Split documentation chapters into files

rakelib/doc.rake

@@ -7,17 +7,26 @@ require 'pathname'
 require 'rake/clean'
 
 CLEAN.include 'build/doc'
-
 directory 'build/doc'
 
-rule /build\/doc\/\w+.pdf/ => lambda { |t|
-  [
-    Pathname.new(t).relative_path_from('build').sub_ext('.tex').to_path,
-    'build/doc'
-  ]
-} do |t|
-  sh 'pdflatex', '--output-directory', 'build/doc', t.prerequisites.first
+rule '.bbl' => '.bcf' do |t|
+  task_target = Pathname.new t.name
+  chdir = 'doc'
+  output_directory = task_target.dirname.relative_path_from(chdir).to_path
+  source = task_target.basename('.bbl').to_path
+
+  sh 'biber', '-output-directory', output_directory, source, chdir:
+end
+
+namespace :doc do
+  task :tex do
+    sh 'pdflatex', '-output-directory', '../build/doc', 'report', chdir: 'doc'
+  end
 end
 
 desc 'Generate documentation'
-task doc: 'build/doc/language.pdf'
+task doc: 'doc:tex' do
+  Rake::Task['build/doc/report.bbl'].invoke
+  Rake::Task['doc:tex'].reenable
+  Rake::Task['doc:tex'].invoke
+end