mirror of
https://seed.radicle.dev/rad:z3gqcJUoA1n9HaHKufZs5FCSGazv5.git
synced 2026-11-13 23:10:46 +08:00
Fintan Halpenny
82a53e3a53
The fetch V2 improvements introduced a `UserInfo` type that is used to set the Git config's name and email when cloning a repository. This `UserInfo` can also be used when creating a new `Repository`. The `Storage` type now takes a `UserInfo` so that it can be passed to `Repository::create`, for creating a new repository. For testing, this requires adding a new `fixtures::user` so that testing `Storage` instances can be easily constructed. It also means that the `radicle-cli` tests all changed with new SHAs since the name and email are used as part of the hashing input. N.b. the order of the timelines while testing the identity cob changed. It's not clear why that is. Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com> X-Clacks-Overhead: GNU Terry Pratchett
85 lines
3.0 KiB
Markdown
85 lines
3.0 KiB
Markdown
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Let's see what happens if we try to push a head which diverges from the
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canonical head.
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First we add a second delegate, Bob, to our repo:
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``` ~alice
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$ rad id update --title "Add Bob" --description "" --delegate did:key:z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk --repo rad:z42hL2jL4XNk6K8oHQaSWfMgCL7ji -q
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c036c0d89ce26aef3ad7da402157dba16b5163b4
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$ rad remote add did:key:z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk
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✓ Remote bob@z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk added
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✓ Remote-tracking branch bob@z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk/master created for z6Mkt67…v4N1tRk
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```
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Then, as Bob, we commit some code on top of the canonical head:
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``` ~bob
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$ rad sync --fetch
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✓ Fetching rad:z42hL2jL4XNk6K8oHQaSWfMgCL7ji from z6MknSL…StBU8Vi..
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✓ Fetched repository from 1 seed(s)
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$ rad inspect --delegates
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did:key:z6MknSLrJoTcukLrE435hVNQT4JUhbvWLX4kUzqkEStBU8Vi (alice)
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did:key:z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk (bob)
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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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As Alice, we fetch that code, but commit on top of our own master, which is no
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longer canonical, since Bob pushed a more recent commit, and the threshold is 1:
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``` ~alice
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$ git fetch bob@z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk
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$ git branch -arv
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bob@z6Mkt67GdsW7715MEfRuP4pSZxJRJh6kj6Y48WRqVv4N1tRk/master 319a7dc Third commit
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rad/master f2de534 Second commit
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$ git commit -m "Third commit by Alice" --allow-empty -q
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```
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If we try to push now, we get an error with a hint, telling us that we need to
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integrate Bob's changes before pushing ours:
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``` ~alice (stderr) (fail)
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$ git push rad
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hint: you are attempting to push a commit that would cause your upstream to diverge from the canonical head
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hint: to integrate the remote changes, run `git pull --rebase` and try again
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error: refusing to update branch to commit that is not a descendant of canonical head
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error: failed to push some refs to 'rad://z42hL2jL4XNk6K8oHQaSWfMgCL7ji/z6MknSLrJoTcukLrE435hVNQT4JUhbvWLX4kUzqkEStBU8Vi'
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```
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We do that, and notice that we're now able to push our code:
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``` ~alice
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$ git pull --rebase
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$ git log --oneline
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f6cff86 Third commit by Alice
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319a7dc Third commit
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f2de534 Second commit
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08c788d Initial commit
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```
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``` ~alice RAD_SOCKET=/dev/null (stderr)
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$ git push rad
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To rad://z42hL2jL4XNk6K8oHQaSWfMgCL7ji/z6MknSLrJoTcukLrE435hVNQT4JUhbvWLX4kUzqkEStBU8Vi
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f2de534..f6cff86 master -> master
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```
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One thing of note is that we can't push an older commit either, by default:
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``` ~alice
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$ git reset --hard HEAD^ -q
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```
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``` ~alice (fail)
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$ git push -f
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```
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We have to use the `allow.rollback` option:
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``` ~alice (stderr)
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$ git push -f -o allow.rollback
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To rad://z42hL2jL4XNk6K8oHQaSWfMgCL7ji/z6MknSLrJoTcukLrE435hVNQT4JUhbvWLX4kUzqkEStBU8Vi
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+ f6cff86...319a7dc master -> master (forced update)
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```
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