mirror of
https://github.com/sipeed/NanoKVM.git
synced 2026-09-11 00:22:56 -05:00
104 lines
3.7 KiB
Bash
Executable File
104 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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#
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# Compare a freshly built package against the currently published release.
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#
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# Purely informational: it exits 0 whatever it finds. The point is to make the
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# delta reviewable before the tarball is published, since the package is what
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# every device pulls over OTA. Unexpected entries here (a library that vanished,
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# an init script that changed without a matching commit) are worth a look.
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#
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# Usage: scripts/compare-release.sh <new-tarball> [base-url]
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set -uo pipefail
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NEW_TARBALL="${1:-}"
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BASE_URL="${2:-https://cdn.sipeed.com/nanokvm}"
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if [ -z "$NEW_TARBALL" ] || [ ! -f "$NEW_TARBALL" ]; then
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echo "Usage: $0 <new-tarball> [base-url]" >&2
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exit 1
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fi
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WORK="$(mktemp -d)"
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trap 'rm -rf "$WORK"' EXIT
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echo "[INFO] fetching published manifest from $BASE_URL/latest.json"
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if ! curl -fsSL "$BASE_URL/latest.json" -o "$WORK/latest.json"; then
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echo "[WARN] could not fetch latest.json - skipping comparison"
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exit 0
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fi
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cat "$WORK/latest.json"
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OLD_NAME="$(sed -n 's/.*"name"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p' "$WORK/latest.json")"
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if [ -z "$OLD_NAME" ]; then
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echo "[WARN] no \"name\" in latest.json - skipping comparison"
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exit 0
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fi
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echo "[INFO] downloading published package $OLD_NAME"
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if ! curl -fsSL "$BASE_URL/$OLD_NAME" -o "$WORK/$OLD_NAME"; then
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echo "[WARN] could not download $OLD_NAME - skipping comparison"
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exit 0
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fi
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mkdir -p "$WORK/old" "$WORK/new"
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if ! tar xzf "$WORK/$OLD_NAME" -C "$WORK/old"; then
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echo "[WARN] could not extract $OLD_NAME - skipping comparison"
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exit 0
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fi
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if ! tar xzf "$NEW_TARBALL" -C "$WORK/new"; then
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echo "[WARN] could not extract $(basename "$NEW_TARBALL") - skipping comparison"
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exit 0
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fi
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# Strip the nanokvm_<version>/ prefix so the two trees are comparable.
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OLD_ROOT="$(find "$WORK/old" -mindepth 1 -maxdepth 1 -type d | head -1)"
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NEW_ROOT="$(find "$WORK/new" -mindepth 1 -maxdepth 1 -type d | head -1)"
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if [ -z "$OLD_ROOT" ] || [ -z "$NEW_ROOT" ]; then
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echo "[WARN] could not locate a package root directory - skipping comparison"
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exit 0
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fi
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( cd "$OLD_ROOT" && find . -type f | sed 's|^\./||' | LC_ALL=C sort ) > "$WORK/old.list"
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( cd "$NEW_ROOT" && find . -type f | sed 's|^\./||' | LC_ALL=C sort ) > "$WORK/new.list"
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# An empty inventory would make every section below print "(none)", which reads
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# identically to "verified, nothing changed". Refuse to imply that.
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if [ ! -s "$WORK/old.list" ] || [ ! -s "$WORK/new.list" ]; then
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echo "[WARN] one of the packages produced an empty file list - comparison unreliable, skipping"
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exit 0
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fi
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echo
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echo "=============================================================="
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echo " $(basename "$OLD_ROOT") -> $(basename "$NEW_ROOT")"
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echo "=============================================================="
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printf ' files: %s -> %s\n' "$(wc -l < "$WORK/old.list" | tr -d ' ')" \
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"$(wc -l < "$WORK/new.list" | tr -d ' ')"
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echo
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echo "--- added ----------------------------------------------------"
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comm -13 "$WORK/old.list" "$WORK/new.list" | sed 's/^/ + /' || true
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echo
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echo "--- removed --------------------------------------------------"
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comm -23 "$WORK/old.list" "$WORK/new.list" | sed 's/^/ - /' || true
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echo
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echo "--- changed --------------------------------------------------"
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changed=0
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while IFS= read -r file; do
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if ! cmp -s "$OLD_ROOT/$file" "$NEW_ROOT/$file"; then
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old_size="$(wc -c < "$OLD_ROOT/$file" | tr -d ' ')"
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new_size="$(wc -c < "$NEW_ROOT/$file" | tr -d ' ')"
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printf ' ~ %-52s %s -> %s bytes\n' "$file" "$old_size" "$new_size"
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changed=$((changed + 1))
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fi
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done < <(comm -12 "$WORK/old.list" "$WORK/new.list")
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[ "$changed" -eq 0 ] && echo " (none)"
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echo
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echo "[INFO] comparison complete"
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