Install size

[tyuwags]

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resolve #18373

As discussed in the issue, these changes add the --ask option and the HOMEBREW_ASK environment variable to display the packages and dependencies that will be installed, along with their sizes, and prompt the user for input.

[MikeMcQuaid]

Thanks @tyuwags, great work so far!

[MikeMcQuaid]

Great work so far, I think we're almost there!

[MikeMcQuaid]

Great work here @tyuwags! Thanks for your patience. Tried it out locally and worked as expected. You rock!

[tyuwags]

Thank you for your help too !
If you still see any incoherence, don't hesitate to tell me

[osalbahr]

Thank you for adding this feature!

nit: is there a reason there is a "yes" but not a "no"? (I tried it locally and typing "no" aborts, just checking before making a PR)

brew/Library/Homebrew/install.rb

Line 384 in 6278454

ohai "Do you want to proceed with the installation? [Y/y/yes/N/n]"

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Edit: created the PR

[tyuwags]

No, it was mainly an oversight, thank you for adding it