68 lines
2.4 KiB
Bash
68 lines
2.4 KiB
Bash
#!/bin/bash
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#
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# Install Arch distro CPython + hello.py into an existing guest root tree.
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# Prefer a native-disk staging directory (not /mnt/d).
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#
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# Usage (as root):
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# bash CODE/linux/install_guest_python.sh
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# ROOTFS=/root/arch_rootfs_work/rootfs bash CODE/linux/install_guest_python.sh
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# ROOTFS=/root/extra_rootfs_work/mnt bash CODE/linux/install_guest_python.sh
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set -Eeuo pipefail
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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ROOTFS="${ROOTFS:-/root/arch_rootfs_work/rootfs}"
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HELLO_SRC="$PROJECT_ROOT/SYSTEM/user/python/hello.py"
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if [ "$(id -u)" -ne 0 ]; then
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echo "[guest-python] ERROR: must run as root" >&2
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exit 1
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fi
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if [ ! -x "$ROOTFS/usr/bin/pacman" ] && [ ! -x "$ROOTFS/bin/pacman" ]; then
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echo "[guest-python] ERROR: $ROOTFS is not an Arch root (no pacman)" >&2
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exit 1
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fi
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# uutils mkdir (Ubuntu WSL) can error "Already exists" on -p; ignore that.
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ensure_dir() {
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[ -d "$1" ] && return 0
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/usr/bin/mkdir -p "$1" 2>/dev/null || true
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[ -d "$1" ]
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}
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ensure_dir "$ROOTFS/dev"
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ensure_dir "$ROOTFS/proc"
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ensure_dir "$ROOTFS/sys"
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ensure_dir "$ROOTFS/tmp"
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# Deshab staging rootfs often symlinks /var/lib/pacman -> /tmp/pacman/lib.
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ensure_dir "$ROOTFS/tmp/pacman/lib/sync"
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ensure_dir "$ROOTFS/tmp/pacman/cache/pkg"
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# Arch dropped [community]; leftover configs 404 on every -Sy.
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if [ -f "$ROOTFS/etc/pacman.conf" ]; then
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/usr/bin/sed -i '/^\[community\]/,/^$/d' "$ROOTFS/etc/pacman.conf" || true
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fi
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printf 'nameserver 1.1.1.1\n' > "$ROOTFS/tmp/resolv.conf"
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printf 'nameserver 1.1.1.1\n' > "$ROOTFS/etc/resolv.conf"
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/bin/mount --bind /dev "$ROOTFS/dev" 2>/dev/null || true
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/bin/mount --bind /proc "$ROOTFS/proc" 2>/dev/null || true
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/bin/mount --bind /sys "$ROOTFS/sys" 2>/dev/null || true
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cleanup() {
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set +e
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umount "$ROOTFS/dev" 2>/dev/null || true
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umount "$ROOTFS/proc" 2>/dev/null || true
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umount "$ROOTFS/sys" 2>/dev/null || true
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}
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trap cleanup EXIT INT TERM
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chroot "$ROOTFS" /usr/bin/pacman -Sy --noconfirm
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# Staging trees often already contain overlapping bootstrap files.
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chroot "$ROOTFS" /usr/bin/pacman -S --noconfirm --needed --overwrite '*' python
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/bin/mkdir -p "$ROOTFS/usr/local/share/deshab/python"
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if [ -f "$HELLO_SRC" ]; then
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install -m 0644 "$HELLO_SRC" "$ROOTFS/usr/local/share/deshab/python/hello.py"
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fi
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echo "[guest-python] $(chroot "$ROOTFS" /usr/bin/python3 --version)"
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echo "[guest-python] hello.py -> $ROOTFS/usr/local/share/deshab/python/hello.py"
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