RVM shebang in a ruby script
mouse 1023 · person cloud · link
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Last update
2024-09-30
2024
09-30
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run script with the default ruby version

  • option A:
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#!/usr/bin/env -S ${HOME}/.rvm/bin/rvm-shebang-ruby
puts RUBY_VERSION
  • option B:
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#!/usr/bin/env -S ${HOME}/.rvm/bin/rvm default do ruby
puts RUBY_VERSION

run script with desired ruby version

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#!/usr/bin/env -S ${HOME}/.rvm/bin/rvm ruby-3.0.0 do ruby
puts RUBY_VERSION

fix relative path script calls

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./apps/myscript.rb   # works
~/apps/myscript.rb   # works
apps/myscript.rb     # hangs!

edit ~/.rvm/bin/rvm-shebang-ruby and modify the last case with *rvm-shebang-ruby:

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#rvm_promptless=1 rvm rvmrc load "$(dirname "$(which "$1")")" > /dev/null 2>&1
folder="$(dirname "$(which "$1")")"
[ "$folder" = "." ] && folder=$PWD
folder="$(realpath -s "$folder")"
rvm_promptless=1 rvm rvmrc load "$folder" > /dev/null 2>&1