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brew/Library/Homebrew
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Issy Long 5310c5e730
Fix "undefined method 'name' for an instance of FormulaInstaller" 
- Because `name` is not a method on `FormulaInstaller`, instead
  `formula` shows the name.
- Fixes issue 20199.

Before:

```
$ brew install -n hello
Error: undefined method 'name' for an instance of FormulaInstaller
Warning: Removed Sorbet lines from backtrace!
Rerun with `--verbose` to see the original backtrace
/opt/homebrew/Library/Homebrew/install.rb:330:in 'Array#map'
/opt/homebrew/Library/Homebrew/install.rb:330:in 'Homebrew::Install.install_formulae'
```

After:

```
$ brew install -n hello
==> Would install 1 formula:
hello
```
2025-07-01 22:25:22 +01:00
..
.bundle
…
aliases
aliases: fix missing require with Ruby 3.4
2025-04-16 17:03:40 +01:00
api
cask: move some files to strict Sorbet sigil.
2025-06-17 14:56:10 +01:00
bundle
Merge pull request #20128 from Homebrew/some-bundle-files-werent-typed-at-all
2025-06-29 23:10:59 +00:00
cask
cask/installer: remove migration symlinks on uninstall
2025-06-26 10:37:52 -04:00
cli
cli/named_args: don't warn about old tokens overlapping.
2025-06-25 17:24:35 +01:00
cmake
…
cmd
Merge pull request #20128 from Homebrew/some-bundle-files-werent-typed-at-all
2025-06-29 23:10:59 +00:00
completions
…
data
spdx: update license data.
2025-06-25 00:18:16 +00:00
debrew
debrew: set typed: strict
2025-06-17 16:33:58 +01:00
dev-cmd
Merge pull request #20128 from Homebrew/some-bundle-files-werent-typed-at-all
2025-06-29 23:10:59 +00:00
extend
Merge pull request #20128 from Homebrew/some-bundle-files-werent-typed-at-all
2025-06-29 23:10:59 +00:00
formula-analytics
build(deps): bump urllib3 in /Library/Homebrew/formula-analytics
2025-06-19 05:26:06 +00:00
language
language/*: fix *_SHEBANG_REGEX anchors
2025-06-23 20:32:55 +08:00
livecheck
Bitbucket: update generated urls
2025-05-19 12:13:49 -04:00
manpages
parser: show related env var in switch description
2025-06-03 13:57:42 -04:00
os
Preliminary macOS 26 (Tahoe) support
2025-06-09 21:41:49 +01:00
requirements
requirements: set typed: strict
2025-06-17 16:34:59 +01:00
rubocops
Switch to using main as the default branch
2025-06-24 11:14:57 +01:00
services
services: try multiple domains when stopping
2025-05-02 06:19:53 +01:00
shims
compilers: add gcc-15
2025-04-23 10:09:45 +02:00
sorbet
Switch to using main as the default branch
2025-06-24 11:14:57 +01:00
standalone
standalone/init: cleanup respond_to? check
2025-05-02 01:40:13 +01:00
startup
Enable Bootsnap by default
2025-03-31 17:55:07 +01:00
test
github_runner_matrix: fix skipped runner creation
2025-07-01 15:07:24 -04:00
unpack_strategy
…
utils
utils/github/api: fix Sorbet types.
2025-06-17 14:59:46 +01:00
vendor
Merge pull request #19981 from Homebrew/dependabot/bundler/Library/Homebrew/ruby-lsp-0.23.21
2025-05-20 21:07:21 +00:00
version
…
yard
…
.rspec_parallel
…
.rubocop.yml
rubocop.yml: add autobump_constants.rb
2025-06-25 15:36:51 +02:00
.ruby-version
Portable Ruby 3.4.4
2025-05-14 17:13:58 -07:00
.simplecov
…
.yardopts
…
abstract_command.rb
…
api_hashable.rb
a*.rb: move to strict Sorbet sigil.
2025-06-17 08:18:33 +01:00
api.rb
a*.rb: move to strict Sorbet sigil.
2025-06-17 08:18:33 +01:00
ast_constants.rb
MacOSVersion: enable strong typing
2025-06-15 09:02:41 -04:00
attestation.rb
Link to Support Tiers in diagnostic/error messages
2025-04-01 11:35:27 +01:00
autobump_constants.rb
autobump_constants: split NO_AUTOBUMP_REASONS_LIST
2025-06-25 15:31:18 +02:00
bottle_specification.rb
…
bottle.rb
…
brew_irbrc
…
brew.rb
Link to Support Tiers in diagnostic/error messages
