild version.
+        run: |
+          call vcvars32.bat
+          msbuild -version > CACHE_KEY.txt
+
+      - name: Clone.
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+          path: ${{ env.REPO_NAME }}
+
+      - name: Generate cache key.
+        shell: bash
+        run: |
+          curl -o $LibrariesPath/tg_owt-version.json https://api.github.com/repos/desktop-app/tg_owt/git/refs/heads/master
+          echo $MANUAL_CACHING >> CACHE_KEY.txt
+          if [ "$AUTO_CACHING" == "1" ]; then
+            thisFile=$REPO_NAME/.github/workflows/win.yml
+            echo `md5sum $thisFile | awk '{ print $1 }'` >> CACHE_KEY.txt
+          fi
+          echo "CACHE_KEY=`md5sum CACHE_KEY.txt | awk '{ print $1 }'`" >> $GITHUB_ENV
+
+      - name: Choco installs.
+        run: choco install --no-progress -y nasm yasm jom ninja
+
+      - name: Patches.
+        shell: bash
+        run: |
+          echo "Find necessary commit from doc."
+          checkoutCommit=$(grep -A 1 "cd patches" $REPO_NAME/$DOC_PATH | sed -n 2p)
+          cd $LibrariesPath
+          git clone $GIT/desktop-app/patches.git
+          cd Patches
+          eval $checkoutCommit
+
+      - name: Find any version of Python 2.
+        shell: bash
+        run: |
+          echo "Find any version of Python 2."
+          p=`ls /c/hostedtoolcache/windows/python | grep "^2" | tail -1`
+          if [ -z "$p" ]; then
+            echo "Python 2 is not found."
+            exit 1
+          fi
+          echo "PY2=C:\\hostedtoolcache\\windows\\Python\\$p\\x64" >> $GITHUB_ENV
+          echo "Found $p."
+
+      - name: LZMA.
+        run: |
+          %VC%
+
+          git clone %GIT%/telegramdesktop/lzma.git
+          cd lzma
+          cd C\Util\LzmaLib
+          msbuild -m LzmaLib.sln /property:Configuration=Debug
+
+      - name: OpenSSL cache.
+        id: cache-openssl
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/openssl_${{ env.OPENSSL_VER }}
+          key: ${{ runner.OS }}-${{ env.CACHE_KEY }}-${{ env.OPENSSL_VER }}
+      - name: OpenSSL.
+        if: steps.cache-openssl.outputs.cache-hit != 'true'
+        run: |
+          %VC%
+
+          git clone %GIT%/openssl/openssl.git openssl_%OPENSSL_VER%
+          cd openssl_%OPENSSL_VER%
+          git checkout OpenSSL_%OPENSSL_VER%-stable
+          perl Configure no-shared no-tests debug-VC-WIN32
+          nmake
+          mkdir out32.dbg
+          move libcrypto.lib out32.dbg
+          move libssl.lib out32.dbg
+          move ossl_static.pdb out32.dbg\ossl_static
+          nmake clean
+          move out32.dbg\ossl_static out32.dbg\ossl_static.pdb
+          perl Configure no-shared no-tests VC-WIN32
+          nmake
+          mkdir out32
+          move libcrypto.lib out32
+          move libssl.lib out32
+          move ossl_static.pdb out32
+
+          rmdir /S /Q test
+          rmdir /S /Q .git
+
+      - name: Zlib.
+        run: |
+          %VC%
+
+          git clone %GIT%/telegramdesktop/zlib.git
+          cd zlib
+          git checkout tdesktop
+          cd contrib\vstudio\vc14
+          msbuild -m zlibstat.vcxproj /property:Configuration=Debug
+
+      - name: MozJPEG.
+        shell: cmd
+        run: |
+          %VC%
+
+          git clone -b v4.0.1-rc2 %GIT%/mozilla/mozjpeg.git
+          cd mozjpeg
+          cmake . ^
+          -G "Visual Studio 16 2019" ^
+          -A Win32 ^
+          -DWITH_JPEG8=ON ^
+          -DPNG_SUPPORTED=OFF
+          cmake --build . --config Debug
+
+      - name: OpenAL Soft cache.
+        id: cache-openal
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/openal-soft
+          key: ${{ runner.OS }}-openal-soft-${{ env.CACHE_KEY }}
+      - name: OpenAL Soft.
+        if: steps.cache-openal.outputs.cache-hit != 'true'
+        run: |
+          %VC%
+
+          git clone -b openal-soft-1.21.0 --depth=1 %GIT%/kcat/openal-soft.git
+          cd openal-soft\build
+          cmake .. ^
+          -G "Visual Studio 16 2019" ^
+          -A Win32 ^
+          -D LIBTYPE:STRING=STATIC ^
+          -D FORCE_STATIC_VCRT=ON ^
+          -D ALSOFT_BACKEND_DSOUND=OFF
+
+          msbuild -m OpenAL.vcxproj /property:Configuration=Debug
+
+      - name: Breakpad cache.
+        id: cache-breakpad
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/breakpad
+          key: ${{ runner.OS }}-breakpad-${{ env.CACHE_KEY }}-${{ hashFiles('**/breakpad.diff') }}
+      - name: Breakpad.
+        env:
+          GYP_MSVS_OVERRIDE_PATH: 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\'
+          GYP_MSVS_VERSION: 2019
+        if: steps.cache-breakpad.outputs.cache-hit != 'true'
+        run: |
+          cd %LibrariesPath%
+
+          git clone %GIT%/telegramdesktop/gyp.git
+          cd gyp
+          SET PATH=%PY2%;%cd%;%PATH%
+          git checkout tdesktop
+
+          cd %LibrariesPath%
+
+          git clone %GIT%/google/breakpad
+          cd breakpad
+          git checkout a1dbcdcb43
+          git apply ../patches/breakpad.diff
+          cd src
+          git clone %GIT%/google/googletest testing
+          cd client\windows
+          call gyp --no-circular-check breakpad_client.gyp --format=ninja
+          cd ..\..
+          ninja -C out/Debug common crash_generation_client exception_handler
+          ninja -C out/Release common crash_generation_client exception_handler
+          cd tools\windows\dump_syms
+          call gyp dump_syms.gyp
+
+          call vcvars32.bat
+          msbuild -m dump_syms.vcxproj /property:Configuration=Release
+
