Compile Git for host and Android target platforms
- Rename CrossCompileGitForAndroid.sh to CompileGitForAllTargetPlatforms.sh and support host, Android-only, and all-target modes. - Compile a development-host Git binary at build/host-git/libgit.so for JVM tests. - Route level and sandbox tests through GITHUG_TEST_GIT_BINARY so they exercise the compiled host Git rather than the system Git fallback. - Cross-compile packaged Git binaries for arm64-v8a, armeabi-v7a, x86, and x86_64 Android targets. - Remove the temporary device-bound Pull rebase instrumentation path from the previous debugging attempt.
This commit is contained in:
Joe Tretter
173
CompileGitForAllTargetPlatforms.sh
Executable file
173
CompileGitForAllTargetPlatforms.sh
Executable file
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#!/usr/bin/env bash
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PROJECT_DIR="$SCRIPT_DIR"
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SDK_DIR="$PROJECT_DIR/android-sdk"
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NDK_DIR="$SDK_DIR/ndk/27.2.12479018"
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TOOLBIN="$NDK_DIR/toolchains/llvm/prebuilt/linux-x86_64/bin"
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TMP_DIR="$PROJECT_DIR/.tmp-android-build"
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GIT_SRC_DIR="$TMP_DIR/git-src"
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HOST_GIT_DIR="$PROJECT_DIR/build/host-git"
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HOST_GIT_BINARY="$HOST_GIT_DIR/libgit.so"
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ANDROID_JNI_DIR="$PROJECT_DIR/app/src/main/jniLibs"
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ANDROID_API=24
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log() {
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printf '\n[%s] %s\n' "compile-git" "$1"
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}
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require_path() {
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if [ ! -e "$1" ]; then
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echo "Required path not found: $1" >&2
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exit 1
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fi
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}
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require_tool() {
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if ! command -v "$1" >/dev/null 2>&1; then
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echo "Missing required tool: $1" >&2
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exit 1
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fi
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}
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ensure_git_source() {
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mkdir -p "$TMP_DIR"
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if [ ! -d "$GIT_SRC_DIR/.git" ]; then
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log "Cloning Git source"
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git clone --depth 1 https://github.com/git/git.git "$GIT_SRC_DIR"
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else
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log "Using existing Git source checkout"
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fi
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}
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common_git_make_args() {
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printf '%s\n' \
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NO_OPENSSL=YesPlease \
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NO_CURL=YesPlease \
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NO_EXPAT=YesPlease \
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NO_GETTEXT=YesPlease \
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NO_TCLTK=YesPlease \
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NO_PERL=YesPlease \
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NO_PYTHON=YesPlease \
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NO_INSTALL_HARDLINKS=YesPlease \
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NO_ICONV=YesPlease \
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NO_REGEX=NeedsStartEnd \
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HAVE_ALLOCA_H=YesPlease \
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HAVE_PATHS_H=YesPlease \
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HAVE_CLOCK_GETTIME=YesPlease \
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HAVE_CLOCK_MONOTONIC=YesPlease \
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HAVE_GETDELIM=YesPlease \
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FREAD_READS_DIRECTORIES=UnfortunatelyYes \
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CSPRNG_METHOD=
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}
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build_host_git() {
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log "Building Git for development host"
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cd "$GIT_SRC_DIR"
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make clean >/dev/null 2>&1 || true
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mapfile -t make_args < <(common_git_make_args)
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make -j"$(nproc 2>/dev/null || printf 4)" "${make_args[@]}" git
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mkdir -p "$HOST_GIT_DIR"
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cp git "$HOST_GIT_BINARY"
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chmod 755 "$HOST_GIT_BINARY"
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log "Host test Git binary: $HOST_GIT_BINARY"
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"$HOST_GIT_BINARY" --version
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}
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build_android_git_for_abi() {
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local abi="$1"
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local cc="$2"
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local output_dir="$ANDROID_JNI_DIR/$abi"
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require_path "$TOOLBIN/${cc}"
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log "Building Git for Android $abi"
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cd "$GIT_SRC_DIR"
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make clean >/dev/null 2>&1 || true
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mapfile -t make_args < <(common_git_make_args)
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make -j"$(nproc 2>/dev/null || printf 4)" \
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uname_S=Android \
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uname_O=Android \
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NO_PTHREADS=YesPlease \
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NO_LIBGEN_H=YesPlease \
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HAVE_DEV_TTY=YesPlease \
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CC="$cc" \
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AR=llvm-ar \
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RANLIB=llvm-ranlib \
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STRIP=llvm-strip \
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"${make_args[@]}" \
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git
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log "Validating Android $abi binary"
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file git
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readelf -h git | sed -n '1,12p'
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mkdir -p "$output_dir"
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llvm-strip -s git -o "$output_dir/libgit.so"
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chmod 755 "$output_dir/libgit.so"
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ls -lh "$output_dir/libgit.so"
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}
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build_android_git() {
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require_path "$NDK_DIR"
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export PATH="$TOOLBIN:$PATH"
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build_android_git_for_abi "arm64-v8a" "aarch64-linux-android${ANDROID_API}-clang"
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build_android_git_for_abi "armeabi-v7a" "armv7a-linux-androideabi${ANDROID_API}-clang"
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build_android_git_for_abi "x86" "i686-linux-android${ANDROID_API}-clang"
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build_android_git_for_abi "x86_64" "x86_64-linux-android${ANDROID_API}-clang"
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}
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print_usage() {
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cat <<EOF_USAGE
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Usage: bash ./CompileGitForAllTargetPlatforms.sh [--host | --android | --all]
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--host Compile Git for the development host and copy it to build/host-git/libgit.so
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--android Cross-compile Git for Android ABIs served through Google Play
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--all Compile both host and Android targets (default)
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EOF_USAGE
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}
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main() {
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case "${1:---all}" in
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--host|--android|--all)
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;;
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-h|--help)
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print_usage
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return
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;;
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*)
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echo "Unknown argument: $1" >&2
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print_usage >&2
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exit 1
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;;
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esac
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require_tool git
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require_tool make
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require_tool perl
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require_tool clang
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require_tool pkg-config
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require_tool readelf
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ensure_git_source
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case "${1:---all}" in
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--host)
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build_host_git
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;;
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--android)
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build_android_git
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;;
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--all)
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build_host_git
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build_android_git
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;;
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esac
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}
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main "$@"
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