2025-04-01 11:35:27 +01:00
brew.sh
Switch to using main as the default branch
2025-06-24 11:14:57 +01:00
build_environment.rb
…
build_options.rb
…
build.rb
…
bump_version_parser.rb
…
bundle_version.rb
…
bundle.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
cachable.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
cache_store.rb
…
cask_dependent.rb
…
cask.rb
…
caveats.rb
Improve completions (and elisp) output in caveats
2025-06-06 17:09:28 +01:00
checksum.rb
…
cleaner.rb
…
cleanup.rb
Reset Bootsnap after installing gems
2025-03-27 03:37:17 +00:00
command_path.sh
…
commands.rb
…
compilers.rb
compilers: add gcc-15
2025-04-23 10:09:45 +02:00
completions.rb
fix: prevent Zsh crashes related to autocompletion
2025-04-22 22:02:38 +02:00
context.rb
…
cxxstdlib.rb
…
debrew.rb
debrew: migrate away from mutex_m
2025-04-15 23:02:00 +01:00
dependable.rb
…
dependencies_helpers.rb
…
dependencies_helpers.rbi
…
dependencies.rb
…
dependencies.rbi
Update another overly narrow return type
2025-06-29 11:30:06 -07:00
dependency_collector.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
dependency.rb
…
deprecate_disable.rb
deprecate!/disable!: remove non-typed replacement field
2025-04-21 21:13:25 +02:00
description_cache_store.rb
…
descriptions.rb
…
development_tools.rb
Fix DevelopmentTools::ld64_version on macOS
2025-06-21 21:13:38 -04:00
diagnostic.rb
Provide more leeway to file Tier 2/3 issues.
2025-06-27 15:27:26 +01:00
download_queue.rb
Switch to using main as the default branch
2025-06-24 11:14:57 +01:00
download_strategy.rb
download_strategy: Add logging when a cached download is being ignored
2025-06-25 08:32:02 +01:00
download_strategy.rbi
…
downloadable.rb
Cleanup Downloadable variables and types
2025-04-23 03:30:15 +01:00
env_config.rb
parser: show related env var in switch description
2025-06-03 13:57:42 -04:00
exceptions.rb
Link to Support Tiers in diagnostic/error messages
2025-04-01 11:35:27 +01:00
fetch.rb
…
formula_assertions.rb
…
formula_auditor.rb
Switch to using main as the default branch
2025-06-24 11:14:57 +01:00
formula_cellar_checks.rb
Remove alias generic_* definitions in favour of using super
2025-06-16 08:10:08 +00:00
formula_creator.rb
create: detect URL from latest release if it isn't archive
2025-06-26 15:07:51 +03:00
formula_free_port.rb
…
formula_info.rb
…
formula_installer.rb
Merge pull request #20033 from tyuwags/master
2025-06-26 10:52:46 +00:00
formula_name_cask_token_auditor.rb
…
formula_path.sh
…
formula_pin.rb
…
formula_support.rb
…
formula_versions.rb
…
formula.rb
Merge pull request #20033 from tyuwags/master
2025-06-26 10:52:46 +00:00
formulary.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
formulary.rbi
…
Gemfile
Portable Ruby 3.4.3
2025-04-22 11:50:08 -07:00
Gemfile.lock
Merge pull request #19981 from Homebrew/dependabot/bundler/Library/Homebrew/ruby-lsp-0.23.21
2025-05-20 21:07:21 +00:00
git_repository.rb
Homebrew 4.5 deprecations/disables/removals
2025-04-22 17:15:23 +01:00
github_packages.rb
…
github_releases.rb
…
github_runner_matrix.rb
github_runner_matrix: fix skipped runner creation
2025-07-01 15:07:24 -04:00
github_runner.rb
…
global.rb
Add HOMEBREW_MACOS_NEWEST_SUPPORTED env var
2025-06-14 18:45:25 -04:00
hardware.rb
Remove alias generic_* definitions in favour of using super
2025-06-16 08:10:08 +00:00
head_software_spec.rb
Bump some files to Sorbet typed: strict
2025-04-27 22:45:44 +01:00
help.rb
…
help.sh
…
ignorable.rb
…
ignorable.rbi
…
install_renamed.rb
…
install.rb
Fix "undefined method 'name' for an instance of FormulaInstaller"
2025-07-01 22:25:22 +01:00
installed_dependents.rb
…
items.sh
…
keg_relocate.rb
Remove alias generic_* definitions in favour of using super
