brew reinstall commands

generate-hombrew-install-commands.rb

brews = []
out = IO.popen("brew list", "r") do |io|
  brews = io.read.split "\n"
end

def parse(brew, brew_info)
  in_options = false
  print "brew reinstall -v #{brew} "
  brew_info.split("\n").each do |m|
    #puts m.inspect
    if in_options
      m.scan(/(--[a-zA-Z-]+)/).each do |x|
        print x[0] + " "
      end
      #puts matchdata.inspect
      in_options = false
    end
    if /\*$/.match m
      in_options = true
    end
  end
  puts
end

brews.each do |brew|
  #puts "brew info #{brew}"
  IO.popen("brew info #{brew}", "r") do |info|
    parse(brew, info.read)
  end
end

Extra thanks to @stepheneb for the improvements!

I am getting warnings like Warning: bash-completion-1.3 already installed and no work is actually getting done.

FYI, referred here from https://github.com/mxcl/homebrew/wiki/C++-Standard-Libraries

i think replacing the install -v commands with reinstall commands does what is needed coming from https://github.com/mxcl/homebrew/wiki/C++-Standard-Libraries

Indeed! I replaced install with reinstall on line 8 and can confirm it at least does something now. So far one or two things failed to re-compile, but I'm not sure that's related.

After changing install -v to reinstall

I fired this up λ ~ ruby generate-hombrew-install-commands.rb > brew.sh && bash ./brew.sh

Good idea, I've updated it to use the reinstall command.

I'm getting this error from running ruby genereate-hombrew-install-commands.rb:

generate-hombrew-install-commands.rb:9:in `split': invalid byte sequence in US-ASCII (ArgumentError)
    from generate-hombrew-install-commands.rb:9:in `parse'
    from generate-hombrew-install-commands.rb:28:in `block (2 levels) in <main>'
    from generate-hombrew-install-commands.rb:27:in `popen'
    from generate-hombrew-install-commands.rb:27:in `block in <main>'
    from generate-hombrew-install-commands.rb:25:in `each'
    from generate-hombrew-install-commands.rb:25:in `<main>'

This is an error with parsing utf8 symbols. You can force to use other encoding (for instance cp1252) in line 27:

IO.popen("brew info #{brew}", "r:cp1252") do |info|

I don't speak ruby so maybe this is not the best solution but it works.

Doesn't this script simply reinstall all installed packages (preserving options)?

I found a link to this script on the wiki (https://github.com/Homebrew/homebrew/wiki/C++-Standard-Libraries) which claims that it only reinstalls root packages, whatever that means:

@onewheelskyward created a Ruby script for displaying on stdout the brew install commands (along with any options used when they were original installed) to re-install all the packages which are root packages generate-hombrew-install-commands.rb.

However, brew list does list all installed formulas (according to man brew), and AFAIK each listed formula is also listed in the output.

I had a problem with incompatible with the standard library, libstd c++. To fix this, found the incompatible formulary, uninstall it, and reinstall it. Then go back to the formulary that has the install error and resintall it. Keep doing this until there is no error.

Error

Error: gdal dependency proj was built with the following
C++ standard library: libstdc++ (from clang)

Fix

$ brew reinstall proj

$ brew install gdal

Not familiar with much of brew and ruby, so there could be a more simpler and easy way. Hope this helps.