mirror of
https://github.com/patchzyy/wiicompiled
synced 2026-10-20 13:36:47 -04:00
patchzyy
96 lines
4.2 KiB
Bash
Executable File
96 lines
4.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Extract a user-owned Mario Kart Wii PAL (RMCP01) disc image for a local build.
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# This script deliberately contains no game data and is intended for the macOS
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# setup application and for maintainers testing that setup path.
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set -euo pipefail
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readonly EXPECTED_DOL_SHA256=80d18895b39c63bd80f457398bfcbb91b7d16ac116a41a88967e954080155b05
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readonly EXPECTED_REL_SHA256=16d9d146112541fefea701ecb5bc1a496f9d50e4a752fbb5b6778e7c6399f67d
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fail() { printf 'extract-disc.command: error: %s\n' "$*" >&2; exit 1; }
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sha256() { shasum -a 256 "$1" | awk '{ print $1 }'; }
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usage() {
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cat <<'EOF'
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Usage: extract-disc.command --game IMAGE --assets-dir DIR --nodtool PATH
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Extracts a user-owned Mario Kart Wii PAL RMCP01 image into DIR. The final
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layout is DIR/main.dol, DIR/StaticR.rel, and DIR/DATA. Existing data is left
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untouched unless the complete new extraction passes both content hash checks.
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EOF
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}
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game=""
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assets_dir=""
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nodtool=""
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while (($#)); do
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case "$1" in
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--game) game=${2:-}; shift 2 ;;
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--assets-dir) assets_dir=${2:-}; shift 2 ;;
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--nodtool) nodtool=${2:-}; shift 2 ;;
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-h|--help) usage; exit 0 ;;
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*) fail "unknown option: $1" ;;
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esac
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done
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[[ -f "$game" ]] || fail "disc image does not exist: $game"
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[[ -n "$assets_dir" ]] || fail "--assets-dir is required"
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[[ -x "$nodtool" ]] || fail "nodtool is not executable: $nodtool"
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assets_dir=$(mkdir -p "$assets_dir" && cd "$assets_dir" && pwd)
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# Sorted "<size> <path>" of every extracted file; recorded at extraction, compared on reuse.
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data_manifest() { (cd "$1" && find . -type f -print0 | LC_ALL=C sort -z | xargs -0 stat -f '%z %N'); }
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if [[ -d "$assets_dir/DATA/files" && -f "$assets_dir/.data-manifest" && -f "$assets_dir/main.dol" && -f "$assets_dir/StaticR.rel" ]] && \
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[[ $(sha256 "$assets_dir/main.dol") == "$EXPECTED_DOL_SHA256" && $(sha256 "$assets_dir/StaticR.rel") == "$EXPECTED_REL_SHA256" ]] && \
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[[ "$(data_manifest "$assets_dir/DATA")" == "$(cat "$assets_dir/.data-manifest")" ]]; then
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printf 'MKWCBUILD:STEP:disc-ready Reusing the verified extracted game assets\n'
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exit 0
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fi
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scratch=$(mktemp -d "${TMPDIR:-/tmp}/wiicompiled-disc.XXXXXX")
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cleanup() { rm -rf "$scratch"; }
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trap cleanup EXIT
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printf 'MKWCBUILD:STEP:validate-disc Checking the selected disc image\n'
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"$nodtool" info "$game" >/dev/null
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printf 'MKWCBUILD:STEP:extract-disc Extracting the user-owned disc image\n'
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"$nodtool" extract "$game" "$scratch/extracted"
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dol=$(find "$scratch/extracted" -type f -path '*/sys/main.dol' -print -quit)
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rel=$(find "$scratch/extracted" -type f -path '*/files/rel/StaticR.rel' -print -quit)
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[[ -n "$dol" ]] || fail 'nodtool extraction did not contain sys/main.dol'
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[[ -n "$rel" ]] || fail 'nodtool extraction did not contain files/rel/StaticR.rel'
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dol_sha=$(sha256 "$dol")
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rel_sha=$(sha256 "$rel")
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[[ $dol_sha == "$EXPECTED_DOL_SHA256" ]] || fail "main.dol does not match the clean PAL RMCP01 image (expected $EXPECTED_DOL_SHA256, got $dol_sha)"
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[[ $rel_sha == "$EXPECTED_REL_SHA256" ]] || fail "StaticR.rel does not match the clean PAL RMCP01 image (expected $EXPECTED_REL_SHA256, got $rel_sha)"
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data_root=$(dirname "$(dirname "$dol")")
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[[ -d "$data_root/files" ]] || fail 'nodtool extraction did not contain the Wii files directory'
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# Stage beside the destination so the final replacement stays on one volume.
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stage="$assets_dir/.extract-stage-$$"
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rm -rf "$stage"
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mkdir -p "$stage"
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ditto "$data_root" "$stage/DATA"
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ditto "$dol" "$stage/main.dol"
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ditto "$rel" "$stage/StaticR.rel"
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data_manifest "$stage/DATA" > "$stage/.data-manifest"
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backup="$assets_dir/.previous-extraction-$(date +%Y%m%d-%H%M%S)"
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if [[ -e "$assets_dir/DATA" || -e "$assets_dir/.data-manifest" || -e "$assets_dir/main.dol" || -e "$assets_dir/StaticR.rel" ]]; then
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mkdir -p "$backup"
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for item in DATA .data-manifest main.dol StaticR.rel; do
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[[ -e "$assets_dir/$item" ]] && mv "$assets_dir/$item" "$backup/$item"
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done
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fi
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mv "$stage/DATA" "$assets_dir/DATA"
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mv "$stage/.data-manifest" "$assets_dir/.data-manifest"
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mv "$stage/main.dol" "$assets_dir/main.dol"
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mv "$stage/StaticR.rel" "$assets_dir/StaticR.rel"
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rmdir "$stage"
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rm -rf "$backup"
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printf 'MKWCBUILD:STEP:disc-ready Verified and extracted clean PAL RMCP01 game assets\n'
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