root/lang/ruby/misc/rake_template/Rakefile-latex @ 24878

RAKEINFO = ".rakeinfo"
def find_target
    if FileTest.exist?(RAKEINFO)
        return IO.read(RAKEINFO).chomp
    end
    target = Dir.glob("*.tex").first
    basename = File.basename(target, ".tex")
    File.open(RAKEINFO, "w") do |file|
        file.puts(basename)
    end
    basename
end
def tex_dep(texname)
    inputs = [texname]
    resources = [RAKEINFO]
    bibs = []
    while !inputs.empty?
        resources << (input = inputs.shift)
        begin
            File.open(input){|file|
                file.each_line{|line|
                    if /\\input\{(.+)\}/ =~ line
                        inputs << $1
                    elsif /\\(?:verbatiminput|includegraphics\[.+\])\{(.+)\}/ =~ line
                        resources << $1
                    elsif /\\bibliography\{(.+)\}/ =~ line
                        bibs += $1.split(",").map{|x| "#{x}.bib"}
                    end
                }
            }
        rescue
            STDERR.puts $!
        end
    end
    [resources, bibs]
end

Dir.glob("*.tex").each do|tex|
    basename = File.basename(tex, ".tex")
    dvi = "#{basename}.dvi"
    desc "Compile #{tex} -> #{dvi}"

    resources, bibs = tex_dep(tex)
    task basename => dvi
    file dvi => (resources+bibs) do
        File.open(RAKEINFO, "w") do |file|
            file.puts(basename)
        end
        texcompile(basename, bibs)
    end
end

$TARGET     = find_target
$TEXNAME    = "#$TARGET.tex"
$DVINAME    = "#$TARGET.dvi"
$PDFNAME    = "#$TARGET.pdf"
$PSNAME     = "#$TARGET.ps"
$TEX        = "platex"
$BIB        = "jbibtex"
$DVIPS      = "dvips"
$DVIPDF     = "dvipdfmx"
$BIBTEXDIR  = ENV["BIBTEXDIR"]
$RESOURCES,$BIBS = tex_dep($TEXNAME)

desc "Compile LaTeX -> DVI"
task :default => $DVINAME

desc "Compile DVI -> PDF"
task :pdf => $PDFNAME

desc "Compile DVI -> PS"
task :ps => $PSNAME

desc "Link BibTeX files"
task :bib => $BIBS

desc "Print Depends Information"
task :dep do
    puts "#$DVINAME: #{tex_dep($TEXNAME).join(" ")}"
    puts "#$PDFNAME: #$DVINAME"
    puts "#$PSNAME: #$DVINAME"
end

require "rake/clean"
CLEAN.include(%w[aux toc lot lof log bbl blg bib].map{|x|"*.#{x}"} << RAKEINFO)
CLOBBER.include([$DVINAME, $PDFNAME, $PSNAME])

def texcompile(target, bibs)
    begin
        if !bibs.empty?
            sh "#$TEX #{target}"
            sh "#$BIB #{target}"
        end
        sh "#$TEX #{target}"
        sh "#$TEX #{target}"
    rescue
        puts $!
        sh "touch -t 9901010000 #{target}.dvi"
    end
end

desc "Force Compile LaTeX -> DVI"
task :force do
    texcompile($TARGET)
end

rule ".pdf" => [".dvi"] do |t|
    sh "#$DVIPDF #{t.source}"
end

rule ".ps" => [".dvi"] do |t|
    sh "#$DVIPS #{t.source}"
end

rule ".bib" do |bib|
    ln "#$BIBTEXDIR/#{bib}", "."
end

# vim: set ft=ruby sw=4 ts=4 et: