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add an abort: keyword, which lets you abort on failure - #141

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sampersand:swesterman-add-abort-keyword-argument
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add an abort: keyword, which lets you abort on failure#141
sampersand wants to merge 1 commit into
ruby:masterfrom
sampersand:swesterman-add-abort-keyword-argument

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@sampersand

@sampersandsampersand commented Apr 28, 2026

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Adds an abort: true keyword into OptionParser#parse! and friends. I also updated the documentation too

This is a small change but is quite useful. Example:

Old:

require'optparse'OPTS={}OptParse.newdo |op|
op.on'--foo','...'op.on'--bar','...'beginop.parse!into: OPTSrescueOptParse::ParseError=>errop.aborterrendend

Now:

require'optparse'OPTS={}OptParse.newdo |op|
op.on'--foo','...'op.on'--bar','...'op.parse!into: OPTS,abort: trueend

Comment threadlib/optparse.rb
Comment on lines +1745 to +1749
def order!(argv = default_argv, into: nil, abort: false, **keywords, &nonopt)
setter = ->(name, val) {into[name.to_sym] = val} if into
parse_in_order(argv, setter, **keywords, &nonopt)
rescue ParseError => err
abort ? abort(err) : raise

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This is the only non-doc change

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