diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
new file mode 100644
index 0000000..9324847
--- /dev/null
+++ b/.github/workflows/build_test.yml
@@ -0,0 +1,382 @@
+# Copyright 2021 Google Inc. All Rights Reserved.
+#
+# Distributed under MIT license.
+# See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+
+# Workflow for building and running tests under Ubuntu
+
+name: Build/Test
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types: [opened, reopened, labeled, synchronize]
+
+jobs:
+  ubuntu_build:
+    name: Build and test ${{ matrix.name }}
+    runs-on: ${{ matrix.os || 'ubuntu-latest' }}
+    defaults:
+      run:
+        shell: bash
+    strategy:
+      matrix:
+        include:
+          # TODO: consider running this combination in docker
+          #- name: cmake:gcc4.4
+
+          # TODO: consider running this combination in docker
+          #- name: cmake:gcc7
+
+          - name: cmake:gcc9
+            build_system: cmake
+            c_compiler: gcc-9
+            cxx_compiler: g++-9
+            os: ubuntu-18.04
+
+          # TODO: consider running this combination in docker
+          #- name: cmake:clang3.5
+
+          - name: cmake:clang12
+            build_system: cmake
+            c_compiler: clang-12
+            cxx_compiler: clang++12
+
+          - name: cmake:clang12:asan
+            build_system: cmake
+            sanitizer: address
+            c_compiler: clang-12
+            cxx_compiler: clang++12
+
+          - name: cmake:clang12:tsan
+            build_system: cmake
+            sanitizer: thread
+            c_compiler: clang-12
+            cxx_compiler: clang++12
+
+          - name: cmake:clang12:ubsan
+            build_system: cmake
+            sanitizer: undefined
+            c_compiler: clang-12
+            cxx_compiler: clang++-12
+            c_flags: -fno-sanitize-recover=undefined,integer
+
+          - name: cmake:qemu-arm-neon-gcc
+            build_system: cmake
+            c_compiler: arm-linux-gnueabihf-gcc
+            cxx_compiler: arm-linux-gnueabihf-g++
+            c_flags: -march=armv7-a -mfloat-abi=hard -mfpu=neon
+            extra_apt_pkgs: gcc-arm-linux-gnueabihf libc6-dev-armhf-cross qemu-user
+
+          - name: cmake-osx:clang
+            build_system: cmake
+            c_compiler: clang
+            cxx_compiler: clang++
+            os: macos-latest
+
+          - name: cmake-osx:gcc
+            build_system: cmake
+            c_compiler: gcc
+            cxx_compiler: g++
+            os: macos-latest
+
+          - name: cmake-win64:msvc2017-rel
+            build_system: cmake
+            cmake_generator: Visual Studio 15 2017 Win64
+            cmake_config: Release
+            os: windows-2016
+
+          - name: cmake-win64:msvc2017-dbg
+            build_system: cmake
+            cmake_generator: Visual Studio 15 2017 Win64
+            cmake_config: Debug
+            os: windows-2016
+
+          # TODO: consider running this combination in docker
+          #- name: autotools:gcc5
+
+          - name: autotools:gcc10
+            build_system: autotools
+            c_compiler: gcc-10
+            cxx_compiler: g++-10
+
+          - name: autotools:clang12
+            build_system: autotools
+            c_compiler: clang-12
+            cxx_compiler: clang++12
+
+          - name: fuzz:clang12
+            build_system: fuzz
+            c_compiler: clang-12
+            cxx_compiler: clang++12
+
+          # TODO: consider running this combination in docker
+          #- name: python2.7:gcc5
+
+          - name: python27:clang9
+            build_system: python
+            c_compiler: clang-9
+            python_version: 2.7
+            cxx_compiler: clang++-9
+            os: ubuntu-18.04
+
+          # TODO: consider running this combination in docker
+          #- name: python27-win
+          #  build_system: python
+          #  python_version: 2.7
+          #  # TODO: investigate why win-builds can't run tests
+          #  py_setuptools_cmd: build_ext
+          #  os: windows-2016
+
+          # TODO: consider running this combination in docker
+          #- name: python3.6:gcc5
+
+          # TODO: consider running this combination in docker
+          #- name: python3.7:gcc5
+
+          # TODO: consider running this combination in docker
+          #- name: python3.8:gcc5
+
+          - name: python39:clang12
+            build_system: python
+            python_version: 3.9
+            c_compiler: clang-12
+            cxx_compiler: clang++-12
+
+          - name: python39-win
+            build_system: python
+            python_version: 3.9
+            # TODO: investigate why win-builds can't run tests
+            py_setuptools_cmd: build_ext
+            os: windows-2019
+
+          - name: maven
+            build_system: maven
+
+          - name: bazel:root
+            build_system: bazel
+            bazel_project: .
+
+          - name: bazel:go
+            build_system: bazel
+            bazel_project: go
+
+          - name: bazel:java
+            build_system: bazel
+            bazel_project: java
+
+          - name: bazel:js
+            build_system: bazel
+            bazel_project: js
+
+          - name: bazel:research
+            build_system: bazel
+            bazel_project: research
+
+          - name: bazel-osx:root
+            build_system: bazel
+            bazel_project: .
+            os: macos-latest
+
+          - name: bazel-osx:go
+            build_system: bazel
+            bazel_project: go
+            os: macos-latest
+
+          - name: bazel-osx:java
+            build_system: bazel
+            bazel_project: java
+            os: macos-latest
+
+          - name: bazel-osx:js
+            build_system: bazel
+            bazel_project: js
+            os: macos-latest
+
+          - name: bazel-osx:research
+            build_system: bazel
+            bazel_project: research
+            os: macos-latest
+
+          - name: bazel-win:root
+            build_system: bazel
+            bazel_project: .
+            os: windows-latest
+
+          # TODO: use single dll on windows, otherwise it fails to link
+          #- name: bazel-win:go
+          #  build_system: bazel
+          #  bazel_project: go
+          #  os: windows-latest
+
+          - name: bazel-win:java
+            build_system: bazel
+            bazel_project: java
+            os: windows-latest
+
+          # TODO: blocked by Bazel Closure rules issue
+          #- name: bazel-win:js
+          #  build_system: bazel
+          #  bazel_project: js
+          #  os: windows-latest
+
+          - name: bazel-win:research
+            build_system: bazel