+      - name: Opus cache.
+        id: cache-opus
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/opus
+          key: ${{ runner.OS }}-opus-${{ env.CACHE_KEY }}
+      - name: Opus.
+        if: steps.cache-opus.outputs.cache-hit != 'true'
+        run: |
+          %VC%
+
+          git clone %GIT%/telegramdesktop/opus.git
+          cd opus
+          git checkout tdesktop
+          cd win32\VS2015
+          msbuild -m opus.sln /property:Configuration=Debug /property:Platform="Win32"
+          msbuild -m opus.sln /property:Configuration=Release /property:Platform="Win32"
+
+      - name: FFmpeg cache.
+        id: cache-ffmpeg
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/ffmpeg
+          key: ${{ runner.OS }}-ffmpeg-${{ env.CACHE_KEY }}-2-${{ hashFiles('**/build_ffmpeg_win.sh') }}
+      - name: FFmpeg.
+        if: steps.cache-ffmpeg.outputs.cache-hit != 'true'
+        run: |
+          %VC%
+          choco install --no-progress -y msys2
+
+          git clone %GIT%/FFmpeg/FFmpeg.git ffmpeg
+          cd ffmpeg
+          git checkout release/4.2
+          set CHERE_INVOKING=enabled_from_arguments
+          set MSYS2_PATH_TYPE=inherit
+          call c:\tools\msys64\usr\bin\bash --login ../patches/build_ffmpeg_win.sh
+
+          rmdir /S /Q .git
+
+      - name: Qt 5.15.2 cache.
+        id: cache-qt
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/Qt-${{ env.QT_VER }}
+          key: ${{ runner.OS }}-qt-${{ env.CACHE_KEY }}-${{ hashFiles('**/qtbase_5_15_2/*') }}
+      - name: Configure Qt 5.15.2.
+        if: steps.cache-qt.outputs.cache-hit != 'true'
+        run: |
+          %VC%
+
+          git clone git://code.qt.io/qt/qt5.git qt_%QT%
+          cd qt_%QT%
+          perl init-repository --module-subset=qtbase,qtimageformats
+          git checkout v%QT_VER%
+          git submodule update qtbase
+          git submodule update qtimageformats
+          cd qtbase
+          for /r %%i in (..\..\patches\qtbase_%QT%\*) do git apply %%i
+          cd ..
+
+          SET SSL=%LibrariesPath%\openssl_%OPENSSL_VER%
+          SET LIBS=libcrypto.lib Ws2_32.lib Gdi32.lib Advapi32.lib Crypt32.lib User32.lib
+
+          configure ^
+          -prefix "%LibrariesPath%\Qt-%QT_VER%" ^
+          -debug ^
+          -force-debug-info ^
+          -opensource ^
+          -confirm-license ^
+          -static ^
+          -static-runtime -I "%SSL%\include" ^
+          -no-opengl ^
+          -openssl-linked ^
+          OPENSSL_LIBS_DEBUG="%SSL%\out32.dbg\libssl.lib %SSL%\out32.dbg\%LIBS%" ^
+          OPENSSL_LIBS_RELEASE="%SSL%\out32\libssl.lib %SSL%\out32\%LIBS%" ^
+          -mp ^
+          -nomake examples ^
+          -nomake tests ^
+          -platform win32-msvc ^
+          -I "%LibrariesPath%\mozjpeg" ^
+          LIBJPEG_LIBS_DEBUG="%LibrariesPath%\mozjpeg\Debug\jpeg-static.lib" ^
+          LIBJPEG_LIBS_RELEASE="%LibrariesPath%\mozjpeg\Release\jpeg-static.lib"
+      - name: Qt 5.15.2 build.
+        if: steps.cache-qt.outputs.cache-hit != 'true'
+        run: |
+          %VC%
+          cd qt_%QT%
+
+          jom -j%NUMBER_OF_PROCESSORS%
+          jom -j%NUMBER_OF_PROCESSORS% install
+
+          cd ..
+          rmdir /S /Q qt_%QT%
+
+      - name: WebRTC cache.
+        id: cache-webrtc
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/tg_owt
+          key: ${{ runner.OS }}-webrtc-${{ env.CACHE_KEY }}-${{ hashFiles('**/tg_owt-version.json') }}
+      - name: WebRTC.
+        if: steps.cache-webrtc.outputs.cache-hit != 'true'
+        run: |
+          %VC%
+
+          git clone --recursive %GIT%/desktop-app/tg_owt.git
+          mkdir tg_owt\out\Debug
+          cd tg_owt\out\Debug
+          cmake -G Ninja ^
+          -DCMAKE_BUILD_TYPE=Debug ^
+          -DTG_OWT_SPECIAL_TARGET=win ^
+          -DTG_OWT_LIBJPEG_INCLUDE_PATH=%cd%/../../../mozjpeg ^
+          -DTG_OWT_OPENSSL_INCLUDE_PATH=%cd%/../../../openssl_%OPENSSL_VER%/include ^
+          -DTG_OWT_OPUS_INCLUDE_PATH=%cd%/../../../opus/include ^
+          -DTG_OWT_FFMPEG_INCLUDE_PATH=%cd%/../../../ffmpeg ^
+          ../..
+
+          ninja
+
+          :: Cleanup.
+          cd %LibrariesPath%\tg_owt
+          move out\Debug\tg_owt.lib tg_owt.lib
+          rmdir /S /Q out
+          mkdir out\Debug
+          move tg_owt.lib out\Debug\tg_owt.lib
+
+      - name: Read defines.
+        shell: bash
+        run: |
+          DEFINE=""
+          if [ -n "${{ 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" >> $GITHUB_ENV
+          fi
+          echo "TDESKTOP_BUILD_DEFINE=$DEFINE" >> $GITHUB_ENV
+
+      - name: Telegram Desktop build.
+        if: env.ONLY_CACHE == 'false'
+        run: |
+          cd %REPO_NAME%\Telegram
+
+          call configure.bat ^
+          -D TDESKTOP_API_TEST=ON ^
+          -D DESKTOP_APP_USE_PACKAGED=OFF ^
+          -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF ^
+          -D DESKTOP_APP_NO_PDB=ON ^
+          %TDESKTOP_BUILD_DEFINE% ^
+          -DCMAKE_SYSTEM_VERSION=%SDK%
+
+          call vcvars32.bat
+          cd ..\out
+          msbuild -m Telegram.sln /nologo /p:Configuration=Debug,Platform=Win32
+
+      - name: Move artifact.
+        if: env.UPLOAD_ARTIFACT == 'true'
+        run: |
+          cd %REPO_NAME%\out\Debug
+          mkdir artifact
+          move Telegram.exe artifact/
+      - uses: actions/upload-artifact@master
+        name: Upload artifact.
+        if: env.UPLOAD_ARTIFACT == 'true'
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: ${{ env.REPO_NAME }}\out\Debug\artifact\

