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Refine error message

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Highlight failed command and suggest installing the command.
[Bug #16042]
This commit is contained in:
Nobuyoshi Nakada 2019-08-03 14:20:36 +09:00
parent ec0d742dd7
commit 4d75346187
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1 changed files with 6 additions and 1 deletions
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7
tool/pure_parser.rb
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@ -4,7 +4,12 @@ BEGIN {
colorize = Colorize.new
file = ARGV.shift
unless /\Abison .* (\d+)\.\d+/ =~ IO.popen(ARGV+%w[--version], &:read)
begin
version = IO.popen(ARGV+%w[--version], &:read)
rescue Errno::ENOENT
abort "Failed to run `#{colorize.fail ARGV.join(' ')}'; You may have to install it."
end
unless /\Abison .* (\d+)\.\d+/ =~ version
puts colorize.fail("not bison")
exit
end