+            bazel_project: research
+            os: windows-latest
+
+          - name: make
+            build_system: make
+
+          - name: make-osx
+            build_system: make
+            os: macos-latest
+
+          # TODO: add 32/64-bit x MSYS2/mingw/Cygwin toolchain support.
+          - name: make-win
+            build_system: make
+            os: windows-latest
+
+    env:
+      CC: ${{ matrix.c_compiler || 'gcc' }}
+      CXX: ${{ matrix.cxx_compiler || 'gcc' }}
+
+    steps:
+    - name: Install extra deps @ Ubuntu
+      if: ${{ runner.os == 'Linux' }}
+      # Already installed: bazel, clang{10-12}, cmake, gcc{9,10}, java{8,11}, maven, python{2.7,3.5-3.9}
+      run: |
+        EXTRA_PACKAGES="${{ matrix.extra_apt_pkgs || '' }}"
+        sudo apt update
+        sudo apt install -y ${EXTRA_PACKAGES}
+
+    - name: Checkout the source
+      uses: actions/checkout@v2
+      with:
+        submodules: false
+        fetch-depth: 1
+
+    #- name: Checkout VC9 for Python
+    #  if: ${{ runner.os == 'Windows' && matrix.build_system == 'python' &&  matrix.python_version == '2.7' }}
+    #  uses: actions/checkout@v2
+    #  with:
+    #    repository: reider-roque/sulley-win-installer
+    #    path: third_party/VCForPython27
+
+    - name: Configure / Build / Test with CMake
+      if: ${{ matrix.build_system == 'cmake' }}
+      run: |
+        export ASAN_OPTIONS=detect_leaks=0
+        declare -a CMAKE_OPTIONS=()
+        CMAKE_OPTIONS+=("-DCMAKE_VERBOSE_MAKEFILE=ON")
+        [ ! -z '${{ matrix.c_compiler || '' }}' ] && CMAKE_OPTIONS+=(-DCMAKE_C_COMPILER='${{ matrix.c_compiler }}')
+        [ ! -z '${{ matrix.cxx_compiler || '' }}' ] && CMAKE_OPTIONS+=(-DCMAKE_CXX_COMPILER='${{ matrix.cxx_compiler }}')
+        [ ! -z '${{ matrix.sanitizer || '' }}' ] && CMAKE_OPTIONS+=(-DENABLE_SANITIZER='${{ matrix.sanitizer }}')
+        [ ! -z '${{ matrix.cmake_generator || '' }}' ] && export CMAKE_GENERATOR='${{ matrix.cmake_generator }}'
+        declare -a CMAKE_BUILD_OPTIONS=()
+        [ ! -z '${{ matrix.cmake_config || '' }}' ] && CMAKE_BUILD_OPTIONS+=(--config '${{ matrix.cmake_config }}')
+        declare -a CMAKE_TEST_OPTIONS=()
+        [ ! -z '${{ matrix.cmake_config || '' }}' ] && CMAKE_TEST_OPTIONS+=(-C '${{ matrix.cmake_config }}')
+
+        cmake -B out . ${CMAKE_OPTIONS[*]} -DCMAKE_C_FLAGS='${{ matrix.c_flags || '' }}'
+        cmake --build out ${CMAKE_BUILD_OPTIONS[*]}
+        cd out; ctest ${CMAKE_TEST_OPTIONS[*]}; cd ..
+
+    - name: Quick Fuzz
+      if: ${{ matrix.build_system == 'fuzz' }}
+      run: |
+        export ASAN_OPTIONS=detect_leaks=0
+        ./c/fuzz/test_fuzzer.sh
+
+    - name: Build with Bazel
+      if: ${{ matrix.build_system == 'bazel' }}
+      run: |
+        cd ${GITHUB_WORKSPACE}/${{ matrix.bazel_project }}
+        bazel build -c opt ...:all
+
+    - name: Fix symlinks for Bazel (Windows)
+      if: ${{ matrix.build_system == 'bazel' && runner.os == 'Windows' && matrix.bazel_project == 'java' }}
+      shell: python
+      run: |
+        import fnmatch
+        import os
+        import os.path
+        from shutil import copyfile
+        os.chdir('${{ matrix.bazel_project }}')
+        print('Searching for manifests in ' + os.getcwd())
+        matches = []
+        for root, dirnames, filenames in os.walk('bazel-bin\\org\\brotli'):
+          for filename in fnmatch.filter(filenames, '*.runfiles_manifest'):
+            matches.append(os.path.join(root, filename))
+        for match in matches:
+          print('Scanning manifest ' + match)
+          runfiles = match[:-len('_manifest')]
+          with open(match) as manifest:
+            for entry in manifest:
+              entry = entry.strip()
+              if not entry.startswith("org_brotli_java"):
+                continue
+              if entry.startswith('org_brotli_java/external'):
+                continue
+              (alias, space, link) = entry.partition(' ')
+              if alias.endswith('.jar') or alias.endswith('.exe'):
+                continue
+              link = link.replace('/', '\\')
+              alias = alias.replace('/', '\\')
+              dst = os.path.join(runfiles, alias)
+              if not os.path.exists(dst):
+                print(link + ' -> ' + dst)
+                parent = os.path.dirname(dst)
+                if not os.path.exists(parent):
+                  os.makedirs(parent)
+                copyfile(link, dst)
+        print('Finished resolving symlinks')
+
+    - name: Test with Bazel
+      if: ${{ matrix.build_system == 'bazel' }}
+      run: |
+        cd ${GITHUB_WORKSPACE}/${{ matrix.bazel_project }}
+        bazel query "tests(...)" --output=label > ${RUNNER_TEMP}/tests.lst
+        [ -s ${RUNNER_TEMP}/tests.lst ] && bazel test -c opt ...:all
+        bazel clean
+
+    - name: Build / Test with Maven
+      if: ${{ matrix.build_system == 'maven' }}
+      run: |
+        export MAVEN_OPTS=-Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
+        cd java/org/brotli
+        mvn -B install
+        cd integration
+        mvn -B verify
+
+    - name: Build / Test with Autotools
+      if: ${{ matrix.build_system == 'autotools' }}
+      run: |
+        ./bootstrap && ./configure && make
+
+    - name: Build / Test with Make
+      if: ${{ matrix.build_system == 'make' }}
+      run: |
+        make brotli
+        make test
+
+    - uses: actions/setup-python@v2
+      if: ${{ matrix.build_system == 'python' }}
+      with:
+        python-version: ${{ matrix.python_version }}
+
+    # TODO: investigate, why msiexec hangs
+    #- name: Install VC9 for Python
+    #  if: ${{ runner.os == 'Windows' && matrix.build_system == 'python' &&  matrix.python_version == '2.7' }}
+    #  run: |
+    #    echo "070474db76a2e625513a5835df4595df9324d820f9cc97eab2a596dcbc2f5cbf  third_party/VCForPython27/VCForPython27.msi" | sha256sum --check --status
+    #    msiexec ALLUSERS=1 /qn /norestart /i third_party/VCForPython27/VCForPython27.msi /l*v ${RUNNER_TEMP}/msiexec.log
+    #    cat ${RUNNER_TEMP}/msiexec.log
+
+    - name: Build / Test with Python
+      if: ${{ matrix.build_system == 'python' }}
+      run: |
+        python -VV
+        python -c "import sys; sys.exit('Invalid python version') if '.'.join(map(str,sys.version_info[0:2])) != '${{ matrix.python_version }}' else True"
+        python setup.py ${{ matrix.py_setuptools_cmd || 'test'}}
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index e97adc3..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,267 +0,0 @@
-language: c
-sudo: false
-branches:
-  only:
-  - master
-
-cache:
-  directories:
-    - $HOME/Library/Caches/Homebrew
-    - /usr/local/Homebrew
-
-before_cache:
-  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then brew cleanup; fi
-  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then find /usr/local/Homebrew \! -regex ".+\.git.+" -delete; fi
-
-matrix:
-  include:
-    ###
-    ## Linux builds using various versions of GCC.
-    ###
-    - os: linux
-      env: BUILD_SYSTEM=cmake C_COMPILER=gcc-7 CXX_COMPILER=g++-7
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          packages:
-          - gcc-7
-          - g++-7
-    - os: linux
-      env: BUILD_SYSTEM=cmake C_COMPILER=gcc-4.4 CXX_COMPILER=g++-4.4
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          packages:
-          - gcc-4.4
-          - g++-4.4
-
-    ###
-    ## Test that Autotools build works.
-    ###
-    - os: linux
-      env: BUILD_SYSTEM=autotools C_COMPILER=gcc-5 CXX_COMPILER=g++-5
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          packages:
-          - gcc-5
-          - g++-5
-
-    ###
-    ## Test that fuzzer is compiling / working.
-    ###
-    - os: linux
-      env: BUILD_SYSTEM=fuzz C_COMPILER=clang-7 CXX_COMPILER=clang++-7 ASAN_OPTIONS=detect_leaks=0
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          - llvm-toolchain-xenial-7
-          packages:
-          - clang-7
-
-    ###
-    ## clang on Linux
-    ###
-    - os: linux
-      env: BUILD_SYSTEM=cmake C_COMPILER=clang-7 CXX_COMPILER=clang++-7
-      addons:
-        apt:
-          sources:
-          - llvm-toolchain-xenial-7
-          - ubuntu-toolchain-r-test
-          packages:
-          - clang-7
-    - os: linux
-      env: BUILD_SYSTEM=cmake C_COMPILER=clang-3.5 CXX_COMPILER=clang++-3.5
-      addons:
-        apt:
-          sources:
-          - llvm-toolchain-trusty-3.5
-          - ubuntu-toolchain-r-test
-          packages:
-          - clang-3.5
-
-    ###
-    ## testing arm via qemu on Linux
-    ###
-    - os: linux
-      env: BUILD_SYSTEM=cmake C_COMPILER=arm-linux-gnueabihf-gcc CXX_COMPILER=arm-linux-gnueabihf-g++ CFLAGS="-march=armv7-a -mfloat-abi=hard -mfpu=neon"
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          packages:
-          - qemu
-          - gcc-arm-linux-gnueabihf
-          - libc6-dev-armhf-cross
-
-    ###
-    ## PGI Community Edition on Linux
-    ###
-    # Installer is currently broken
-    #- os: linux
-    #  env: BUILD_SYSTEM=cmake C_COMPILER=pgcc CXX_COMPILER=pgc++
-
-    ###
-    ## Python builds on Linux
-    ###
-    - os: linux
-      language: python
-      python: 2.7
-      env: BUILD_SYSTEM=python C_COMPILER=gcc-5 CXX_COMPILER=g++-5
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          packages:
-          - gcc-5
-          - g++-5
-    - os: linux
-      language: python
-      python: 3.6
-      env: BUILD_SYSTEM=python C_COMPILER=gcc-5 CXX_COMPILER=g++-5
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          packages:
-          - gcc-5
-          - g++-5
-
-    - os: linux
-      language: python
-      python: 3.7
-      env: BUILD_SYSTEM=python C_COMPILER=gcc-5 CXX_COMPILER=g++-5
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          packages:
-          - gcc-5
-          - g++-5
-
-    - os: linux
-      language: python
-      python: 3.8
-      env: BUILD_SYSTEM=python C_COMPILER=gcc-5 CXX_COMPILER=g++-5
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          packages:
-          - gcc-5
-          - g++-5
-
-    ###
-    ## CMake on OS X
-    ##
-    ## These all work, but it seems unnecessary to actually build them
-    ## all since we already test all these versions of GCC on Linux.
-    ## We'll just test 4.4 and the most recent version.
-    ###
-    - os: osx
-      osx_image: xcode12.2
-      env: BUILD_SYSTEM=cmake C_COMPILER=gcc CXX_COMPILER=g++
-    #- os: osx
-    #  osx_image: xcode12.2
-    #  env: BUILD_SYSTEM=cmake C_COMPILER=gcc-4.9 CXX_COMPILER=g++-4.9
-    - os: osx
-      osx_image: xcode12.2
-      env: BUILD_SYSTEM=cmake
-
-    ###
-    ## Python 2.7 OS X build (using the system /usr/bin/python)
-    ###
-    - os: osx
-      osx_image: xcode12.2
-      env: BUILD_SYSTEM=python C_COMPILER=gcc CXX_COMPILER=g++
-
-    ###
-    ## Sanitizers
-    ###
-    - os: linux
-      env: BUILD_SYSTEM=cmake C_COMPILER=clang-7 CXX_COMPILER=clang++-7 SANITIZER=address ASAN_OPTIONS=detect_leaks=0
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          - llvm-toolchain-xenial-7
-          packages:
-          - clang-7
-    - os: linux
-      env: BUILD_SYSTEM=cmake C_COMPILER=clang-7 CXX_COMPILER=clang++-7 SANITIZER=thread
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          - llvm-toolchain-xenial-7
-          packages:
-          - clang-7
-    - os: linux
-      env: BUILD_SYSTEM=cmake C_COMPILER=clang-7 CXX_COMPILER=clang++-7 SANITIZER=undefined CFLAGS="-fno-sanitize-recover=undefined,integer"
-      addons:
-        apt:
-          sources:
-          - ubuntu-toolchain-r-test
-          - llvm-toolchain-xenial-7
-          packages:
-          - clang-7
-
-    - os: linux
-      env: BUILD_SYSTEM=maven
-      jdk:
-      # maven + jdk11 + javadoc == trouble
-      - openjdk10
-      language: java
-
-    - os: linux
-      sudo: required
-      language: java
-      jdk: oraclejdk9
-      env: BUILD_SYSTEM=bazel
-      addons:
-        apt:
-          sources:
-            - sourceline: "deb [arch=amd64] http://storage.googleapis.com/bazel-apt stable jdk1.8"
-              key_url: "https://storage.googleapis.com/bazel-apt/doc/apt-key.pub.gpg"
-            - ubuntu-toolchain-r-test
-          packages:
-            - bazel
-
-    - os: osx
-      osx_image: xcode12.2
-      env: BUILD_SYSTEM=bazel
-      language: java
-
-before_install:
-###
-## If we use the matrix to set CC/CXX Travis, overwrites the values,
-## so instead we use C/CXX_COMPILER, then copy the values to CC/CXX
-## here (after Travis has set CC/CXX).
-###
-- if [ -n "${C_COMPILER}" ]; then export CC="${C_COMPILER}"; fi
-- if [ -n "${CXX_COMPILER}" ]; then export CXX="${CXX_COMPILER}"; fi
-- scripts/.travis.sh before_install
-install:
-- scripts/.travis.sh install
-script:
-- scripts/.travis.sh script
-after_success:
-- scripts/.travis.sh after_success
-
-before_deploy:
-- scripts/.travis.sh before_deploy
-
-deploy:
-- provider: bintray
-  file: "scripts/.bintray.json"
-  user: "eustas"
-  key:
-    secure: "Kbam/lTAdz72fZivbs6riJT+Y4PbuKP7r6t5PAWxJxAAykjwnYTRe3zF472g9HCE14KYMsdB+KSYSgg6TGJnqGC9gL9xhhGU9U/WmA+vbMWS/MSnMWpK9IRpp77pM2i2NKZD4v33JuEwKFCBJP3Vj6QQ5Qd1NKdobuXJyznhgnw="
-  on:
-    condition: "${BUILD_SYSTEM} = bazel"
-  skip_cleanup: true
diff --git a/configure.ac b/configure.ac
index 87d579d..9a3b285 100644
--- a/configure.ac
+++ b/configure.ac
@@ -11,4 +11,4 @@
 
