History

snapdir records where snapshots have been written and how they relate, building a lightweight history you can query without opening any store by hand. Three commands cover the common questions:

  • snapdir locationswhere have snapshots been recorded? (which directories and stores)

  • snapdir revisionswhich snapshots exist at a given location?

  • snapdir ancestorshow did we get here? (a snapshot's ancestor IDs and their locations)

These read snapdir's catalog of recorded activity, so they answer questions about snapshots you have created, pushed, fetched, or pulled.

List where snapshots live with snapdir locations

snapdir locations lists the directories and stores where snapshots have been recorded — your inventory of every place snapdir knows about:

snapdir locations

Use it to discover the --store URIs and paths you can then drill into with revisions. See snapdir locations.

List the snapshots at a location with snapdir revisions

snapdir revisions lists the snapshot IDs created on a single location — a store URI or an absolute path. Point it at one of the locations from the previous command:

snapdir revisions --location s3://my-bucket/snapshots

This is the catalog of IDs you can hand to snapdir pull, snapdir fetch, or snapdir checkout. See snapdir revisions.

Trace lineage with snapdir ancestors

snapdir ancestors lists a snapshot's ancestor IDs together with the locations that hold them. It answers "what came before this snapshot, and where can I get it?" — useful for auditing provenance or finding a known-good earlier state to restore:

snapdir ancestors --id "$id"

Combine it with revisions and locations to navigate from "I have this ID" to "here is its lineage and exactly which store still has each ancestor." See snapdir ancestors.

A typical investigation

# 1. Where has snapdir recorded snapshots?
snapdir locations

# 2. Which snapshot IDs exist at one of those locations?
snapdir revisions --location s3://my-bucket/snapshots

# 3. Trace one snapshot's lineage and where its ancestors live.
snapdir ancestors --id "$id"

# 4. Restore the one you want.
snapdir pull --store s3://my-bucket/snapshots --id "$id" ./restored

Where to go next