.gitignore

@@ -43,6 +43,7 @@ stage
 /snap/plugins/__pycache__
 
 /Telegram/*.user.*
+*.txt.user
 *.pro.user
 /Linux/
 /Telegram/Makefile

.gitmodules

@@ -1,9 +1,6 @@
 [submodule "Telegram/ThirdParty/libtgvoip"]
 	path = Telegram/ThirdParty/libtgvoip
 	url = https://github.com/telegramdesktop/libtgvoip
-[submodule "Telegram/ThirdParty/variant"]
-	path = Telegram/ThirdParty/variant
-	url = https://github.com/mapbox/variant
 [submodule "Telegram/ThirdParty/GSL"]
 	path = Telegram/ThirdParty/GSL
 	url = https://github.com/Microsoft/GSL.git
@@ -28,9 +25,6 @@
 [submodule "Telegram/lib_base"]
 	path = Telegram/lib_base
 	url = https://github.com/desktop-app/lib_base.git
-[submodule "Telegram/gyp/helpers"]
-	path = Telegram/gyp/helpers
-	url = https://github.com/desktop-app/gyp_helpers.git
 [submodule "Telegram/codegen"]
 	path = Telegram/codegen
 	url = https://github.com/desktop-app/codegen.git
@@ -49,3 +43,51 @@
 [submodule "Telegram/lib_spellcheck"]
 	path = Telegram/lib_spellcheck
 	url = https://github.com/desktop-app/lib_spellcheck
+[submodule "Telegram/lib_storage"]
+	path = Telegram/lib_storage
+	url = https://github.com/desktop-app/lib_storage.git
+[submodule "cmake"]
+	path = cmake
+	url = https://github.com/desktop-app/cmake_helpers.git
+[submodule "Telegram/ThirdParty/expected"]
+	path = Telegram/ThirdParty/expected
+	url = https://github.com/TartanLlama/expected
+[submodule "Telegram/ThirdParty/QR"]
+	path = Telegram/ThirdParty/QR
+	url = https://github.com/nayuki/QR-Code-generator
+[submodule "Telegram/lib_qr"]
+	path = Telegram/lib_qr
+	url = https://github.com/desktop-app/lib_qr.git
+[submodule "Telegram/ThirdParty/libdbusmenu-qt"]
+	path = Telegram/ThirdParty/libdbusmenu-qt
+	url = https://github.com/desktop-app/libdbusmenu-qt.git
+[submodule "Telegram/ThirdParty/hunspell"]
+	path = Telegram/ThirdParty/hunspell
+	url = https://github.com/hunspell/hunspell
+[submodule "Telegram/ThirdParty/range-v3"]
+	path = Telegram/ThirdParty/range-v3
+	url = https://github.com/ericniebler/range-v3.git
+[submodule "Telegram/ThirdParty/fcitx-qt5"]
+	path = Telegram/ThirdParty/fcitx-qt5
+	url = https://github.com/fcitx/fcitx-qt5.git
+[submodule "Telegram/ThirdParty/nimf"]
+	path = Telegram/ThirdParty/nimf
+	url = https://github.com/hamonikr/nimf.git
+[submodule "Telegram/ThirdParty/hime"]
+	path = Telegram/ThirdParty/hime
+	url = https://github.com/hime-ime/hime.git
+[submodule "Telegram/ThirdParty/qt5ct"]
+	path = Telegram/ThirdParty/qt5ct
+	url = https://github.com/desktop-app/qt5ct.git
+[submodule "Telegram/ThirdParty/fcitx5-qt"]
+	path = Telegram/ThirdParty/fcitx5-qt
+	url = https://github.com/fcitx/fcitx5-qt.git
+[submodule "Telegram/lib_webrtc"]
+	path = Telegram/lib_webrtc
+	url = https://github.com/desktop-app/lib_webrtc.git
+[submodule "Telegram/ThirdParty/tgcalls"]
+	path = Telegram/ThirdParty/tgcalls
+	url = https://github.com/TelegramMessenger/tgcalls.git
+[submodule "Telegram/lib_webview"]
+	path = Telegram/lib_webview
+	url = https://github.com/desktop-app/lib_webview.git

.travis.yml

@@ -1,65 +0,0 @@
-sudo: required
-dist: trusty
-
-language: cpp
-
-cache:
-  directories:
-    - $HOME/travisCacheDir
-
-env:
-  matrix:
-   - BUILD_VERSION=""
-   - BUILD_VERSION="disable_register_custom_scheme"
-   - BUILD_VERSION="disable_crash_reports"
-   - BUILD_VERSION="disable_network_proxy"
-   - BUILD_VERSION="disable_desktop_file_generation"
-   - BUILD_VERSION="disable_gtk_integration"
-
-matrix:
-  fast_finish: true
-
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - bison
-      - build-essential
-      - cmake
-      - devscripts
-      - dpatch
-      - equivs
-      - fakeroot
-      - g++-8
-      - gcc-8
-      - git
-      - gnome-common
-      - gobject-introspection
-      - gtk-doc-tools
-      - libappindicator-dev
-      - libasound2-dev
-      - libdbusmenu-glib-dev
-      - liblzma-dev
-      - libopus-dev
-      - libpulse-dev
-      - libssl-dev
-      - libdee-dev
-      - libva-dev
-      - libvdpau-dev
-      - libxcb-xkb-dev
-      - libxkbcommon-dev
-      - lintian
-      - quilt
-      - valac
-      - xutils-dev
-      - yasm
-
-before_install:
-  - export CXX="g++-8" CC="gcc-8"
-  - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-8
-  - sudo update-alternatives --config gcc
-  - g++ --version
-
-script:
-  - .travis/build.sh