 AC_CONFIG_FILES([Makefile scripts/libbrotlicommon.pc scripts/libbrotlidec.pc scripts/libbrotlienc.pc])
 
-AC_OUTPUT
\ No newline at end of file
+AC_OUTPUT
diff --git a/docs/brotli.1 b/docs/brotli.1
index 7242a32..a3c9a13 100644
--- a/docs/brotli.1
+++ b/docs/brotli.1
@@ -1,4 +1,4 @@
-.TH "BROTLI" "1" "February 2018" "brotli 1.0.0" "User commands"
+.TH "BROTLI" "1" "August 2021" "" "User commands"
 .SH "NAME"
 \fBbrotli\fR \- brotli, unbrotli \- compress or decompress files
 .SH SYNOPSIS
@@ -108,6 +108,10 @@
   windows size improve density; decoder might require up to window size
   memory to operate
 .IP \(bu 2
+\fB\-D FILE\fP, \fB\-\-dictionary=FILE\fP:
+  use FILE as raw (LZ77) dictionary; same dictionary MUST be used both for
+  compression and decompression
+.IP \(bu 2
 \fB\-S SUF\fP, \fB\-\-suffix=SUF\fP:
   output file suffix (default: \fB\|\.br\fP)
 .IP \(bu 2
diff --git a/docs/constants.h.3 b/docs/constants.h.3
index edf071c..1b29f28 100644
--- a/docs/constants.h.3
+++ b/docs/constants.h.3
@@ -1,4 +1,4 @@
-.TH "constants.h" 3 "Wed May 13 2020" "Brotli" \" -*- nroff -*-
+.TH "constants.h" 3 "August 2021" "Brotli" \" -*- nroff -*-
 .ad l
 .nh
 .SH NAME
diff --git a/docs/decode.h.3 b/docs/decode.h.3
index 7b8581c..14abda6 100644
--- a/docs/decode.h.3
+++ b/docs/decode.h.3
@@ -1,4 +1,4 @@
-.TH "decode.h" 3 "Thu Feb 22 2018" "Brotli" \" -*- nroff -*-
+.TH "decode.h" 3 "August 2021" "Brotli" \" -*- nroff -*-
 .ad l
 .nh
 .SH NAME
@@ -36,6 +36,10 @@
 
