Fix Homebrew formula to use HEAD and update docs

[hirotaka]

What's the problem?

When following the README instructions and running brew tap tobi/try, I got this error:

$ brew tap tobi/try
Error: Failure while executing; git clone https://github.com/tobi/homebrew-try /opt/homebrew/Library/Taps/tobi/homebrew-try --origin=origin --template= --config core.fsmonitor=false exited with 128.

This happens because there's no homebrew-try repository. The repo is named try, which doesn't follow Homebrew's naming convention (homebrew-*).

Then I tried brew install try directly instead, I got a SHA256 mismatch error:

$ brew install try
==> Fetching downloads for: try
==> Fetching dependencies for tobi/try/try: openssl@3 and ruby
==> Downloading https://ghcr.io/v2/homebrew/core/openssl/3/manifests/3.6.0
################################################################################################################################################################################## 100.0%
==> Fetching openssl@3
==> Downloading https://ghcr.io/v2/homebrew/core/openssl/3/blobs/sha256:9a8fa2ae1ef3424b116d7e6422d979e0290f4affdef072b1592e4535d2617d92
################################################################################################################################################################################## 100.0%
==> Downloading https://ghcr.io/v2/homebrew/core/ruby/manifests/3.4.6
################################################################################################################################################################################## 100.0%
==> Fetching ruby
==> Downloading https://ghcr.io/v2/homebrew/core/ruby/blobs/sha256:8db26d72de0d97182fa05e1cc48f2e86ab03c040831f2087705fc94eb0d067a0
################################################################################################################################################################################## 100.0%
==> Fetching tobi/try/try
==> Downloading https://github.com/tobi/try/archive/refs/heads/main.tar.gz
==> Downloading from https://codeload.github.com/tobi/try/tar.gz/refs/heads/main
#=#=-  #      #
Error: try: SHA-256 mismatch
Expected: dd3753f38b5c35597c8c2528a19efd7e4289bbbe977d18e2e299a2a57b393a8e
  Actual: 151778fdd07adac23fb021d2d84bd0756e0d626a97498503da24413bfdd72c28
    File: /Users/hirotaka/Library/Caches/Homebrew/downloads/7fef3f3e550762c030552960944b4df9886ae8802c0860c1459dcf5b45ed904a--try-main.tar.gz
To retry an incomplete download, remove the file above.

This is because the formula uses an archive URL for the main branch (archive/refs/heads/main.tar.gz), so the hash changes every time main is updated.

How this fixes it

1. Formula/try.rb: Switch to using head

   • Removed url and sha256 (these were causing the mismatch)
   • Removed version "main" (invalid version string)
   • Added head to reference the main branch directly

2. README.md: Updated with correct installation instructions

   • Fixed to use two-argument brew tap command (explains why full URL is needed)

How to install now

brew tap tobi/try https://github.com/tobi/try
brew install try

I hope it should work now!

[saiqulhaq]

I tried your GitHub branch and installed the formula locally
I got this error:

Error: invalid attribute for formula 'xxx/try/try': version (nil)

Final code that works:

class Try < Formula
  desc "Fresh directories for every vibe - lightweight experiments for people with ADHD"
  homepage "https://github.com/hirotaka/try"
  head "https://github.com/hirotaka/try.git", branch: "fix-homebrew-formula"
  url "https://github.com/tobi/try/archive/refs/heads/main.tar.gz"
  version "main"

  depends_on "ruby"

  def install
    bin.install "try.rb" => "try"
  end

  def caveats
    <<~EOS
      To set up try with your shell, add one of the following to your shell configuration:

      For bash/zsh:
        eval "$(try init ~/src/tries)"

      For fish:
        eval "(try init ~/src/tries | string collect)"

      You can change ~/src/tries to any directory where you want your experiments stored.
    EOS
  end

  test do
    system "#{bin}/try", "--help"
  end
end

[thiagowfx]

brew tap tobi/try https://github.com/tobi/try is indeed necessary, otherwise brew attempts to clone https://github.com/tobi/homebrew-try which does not exist.

[buritica]

Seems like there is also an issue with the checksum

Error: Formula reports different checksum: 151778fdd07adac23fb021d2d84bd0756e0d626a97498503da24413bfdd72c28

==> Tapping tobi/try
Cloning into '/opt/homebrew/Library/Taps/tobi/homebrew-try'...
remote: Enumerating objects: 383, done.
remote: Counting objects: 100% (240/240), done.
remote: Compressing objects: 100% (114/114), done.
remote: Total 383 (delta 169), reused 168 (delta 124), pack-reused 143 (from 1)
Receiving objects: 100% (383/383), 276.50 KiB | 1.54 MiB/s, done.
Resolving deltas: 100% (224/224), done.
Tapped 1 formula (53 files, 619.7KB).
💀 🏡  [4:35:30] buritica:src$ s
💀 🏡  [4:35:34] buritica:src $ brew install try
==> Fetching downloads for: try
✔︎ Bottle Manifest libyaml (0.2.5)                                                                                                                              [Downloaded   14.5KB/ 14.5KB]
✔︎ Bottle libyaml (0.2.5)                                                                                                                                       [Downloaded  110.8KB/110.8KB]
✔︎ Bottle Manifest ca-certificates (2025-12-02)                                                                                                                 [Downloaded    2.0KB/  2.0KB]
✔︎ Bottle ca-certificates (2025-12-02)                                                                                                                          [Downloaded  131.8KB/131.8KB]
✔︎ Bottle Manifest ruby (3.4.7)                                                                                                                                 [Downloaded   16.1KB/ 16.1KB]
✔︎ Bottle ruby (3.4.7)                                                                                                                                          [Downloaded   16.1MB/ 16.1MB]
✘ Formula try (main)                                                                                                                                           [Verifying   165.5KB/  0.0 B]
Error: Formula reports different checksum:  151778fdd07adac23fb021d2d84bd0756e0d626a97498503da24413bfdd72c28
       SHA-256 checksum of downloaded file: a74e17d0c4ed29998d2a07e86872409b9e04eadc15ddb4e2ef1b7731648ba588