.travis/build.sh

@@ -1,726 +0,0 @@
-#!/bin/bash
-
-set -e
-
-REPO="$PWD"
-
-BUILD="$REPO/build"
-UPSTREAM="$REPO/upstream"
-EXTERNAL="$REPO/external"
-CACHE="$HOME/travisCacheDir"
-
-QT_WAS_BUILT="0"
-
-QT_VERSION=5.12.5
-
-XKB_PATH="$BUILD/libxkbcommon"
-XKB_CACHE_VERSION="3"
-
-QT_PATH="$BUILD/qt"
-QT_CACHE_VERSION="4"
-QT_PATCH="$EXTERNAL/patches/qtbase_${QT_VERSION//\./_}.diff"
-
-BREAKPAD_PATH="$BUILD/breakpad"
-BREAKPAD_CACHE_VERSION="3"
-
-GYP_PATH="$BUILD/gyp"
-GYP_CACHE_VERSION="3"
-GYP_PATCH="$EXTERNAL/patches/gyp.diff"
-
-RANGE_PATH="$BUILD/range-v3"
-RANGE_CACHE_VERSION="3"
-
-VA_PATH="$BUILD/libva"
-VA_CACHE_VERSION="3"
-
-VDPAU_PATH="$BUILD/libvdpau"
-VDPAU_CACHE_VERSION="3"
-
-FFMPEG_PATH="$BUILD/ffmpeg"
-FFMPEG_CACHE_VERSION="3"
-
-OPENAL_PATH="$BUILD/openal-soft"
-OPENAL_CACHE_VERSION="4"
-
-GYP_DEFINES=""
-
-[[ ! $MAKE_ARGS ]] && MAKE_ARGS="--silent -j4"
-
-run() {
-  # Move files to subdir
-  cd ..
-  mv tdesktop tdesktop2
-  mkdir tdesktop
-  mv tdesktop2 "$UPSTREAM"
-
-  mkdir "$BUILD"
-
-  build
-  check
-}
-
-build() {
-  mkdir -p "$EXTERNAL"
-
-  BUILD_VERSION_DATA=$(echo $BUILD_VERSION | cut -d'-' -f 1)
-
-  getPatches
-
-  # libxkbcommon
-  getXkbCommon
-
-  # libva
-  getVa
-
-  # libvdpau
-  getVdpau
-
-  # ffmpeg
-  getFFmpeg
-
-  # openal_soft
-  getOpenAL
-
-  # Patched Qt
-  getCustomQt
-
-  # Breakpad
-  getBreakpad
-
-  # Patched GYP (supports cmake precompiled headers)
-  getGYP
-
-  # Range v3
-  getRange
-
-  # Guideline Support Library
-  getGSL
-
-  if [ "$QT_WAS_BUILT" == "1" ]; then
-    error_msg "Qt was built, please restart the job :("
-    exit 1
-  fi
-
-  # Configure the build
-  if [[ $BUILD_VERSION == *"disable_register_custom_scheme"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_REGISTER_CUSTOM_SCHEME"
-  fi
-
-  if [[ $BUILD_VERSION == *"disable_crash_reports"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_CRASH_REPORTS"
-  fi
-
-  if [[ $BUILD_VERSION == *"disable_network_proxy"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_NETWORK_PROXY"
-  fi
-
-  if [[ $BUILD_VERSION == *"disable_desktop_file_generation"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_DESKTOP_FILE_GENERATION"
-  fi
-
-  if [[ $BUILD_VERSION == *"disable_gtk_integration"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_GTK_INTEGRATION"
-  fi
-
-  info_msg "Build defines: ${GYP_DEFINES}"
-
-  buildTelegram
-
-  travisEndFold
-}
-
-getPatches() {
-  cd "$EXTERNAL"
-  git clone --depth 1 https://github.com/desktop-app/patches
-}
-
-getXkbCommon() {
-  travisStartFold "Getting xkbcommon"
-
-  local XKB_CACHE="$CACHE/libxkbcommon"
-  local XKB_CACHE_FILE="$XKB_CACHE/.cache.txt"
-  local XKB_CACHE_KEY="${XKB_CACHE_VERSION}"
-  local XKB_CACHE_OUTDATED="1"
-
-  if [ ! -d "$XKB_CACHE" ]; then
-    mkdir -p "$XKB_CACHE"
-  fi
-
-  ln -sf "$XKB_CACHE" "$XKB_PATH"
-
-  if [ -f "$XKB_CACHE_FILE" ]; then
-    local XKB_CACHE_KEY_FOUND=`tail -n 1 $XKB_CACHE_FILE`
-    if [ "$XKB_CACHE_KEY" == "$XKB_CACHE_KEY_FOUND" ]; then
-      XKB_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$XKB_CACHE_KEY_FOUND' does not match '$XKB_CACHE_KEY', rebuilding libxkbcommon"
-    fi
-  fi
-  if [ "$XKB_CACHE_OUTDATED" == "1" ]; then
-    buildXkbCommon
-    sudo echo $XKB_CACHE_KEY > "$XKB_CACHE_FILE"
-  else
-    info_msg "Using cached libxkbcommon"
-  fi
-}
-
-buildXkbCommon() {
-  info_msg "Downloading and building libxkbcommon"
-
-  if [ -d "$EXTERNAL/libxkbcommon" ]; then
-    rm -rf "$EXTERNAL/libxkbcommon"
-  fi
-  cd $XKB_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://github.com/xkbcommon/libxkbcommon.git
-
-  cd "$EXTERNAL/libxkbcommon"
-  git checkout xkbcommon-0.8.4
-  ./autogen.sh --prefix=$XKB_PATH
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getRange() {
-  travisStartFold "Getting range-v3"
-
-  local RANGE_CACHE="$CACHE/range-v3"
-  local RANGE_CACHE_FILE="$RANGE_CACHE/.cache.txt"
-  local RANGE_CACHE_KEY="${RANGE_CACHE_VERSION}"
-  local RANGE_CACHE_OUTDATED="1"
-
-  if [ ! -d "$RANGE_CACHE" ]; then
-    mkdir -p "$RANGE_CACHE"
-  fi
-
-  ln -sf "$RANGE_CACHE" "$RANGE_PATH"
-
-  if [ -f "$RANGE_CACHE_FILE" ]; then
-    local RANGE_CACHE_KEY_FOUND=`tail -n 1 $RANGE_CACHE_FILE`
-    if [ "$RANGE_CACHE_KEY" == "$RANGE_CACHE_KEY_FOUND" ]; then
-      RANGE_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$RANGE_CACHE_KEY_FOUND' does not match '$RANGE_CACHE_KEY', getting range-v3"
-    fi
-  fi
-  if [ "$RANGE_CACHE_OUTDATED" == "1" ]; then
-    buildRange
-    sudo echo $RANGE_CACHE_KEY > "$RANGE_CACHE_FILE"
-  else
-    info_msg "Using cached range-v3"
-  fi
-}
-
-buildRange() {
-  info_msg "Downloading range-v3"
-
-  if [ -d "$EXTERNAL/range-v3" ]; then
-    rm -rf "$EXTERNAL/range-v3"
-  fi
-  cd $RANGE_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone --depth 1 --branch 0.9.1 https://github.com/ericniebler/range-v3
-
-  cd "$EXTERNAL/range-v3"
-  cp -r * "$RANGE_PATH/"
-}
-
-getVa() {
-  travisStartFold "Getting libva"
-
-  local VA_CACHE="$CACHE/libva"
-  local VA_CACHE_FILE="$VA_CACHE/.cache.txt"
-  local VA_CACHE_KEY="${VA_CACHE_VERSION}"
-  local VA_CACHE_OUTDATED="1"
-
-  if [ ! -d "$VA_CACHE" ]; then
-    mkdir -p "$VA_CACHE"
-  fi
-
-  ln -sf "$VA_CACHE" "$VA_PATH"
-
-  if [ -f "$VA_CACHE_FILE" ]; then
-    local VA_CACHE_KEY_FOUND=`tail -n 1 $VA_CACHE_FILE`
-    if [ "$VA_CACHE_KEY" == "$VA_CACHE_KEY_FOUND" ]; then
-      VA_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$VA_CACHE_KEY_FOUND' does not match '$VA_CACHE_KEY', rebuilding libva"
-    fi
-  fi
-  if [ "$VA_CACHE_OUTDATED" == "1" ]; then
-    buildVa
-    sudo echo $VA_CACHE_KEY > "$VA_CACHE_FILE"
-  else
-    info_msg "Using cached libva"
-  fi
-}
-
-buildVa() {
-  info_msg "Downloading and building libva"
-
-  if [ -d "$EXTERNAL/libva" ]; then
-    rm -rf "$EXTERNAL/libva"
-  fi
-  cd $VA_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://github.com/01org/libva
-
-  cd "$EXTERNAL/libva"
-  ./autogen.sh --prefix=$VA_PATH --enable-static
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getVdpau() {