 .in +1c
 .ti -1c
+.RI "\fBBROTLI_BOOL\fP \fBBrotliDecoderAttachDictionary\fP (\fBBrotliDecoderState\fP *state, BrotliSharedDictionaryType type, size_t data_size, const uint8_t data[data_size])"
+.br
+.RI "\fIAdds LZ77 prefix dictionary, adds or replaces built-in static dictionary and transforms\&. \fP"
+.ti -1c
 .RI "\fBBrotliDecoderState\fP * \fBBrotliDecoderCreateInstance\fP (\fBbrotli_alloc_func\fP alloc_func, \fBbrotli_free_func\fP free_func, void *opaque)"
 .br
 .RI "\fICreates an instance of \fBBrotliDecoderState\fP and initializes it\&. \fP"
@@ -167,6 +171,35 @@
 Partially done; should be called again with more output\&. 
 .SH "Function Documentation"
 .PP 
+.SS "\fBBROTLI_BOOL\fP BrotliDecoderAttachDictionary (\fBBrotliDecoderState\fP * state, BrotliSharedDictionaryType type, size_t data_size, const uint8_t data[data_size])"
+
+.PP
+Adds LZ77 prefix dictionary, adds or replaces built-in static dictionary and transforms\&. Attached dictionary ownership is not transferred\&. Data provided to this method should be kept accessible until decoding is finished and decoder instance is destroyed\&.
+.PP
+\fBNote:\fP
+.RS 4
+Dictionaries could NOT be attached after actual decoding is started\&.
+.RE
+.PP
+\fBParameters:\fP
+.RS 4
+\fIstate\fP decoder instance 
+.br
+\fItype\fP dictionary data format 
+.br
+\fIdata_size\fP length of memory region pointed by \fCdata\fP 
+.br
+\fIdata\fP dictionary data in format corresponding to \fCtype\fP 
+.RE
+.PP
+\fBReturns:\fP
+.RS 4
+\fBBROTLI_FALSE\fP if dictionary is corrupted, or dictionary count limit is reached 
+.PP
+\fBBROTLI_TRUE\fP if dictionary is accepted / attached 
+.RE
+.PP
+
 .SS "\fBBrotliDecoderState\fP* BrotliDecoderCreateInstance (\fBbrotli_alloc_func\fP alloc_func, \fBbrotli_free_func\fP free_func, void * opaque)"
 
