07d571bebc
When running brew commands and interpreting the output, e.g. running `brew livecheck --json`, it's necessary to stop other programs Homebrew happens to execute from writing logging output to stdout. Most programs don't do this, but `bundle install` does seem to. To reproduce the issue you can run: ```shell git -C "$(brew --prefix)" clean -ffdx Library/Homebrew/vendor stdout=$(HOMEBREW_FORCE_VENDOR_RUBY=1 brew livecheck --newer-only --json --cask $(brew --repo homebrew/cask)/Casks/grid.rb) echo "^^^ was stderr, >>> is stdout: $stdout" ``` If you run it without this change it will print a bunch of output like this to the stdout before printing out the livecheck JSON output: ```text Using bundler 1.17.3 Fetching byebug 11.1.3 Fetching coderay 1.1.3 Installing byebug 11.1.3 with native extensions Installing coderay 1.1.3 Fetching colorize 0.8.1 Installing colorize 0.8.1 [ # Contents of the JSON block. ] ``` With this change the stdout from `bundle install` will be redirected to brew's stderr, meaning only the JSON goes to stdout, and the rest goes to stderr.
Library
This directory contains all the code run by the official brew command in Homebrew and all formulae (package descriptions) in taps (repositories containing formulae) in Taps subdirectories.