Test separated ots hooks

hooks/pre-commit-ots

@@ -0,0 +1,125 @@
+#!/bin/bash
+# Git OpenTimestamp Pre-Commit Backfill Hook (ots CLI version)
+# Requires: opentimestamps-client (pipx install opentimestamps-client)
+
+set -e
+
+OUTPUT_DIR=".ots"
+STATUS_CACHE="$OUTPUT_DIR/.attestation-cache"
+
+mkdir -p "$OUTPUT_DIR"
+
+# Initialize cache
+if [ ! -f "$STATUS_CACHE" ]; then
+    echo "# Format: commit-hash:status:timestamp" > "$STATUS_CACHE"
+fi
+
+get_cached_status() {
+    local commit="$1"
+    local cache_line=$(grep "^$commit:" "$STATUS_CACHE" 2>/dev/null | tail -1)
+    if [ -n "$cache_line" ]; then
+        local status=$(echo "$cache_line" | cut -d: -f2)
+        local timestamp=$(echo "$cache_line" | cut -d: -f3)
+        local now=$(date +%s)
+        if [ "$((now - timestamp))" -lt 3600 ]; then
+            echo "$status"
+            return 0
+        fi
+    fi
+    return 1
+}
+
+cache_status() {
+    local commit="$1"
+    local status="$2"
+    echo "$commit:$status:$(date +%s)" >> "$STATUS_CACHE"
+}
+
+generate_proof() {
+    local hash="$1"
+    local output="$2"
+    local temp_file=$(mktemp)
+    local temp_ots="${temp_file}.ots"
+    
+    python3 -c "import sys; sys.stdout.buffer.write(bytes.fromhex('$hash'))" > "$temp_file"
+    ots stamp "$temp_file" 2>/dev/null
+    
+    if [ -f "$temp_ots" ]; then
+        mv "$temp_ots" "$output"
+        rm -f "$temp_file"
+        return 0
+    fi
+    rm -f "$temp_file"
+    return 1
+}
+
+is_attested() {
+    local proof_file="$1"
+    local pending_count=$(ots info "$proof_file" 2>&1 | grep -c "PendingAttestation" || echo "0")
+    [ "$pending_count" -eq 0 ]
+}
+
+upgrade_proof() {
+    local proof_file="$1"
+    ots upgrade "$proof_file" 2>/dev/null
+}
+
+echo "[ots] Backfilling proofs..."
+
+COMMITS=$(git rev-list --reverse HEAD)
+TOTAL=$(echo "$COMMITS" | wc -l)
+CURRENT=0
+UPDATED=0
+
+for COMMIT in $COMMITS; do
+    CURRENT=$((CURRENT + 1))
+    PROOF_FILE="$OUTPUT_DIR/${COMMIT}.ots"
+    
+    if [ $CURRENT -le 3 ] || [ $CURRENT -eq $TOTAL ]; then
+        echo "[ots] Processing $CURRENT/$TOTAL: ${COMMIT:0:8}"
+    elif [ $CURRENT -eq 4 ]; then
+        echo "[ots] ... processing remaining ..."
+    fi
+    
+    if [ -f "$PROOF_FILE" ]; then
+        CACHED_STATUS=$(get_cached_status "$COMMIT" || echo "")
+        
+        [ "$CACHED_STATUS" = "attested" ] && continue
+        
+        if is_attested "$PROOF_FILE"; then
+            cache_status "$COMMIT" "attested"
+            continue
+        fi
+        
+        cache_status "$COMMIT" "pending"
+        
+        CACHE_LINE=$(grep "^$COMMIT:" "$STATUS_CACHE" | tail -1)
+        CACHE_TIME=$(echo "$CACHE_LINE" | cut -d: -f3)
+        CACHE_AGE=$(($(date +%s) - CACHE_TIME))
+        
+        [ "$CACHE_AGE" -lt 600 ] && continue
+        
+        if upgrade_proof "$PROOF_FILE"; then
+            cache_status "$COMMIT" "attested"
+            UPDATED=$((UPDATED + 1))
+        fi
+    else
+        if generate_proof "$COMMIT" "$PROOF_FILE"; then
+            cache_status "$COMMIT" "pending"
+            UPDATED=$((UPDATED + 1))
+        fi
+    fi
+done
+
+# Update latest proof
+LATEST_COMMIT=$(git rev-parse HEAD)
+[ -f "$OUTPUT_DIR/${LATEST_COMMIT}.ots" ] && cp "$OUTPUT_DIR/${LATEST_COMMIT}.ots" "$OUTPUT_DIR/proof.ots"
+
+# Save commit chain
+rm -f "$OUTPUT_DIR/commit-chain.txt"
+git rev-list HEAD | while read COMMIT; do
+    PREV=$(git rev-parse ${COMMIT}^1 2>/dev/null || echo "")
+    [ -n "$PREV" ] && echo "$COMMIT:$PREV" >> "$OUTPUT_DIR/commit-chain.txt"
+done
+
+echo "[ots] Backfill complete: $UPDATED updated"