 .PP
diff --git a/docs/encode.h.3 b/docs/encode.h.3
index 0cab816..e31b6b4 100644
--- a/docs/encode.h.3
+++ b/docs/encode.h.3
@@ -1,4 +1,4 @@
-.TH "encode.h" 3 "Thu Feb 22 2018" "Brotli" \" -*- nroff -*-
+.TH "encode.h" 3 "August 2021" "Brotli" \" -*- nroff -*-
 .ad l
 .nh
 .SH NAME
@@ -76,6 +76,10 @@
 
 .in +1c
 .ti -1c
+.RI "\fBBROTLI_BOOL\fP \fBBrotliEncoderAttachPreparedDictionary\fP (\fBBrotliEncoderState\fP *state, const BrotliEncoderPreparedDictionary *dictionary)"
+.br
+.RI "\fIAttaches a prepared dictionary of any type to the encoder\&. \fP"
+.ti -1c
 .RI "\fBBROTLI_BOOL\fP \fBBrotliEncoderCompress\fP (int quality, int lgwin, \fBBrotliEncoderMode\fP mode, size_t input_size, const uint8_t input_buffer[input_size], size_t *encoded_size, uint8_t encoded_buffer[*encoded_size])"
 .br
 .RI "\fIPerforms one-shot memory-to-memory compression\&. \fP"
@@ -104,6 +108,10 @@
 .br
 .RI "\fICalculates the output size bound for the given \fCinput_size\fP\&. \fP"
 .ti -1c
+.RI "BrotliEncoderPreparedDictionary * \fBBrotliEncoderPrepareDictionary\fP (BrotliSharedDictionaryType type, size_t data_size, const uint8_t data[data_size], int quality, \fBbrotli_alloc_func\fP alloc_func, \fBbrotli_free_func\fP free_func, void *opaque)"
+.br
+.RI "\fIPrepares a shared dictionary from the given file format for the encoder\&. \fP"
+.ti -1c
 .RI "\fBBROTLI_BOOL\fP \fBBrotliEncoderSetParameter\fP (\fBBrotliEncoderState\fP *state, \fBBrotliEncoderParameter\fP param, uint32_t value)"
 .br
 .RI "\fISets the specified parameter to the given encoder instance\&. \fP"
@@ -318,6 +326,19 @@
 Range is not artificially limited, but all the values greater or equal to maximal window size have the same effect\&. Values greater than 2**30 are not allowed\&. 
 .SH "Function Documentation"
 .PP 
+.SS "\fBBROTLI_BOOL\fP BrotliEncoderAttachPreparedDictionary (\fBBrotliEncoderState\fP * state, const BrotliEncoderPreparedDictionary * dictionary)"
+
+.PP
+Attaches a prepared dictionary of any type to the encoder\&. Can be used multiple times to attach multiple dictionaries\&. The dictionary type was determined by BrotliEncoderPrepareDictionary\&. Multiple raw prefix dictionaries and/or max 1 serialized dictionary with custom words can be attached\&.
+.PP
+\fBReturns:\fP
+.RS 4
+\fBBROTLI_FALSE\fP in case of error 
+.PP
+\fBBROTLI_TRUE\fP otherwise 
+.RE
+.PP
+
 .SS "\fBBROTLI_BOOL\fP BrotliEncoderCompress (int quality, int lgwin, \fBBrotliEncoderMode\fP mode, size_t input_size, const uint8_t input_buffer[input_size], size_t * encoded_size, uint8_t encoded_buffer[*encoded_size])"
 
