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## Summary The nightly OSV artifact generation in `fleetdm/vulnerabilities` failed over the weekend with: ``` fatal: error processing shallow info: 4 ``` at `cmd/osv-processor/sync-and-detect-changes.sh` during: ```bash git fetch --shallow-since="3 days ago" origin main ``` Root cause: `git fetch --shallow-since` errors out when the upstream (`canonical/ubuntu-security-notices`) has zero commits newer than the cutoff. Canonical didn't push anything over the weekend, so the 3-day window returned empty and upload-pack produced an unusable shallow response. Fix: - Fall back to `git fetch --depth=3` if `--shallow-since` still returns empty, so the initial clone always succeeds. Subsequent runs reuse the existing clone and take the other branch of the script (plain `git fetch origin main`), which doesn't have this failure mode. Failing run: https://github.com/fleetdm/vulnerabilities/actions/runs/24330589309/job/71035337352 ## Test plan - [x] Re-run the Ubuntu OSV artifact generation workflow; initial clone succeeds regardless of upstream push frequency. - [x] Manually exercise the cold-cache path locally: `rm -rf ubuntu-security-notices && ./cmd/osv-processor/sync-and-detect-changes.sh` — completes without error. <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Bug Fixes** * Improved initial repository sync: if the primary shallow fetch returns no commits, the process now falls back to a limited-depth fetch, warns the user, and shows recent commit history before continuing. Downstream change detection and existing behavior for already-cloned repos remain unchanged. <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Co-authored-by: Konstantin Sykulev <konst@sykulev.com>
121 lines
3.7 KiB
Bash
Executable file
121 lines
3.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Sync Canonical OSV repository using shallow clone with rolling window
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# Usage: ./sync-and-detect-changes.sh
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#
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# Outputs:
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# - Creates/updates ubuntu-security-notices directory (shallow clone)
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# - changed_files_today.txt and changed_files_yesterday.txt
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#
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# Exit codes:
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# 0: Success
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# 1: Error occurred
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set -euo pipefail
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# Configuration
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REPO_URL="https://github.com/canonical/ubuntu-security-notices.git"
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REPO_DIR="ubuntu-security-notices"
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DAYS_TO_KEEP=3 # how much git history to get for initial clone
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# Fallback depth used when --shallow-since returns no commits (upstream was quiet).
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# The sync only needs the tip commit to populate the working tree.
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# We grab a few extra commits so the warning log shows recent upstream activity for debugging.
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FALLBACK_DEPTH=3
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echo "=== OSV Repository Sync ==="
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echo ""
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if [ -d "$REPO_DIR/.git" ]; then
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echo "Repository exists, fetching new commits..."
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cd "$REPO_DIR"
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git config core.sparseCheckout true
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echo "osv/" > .git/info/sparse-checkout
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OLD_SHA=$(git rev-parse HEAD)
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OLD_COUNT=$(git log --oneline | wc -l | xargs)
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git fetch origin main
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NEW_SHA=$(git rev-parse origin/main)
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git reset --hard origin/main
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echo ""
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if [ "$OLD_SHA" = "$NEW_SHA" ]; then
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echo "No new commits (already at $NEW_SHA)"
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else
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echo "Updating: $OLD_SHA -> $NEW_SHA"
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fi
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NEW_COUNT=$(git log --oneline | wc -l | xargs)
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echo "History: $OLD_COUNT commits -> $NEW_COUNT commits"
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cd ..
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else
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echo "Cloning repository (shallow since ${DAYS_TO_KEEP} days ago)..."
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mkdir -p "$REPO_DIR"
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cd "$REPO_DIR"
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git init --initial-branch=main
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git remote add origin "$REPO_URL"
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git config core.sparseCheckout true
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echo "osv/" > .git/info/sparse-checkout
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if ! git fetch --shallow-since="${DAYS_TO_KEEP} days ago" origin main; then
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echo ""
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echo "WARNING: --shallow-since=${DAYS_TO_KEEP}d returned no commits."
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echo "Upstream has been quiet for >${DAYS_TO_KEEP} days. Falling back to --depth=${FALLBACK_DEPTH}."
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echo ""
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git fetch --depth="${FALLBACK_DEPTH}" origin main
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echo "Recent history:"
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git log --pretty=format:'%h %ci %s' origin/main
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echo ""
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echo ""
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fi
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git checkout -b main --track origin/main
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COMMIT_SHA=$(git rev-parse HEAD)
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COMMIT_COUNT=$(git log --oneline | wc -l | xargs)
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cd ..
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echo ""
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echo "Cloned at: $COMMIT_SHA"
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fi
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cd "$REPO_DIR"
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TODAY_UTC=$(date -u +%Y-%m-%d)
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YESTERDAY_UTC=$(date -u -v-1d +%Y-%m-%d 2>/dev/null || date -u -d "yesterday" +%Y-%m-%d)
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# Get files changed today (since midnight UTC today)
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git log --since="${TODAY_UTC}T00:00:00Z" --name-only --pretty="" -- osv/cve \
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| sed '/^$/d' | sort -u > "../changed_files_today.txt"
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# Get files changed yesterday (from midnight yesterday to midnight today UTC)
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git log --since="${YESTERDAY_UTC}T00:00:00Z" --until="${TODAY_UTC}T00:00:00Z" --name-only --pretty="" -- osv/cve \
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| sed '/^$/d' | sort -u > "../changed_files_yesterday.txt"
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TODAY_COUNT=$(wc -l < "../changed_files_today.txt" | xargs)
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YESTERDAY_COUNT=$(wc -l < "../changed_files_yesterday.txt" | xargs)
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cd ..
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echo "Today: $TODAY_COUNT CVE files changed"
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echo "Yesterday: $YESTERDAY_COUNT CVE files changed"
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echo ""
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echo "Sync Complete"
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cd "$REPO_DIR"
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FINAL_SHA=$(git rev-parse HEAD)
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FINAL_COUNT=$(git log --oneline | wc -l | xargs)
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cd ..
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du -sh "$REPO_DIR" | awk '{print "Size: " $1}'
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echo "REPO_SHA=$FINAL_SHA"
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echo "REPO_COMMITS=$FINAL_COUNT"
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echo "OSV_DIR=$REPO_DIR/osv/cve"
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echo "CHANGED_FILES_TODAY=changed_files_today.txt"
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echo "CHANGED_FILES_YESTERDAY=changed_files_yesterday.txt"
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echo "TODAY_COUNT=$TODAY_COUNT"
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echo "YESTERDAY_COUNT=$YESTERDAY_COUNT"
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exit 0
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