- added clarity with error handling. added test to show issue.
- in manual testing, this fixes the issue and allows watch to run after rebuild
- added cleanup back in
- fixed issue where watch extnet rebuild test would start all containers listed in the fixture
Signed-off-by: kimdcottrell <me@kimdcottrell.com>
The `alpha watch` command current "attaches" to an already-running
Compose project, so it's necessary to run something like
`docker compose up --wait` first.
Now, we'll do the equivalent of an `up --build` before starting the
watch, so that we know the project is up-to-date and running.
Additionally, unlike an interactive `up`, the services are not stopped
when `watch` exits (e.g. via `Ctrl-C`). This prevents the need to start
from scratch each time the command is run - if some services are already
running and up-to-date, they can be used as-is. A `down` can always be
used to destroy everything, and we can consider introducing a flag like
`--down-on-exit` to `watch` or changing the default.
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
The uuid package in distribution was created as a utility for the distribution
project itself, to cut down external dependencies (see [1][1]).
For compose, this has the reverse effect, as it now brings all the dependencies
of the distribution module with it.
This patch switches to the uuid generation to crypto/rand to produce a random
id. I was considering using a different uuid implementation, or docker's
"stringid.GenerateRandomID", but all of those are doing more than needed,
so keep it simple.
Currently, this change has little effect, because compose also uses the
distribution module for other purposes, but the distribution project is
in the process of moving the "reference" package to a separate module,
in which case we don't want to depend on the distribution module only for
the uuid package.
[1]: 36e34a55ad
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This is a good place to start introducing (local) exclusivity
to Compose. Now, when `alpha watch` launches, it will check for
the existence of a PID file in the user XDG runtime directory,
and create one if the existing one is stale or does not exist.
If the PID file exists and is valid, an error is returned and
Compose exits.
A slight tweak to the experimental remote Git loader has been
made to use the XDG package for consistency.
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
Swap the default implementation now that batching is merged.
Keeping the `docker cp` based implementation around for the
moment, but it needs to be _explicitly_ disabled now by setting
`COMPOSE_EXPERIMENTAL_WATCH_TAR=0`.
After the next release, we should remove the `docker cp`
implementation entirely.
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
Adjust the debouncing logic so that it applies to all inbound file
events, regardless of whether they match a sync or rebuild rule.
When the batch is flushed out, if any event for the service is a
rebuild event, then the service is rebuilt and all sync events for
the batch are ignored. If _all_ events in the batch are sync events,
then a sync is triggered, passing the entire batch at once. This
provides a substantial performance win for the new `tar`-based
implementation, as it can efficiently transfer the changes in bulk.
Additionally, this helps with jitter, e.g. it's not uncommon for
there to be double-writes in quick succession to a file, so even if
there's not many files being modified at once, it can still prevent
some unnecessary transfers.
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
Fix forthcoming via https://github.com/compose-spec/compose-go/pull/436
which addresses some symlink limitations. These can
actually effect other platforms but are most common
on macOS because the test creates temporary directories,
which are symlinked on macOS.
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
Add an end-to-end test that covers the core watch functionality,
i.e. CRUD on files & directories.
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
Ulysses Souza
Guillaume Lours
kimdcottrell
Milas Bowman
Sebastiaan van Stijn