This improves the load time of most brew commands. For an example of
one of the simplest commands this speeds up:
Without Bootsnap:
```
$ hyperfine 'git checkout master; brew help' 'git checkout optimise_requires; brew help'
Benchmark 1: git checkout master; brew help
Time (mean ± σ): 525.0 ms ± 35.8 ms [User: 229.9 ms, System: 113.1 ms]
Range (min … max): 465.3 ms … 576.6 ms 10 runs
Benchmark 2: git checkout optimise_requires; brew help
Time (mean ± σ): 383.3 ms ± 25.1 ms [User: 133.0 ms, System: 72.1 ms]
Range (min … max): 353.0 ms … 443.6 ms 10 runs
Summary
git checkout optimise_requires; brew help ran
1.37 ± 0.13 times faster than git checkout master; brew help
```
With Bootsnap:
```
$ hyperfine 'git checkout master; brew help' 'git checkout optimise_requires; brew help'
Benchmark 1: git checkout master; brew help
Time (mean ± σ): 386.0 ms ± 30.9 ms [User: 130.2 ms, System: 93.8 ms]
Range (min … max): 359.5 ms … 469.3 ms 10 runs
Benchmark 2: git checkout optimise_requires; brew help
Time (mean ± σ): 330.2 ms ± 32.4 ms [User: 93.4 ms, System: 73.0 ms]
Range (min … max): 302.9 ms … 413.9 ms 10 runs
Summary
git checkout optimise_requires; brew help ran
1.17 ± 0.15 times faster than git checkout master; brew help
```
These tests cover both generating and loading formulae from the JSON
bundle. The tests are not comprehensive but they do provide a nice
sanity check that things are working as expected.
We'd like to reduce the size of the API JSON and to do that we are
going to remove unused and/or blank elements from the cask/formula
definition. This will reduce the amount of data that has to go
over the wire and make it easier to load this data into memory.
This was required previously by the `plist` gem and we were requiring
it indirectly. It got removed in v1.7.1 of that gem because it will
no longer be included in the standard library as of Ruby 3.4.
Since we're not currently running on Ruby 3.3 and 3.4 is not out yet,
we can punt on this for now but we'll need to figure out a better
alternative before upgrading to Ruby 3.4.
Related:
- https://github.com/patsplat/plist/pull/63
Download the previously stored tap migrations files for homebrew/core
and homebrew/cask from the formulae.brew.sh API.
This adds a much longer stale time (24 hours) to decide whether or not
the migrations files need downloaded from the API in Ruby land.
`brew update` will still update them every time.
Requires https://github.com/Homebrew/brew/pull/15628
Fixes https://github.com/Homebrew/brew/issues/14897
Instead of doing so literally whenever we query for a formula, Instead
do so only when we're in an auto-updateable command.
This better fits the existing behaviour while still updating when it's
most important to do so.
This sets the default and allows customising how often we try to
download files from the API.
This does not affect `brew update` as we want to always check every time
on an explicit call.
Rather than failing every time we fail to update (breaking most usage
while offline) instead only fail if we cannot obtain the JSON and we
don't have a valid local file we can use.
Also tweak the timeout and retry logic and values to make a bit more
sense in this context and not be so noisy when offline.