-  travisStartFold "Getting libvdpau"
-
-  local VDPAU_CACHE="$CACHE/libvdpau"
-  local VDPAU_CACHE_FILE="$VDPAU_CACHE/.cache.txt"
-  local VDPAU_CACHE_KEY="${VDPAU_CACHE_VERSION}"
-  local VDPAU_CACHE_OUTDATED="1"
-
-  if [ ! -d "$VDPAU_CACHE" ]; then
-    mkdir -p "$VDPAU_CACHE"
-  fi
-
-  ln -sf "$VDPAU_CACHE" "$VDPAU_PATH"
-
-  if [ -f "$VDPAU_CACHE_FILE" ]; then
-    local VDPAU_CACHE_KEY_FOUND=`tail -n 1 $VDPAU_CACHE_FILE`
-    if [ "$VDPAU_CACHE_KEY" == "$VDPAU_CACHE_KEY_FOUND" ]; then
-      VDPAU_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$VDPAU_CACHE_KEY_FOUND' does not match '$VDPAU_CACHE_KEY', rebuilding libvdpau"
-    fi
-  fi
-  if [ "$VDPAU_CACHE_OUTDATED" == "1" ]; then
-    buildVdpau
-    sudo echo $VDPAU_CACHE_KEY > "$VDPAU_CACHE_FILE"
-  else
-    info_msg "Using cached libvdpau"
-  fi
-}
-
-buildVdpau() {
-  info_msg "Downloading and building libvdpau"
-
-  if [ -d "$EXTERNAL/libvdpau" ]; then
-    rm -rf "$EXTERNAL/libvdpau"
-  fi
-  cd $VDPAU_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone git://anongit.freedesktop.org/vdpau/libvdpau
-
-  cd "$EXTERNAL/libvdpau"
-  git checkout libvdpau-1.2
-  ./autogen.sh --prefix=$VDPAU_PATH --enable-static
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getFFmpeg() {
-  travisStartFold "Getting ffmpeg"
-
-  local FFMPEG_CACHE="$CACHE/ffmpeg"
-  local FFMPEG_CACHE_FILE="$FFMPEG_CACHE/.cache.txt"
-  local FFMPEG_CACHE_KEY="${FFMPEG_CACHE_VERSION}"
-  local FFMPEG_CACHE_OUTDATED="1"
-
-  if [ ! -d "$FFMPEG_CACHE" ]; then
-    mkdir -p "$FFMPEG_CACHE"
-  fi
-
-  ln -sf "$FFMPEG_CACHE" "$FFMPEG_PATH"
-
-  if [ -f "$FFMPEG_CACHE_FILE" ]; then
-    local FFMPEG_CACHE_KEY_FOUND=`tail -n 1 $FFMPEG_CACHE_FILE`
-    if [ "$FFMPEG_CACHE_KEY" == "$FFMPEG_CACHE_KEY_FOUND" ]; then
-      FFMPEG_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$FFMPEG_CACHE_KEY_FOUND' does not match '$FFMPEG_CACHE_KEY', rebuilding ffmpeg"
-    fi
-  fi
-  if [ "$FFMPEG_CACHE_OUTDATED" == "1" ]; then
-    buildFFmpeg
-    sudo echo $FFMPEG_CACHE_KEY > "$FFMPEG_CACHE_FILE"
-  else
-    info_msg "Using cached ffmpeg"
-  fi
-}
-
-buildFFmpeg() {
-  info_msg "Downloading and building ffmpeg"
-
-  if [ -d "$EXTERNAL/ffmpeg" ]; then
-    rm -rf "$EXTERNAL/ffmpeg"
-  fi
-  cd $FFMPEG_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://git.ffmpeg.org/ffmpeg.git
-
-  cd "$EXTERNAL/ffmpeg"
-  git checkout release/3.4
-
-  ./configure \
-      --prefix=$FFMPEG_PATH \
-      --disable-debug \
-      --disable-programs \
-      --disable-doc \
-      --disable-everything \
-      --enable-gpl \
-      --enable-version3 \
-      --enable-libopus \
-      --enable-decoder=aac \
-      --enable-decoder=aac_latm \
-      --enable-decoder=aasc \
-      --enable-decoder=flac \
-      --enable-decoder=gif \
-      --enable-decoder=h264 \
-      --enable-decoder=h264_vdpau \
-      --enable-decoder=mp1 \
-      --enable-decoder=mp1float \
-      --enable-decoder=mp2 \
-      --enable-decoder=mp2float \
-      --enable-decoder=mp3 \
-      --enable-decoder=mp3adu \
-      --enable-decoder=mp3adufloat \
-      --enable-decoder=mp3float \
-      --enable-decoder=mp3on4 \
-      --enable-decoder=mp3on4float \
-      --enable-decoder=mpeg4 \
-      --enable-decoder=mpeg4_vdpau \
-      --enable-decoder=msmpeg4v2 \
-      --enable-decoder=msmpeg4v3 \
-      --enable-decoder=opus \
-      --enable-decoder=vorbis \
-      --enable-decoder=wavpack \
-      --enable-decoder=wmalossless \
-      --enable-decoder=wmapro \
-      --enable-decoder=wmav1 \
-      --enable-decoder=wmav2 \
-      --enable-decoder=wmavoice \
-      --enable-encoder=libopus \
-      --enable-hwaccel=h264_vaapi \
-      --enable-hwaccel=h264_vdpau \
-      --enable-hwaccel=mpeg4_vaapi \
-      --enable-hwaccel=mpeg4_vdpau \
-      --enable-parser=aac \
-      --enable-parser=aac_latm \
-      --enable-parser=flac \
-      --enable-parser=h264 \
-      --enable-parser=mpeg4video \
-      --enable-parser=mpegaudio \
-      --enable-parser=opus \
-      --enable-parser=vorbis \
-      --enable-demuxer=aac \
-      --enable-demuxer=flac \
-      --enable-demuxer=gif \
-      --enable-demuxer=h264 \
-      --enable-demuxer=mov \
-      --enable-demuxer=mp3 \
-      --enable-demuxer=ogg \
-      --enable-demuxer=wav \
-      --enable-muxer=ogg \
-      --enable-muxer=opus
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getOpenAL() {
-  travisStartFold "Getting openal-soft"
-
-  local OPENAL_CACHE="$CACHE/openal-soft"
-  local OPENAL_CACHE_FILE="$OPENAL_CACHE/.cache.txt"
-  local OPENAL_CACHE_KEY="${OPENAL_CACHE_VERSION}"
-  local OPENAL_CACHE_OUTDATED="1"
-
-  if [ ! -d "$OPENAL_CACHE" ]; then
-    mkdir -p "$OPENAL_CACHE"
-  fi
-
-  ln -sf "$OPENAL_CACHE" "$OPENAL_PATH"
-
-  if [ -f "$OPENAL_CACHE_FILE" ]; then
-    local OPENAL_CACHE_KEY_FOUND=`tail -n 1 $OPENAL_CACHE_FILE`
-    if [ "$OPENAL_CACHE_KEY" == "$OPENAL_CACHE_KEY_FOUND" ]; then
-      OPENAL_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$OPENAL_CACHE_KEY_FOUND' does not match '$OPENAL_CACHE_KEY', rebuilding openal-soft"
-    fi
-  fi
-  if [ "$OPENAL_CACHE_OUTDATED" == "1" ]; then
-    buildOpenAL
-    sudo echo $OPENAL_CACHE_KEY > "$OPENAL_CACHE_FILE"
-  else
-    info_msg "Using cached openal-soft"
-  fi
-}
-
-buildOpenAL() {
-  info_msg "Downloading and building openal-soft"
-
-  if [ -d "$EXTERNAL/openal-soft" ]; then
-    rm -rf "$EXTERNAL/openal-soft"
-  fi
-  cd $OPENAL_PATH
-  sudo rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://github.com/kcat/openal-soft.git
-  cd openal-soft
-  git checkout openal-soft-1.19.1
-
-  cd "$EXTERNAL/openal-soft/build"
-  cmake \
-      -D CMAKE_INSTALL_PREFIX=$OPENAL_PATH \
-      -D CMAKE_BUILD_TYPE=Release \
-      -D LIBTYPE=STATIC \
-      -D ALSOFT_EXAMPLES=OFF \
-      -D ALSOFT_TESTS=OFF \
-      -D ALSOFT_UTILS=OFF \
-      ..
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getBreakpad() {
-  travisStartFold "Getting breakpad"
-
-  local BREAKPAD_CACHE="$CACHE/breakpad"
-  local BREAKPAD_CACHE_FILE="$BREAKPAD_CACHE/.cache.txt"
