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Require output file on command line

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This commit is contained in:
Josh Holtrop 2021-05-01 14:52:16 -04:00
parent 768a0ef17f
commit c1666a1e74
2 changed files with 9 additions and 14 deletions
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2
lib/imbecile.rb
View File

@ -6,7 +6,7 @@ module Imbecile
class << self
def run(input_file)
def run(input_file, output_file)
grammar = Grammar.new
unless grammar.load(input_file)
return 2

21
lib/imbecile/cli.rb
View File

@ -2,7 +2,7 @@ module Imbecile
module CLI
USAGE = <<EOF
Usage: #{$0} [options] <input-file>
Usage: #{$0} [options] <input-file> <output-file>
Options:
--version Show program version and exit
-h, --help Show this usage and exit
@ -11,7 +11,7 @@ EOF
class << self
def run(args)
input_file = nil
extra_args = []
args.each do |arg|
case arg
when "--version"
@ -24,23 +24,18 @@ EOF
$stderr.puts "Error: unknown option #{arg}"
return 1
else
if input_file
$stderr.puts "Error: only one input file supported"
return 1
else
input_file = arg
extra_args << arg
end
end
end
if input_file.nil?
$stderr.puts "Error: must specify input file"
if extra_args.size != 2
$stderr.puts "Error: specify input and output files"
return 1
end
unless File.readable?(input_file)
$stderr.puts "Error: cannot read #{input_file}"
unless File.readable?(args[0])
$stderr.puts "Error: cannot read #{args[0]}"
return 2
end
Imbecile.run(input_file)
Imbecile.run(*args)
end
end