tests: increase robustness of fakedroid.sh

This commit is contained in:
Tobias Happ 2022-09-24 14:22:05 +02:00
parent 274bb4babd
commit 7cea00a1c7

View file

@ -8,73 +8,78 @@
set -ueo pipefail
QEMU_URL=https://github.com/multiarch/qemu-user-static/releases/download/v6.1.0-8/qemu-aarch64-static
QEMU=.fakedroid/inj/qemu-aarch64
INSTALLATION_DIR=/data/data/com.termux.nix/files/usr
TARGET_HOME=/data/data/com.termux.nix/files/home
REPO_DIR="$(dirname "$(dirname "$(readlink -f "$0")")")"
INJ_DIR="$REPO_DIR/.fakedroid/inj"
ENV_DIR="$REPO_DIR/.fakedroid/env"
mkdir -p .fakedroid/inj
mkdir -p .fakedroid/env/{$INSTALLATION_DIR,$TARGET_HOME,n-o-d}
QEMU_URL="https://github.com/multiarch/qemu-user-static/releases/download/v6.1.0-8/qemu-aarch64-static"
QEMU="$INJ_DIR/qemu-aarch64"
export PROOT_TMP_DIR=.fakedroid/env/$INSTALLATION_DIR/proot/tmp
export PROOT_L2S_DIR=.fakedroid/env/$INSTALLATION_DIR/proot/l2s
mkdir -p $PROOT_TMP_DIR
mkdir -p $PROOT_L2S_DIR
INSTALLATION_DIR="/data/data/com.termux.nix/files/usr"
TARGET_HOME="/data/data/com.termux.nix/files/home"
PASSTHROUGH_VARS=''
PASSTHROUGH_VARS+=" PROOT_TMP_DIR=$PROOT_TMP_DIR"
PASSTHROUGH_VARS+=" PROOT_L2S_DIR=$PROOT_L2S_DIR"
PASSTHROUGH_VARS+=" TERM=$TERM"
PASSTHROUGH_VARS+=" HOME=$TARGET_HOME"
PASSTHROUGH_VARS+=" USER=$USER"
set +u
[[ -n "$CACHIX_SIGNING_KEY" ]] && \
PASSTHROUGH_VARS+=" CACHIX_SIGNING_KEY=$CACHIX_SIGNING_KEY"
set -u
mkdir -p "$INJ_DIR"
mkdir -p "$ENV_DIR/"{"$INSTALLATION_DIR","$TARGET_HOME",n-o-d}
PROOT_ARGS=''
PROOT_ARGS+=' -r .fakedroid/env'
PROOT_ARGS+=" -q $QEMU"
PROOT_ARGS+=" -w $TARGET_HOME"
PROOT_ARGS+=" -b .fakedroid/env/$INSTALLATION_DIR/nix:/nix"
PROOT_ARGS+=" -b .fakedroid/env/$INSTALLATION_DIR/bin:/bin"
PROOT_ARGS+=" -b .fakedroid/env/$INSTALLATION_DIR/etc:/etc"
PROOT_ARGS+=" -b .fakedroid/env/$INSTALLATION_DIR/tmp:/tmp"
PROOT_ARGS+=" -b .fakedroid/env/$INSTALLATION_DIR/usr:/usr"
PROOT_ARGS+=' -b /dev'
PROOT_ARGS+=' -b /proc'
PROOT_ARGS+=' -b /sys'
PROOT_ARGS+=' --link2symlink'
export PROOT_TMP_DIR="$ENV_DIR/$INSTALLATION_DIR/proot/tmp"
export PROOT_L2S_DIR="$ENV_DIR/$INSTALLATION_DIR/proot/l2s"
mkdir -p "$PROOT_TMP_DIR" "$PROOT_L2S_DIR"
PASSTHROUGH_VARS=(
"PROOT_TMP_DIR=$PROOT_TMP_DIR"
"PROOT_L2S_DIR=$PROOT_L2S_DIR"
"TERM=$TERM"
"HOME=$TARGET_HOME"
"USER=$USER"
)
[[ -n "${CACHIX_SIGNING_KEY:-}" ]] && \
PASSTHROUGH_VARS+=("CACHIX_SIGNING_KEY=$CACHIX_SIGNING_KEY")
PROOT_ARGS=(
"-r" "$ENV_DIR"
"-q" "$QEMU"
"-w" "$TARGET_HOME"
"-b" "$ENV_DIR/$INSTALLATION_DIR/nix:/nix"
"-b" "$ENV_DIR/$INSTALLATION_DIR/bin:/bin"
"-b" "$ENV_DIR/$INSTALLATION_DIR/etc:/etc"
"-b" "$ENV_DIR/$INSTALLATION_DIR/tmp:/tmp"
"-b" "$ENV_DIR/$INSTALLATION_DIR/usr:/usr"
"-b" "/dev"
"-b" "/proc"
"-b" "/sys"
"--link2symlink"
)
# Procure a static QEMU for user emulation and a proot with our patches:
[[ -e .fakedroid/inj/qemu-aarch64 ]] || wget $QEMU_URL -O $QEMU
chmod +x $QEMU
[[ -e "$QEMU" ]] || wget "$QEMU_URL" -O "$QEMU"
chmod +x "$QEMU"
PROOT=$(nix-build --no-out-link tests/proot-test.nix)/bin/proot
PROOT="$(nix-build --no-out-link tests/proot-test.nix)/bin/proot"