-  local BREAKPAD_CACHE_KEY="${BREAKPAD_CACHE_VERSION}"
-  local BREAKPAD_CACHE_OUTDATED="1"
-
-  if [ ! -d "$BREAKPAD_CACHE" ]; then
-    mkdir -p "$BREAKPAD_CACHE"
-  fi
-
-  ln -sf "$BREAKPAD_CACHE" "$BREAKPAD_PATH"
-
-  if [ -f "$BREAKPAD_CACHE_FILE" ]; then
-    local BREAKPAD_CACHE_KEY_FOUND=`tail -n 1 $BREAKPAD_CACHE_FILE`
-    if [ "$BREAKPAD_CACHE_KEY" == "$BREAKPAD_CACHE_KEY_FOUND" ]; then
-      BREAKPAD_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$BREAKPAD_CACHE_KEY_FOUND' does not match '$BREAKPAD_CACHE_KEY', rebuilding breakpad"
-    fi
-  fi
-  if [ "$BREAKPAD_CACHE_OUTDATED" == "1" ]; then
-    buildBreakpad
-    sudo echo $BREAKPAD_CACHE_KEY > "$BREAKPAD_CACHE_FILE"
-  else
-    info_msg "Using cached breakpad"
-  fi
-}
-
-buildBreakpad() {
-  info_msg "Downloading and building breakpad"
-
-  if [ -d "$EXTERNAL/breakpad" ]; then
-    rm -rf "$EXTERNAL/breakpad"
-  fi
-  cd $BREAKPAD_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://chromium.googlesource.com/breakpad/breakpad
-
-  cd "$EXTERNAL/breakpad/src/third_party"
-  git clone https://chromium.googlesource.com/linux-syscall-support lss
-
-  cd "$EXTERNAL/breakpad"
-  ./configure --prefix=$BREAKPAD_PATH
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getCustomQt() {
-  travisStartFold "Getting patched Qt"
-
-  local QT_CACHE="$CACHE/qtPatched"
-  local QT_CACHE_FILE="$QT_CACHE/.cache.txt"
-  local QT_PATCH_CHECKSUM=`sha1sum $QT_PATCH`
-  local QT_CACHE_KEY="${QT_VERSION}_${QT_CACHE_VERSION}_${QT_PATCH_CHECKSUM:0:32}"
-  local QT_CACHE_OUTDATED="1"
-
-  if [ ! -d "$QT_CACHE" ]; then
-    mkdir -p "$QT_CACHE"
-  fi
-
-  ln -sf "$QT_CACHE" "$QT_PATH"
-
-  if [ -f "$QT_CACHE_FILE" ]; then
-    local QT_CACHE_KEY_FOUND=`tail -n 1 $QT_CACHE_FILE`
-    if [ "$QT_CACHE_KEY" == "$QT_CACHE_KEY_FOUND" ]; then
-      QT_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$QT_CACHE_KEY_FOUND' does not match '$QT_CACHE_KEY', rebuilding patched Qt"
-    fi
-  fi
-  if [ "$QT_CACHE_OUTDATED" == "1" ]; then
-    buildCustomQt
-    sudo echo $QT_CACHE_KEY > "$QT_CACHE_FILE"
-  else
-    info_msg "Using cached patched Qt"
-  fi
-
-  export PATH="$QT_PATH/bin:$PATH"
-}
-
-buildCustomQt() {
-  QT_WAS_BUILT="1"
-  info_msg "Downloading and building patched qt"
-
-  if [ -d "$EXTERNAL/qt_${QT_VERSION}" ]; then
-    sudo rm -rf "$EXTERNAL/qt_${QT_VERSION}"
-  fi
-  cd $QT_PATH
-  sudo rm -rf *
-
-  cd "$EXTERNAL"
-  git clone git://code.qt.io/qt/qt5.git qt${QT_VERSION}
-
-  cd "$EXTERNAL/qt${QT_VERSION}"
-  perl init-repository --branch --module-subset=qtbase,qtimageformats
-  git checkout v${QT_VERSION}
-  git submodule update qtbase
-  git submodule update qtimageformats
-
-  cd "$EXTERNAL/qt${QT_VERSION}/qtbase"
-  git apply "$QT_PATCH"
-  cd ..
-
-  cd "$EXTERNAL/qt${QT_VERSION}/qtbase/src/plugins/platforminputcontexts"
-  git clone https://github.com/telegramdesktop/fcitx.git
-  git clone https://github.com/telegramdesktop/hime.git
-  git clone https://github.com/telegramdesktop/nimf.git
-  cd ../../../..
-
-  ./configure -prefix $QT_PATH -release -opensource -confirm-license -qt-zlib \
-              -qt-libpng -qt-libjpeg -qt-harfbuzz -qt-pcre -qt-xcb \
-              -system-freetype -fontconfig -no-opengl -no-gtk -static \
-              -nomake examples -nomake tests -no-mirclient \
-              -dbus-runtime -no-mtdev # <- Not sure about these
-  make $MAKE_ARGS
-  sudo make install
-}
-
-getGSL() {
-  cd "$UPSTREAM"
-  git submodule init
-  git submodule update
-}
-
-getGYP() {
-  travisStartFold "Getting patched GYP"
-
-  local GYP_CACHE="$CACHE/gyp"
-  local GYP_CACHE_FILE="$GYP_CACHE/.cache.txt"
-  local GYP_PATCH_CHECKSUM=`sha1sum $GYP_PATCH`
-  local GYP_CACHE_KEY="${GYP_CACHE_VERSION}_${GYP_PATCH_CHECKSUM:0:32}"
-  local GYP_CACHE_OUTDATED="1"
-
-  if [ ! -d "$GYP_CACHE" ]; then
-    mkdir -p "$GYP_CACHE"
-  fi
-
-  ln -sf "$GYP_CACHE" "$GYP_PATH"
-
-  if [ -f "$GYP_CACHE_FILE" ]; then
-    local GYP_CACHE_KEY_FOUND=`tail -n 1 $GYP_CACHE_FILE`
-    if [ "$GYP_CACHE_KEY" == "$GYP_CACHE_KEY_FOUND" ]; then
-      GYP_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$GYP_CACHE_KEY_FOUND' does not match '$GYP_CACHE_KEY', rebuilding patched GYP"
-    fi
-  fi
-  if [ "$GYP_CACHE_OUTDATED" == "1" ]; then
-    buildGYP
-    sudo echo $GYP_CACHE_KEY > "$GYP_CACHE_FILE"
-  else
-    info_msg "Using cached patched GYP"
-  fi
-}
-
-buildGYP() {
-  info_msg "Downloading and building patched GYP"
-
-  if [ -d "$EXTERNAL/gyp" ]; then
-    rm -rf "$EXTERNAL/gyp"
-  fi
-  cd $GYP_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://chromium.googlesource.com/external/gyp
-
-  cd "$EXTERNAL/gyp"
-  git checkout 9f2a7bb1
-  git apply "$GYP_PATCH"
-  cp -r * "$GYP_PATH/"
-}
-
-buildTelegram() {
-  travisStartFold "Build tdesktop"
-
-  cd "$UPSTREAM/Telegram/gyp"
-  "$GYP_PATH/gyp" \
-      -Dapi_id=17349 \
-      -Dapi_hash=344583e45741c457fe1862106095a5eb \
-      -Dspecial_build_target= \
-      -Dbuild_defines=${GYP_DEFINES:1} \
-      -Dlinux_path_xkbcommon=$XKB_PATH \
-      -Dlinux_path_va=$VA_PATH \
-      -Dlinux_path_vdpau=$VDPAU_PATH \
-      -Dlinux_path_ffmpeg=$FFMPEG_PATH \
-      -Dlinux_path_openal=$OPENAL_PATH \
-      -Dlinux_path_range=$RANGE_PATH \
-      -Dlinux_path_qt=$QT_PATH \
-      -Dlinux_path_breakpad=$BREAKPAD_PATH \
-      -Dlinux_path_libexif_lib=/usr/local/lib \
-      -Dlinux_path_opus_include=/usr/include/opus \
-      -Dlinux_lib_ssl=-lssl \
-      -Dlinux_lib_crypto=-lcrypto \
-      -Dlinux_lib_icu=-licuuc\ -licutu\ -licui18n \
-      --depth=. --generator-output=.. --format=cmake -Goutput_dir=../out \
-      Telegram.gyp
-  cd "$UPSTREAM/out/Debug"
-
-  export ASM="gcc"
-  cmake .
-  make $MAKE_ARGS
-}
-
-check() {
-  local filePath="$UPSTREAM/out/Debug/Telegram"
-  if test -f "$filePath"; then
-    success_msg "Build successfully done! :)"
-
-    local size;
-    size=$(stat -c %s "$filePath")
-    success_msg "File size of ${filePath}: ${size} Bytes"
-  else
-    error_msg "Build error, output file does not exist"
-    exit 1
-  fi
-}
-
-source ./.travis/common.sh
-
-run

.travis/common.sh

@@ -1,64 +0,0 @@
-#!/usr/bin/env bash
-# set colors
-RCol='\e[0m'    # Text Reset
-
-# Regular           Bold                Underline           High Intensity      BoldHigh Intens     Background          High Intensity Backgrounds
-Bla='\e[0;30m';     BBla='\e[1;30m';    UBla='\e[4;30m';    IBla='\e[0;90m';    BIBla='\e[1;90m';   On_Bla='\e[40m';    On_IBla='\e[0;100m';
-Red='\e[0;31m';     BRed='\e[1;31m';    URed='\e[4;31m';    IRed='\e[0;91m';    BIRed='\e[1;91m';   On_Red='\e[41m';    On_IRed='\e[0;101m';
-Gre='\e[0;32m';     BGre='\e[1;32m';    UGre='\e[4;32m';    IGre='\e[0;92m';    BIGre='\e[1;92m';   On_Gre='\e[42m';    On_IGre='\e[0;102m';
-Yel='\e[0;33m';     BYel='\e[1;33m';    UYel='\e[4;33m';    IYel='\e[0;93m';    BIYel='\e[1;93m';   On_Yel='\e[43m';    On_IYel='\e[0;103m';
-Blu='\e[0;34m';     BBlu='\e[1;34m';    UBlu='\e[4;34m';    IBlu='\e[0;94m';    BIBlu='\e[1;94m';   On_Blu='\e[44m';    On_IBlu='\e[0;104m';
-Pur='\e[0;35m';     BPur='\e[1;35m';    UPur='\e[4;35m';    IPur='\e[0;95m';    BIPur='\e[1;95m';   On_Pur='\e[45m';    On_IPur='\e[0;105m';
-Cya='\e[0;36m';     BCya='\e[1;36m';    UCya='\e[4;36m';    ICya='\e[0;96m';    BICya='\e[1;96m';   On_Cya='\e[46m';    On_ICya='\e[0;106m';
-Whi='\e[0;37m';     BWhi='\e[1;37m';    UWhi='\e[4;37m';    IWhi='\e[0;97m';    BIWhi='\e[1;97m';   On_Whi='\e[47m';    On_IWhi='\e[0;107m';
-
-start_msg() {
-    echo -e "\n${Gre}$*${RCol}"
-}
-
-info_msg() {
-    sameLineInfoMessage "\n$1"
-}
-
-error_msg() {
-    echo -e "\n${BRed}$*${RCol}"
-}
-
-success_msg() {
-    echo -e "\n${BGre}$*${RCol}"
-}
-
-sameLineInfoMessage() {
-    echo -e "${Cya}$*${RCol}"
-}
-
-TRAVIS_LAST_FOLD=""
-
-travisStartFold() {
-    local TITLE="$1"
-    local NAME=$(sanitizeName "$TITLE")
-
-    if [ "$TRAVIS_LAST_FOLD" != "" ]; then
-        travisEndFold
-    fi
-
-    echo "travis_fold:start:$NAME"
-    sameLineInfoMessage "$TITLE"   
-
-    TRAVIS_LAST_FOLD="$NAME"
-}
-
-travisEndFold() {
-    if [ "$TRAVIS_LAST_FOLD" == "" ]; then
-        return
-    fi
-
-    echo "travis_fold:end:$TRAVIS_LAST_FOLD"
-    TRAVIS_LAST_FOLD=""
-}
-
-sanitizeName() {
-    local NAME="${1// /_}"
-    local NAME="${NAME,,}"
-    echo "$NAME"
-}

CMakeLists.txt

@@ -0,0 +1,44 @@
+# This file is part of Telegram Desktop,
+# the official desktop application for the Telegram messaging service.
+#
+# For license and copyright information please follow this link:
+# https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+
+cmake_minimum_required(VERSION 3.16)
+cmake_policy(SET CMP0076 NEW)
+cmake_policy(SET CMP0091 NEW)
+
+set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+
+include(cmake/validate_special_target.cmake)
+include(cmake/version.cmake)
+desktop_app_parse_version(Telegram/build/version)
+
+project(Telegram
+    LANGUAGES C CXX
+    VERSION ${desktop_app_version_cmake}
+    DESCRIPTION "Official Telegram Desktop messenger"
+    HOMEPAGE_URL "https://desktop.telegram.org"
+)
+set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT Telegram)
+
+get_filename_component(third_party_loc "Telegram/ThirdParty" REALPATH)
+get_filename_component(submodules_loc "Telegram" REALPATH)
+
+include(cmake/variables.cmake)
+include(cmake/nice_target_sources.cmake)
+include(cmake/target_link_static_libraries.cmake)
+include(cmake/target_link_frameworks.cmake)
+include(cmake/init_target.cmake)
+include(cmake/generate_target.cmake)
+
+include(cmake/options.cmake)
+
+include(cmake/external/qt/package.cmake)
+
+set(desktop_app_skip_libs
+    variant
+)
+
+add_subdirectory(cmake)
+add_subdirectory(Telegram)

LEGAL

@@ -1,7 +1,7 @@
 This file is part of Telegram Desktop,
 the official desktop application for the Telegram messaging service.
 
