Rework external sqlite3 dependency and use MiniPortile

.gitignore

@@ -6,7 +6,7 @@ doc/faq/faq.html
 *.swp
 test/test.db
 tmp
-vendor
+ports
 *.log
 *.o
 .config

tasks/vendor_sqlite3.rake

@@ -1,104 +1,41 @@
-require 'rake/clean'
-require 'rake/extensioncompiler'
+require "rake/clean"
+require "rake/extensioncompiler"
+require "mini_portile"
 
-# download sqlite3 library and headers
+$recipes = {}
 
-# only on Windows or cross platform compilation
-def dlltool(dllname, deffile, libfile)
-  # define if we are using GCC or not
-  if Rake::ExtensionCompiler.mingw_gcc_executable then
-    dir = File.dirname(Rake::ExtensionCompiler.mingw_gcc_executable)
-    tool = case RUBY_PLATFORM
-      when /mingw/
-        File.join(dir, 'dlltool.exe')
-      when /linux|darwin/
-        File.join(dir, "#{Rake::ExtensionCompiler.mingw_host}-dlltool")
-    end
-    return "#{tool} --dllname #{dllname} --def #{deffile} --output-lib #{libfile}"
-  else
-    if RUBY_PLATFORM =~ /mswin/ then
-      tool = 'lib.exe'
-    else
-      fail "Unsupported platform for cross-compilation (please, contribute some patches)."
-    end
-    return "#{tool} /DEF:#{deffile} /OUT:#{libfile}"
-  end
-end
+$recipes[:sqlite3] = MiniPortile.new "sqlite3", BINARY_VERSION
+$recipes[:sqlite3].files << "http://sqlite.org/sqlite-autoconf-#{URL_VERSION}.tar.gz"
 
-# required folder structure for --with-sqlite3-dir (include + lib)
-directory "vendor/sqlite3/lib"
-directory "vendor/sqlite3/include"
+namespace :ports do
+  directory "ports"
 
-# download amalgamation version (for include files)
-file "vendor/sqlite-amalgamation-#{URL_VERSION}.zip" => ['vendor'] do |t|
-  url = "http://www.sqlite.org/#{File.basename(t.name)}"
-  when_writing "downloading #{t.name}" do
-    cd File.dirname(t.name) do
-      system "wget -c #{url} || curl -C - -O #{url}"
-    end
-  end
-end
+  desc "Install port sqlite3 #{$recipes[:sqlite3].version}"
+  task :sqlite3 => ["ports"] do |t|
+    recipe = $recipes[:sqlite3]
+    checkpoint = "ports/.#{recipe.name}-#{recipe.version}-#{recipe.host}.installed"
 
-# download dll binaries
-file "vendor/sqlitedll-#{URL_VERSION}.zip" => ['vendor'] do |t|
-  url = "http://www.sqlite.org/#{File.basename(t.name)}"
-  when_writing "downloading #{t.name}" do
-    cd File.dirname(t.name) do
-      system "wget -c #{url} || curl -C - -O #{url}"
+    unless File.exist?(checkpoint)
+      recipe.cook
+      touch checkpoint
     end
-  end
-end
 
-# extract header files into include folder
-file "vendor/sqlite3/include/sqlite3.h" => ['vendor/sqlite3/include', "vendor/sqlite-amalgamation-#{URL_VERSION}.zip"] do |t|
-  full_file = File.expand_path(t.prerequisites.last)
-  when_writing "creating #{t.name}" do
-    cd File.dirname(t.name) do
-      sh "unzip #{full_file}"
-      # update file timestamp to avoid Rake perform this extraction again.
-      touch File.basename(t.name)
-    end
+    recipe.activate
   end
 end
 
-# extract dll files into lib folder
-file "vendor/sqlite3/lib/sqlite3.dll" => ['vendor/sqlite3/lib', "vendor/sqlitedll-#{URL_VERSION}.zip"] do |t|
-  full_file = File.expand_path(t.prerequisites.last)
-  when_writing "creating #{t.name}" do
-    cd File.dirname(t.name) do
-      sh "unzip #{full_file}"
-      # update file timestamp to avoid Rake perform this extraction again.
-      touch File.basename(t.name)
-    end
-  end
+unless ENV["SKIP_PORTILE"]
+  Rake::Task['compile'].prerequisites.unshift "ports:sqlite3"
 end
 
-# generate import library from definition and dll file
-file "vendor/sqlite3/lib/sqlite3.lib" => ["vendor/sqlite3/lib/sqlite3.dll"] do |t|
-  libfile = t.name
-  dllname = libfile.ext('dll')
-  deffile = libfile.ext('def')
-
-  when_writing "creating #{t.name}" do
-    sh dlltool(dllname, deffile, libfile)
+task :cross do
+  host = ENV.fetch("HOST", Rake::ExtensionCompiler.mingw_host)
+  $recipes.each do |_, recipe|
+    recipe.host = host
   end
-end
-
-# clean and clobber actions
-# All the uncompressed files must be removed at clean
-CLEAN.include('vendor/sqlite3')
 
-# clobber vendored packages
-CLOBBER.include('vendor')
-
-# vendor:sqlite3
-task 'vendor:sqlite3' => ["vendor/sqlite3/lib/sqlite3.lib", "vendor/sqlite3/include/sqlite3.h"]
-
-# hook into cross compilation vendored sqlite3 dependency
-if RUBY_PLATFORM =~ /mingw|mswin/ then
-  Rake::Task['compile'].prerequisites.unshift 'vendor:sqlite3'
-else
-  if Rake::Task.task_defined?(:cross)
-    Rake::Task['cross'].prerequisites.unshift 'vendor:sqlite3'
-  end
+  # hook compile task with dependencies
+  Rake::Task["compile"].prerequisites.unshift "ports:freetds"
 end
+
+CLOBBER.include("ports")