`exportloopref` - detects captures of loop variable without
re-assignment
NOTE: There can be false negatives with this linter to avoid being
overly strict and annoying!
Also upgraded `golangci-lint` to latest (v1.43.0 published 2021-11-03).
I've been running the test suite (`./internal/engine` in particular)
with `-count X` a lot recently to catch timing-related test failures.
After running enough times, the tests start failing due to too many
open files, so I did an audit and found a few places where files or
readers weren't always being closed.
* lint: add make lintfix and run it
Fixes all errors like:
```
File is not `goimports`-ed with -local github.com/tilt-dev/tilt (goimports)
```
* git: change to use TrimSuffix
* build: remove unnecessary cast
`WalkDir` is new in Go 1.16 and avoids calling `os.Lstat` on
every visited file and directory. In most cases, we don't need
that info, so this will help reduce I/O when listing files,
which can be helpful for particularly big monorepos.
Unused code linter isn't particularly smart about platform build
tags, so since this func is only used by the "naive" (non-macOS)
file watcher, it needs to live with that or it gets flagged as
dead code when linting on macOS.
In most places in Tilt, we try to use absolute paths everywhere.
So this makes things more consistent with the rest of Tilt, and lets us be
a bit more flexible in how we handle subdirs and parent dirs in ignores.
Fixes https://github.com/tilt-dev/tilt/issues/3740
Here's our new watch strategy on Darwin in a nutshell:
1. Create an fsevents stream for events "since" the last event ID that
we saw globally.
2. Add a path that we want to watch
3. Add that path to a map of paths that we're watching _directly_.
4. Restart the event stream to pick up the new path.
5. Ignore all events for all watches until we've seen a `HistoryDone`
event.
6. Ignore the first `ItemCreated` event for paths we're watching that
are also directories
7. Otherwise, forward along all events.