-Copyright (c) 2014-2019 John Preston, https://desktop.telegram.org
+Copyright (c) 2014-2021 The Telegram Desktop Authors.
 
 Telegram Desktop is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by

README.md

@@ -3,8 +3,9 @@
 This is the complete source code and the build instructions for the alpha version of the official desktop client for the [Telegram][telegram] messenger, based on the [Telegram API][telegram_api] and the [MTProto][telegram_proto] secure protocol.
 
 [![Version](https://badge.fury.io/gh/telegramdesktop%2Ftdesktop.svg)](https://github.com/telegramdesktop/tdesktop/releases)
-[![Build Status](https://travis-ci.org/telegramdesktop/tdesktop.svg?branch=dev)](https://travis-ci.org/telegramdesktop/tdesktop)
-[![Build status](https://ci.appveyor.com/api/projects/status/uiw2y768iy4i5bu8/branch/dev?svg=true)](https://ci.appveyor.com/project/telegramdesktop/tdesktop)
+[![Build Status](https://github.com/telegramdesktop/tdesktop/workflows/Windows./badge.svg)](https://github.com/telegramdesktop/tdesktop/actions)
+[![Build Status](https://github.com/telegramdesktop/tdesktop/workflows/MacOS./badge.svg)](https://github.com/telegramdesktop/tdesktop/actions)
+[![Build Status](https://github.com/telegramdesktop/tdesktop/workflows/Linux./badge.svg)](https://github.com/telegramdesktop/tdesktop/actions)
 
 [![Preview of Telegram Desktop][preview_image]][preview_image_url]
 
@@ -12,20 +13,33 @@ The source code is published under GPLv3 with OpenSSL exception, the license is
 
 ## Supported systems
 
-* Windows XP - Windows 10 (**not** RT)
-* Mac OS X 10.8 - Mac OS X 10.15
-* Mac OS X 10.6 - Mac OS X 10.7 (separate build)
-* Ubuntu 12.04 - Ubuntu 19.04
-* Fedora 22 - Fedora 30
-* [Snappy](https://snapcraft.io/telegram-desktop)
-* [Flathub](https://flathub.org/apps/details/org.telegram.desktop)
+The latest version is available for
+
+* [Windows 7 and above](https://telegram.org/dl/desktop/win) ([portable](https://telegram.org/dl/desktop/win_portable))
+* [macOS 10.12 and above](https://telegram.org/dl/desktop/mac)
+* [Linux static build for 64 bit](https://telegram.org/dl/desktop/linux)
+* [Snap](https://snapcraft.io/telegram-desktop)
+* [Flatpak](https://flathub.org/apps/details/org.telegram.desktop)
+
+## Old system versions
+
+Version **2.4.4** was the last that supports older systems
+
+* [OS X 10.10 and 10.11](https://updates.tdesktop.com/tosx/tsetup-osx.2.4.4.dmg)
+* [Linux static build for 32 bit](https://updates.tdesktop.com/tlinux32/tsetup32.2.4.4.tar.xz)
+
+Version **1.8.15** was the last that supports older systems
+
+* [Windows XP and Vista](https://updates.tdesktop.com/tsetup/tsetup.1.8.15.exe) ([portable](https://updates.tdesktop.com/tsetup/tportable.1.8.15.zip))
+* [OS X 10.8 and 10.9](https://updates.tdesktop.com/tmac/tsetup.1.8.15.dmg)
+* [OS X 10.6 and 10.7](https://updates.tdesktop.com/tmac32/tsetup32.1.8.15.dmg)
 
 ## Third-party
 
-* Qt 5.3.2 and 5.6.2, slightly patched ([LGPL](http://doc.qt.io/qt-5/lgpl.html))
-* OpenSSL 1.0.1g ([OpenSSL License](https://www.openssl.org/source/license.html))
-* zlib 1.2.8 ([zlib License](http://www.zlib.net/zlib_license.html))
-* libexif 0.6.20 ([LGPL](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html))
+* Qt 5.15.2, 5.6.2 and 5.3.2 slightly patched ([LGPL](http://doc.qt.io/qt-5/lgpl.html))
+* OpenSSL 1.1.1 and 1.0.1 ([OpenSSL License](https://www.openssl.org/source/license.html))
+* WebRTC ([New BSD License](https://github.com/desktop-app/tg_owt/blob/master/LICENSE))
+* zlib 1.2.11 ([zlib License](http://www.zlib.net/zlib_license.html))
 * LZMA SDK 9.20 ([public domain](http://www.7-zip.org/sdk.html))
 * liblzma ([public domain](http://tukaani.org/xz/))
 * Google Breakpad ([License](https://chromium.googlesource.com/breakpad/breakpad/+/master/LICENSE))
@@ -36,18 +50,21 @@ The source code is published under GPLv3 with OpenSSL exception, the license is
 * Opus codec ([BSD License](http://www.opus-codec.org/license/))
 * FFmpeg ([LGPL](https://www.ffmpeg.org/legal.html))
 * Guideline Support Library ([MIT License](https://github.com/Microsoft/GSL/blob/master/LICENSE))
-* Mapbox Variant ([BSD License](https://github.com/mapbox/variant/blob/master/LICENSE))
 * Range-v3 ([Boost License](https://github.com/ericniebler/range-v3/blob/master/LICENSE.txt))
 * Open Sans font ([Apache License 2.0](http://www.apache.org/licenses/LICENSE-2.0.html))
+* Vazir font ([License](https://github.com/rastikerdar/vazir-font/blob/master/LICENSE))
 * Emoji alpha codes ([MIT License](https://github.com/emojione/emojione/blob/master/extras/alpha-codes/LICENSE.md))
 * Catch test framework ([Boost License](https://github.com/philsquared/Catch/blob/master/LICENSE.txt))
 * xxHash ([BSD License](https://github.com/Cyan4973/xxHash/blob/dev/LICENSE))
+* QR Code generator ([MIT License](https://github.com/nayuki/QR-Code-generator#license))
+* CMake ([New BSD License](https://github.com/Kitware/CMake/blob/master/Copyright.txt))
+* Hunspell ([GPL](https://github.com/hunspell/hunspell/blob/master/COPYING))
 
 ## Build instructions
 
 * [Visual Studio 2019][msvc]
-* [Xcode 10][xcode]
-* [GYP/CMake on GNU/Linux][cmake]
+* [Xcode 12][xcode]
+* [CMake on GNU/Linux][cmake]
 
 [//]: # (LINKS)
 [telegram]: https://telegram.org

Telegram/Patches/build_ffmpeg_win.sh

@@ -13,6 +13,8 @@ pacman --noconfirm -S pkg-config
 PKG_CONFIG_PATH="/mingw64/lib/pkgconfig:$PKG_CONFIG_PATH"
 
 ./configure --toolchain=msvc \
+--extra-cflags="-DCONFIG_SAFE_BITSTREAM_READER=1" \
+--extra-cxxflags="-DCONFIG_SAFE_BITSTREAM_READER=1" \
 --extra-ldflags="-libpath:$FullExecPath/../opus/win32/VS2015/Win32/Release" \
 --disable-programs \
 --disable-doc \