 .PP
@@ -509,6 +530,29 @@
 .RE
 .PP
 
+.SS "BrotliEncoderPreparedDictionary* BrotliEncoderPrepareDictionary (BrotliSharedDictionaryType type, size_t data_size, const uint8_t data[data_size], int quality, \fBbrotli_alloc_func\fP alloc_func, \fBbrotli_free_func\fP free_func, void * opaque)"
+
+.PP
+Prepares a shared dictionary from the given file format for the encoder\&. \fCalloc_func\fP and \fCfree_func\fP \fBMUST\fP be both zero or both non-zero\&. In the case they are both zero, default memory allocators are used\&. \fCopaque\fP is passed to \fCalloc_func\fP and \fCfree_func\fP when they are called\&. \fCfree_func\fP has to return without doing anything when asked to free a NULL pointer\&.
+.PP
+\fBParameters:\fP
+.RS 4
+\fItype\fP type of dictionary stored in data 
+.br
+\fIdata_size\fP size of \fCdata\fP buffer 
+.br
+\fIdata\fP pointer to the dictionary data 
+.br
+\fIquality\fP the maximum Brotli quality to prepare the dictionary for, use BROTLI_MAX_QUALITY by default 
+.br
+\fIalloc_func\fP custom memory allocation function 
+.br
+\fIfree_func\fP custom memory free function 
+.br
+\fIopaque\fP custom memory manager handle 
+.RE
+.PP
+
 .SS "\fBBROTLI_BOOL\fP BrotliEncoderSetParameter (\fBBrotliEncoderState\fP * state, \fBBrotliEncoderParameter\fP param, uint32_t value)"
 
 .PP
diff --git a/docs/types.h.3 b/docs/types.h.3
index bef9313..3d8a98c 100644
--- a/docs/types.h.3
+++ b/docs/types.h.3
@@ -1,4 +1,4 @@
-.TH "types.h" 3 "Thu Feb 22 2018" "Brotli" \" -*- nroff -*-
+.TH "types.h" 3 "August 2021" "Brotli" \" -*- nroff -*-
 .ad l
 .nh
 .SH NAME
diff --git a/go/WORKSPACE b/go/WORKSPACE
index 8fb62e5..03d38da 100644
--- a/go/WORKSPACE
+++ b/go/WORKSPACE
@@ -20,4 +20,4 @@
 
 go_rules_dependencies()
 
-go_register_toolchains(version = "1.16")
\ No newline at end of file
+go_register_toolchains(version = "1.16")
diff --git a/java/org/brotli/dec/pom.xml b/java/org/brotli/dec/pom.xml
index 8701874..e7f9fd9 100644
--- a/java/org/brotli/dec/pom.xml
+++ b/java/org/brotli/dec/pom.xml
@@ -76,6 +76,9 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-javadoc-plugin</artifactId>
         <version>2.10.4</version>
+        <configuration>
+          <source>8</source>
+        </configuration>
         <executions>
           <execution>
             <id>attach-javadocs</id>
diff --git a/research/BUILD.libdivsufsort b/research/BUILD.libdivsufsort
index a6deb5b..aeea923 100644
--- a/research/BUILD.libdivsufsort
+++ b/research/BUILD.libdivsufsort
@@ -38,7 +38,8 @@
     srcs = ["include/config.h.cmake"],
     outs = ["include/config.h"],
     cmd = ("awk '{ " +
-           "gsub(/@HAVE_IO_H 1@/, \"HAVE_IO_H 0\"); " +
+           "gsub(/HAVE_IO_H 1/, \"HAVE_IO_H 0\"); " +
+           "gsub(/HAVE_STRINGS_H 1/, \"HAVE_STRINGS_H 0\"); " +
            commom_awk_replaces +
            "print; }' $(<) > $(@)"),
 )
diff --git a/research/WORKSPACE b/research/WORKSPACE
index 358f87d..343c3bb 100644
--- a/research/WORKSPACE
+++ b/research/WORKSPACE
@@ -12,6 +12,7 @@
     build_file = "@//:BUILD.libdivsufsort",
     commit = "5f60d6f026c30fb4ac296f696b3c8b0eb71bd428",
     remote = "https://github.com/y-256/libdivsufsort",
+    shallow_since = "1445958113 +0900",
 )
 
 new_git_repository(
@@ -27,4 +28,5 @@
 """,
     commit = "ca7cb332011ec37a8436487f210f396b84bd8273",
     remote = "https://github.com/hillbig/esaxx",
+    shallow_since = "1391400691 +0900",
 )
diff --git a/research/brotli_decoder.c b/research/brotli_decoder.c
index 4b0bc4a..3febcbd 100644
--- a/research/brotli_decoder.c
+++ b/research/brotli_decoder.c
@@ -6,7 +6,17 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+
+#if !defined(_WIN32)
 #include <unistd.h>
+#else
+#include <io.h>
+#define fdopen _fdopen
+#if !defined(__MINGW32__)
+#define STDIN_FILENO _fileno(stdin)
+#define STDOUT_FILENO _fileno(stdout)
+#endif
+#endif
 
 #include <brotli/decode.h>
 
diff --git a/research/deorummolae.cc b/research/deorummolae.cc
index f12acd1..23ac1aa 100644
--- a/research/deorummolae.cc
+++ b/research/deorummolae.cc
@@ -5,6 +5,10 @@
 
 #include "third_party/esaxx/sais.hxx"
 
+#if defined(_MSC_VER)
+#include <intrin.h>  /* __popcnt64 */
+#endif
+
 /* Used for quick SA-entry to file mapping. Each file is padded to size that
    is a multiple of chunk size. */
 #define CHUNK_SIZE 64
@@ -30,7 +34,11 @@
 typedef int32_t TextSaIdx;
 
 static size_t popcount(uint64_t u) {
+#if defined(_MSC_VER)
+  return static_cast<size_t>(__popcnt64(u));
+#else
   return static_cast<size_t>(__builtin_popcountll(u));
+#endif
 }
 
 /* Condense terminators and pad file entries. */
diff --git a/research/dictionary_generator.cc b/research/dictionary_generator.cc
index 715723f..7df55ad 100644
--- a/research/dictionary_generator.cc
+++ b/research/dictionary_generator.cc
@@ -3,7 +3,9 @@
 #include <cstdio>
 #include <cstring>
 #include <fstream>
+#if !defined(_MSC_VER)
 #include <glob.h>
+#endif
 #include <vector>
 