# Do the first install if not installed yet:
if [[ ! -e .fakedroid/env/$INSTALLATION_DIR/etc ||
-e .fakedroid/env/$INSTALLATION_DIR/etc/UNINITIALIZED ]]; then
if [[ ! -e "$ENV_DIR/$INSTALLATION_DIR/etc" ||
-e "$ENV_DIR/$INSTALLATION_DIR/etc/UNINITIALIZED" ]]; then
# Build a zipball:
nix build --show-trace -f pkgs \
--argstr arch aarch64 \
--argstr nixOnDroidChannelURL file:///n-o-d/archive.tar.gz \
bootstrapZip -o .fakedroid/inj/nix-on-droid-aarch64
ZIPBALL=$(realpath .fakedroid/inj/nix-on-droid-aarch64/bootstrap-aarch64.zip)
bootstrapZip -o "$INJ_DIR/nix-on-droid-aarch64"
ZIPBALL="$(realpath "$INJ_DIR/nix-on-droid-aarch64/bootstrap-aarch64.zip")"
# Unpack the zipball the way the Android app does it:
pushd .fakedroid/env/$INSTALLATION_DIR
pushd "$ENV_DIR/$INSTALLATION_DIR"
unzip "$ZIPBALL"
chmod -R u+rw . # unzip results in -r-xr-xr-x files and directories
while read e; do
SYM_TGT=${e%%←*}
SYM_SRC=${e##*←}
while read -r e; do
SYM_TGT="${e%%←*}"
SYM_SRC="${e##*←}"
ln -sf "$SYM_TGT" "$SYM_SRC"
done < SYMLINKS.txt
while read e; do
while read -r e; do
chmod +x "$e"
done < EXECUTABLES.txt
rm SYMLINKS.txt EXECUTABLES.txt
@ -86,30 +91,31 @@ fi
# Uncommitted chages won't be picked up, just HEAD.
# /n-o-d/archive.tar.gz is used as a channel, /n-o-d/unpacked --- as a flake.
rm -rf .fakedroid/env/n-o-d; mkdir -p .fakedroid/env/n-o-d/unpacked
git archive --format=tar --prefix n-o-d/ HEAD \
> .fakedroid/env/n-o-d/archive.tar
rm -rf "$ENV_DIR/n-o-d"
mkdir -p "$ENV_DIR/n-o-d/unpacked"
git -C "$REPO_DIR" archive --format=tar --prefix n-o-d/ HEAD \
> "$ENV_DIR/n-o-d/archive.tar"
tar --strip-components=1 -xf \
.fakedroid/env/n-o-d/archive.tar -C .fakedroid/env/n-o-d/unpacked
gzip .fakedroid/env/n-o-d/archive.tar
"$ENV_DIR/n-o-d/archive.tar" -C "$ENV_DIR/n-o-d/unpacked"
gzip "$ENV_DIR/n-o-d/archive.tar"
# The 'first boot' proot invocation:
SH=$(readlink .fakedroid/env/$INSTALLATION_DIR/bin/sh)
SH="$(readlink "$ENV_DIR/$INSTALLATION_DIR/bin/sh")"
# 'first boot' execs interactive bash unconditionally;
# makes sense on device, requires us to work around it here though
env -i $PASSTHROUGH_VARS $PROOT $PROOT_ARGS \
$INSTALLATION_DIR/$SH ${INSTALLATION_DIR}/usr/lib/login-inner <<<'echo OK'
env -i "${PASSTHROUGH_VARS[@]}" "$PROOT" "${PROOT_ARGS[@]}" \
"$INSTALLATION_DIR/$SH" "${INSTALLATION_DIR}/usr/lib/login-inner" <<<'echo OK'
# this is usually done by login on 'first reboot'
[[ -e .fakedroid/env/${INSTALLATION_DIR}/usr/lib/.login-inner.new ]] &&
mv .fakedroid/env/${INSTALLATION_DIR}/usr/lib/.login-inner.new \
.fakedroid/env/${INSTALLATION_DIR}/usr/lib/login-inner
[[ -e "$ENV_DIR/$INSTALLATION_DIR/usr/lib/.login-inner.new" ]] &&
mv "$ENV_DIR/$INSTALLATION_DIR/usr/lib/.login-inner.new" \
"$ENV_DIR/${INSTALLATION_DIR}/usr/lib/login-inner"
# Actually execute something inside that fakedroid environment:
exec env -i $PASSTHROUGH_VARS $PROOT $PROOT_ARGS \
$INSTALLATION_DIR/$SH ${INSTALLATION_DIR}/usr/lib/login-inner "$@"
env -i "${PASSTHROUGH_VARS[@]}" "$PROOT" "${PROOT_ARGS[@]}" \
"$INSTALLATION_DIR/$SH" "$INSTALLATION_DIR/usr/lib/login-inner" "$@"