Download progress reporting

[robert-at-pieces]

Output of brew config

HOMEBREW_VERSION: 4.4.22
ORIGIN: https://github.com/Homebrew/brew
HEAD: 89d1d6b8f4adb0b8f6678912f648dca2475b7c7c
Last commit: 2 days ago
Branch: stable
Core tap JSON: 25 Feb 19:45 UTC
Core cask tap JSON: 26 Feb 16:24 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 14
Homebrew Ruby: 3.3.7 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.3.7/bin/ruby
CPU: 14-core 64-bit arm_brava
Clang: 16.0.0 build 1600
Git: 2.39.5 => /Users/robvrooman/Desktop/DevelopmentTools/xcode_16_1/Xcode.app/Contents/Developer/usr/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 15.3.1-arm64
CLT: 16.2.0.0.1.1733547573
Xcode: 16.1 => /Users/robvrooman/Desktop/DevelopmentTools/xcode_16_1/Xcode.app/Contents/Developer
Rosetta 2: false

Output of brew doctor

Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: The following formulae have the same name as core formulae:
  cirruslabs/cli/sshpass
  cirruslabs/cli/tart
Their taps are in use, so you must use these full names throughout Homebrew.

Warning: /usr/bin occurs before /opt/homebrew/bin in your PATH.
This means that system-provided programs will be used instead of those
provided by Homebrew. Consider setting your PATH so that
/opt/homebrew/bin occurs before /usr/bin. Here is a one-liner:
  echo 'export PATH="/opt/homebrew/bin:$PATH"' >> ~/.zshrc

The following tools exist at both paths:
  openssl

Description of issue

I am attempting to write a wrapper around Homebrew in the Dart language and simply executing it through Process.start.

I noticed that the curl command had the '--silent' flag passed to it when running brew install without the '--quiet' flag and with the '--verbose' flag.

The silent flag is not passed to curl when running the same command through the terminal.

Here is the command I used

brew install --cask --verbose pieces-os

I believe this is happening because of this line in the homebrew source:
https://github.com/Homebrew/brew/blob/0c2c76351c62329cd368620519c09f529e57134e/Library/Homebrew/utils/curl.rb#L133C33-L133C39

If I understand this correctly, the silent flag is automatically added if stdout is not attached to a terminal session. However, this makes it so I cannot listen to stdout or stderr for curl download progress and forward the percentage to my application.

Is there a workaround for this or did I miss something?