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Feature.terminal truecolor #1413

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merged 9 commits into from Jan 27, 2020
Merged

Feature.terminal truecolor #1413

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b9a27c8
add a formatter for truecolor terminals
Jan 26, 2020
10ec33a
automatically use terminal-truecolor if $TERM == xterm
Jan 26, 2020
5ce4617
cache the style string
Jan 26, 2020
c32aa88
better error message
Jan 26, 2020
c877390
add support for the $COLORTERM variable
Jan 26, 2020
deb6148
add boilerplate to the top of the file
Jan 26, 2020
9d151eb
add a spec
Jan 26, 2020
e53c649
more robust truecolor checking
Jan 27, 2020
260dc3d
add in missing `require 'rbconfig'`
Jan 27, 2020
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12 changes: 10 additions & 2 deletions lib/rouge/cli.rb
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Expand Up @@ -200,9 +200,17 @@ def self.doc
yield %[ delimiters. implies --escape]
end

# TODO: find a better way to do this?
# There is no consistent way to do this, but this is used elsewhere,
# and we provide explicit opt-in and opt-out with $COLORTERM
def self.supports_truecolor?
ENV['TERM'] == 'xterm' || %w(24bit truecolor).include?(ENV['COLORTERM'])
return true if %w(24bit truecolor).include?(ENV['COLORTERM'])
return false if ENV['COLORTERM'] && ENV['COLORTERM'] =~ /256/

if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
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ENV['ConEmuANSI'] == 'ON' && !ENV['ANSICON']
else
ENV['TERM'] !~ /(^rxvt)|(-color$)/
end
end

def self.parse(argv)
Expand Down