Signed-off-by: Seongmin Lee <git@boltless.me>

`sh.tangled.pipeline` events are now completely generated & streamed
from spindle

Signed-off-by: Seongmin Lee <git@boltless.me>

spindle will emit `sh.tangled.pipeline` event on:
- `sh.tangled.git.refUpdate` events from knot stream
- live create/update events of `sh.tangled.repo.pull` records

Signed-off-by: Seongmin Lee <git@boltless.me>

Spindle will sync git repo when new repo is registered

Spindle will listen to `sh.tangled.git.refUpdate` event from knot
stream and sync its local git repo instead. Spindle's git repo will
sparse-checkout only `/.tangled/workflows` directory.

Spindle now requires git version >=2.49 for `--revision` flag in `git
clone` command.

References:
- <https://stackoverflow.com/q/47541033/13150270>
- <https://stackoverflow.com/q/600079/13150270>

Signed-off-by: Seongmin Lee <git@boltless.me>

This single persistent directory can be used for storing general spindle
data like db, motd file and upcoming sparse-clone git repos.

db path will be `${DATA_DIR}/spindle.db`

Signed-off-by: Seongmin Lee <git@boltless.me>

spindle-tap will collect/stream record events from:
- users dynamically added by spindle (spindle members | collaborators of
repos using spindle)
- any users with `sh.tangled.repo.pull` collection

It might be bit inefficient considering it will also stream repo
creation events from PR authors due to second rule, but at least we now
have backfill logic and Sync 1.1 based syncing.

This inefficiency can be fixed later by modifying upstream tap cli or
embedding tap into spindle.

```
+--------- all tangled users --------+
| |
| +-- users known to spindle-tap --+ |
| | (PR author / manually added) | |
| | | |
| | +----------------------------+ | |
| | | users known to spindle | | |
| | | (members / collaborators) | | |
| | +----------------------------+ | |
| +--------------------------------+ |
+------------------------------------+
```

Close: <https://tangled.org/tangled.org/core/issues/341>

Signed-off-by: Seongmin Lee <git@boltless.me>

This new db migration won't migrate existing records in repos table.
Instead, it will simply rename the legacy table to `repos_old` and
create a new one with same name.

repo backfill will be done with tap

Signed-off-by: Seongmin Lee <git@boltless.me>

create new one if it's missing

Signed-off-by: Seongmin Lee <git@boltless.me>

Signed-off-by: Seongmin Lee <git@boltless.me>

This commit includes bare minimum tap client to use tap from spindle.

Signed-off-by: Seongmin Lee <git@boltless.me>

This commit won't work without following spindle rewrite to use tap and
introduce backfill because repos table is empty yet.

Signed-off-by: Seongmin Lee <git@boltless.me>

1. Use repo AT-URI as identifier.
2. Use `dom` field rather than `obj` to filter by repository. So now
it's "user with role A in repo B can do action D to field C" where
`A,B,C,D` are `sub,dom,obj,act`.
3. Manage app-logic rules in embedded csv file which won't be saved in
db and load to memory on start. This makes app's global rbac rule
change easier as we just need to edit the csv file.

Many permission check methods are missing, but should be enough to test
this new RBAC enforcer package in spindle.

Related issue: <https://tangled.org/tangled.org/core/issues/282>

Signed-off-by: Seongmin Lee <git@boltless.me>

- did-method-plc
- bluesky-jetstream
- bluesky-relay
- tap

Signed-off-by: Seongmin Lee <git@boltless.me>

we already have picHandle and picHandle link, this change adds pic and
picLink.

Signed-off-by: oppiliappan <me@oppi.li>

Signed-off-by: oppiliappan <me@oppi.li>

Signed-off-by: oppiliappan <me@oppi.li>

this is no longer necessary, we use BaseUrl where scheme is required.

Signed-off-by: oppiliappan <me@oppi.li>

Signed-off-by: Seongmin Lee <git@boltless.me>

Implemented tangled link extension. This can be extended for other link
types like issue/pull references in future.

The `tangled.org` host is hardcoded right now.

Close: <https://tangled.org/tangled.org/core/issues/382>

Signed-off-by: Seongmin Lee <git@boltless.me>

/pull/ID is redirected to /pull/ID/round/N. this makes links to lines in
a diff stable.

Signed-off-by: oppiliappan <me@oppi.li>