Build Aseprite from source on Ubuntu 20.04

build-aseprite.sh

#!/bin/bash

# dependencies
[ -d "$HOME/aseprite" ] && rm -rf "$HOME/aseprite"
[ -d "$HOME/deps" ] && rm -rf "$HOME/deps"
mkdir "$HOME/deps" && \
export PATH="${PATH}:${HOME}/deps" && \
sudo apt install -y g++ wget git unzip cmake ninja-build libx11-dev libxcursor-dev libxi-dev libgl1-mesa-dev libfontconfig1-dev python2

[ $? -ne 0 ] && exit $?

# skia
cd "$HOME/deps" && \
git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git --single-branch --depth=1 depot_tools && \
git clone https://github.com/aseprite/skia --recursive --single-branch --depth=1 -b aseprite-m96 && \
cd skia && \
python2 tools/git-sync-deps && \
bin/gn gen out/Release-x64 --args="is_debug=false is_official_build=true skia_use_system_expat=false skia_use_system_icu=false skia_use_system_libjpeg_turbo=false skia_use_system_libpng=false skia_use_system_libwebp=false skia_use_system_zlib=false skia_use_sfntly=false skia_use_freetype=true skia_use_harfbuzz=true skia_pdf_subset_harfbuzz=true skia_use_system_freetype2=false skia_use_system_harfbuzz=false" && \
ninja -C out/Release-x64 skia modules

[ $? -ne 0 ] && exit $?

# aseprite
cd "$HOME" && \
git clone https://github.com/aseprite/aseprite --recursive --single-branch --depth=1 aseprite && \
cd "$HOME/aseprite" && \
mkdir build && \
cd build && \
cmake \
  -DCMAKE_BUILD_TYPE=RelWithDebInfo \
  -DLAF_BACKEND=skia \
  -DSKIA_DIR="$HOME/deps/skia" \
  -DSKIA_LIBRARY_DIR="$HOME/deps/skia/out/Release-x64" \
  -DSKIA_LIBRARY="$HOME/deps/skia/out/Release-x64/libskia.a" \
  -G Ninja \
  .. && \
ninja aseprite