2025-06-16 08:10:08 +00:00
keg.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
keg.rbi
…
lazy_object.rb
lazy_object: fix __getobj__ signature
2025-05-02 01:26:58 +01:00
linkage_cache_store.rb
…
linkage_checker.rb
Remove alias generic_* definitions in favour of using super
2025-06-16 08:10:08 +00:00
linux_runner_spec.rb
…
linuxbrew-core-migration.rb
…
list.sh
…
livecheck.rb
Make os available in cask livecheck blocks
2025-04-04 09:17:32 -04:00
locale.rb
…
lock_file.rb
…
macos_runner_spec.rb
…
macos_version.rb
MacOSVersion: enable strong typing
2025-06-15 09:02:41 -04:00
manpages.rb
…
mcp_server.rb
mcp_server: fix EOF handling.
2025-06-23 16:50:39 +01:00
messages.rb
Improve completions (and elisp) output in caveats
2025-06-06 17:09:28 +01:00
metafiles.rb
…
migrator.rb
…
missing_formula.rb
Remove alias generic_* definitions in favour of using super
2025-06-16 08:10:08 +00:00
mktemp.rb
mktemp: drop include FileUtils
2025-04-16 16:22:36 +01:00
official_taps.rb
official_taps: deprecate homebrew-linux-fonts.
2025-04-28 08:36:04 +01:00
on_system.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
on_system.rbi
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
options.rb
…
options.rbi
…
os.rb
Link to Support Tiers in diagnostic/error messages
2025-04-01 11:35:27 +01:00
patch.rb
…
PATH.rb
Refactor exec.rb type fixes
2025-06-29 09:02:24 -07:00
pkg_version.rb
…
pkg_version.rbi
…
postinstall.rb
…
pour_bottle_check.rb
…
readall.rb
…
readline_nonblock.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
README.md
…
reinstall.rb
comment
2025-06-20 12:59:15 -04:00
requirement.rb
…
requirements.rb
…
resource_auditor.rb
audits: quote and reword problem description text
2025-05-30 23:49:26 -04:00
resource.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
retryable_download.rb
Cleanup Downloadable variables and types
2025-04-23 03:30:15 +01:00
rubocops.rb
…
sandbox.rb
Remove more monkey-patching in extend/os
2025-06-21 21:34:20 -04:00
sbom.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
search.rb
…
service.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
settings.rb
…
shell_command.rb
…
simulate_system.rb
github_runner_matrix: fix skipped runner creation
2025-07-01 15:07:24 -04:00
software_spec.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
source_location.rb
…
standalone.rb
…
startup.rb
Enable Bootsnap by default
2025-03-31 17:55:07 +01:00
style.rb
fix new offenses
2025-03-27 03:38:09 +00:00
system_command.rb
Cleanup extend/ directory usage.
2025-06-09 19:06:16 +01:00
system_config.rb
a*.rb: move to strict Sorbet sigil.
2025-06-17 08:18:33 +01:00
tab.rb
tab, cask/tab: add more Sorbet types and signatures.
2025-06-24 12:06:55 +01:00
tap_auditor.rb
tap_auditor: do not audit autobump.txt in official taps
2025-04-29 22:38:14 +02:00
tap_constants.rb
…
tap.rb
tap: rely on new autobump list
2025-06-18 16:16:08 +02:00
tap.sh
…
test_runner_formula.rb
github_runner_matrix: fix skipped runner creation
2025-07-01 15:07:24 -04:00
test.rb
…
uninstall.rb
uninstall: style suggestions
2025-05-21 17:54:21 +02:00
unlink.rb
…
unpack_strategy.rb
…
unversioned_cask_checker.rb
…
upgrade.rb
removing debugging symbol
2025-06-26 19:13:02 -04:00
url.rb
…
utils.rb
…
version.rb
Phase out using cgi library
2025-05-13 01:33:14 +01:00
warnings.rb
…

README.md

Homebrew Ruby API

This is the API for Homebrew.

The main class you should look at is the {Formula} class (and classes linked from there). That's the class that's used to create Homebrew formulae (i.e. package descriptions). Assume anything else you stumble upon is private.

You may also find the Formula Cookbook and Ruby Style Guide helpful in creating formulae.

Good luck!