 #include "./deorummolae.h"
@@ -268,14 +270,19 @@
       }
     }
 
+    bool ok = true;
+#if defined(_MSC_VER)
+        const char* resolved_path = argv[i];
+#else
     glob_t resolved_paths;
     memset(&resolved_paths, 0, sizeof(resolved_paths));
-    bool ok = true;
     if (glob(argv[i], GLOB_TILDE, NULL, &resolved_paths) == 0) {
       for(size_t j = 0; j < resolved_paths.gl_pathc; ++j) {
-        std::string content = readFile(resolved_paths.gl_pathv[j]);
+        const char* resolved_path = resolved_paths.gl_pathv[j];
+#endif
+        std::string content = readFile(resolved_path);
         if (chunkLen == 0) {
-          paths.emplace_back(resolved_paths.gl_pathv[j]);
+          paths.emplace_back(resolved_path);
           data.insert(data.end(), content.begin(), content.end());
           total += content.size();
           sizes.push_back(content.size());
@@ -293,11 +300,13 @@
           total += chunk.size();
           sizes.push_back(chunk.size());
         }
+#if !defined(_MSC_VER)
       }
     } else {
       ok = false;
     }
     globfree(&resolved_paths);
+#endif
     if (!ok) exit(1);
   }
 
diff --git a/scripts/.bintray.json b/scripts/.bintray.json
deleted file mode 100644
index 17f99ed..0000000
--- a/scripts/.bintray.json
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-    "package": {
-        "name": "bin",
-        "repo": "brotli",
-        "subject": "eustas"
-    },
-
-    "version": {"name": "latest"},
-
-    "files": [
-        {
-            "includePattern": "brotli.zip",
-            "uploadPattern": "brotli-${TRAVIS_OS_NAME}-${RELEASE_DATE}.zip",
-            "matrix_params": {"override": 1}
-        }
-    ],
-
-    "publish": true
-}
diff --git a/scripts/.configure-custom.sh b/scripts/.configure-custom.sh
deleted file mode 100644
index f1f641a..0000000
--- a/scripts/.configure-custom.sh
+++ /dev/null
@@ -1 +0,0 @@
-#!/usr/bin/env bash
diff --git a/scripts/.travis.sh b/scripts/.travis.sh
deleted file mode 100755
index b5ad13a..0000000
--- a/scripts/.travis.sh
+++ /dev/null
@@ -1,81 +0,0 @@
-#!/bin/bash
-
-case "$1" in
-    "before_install")
-	;;
-    "install")
-	case "${TRAVIS_OS_NAME}" in
-	    "osx")
-		brew update >/dev/null
-		brew install binutils
-
-		case "${CC}" in
-		    "gcc-"*)
-			which ${CC} || brew install $(echo "${CC}" | sed 's/\-/@/') || brew link --overwrite $(echo "${CC}" | sed 's/\-/@/')
-			;;
-		esac
-
-		case "${BUILD_SYSTEM}" in
-		    "bazel")
-			brew cask install homebrew/cask-versions/adoptopenjdk8
-			brew install bazel
-			;;
-		esac
-		;;
-	    "linux")
-		case "${CC}" in
-		    "pgcc")
-			wget 'https://raw.githubusercontent.com/nemequ/pgi-travis/de6212d94fd0e7d07a6ef730c23548c337c436a7/install-pgi.sh'
-			echo 'acd3ef995ad93cfb87d26f65147395dcbedd4c3c844ee6ec39616f1a347c8df5  install-pgi.sh' | sha256sum -c --strict || exit 1
-			/bin/sh install-pgi.sh
-			;;
-		esac
-		;;
-	esac
-	;;
-    "script")
-	case "${BUILD_SYSTEM}" in
-	    "cmake")
-		mkdir builddir && cd builddir
-		CMAKE_FLAGS=
-		if [ "${CROSS_COMPILE}" = "yes" ]; then
-		    CMAKE_FLAGS="-DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=NEVER -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY -DCMAKE_SYSTEM_NAME=Windows -DCMAKE_RC_COMPILER=${RC_COMPILER}"
-		fi
-		cmake ${CMAKE_FLAGS} -DCMAKE_C_COMPILER="$CC" -DCMAKE_CXX_COMPILER="$CXX" -DENABLE_SANITIZER="${SANITIZER}" -DCMAKE_C_FLAGS="${CFLAGS}" .. || exit 1
-		make VERBOSE=1 || exit 1
-		ctest -V || exit 1
-		;;
-	    "python")
-		python setup.py test
-		;;
-	    "maven")
-		cd java/org/brotli
-		mvn install && cd integration && mvn verify
-		;;
-	    "autotools")
-		./bootstrap && ./configure && make
-		;;
-	    "fuzz")
-		./c/fuzz/test_fuzzer.sh
-		;;
-	    "bazel")
-		bazel build -c opt ...:all &&
-		cd go && bazel test -c opt ...:all && cd .. &&
-		cd java && bazel test -c opt ...:all && cd .. &&
-		cd js && bazel test -c opt ...:all && cd .. &&
-		cd research && bazel build -c opt ...:all && cd ..
-		;;
-	esac
-	;;
-    "after_success")
-	;;
-    "before_deploy")
-	case "${BUILD_SYSTEM}" in
-	    "bazel")
-		export RELEASE_DATE=`date +%Y-%m-%d`
-		perl -p -i -e 's/\$\{([^}]+)\}/defined $ENV{$1} ? $ENV{$1} : $&/eg' scripts/.bintray.json
-		zip -j9 brotli.zip bazel-bin/libbrotli*.a bazel-bin/libbrotli*.so bazel-bin/brotli
-		;;
-	esac
-	;;
-esac
diff --git a/scripts/appveyor.yml b/scripts/appveyor.yml
deleted file mode 100644
index e52f65a..0000000
--- a/scripts/appveyor.yml
+++ /dev/null
@@ -1,111 +0,0 @@
-branches:
-  only:
-  - master
-
-environment:
-  matrix:
-  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-    BUILD_SYSTEM: CMake
-    GENERATOR: Visual Studio 15 2017 Win64
-    CONFIG: Release
-
-  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-    BUILD_SYSTEM: CMake
-    GENERATOR: Visual Studio 15 2017 Win64
-    CONFIG: Debug
-
-  - BUILD_SYSTEM: CMake
-    GENERATOR: Visual Studio 14 2015 Win64
-    CONFIG: Debug
-
-  - BUILD_SYSTEM: CMake
-    GENERATOR: Visual Studio 14 2015
-    CONFIG: Debug
-
-  - BUILD_SYSTEM: Python
-    PYTHON: "C:\\Python27"
-    PYTHON_VERSION: "2.7.x"
-    PYTHON_ARCH: "32"
-
-  - BUILD_SYSTEM: Python
-    PYTHON: "C:\\Python36-x64"
-    PYTHON_VERSION: "3.6.x"
-    PYTHON_ARCH: "64"
-
-  - BUILD_SYSTEM: make
-    ARCH: "i686"
-
-  - BUILD_SYSTEM: make
-    ARCH: "x86_64"
-
-  - BUILD_SYSTEM: bazel
-
-install:
-- IF "%BUILD_SYSTEM%"=="Python" (
-    SET "PATH=%PYTHON%;%PYTHON%\Scripts;%PATH%" &&
-    python -m pip install --upgrade pip &&
-    pip install --upgrade setuptools
-  )
-- IF "%BUILD_SYSTEM%"=="make" (
-    IF "%ARCH%"=="i686" (
-      SET "TOOLCHAIN=i686-6.3.0-posix-dwarf-rt_v5-rev1\mingw32"
-    ) ELSE (
-      SET "TOOLCHAIN=x86_64-7.3.0-posix-seh-rt_v5-rev0\mingw64"
-    )
-  )
-- IF "%BUILD_SYSTEM%"=="bazel" (
-    appveyor DownloadFile https://github.com/bazelbuild/bazel/releases/download/2.2.0/bazel-2.2.0-windows-x86_64.exe -FileName bazel.exe
-  )
-
-before_build:
-- FOR /f %%i in ('C:\cygwin64\bin\date.exe +%%Y-%%m-%%d') DO SET "RELEASE_DATE=%%i"
-- IF "%BUILD_SYSTEM%"=="CMake" ( mkdir builddir && cd builddir && cmake -G "%GENERATOR%" .. )
-- IF "%BUILD_SYSTEM%"=="make" (
-    SET "CC=gcc" &&
-    SET "PATH=C:\mingw-w64\%TOOLCHAIN%\bin;%PATH%" &&
-    COPY C:\msys64\usr\bin\make.exe C:\mingw-w64\%TOOLCHAIN%\bin\make.exe
-  )
-- SET "ROOT=%APPVEYOR_BUILD_FOLDER%"
-
-build_script:
-- IF "%BUILD_SYSTEM%"=="CMake" ( cmake --build . --config %CONFIG% )
-- IF "%BUILD_SYSTEM%"=="Python" ( python setup.py build_ext )
-- IF "%BUILD_SYSTEM%"=="make" (
-    sh -c "make brotli" &&
-    cd bin && 7z a -tzip -mx9 brotli-win-%ARCH%-%RELEASE_DATE%.zip brotli.exe &&
-    appveyor PushArtifact brotli-win-%ARCH%-%RELEASE_DATE%.zip && cd ..
-  )
-- IF "%BUILD_SYSTEM%"=="bazel" (
-    cd java &&
-      %ROOT%\bazel.exe --batch build -c opt org/brotli/wrapper/...:all &&
-      python %ROOT%\scripts\fix-win-bazel-build.py &&
-      cd bazel-bin &&
-        7z a -tzip -mx9 brotli-win-bazel-jni-%RELEASE_DATE%.zip brotli_jni.dll &&
-        appveyor PushArtifact brotli-win-bazel-jni-%RELEASE_DATE%.zip &&
-      cd .. &&
-    cd ..
-  )
-
-test_script:
-- IF "%BUILD_SYSTEM%"=="CMake" ( ctest --output-on-failure --interactive-debug-mode 0 -C %CONFIG% )
-- IF "%BUILD_SYSTEM%"=="Python" ( python setup.py test )
-- IF "%BUILD_SYSTEM%"=="make" ( sh -c "make test" )
-- IF "%BUILD_SYSTEM%"=="bazel" (
-    cd java &&
-      %ROOT%\bazel.exe --batch test -c opt --test_output streamed org/brotli/wrapper/...:all &&
-    cd ..
-  )
-
-deploy:
-- provider: BinTray
-  on:
-    branch: master
-  username: eustas
-  api_key:
-    secure: B3rM8JYeIHIw6BfOjHggAeyTmxEf8ZDYmyF9gCwqyWaxyxECD9BuN50SiV2KE/RI
-  subject: eustas
-  repo: brotli
-  package: bin
-  version: latest
-  publish: true
-  override: true
diff --git a/scripts/fix-win-bazel-build.py b/scripts/fix-win-bazel-build.py
deleted file mode 100644
index 7a9b211..0000000
--- a/scripts/fix-win-bazel-build.py
+++ /dev/null
@@ -1,36 +0,0 @@
-import fnmatch
-import os
-import os.path
-from shutil import copyfile
-
-print('Searching for manifests...')
-
-matches = []
-for root, dirnames, filenames in os.walk('bazel-bin\\org\\brotli'):
-  for filename in fnmatch.filter(filenames, '*.runfiles_manifest'):
-    matches.append(os.path.join(root, filename))
-
-for match in matches:
-  print('Scanning manifest ' + match)
-  runfiles = match[:-len('_manifest')]
-  with open(match) as manifest:
-    for entry in manifest:
-      entry = entry.strip()
-      if not entry.startswith("org_brotli_java"):
-        continue
-      if entry.startswith('org_brotli_java/external'):
-        continue
-      (alias, space, link) = entry.partition(' ')
-      if alias.endswith('.jar') or alias.endswith('.exe'):
-        continue
-      link = link.replace('/', '\\')
-      alias = alias.replace('/', '\\')
-      dst = os.path.join(runfiles, alias)
-      if not os.path.exists(dst):
-        print(link + ' -> ' + dst)
-        parent = os.path.dirname(dst)
-        if not os.path.exists(parent):
-          os.makedirs(parent)
-        copyfile(link, dst)
-
-print('Finished resolving symlinks')