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# module : base/system
# copyright : PRAGMA Advanced Document Engineering
# version : 2002-2005
# author : Hans Hagen
#
# project : ConTeXt / eXaMpLe
# concept : Hans Hagen
# info : j.hagen@xs4all.nl
# www : www.pragma-ade.com
require "rbconfig"
module System
@@mswindows = RbConfig::CONFIG['host_os'] =~ /mswin/
@@binpaths = ENV['PATH'].split(File::PATH_SEPARATOR)
@@binsuffixes = if $mswindows then ['.exe','.com','.bat'] else ['','.sh','.csh'] end
@@located = Hash.new
@@binnames = Hash.new
if @@mswindows then
@@binnames['ghostscript'] = ['gswin32c.exe','gs.cmd','gs.bat']
@@binnames['imagemagick'] = ['imagemagick.exe','convert.exe']
@@binnames['inkscape'] = ['inkscape.exe']
else
@@binnames['ghostscript'] = ['gs']
@@binnames['imagemagick'] = ['convert']
@@binnames['inkscape'] = ['inkscape']
end
def System.null
if @@mswindows then 'nul' else '/dev/null' end
end
def System.unix?
not @@mswindows
end
def System.mswin?
@@mswindows
end
def System.binnames(str)
if @@binnames.key?(str) then
@@binnames[str]
else
[str]
end
end
def System.prependengine(str)
if str =~ /^\S+\.(pl|rb|lua|py)/io then
case $1
when 'pl' then return "perl #{str}"
when 'rb' then return "ruby #{str}"
when 'lua' then return "lua #{str}"
when 'py' then return "python #{str}"
end
end
return str
end
def System.locatedprogram(program)
if @@located.key?(program) then
return @@located[program]
else
System.binnames(program).each do |binname|
if binname =~ /\..*$/io then
@@binpaths.each do |path|
if FileTest.file?(str = File.join(path,binname)) then
return @@located[program] = System.prependengine(str)
end
end
end
binname.gsub!(/\..*$/io, '')
@@binpaths.each do |path|
@@binsuffixes.each do |suffix|
if FileTest.file?(str = File.join(path,"#{binname}#{suffix}")) then
return @@located[program] = System.prependengine(str)
end
end
end
end
end
return @@located[program] = "texmfstart #{program}"
end
def System.command(program,arguments='')
if program =~ /^(.*?) (.*)$/ then
program = System.locatedprogram($1) + ' ' + $2
else
program = System.locatedprogram(program)
end
program = program + ' ' + arguments if ! arguments.empty?
program.gsub!(/\s+/io, ' ')
#program.gsub!(/(\/\.\/)+/io, '/')
program.gsub!(/\\/io, '/')
return program
end
def System.run(program,arguments='',pipe=false,collect=false)
if pipe then
if collect then
`#{System.command(program,arguments)} 2>&1`
else
`#{System.command(program,arguments)}`
end
else
system(System.command(program,arguments))
end
end
def System.pipe(program,arguments='',collect=false)
System.run(program,arguments,true)
end
def System.safepath(path)
if path.match(/ /o) then "\"#{path}\"" else path end
end
end
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