62 lines
2.0 KiB
Markdown
62 lines
2.0 KiB
Markdown
In this scenario, we will explore being able to rollback to a previous commit.
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First we add a second delegate, Bob, to our repo. We also change the threshold
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to 2:
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``` ~alice
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$ rad id update --title "Add Bob" --delegate did:key:z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk --repo rad:z42hL2jL4XNk6K8oHQaSWfMgCL7ji --threshold 2 -q
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069e7d58faa9a7473d27f5510d676af33282796f
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```
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Bob then syncs these changes and adds a new commit:
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``` ~bob
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$ rad sync --fetch
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Fetching rad:z42hL2jL4XNk6K8oHQaSWfMgCL7ji from the network, found 1 potential seed(s).
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✓ Target met: 1 seed(s)
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🌱 Fetched from z6MknSL…StBU8Vi
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$ git commit -m "Third commit" --allow-empty -q
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$ git push rad
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$ git branch -arv
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alice@z6MknSLrJoTcukLrE435hVNQT4JUhbvWLX4kUzqkEStBU8Vi/master f2de534 Second commit
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rad/master 319a7dc Third commit
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```
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Alice merges these changes and pushes them, which updates the canonical head:
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``` ~alice
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$ rad remote add did:key:z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk --name bob --fetch --no-sync
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✓ Remote bob added
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✓ Remote-tracking branch bob/master created for z6Mkt67…v4N1tRk
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$ git merge bob/master
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Updating f2de534..319a7dc
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Fast-forward
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```
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``` ~alice (stderr)
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$ git push rad
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✓ Canonical head updated to 319a7dc3b195368ded4b099f8c90bbb80addccd3
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✓ Synced with 1 seed(s)
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To rad://z42hL2jL4XNk6K8oHQaSWfMgCL7ji/z6MknSLrJoTcukLrE435hVNQT4JUhbvWLX4kUzqkEStBU8Vi
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f2de534..319a7dc master -> master
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```
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Alice decides that she changes her mind about these changes and rolls back to
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the previous commit:
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``` ~alice
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$ git reset --hard f2de534
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HEAD is now at f2de534 Second commit
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```
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Since the canonical head is still decidable from this commit she is allowed to
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push and the new canonical head becomes the previous commit again:
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``` ~alice (stderr)
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$ git push rad -f
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✓ Canonical head updated to f2de534b5e81d7c6e2dcaf58c3dd91573c0a0354
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✓ Synced with 1 seed(s)
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To rad://z42hL2jL4XNk6K8oHQaSWfMgCL7ji/z6MknSLrJoTcukLrE435hVNQT4JUhbvWLX4kUzqkEStBU8Vi
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+ 319a7dc...f2de534 master -> master (forced update)
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```
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