class ImageOptim::BinResolver::Bin
Holds bin name and path, gets version
Constants
- FAIL_CHECKS
- WARN_CHECKS
Attributes
name[R]
path[R]
version[R]
Public Class Methods
new(name, path)
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# File lib/image_optim/bin_resolver/bin.rb, line 15 def initialize(name, path) @name = name.to_sym @path = path.to_s @version = detect_version end
Public Instance Methods
check!()
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Run check_fail!, otherwise warn if version is known to misbehave
# File lib/image_optim/bin_resolver/bin.rb, line 53 def check! check_fail! WARN_CHECKS.each do |bin_name, matcher, message| next unless bin_name == name next unless matcher.match(version) warn "WARN: #{self} (#{matcher}) #{message}" end end
check_fail!()
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Fail if version will not work properly
# File lib/image_optim/bin_resolver/bin.rb, line 42 def check_fail! fail UnknownVersion, "didn't get version of #{self}" unless version FAIL_CHECKS.each do |bin_name, matcher, message| next unless bin_name == name next unless matcher.match(version) fail BadVersion, "#{self} (#{matcher}) #{message}" end end
to_s()
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# File lib/image_optim/bin_resolver/bin.rb, line 21 def to_s "#{name} #{version || '?'} at #{path}" end
Private Instance Methods
capture(cmd)
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# File lib/image_optim/bin_resolver/bin.rb, line 96 def capture(cmd) Cmd.capture(cmd) end
detect_version()
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Wrap version_string
with SimpleVersion
# File lib/image_optim/bin_resolver/bin.rb, line 66 def detect_version str = version_string str && SimpleVersion.new(str) end
escaped_path()
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# File lib/image_optim/bin_resolver/bin.rb, line 100 def escaped_path path.shellescape end
version_string()
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Getting version of bin, will fail for an unknown name
# File lib/image_optim/bin_resolver/bin.rb, line 72 def version_string case name when :advpng, :gifsicle, :jpegoptim, :optipng, :pngquant capture("#{escaped_path} --version 2> /dev/null")[/\d+(\.\d+){1,}/] when :svgo capture("#{escaped_path} --version 2>&1")[/\d+(\.\d+){1,}/] when :jhead, :'jpeg-recompress' capture("#{escaped_path} -V 2> /dev/null")[/\d+(\.\d+){1,}/] when :jpegtran capture("#{escaped_path} -v - 2>&1")[/version (\d+\S*)/, 1] when :pngcrush capture("#{escaped_path} -version 2>&1")[/\d+(\.\d+){1,}/] when :pngout date_regexp = /[A-Z][a-z]{2} (?: |\d)\d \d{4}/ date_str = capture("#{escaped_path} 2>&1")[date_regexp] Date.parse(date_str).strftime('%Y%m%d') if date_str when :jpegrescan # jpegrescan has no version so just check presence path && '-' else fail "getting `#{name}` version is not defined" end end