Let's acknowledge everyone's contributions by replacing "Google LLC"
in the copyright header by "The Jujutsu Authors". If I understand
correctly, it won't have any legal effect, but maybe it still helps
reduce concerns from contributors (though I haven't heard any
concerns).
Google employees can read about Google's policy at
go/releasing/contributions#copyright.
We currently get the hostname and username from the `whoami` crate. We
do that in lib crate, without giving the caller a way to override
them. That seems wrong since it might be used in a server and
performing operations on behalf of some other user. This commit makes
the hostname and username configurable, so the calling crate can pass
them in. If they have not been passed in, we still default to the
values from the `whoami` crate.
These calls often appear in expressions long enough that not having to
qualify it means that we can sometimes avoid wrapping a line. I
noticed because IntelliJ told me that `test_git.rs` had some
unnecessary qualificiations (the function was already imported there).
The `testutils` module should ideally not be part of the library
dependencies. Since they're used by the integration tests (and the CLI
tests), we need to move them to a separate crate to achieve that.
This changes `RepoLoader` to take a map of functions that load a
specific type of backend, keyed by the backend type. The backend type
is read from `.jj/repo/store/backend`.
In many of these places, we don't need an owned value, so using a
reference means we don't force the caller to clone the value. I really
doubt it will have any noticeable impact on performance (I think these
are all once-per-repo paths); it's just a little simpler this way.
We don't even have any settings that affect the repo, so there's no
point in passing the settings. I think this was a leftover from before
we separated out the "workspace" concept; now we no longer create a
working-copy commit when we initialize a repo (we do that when we
attach the workspace).
Most tests need a repo but don't need a working copy. Let's have a
function for setting up a test repo. But first, let's free up the name
`init_repo()` by renaming it to `init_workspace()` (which is also more
accurate).
I'm about to change `ReadonlyRepo::load()` to take the path to the
`.jj/` directory, so this patch prepares for that. It already works
because `ReadonlyRepo::load()` will search up the directory tree for
the `.jj/` entry.
I thought I had looked for this case and cleaned up all the places
when I made `Transaction::commit()` return a new `ReadonlyRepo`. I
must have forgotten to do that, because there we tons of places to
clean up left.
I've wanted the API to look like this for a while. It seems like a
good API to me. It means that the caller won't have to reload the repo
after committing. The cost seems relatively small. It involves copying
potentially a lot of data in memory (at least the View object), but it
shouldn't involve reading from disk or any other processing. To reduce
the amount of data to copy, it may be worth switching to persistent
data types. I've also wanted to do that for the copying we do when
start a transaction.
I couldn't measure any slowdown caused by this change.
It's sometimes useful to create a `RepoLoader` given an existing
`ReadonlyRepo`. We already do that in `ReadonlyRepo::reload()`. This
patch repurposes `ReadonlyRepo::reload()` for that.
The only way to load the repo at a current operation (as with
`--at-op`) is currently to first load it at the head operation and
then call `reload()` on the repo. This patch makes it so we can load
the repo directly at the requested operation.
This commits makes it so that running commands outside a repo results
in an error message instead of a panic.
We still don't look for a `.jj/` directory in ancestors of the current
directory.
