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begin
gem 'rake-compiler', '~>0.7'
require 'rake/clean'
require 'rake/extensioncompiler'
# download sqlite3 library and headers
# 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
# required folder structure for --with-sqlite3-dir (include + lib)
directory "vendor/sqlite3/lib"
directory "vendor/sqlite3/include"
# download amalgamation BINARY_VERSION (for include files)
file "vendor/sqlite-amalgamation-#{BINARY_VERSION}.zip" => ['vendor'] do |t|
url = "http://www.sqlite.org/#{Date.today.year}/#{File.basename(t.name)}"
when_writing "downloading #{t.name}" do
cd File.dirname(t.name) do
system "wget -c #{url} || curl -L -C - -O #{url}"
end
end
end
# download dll binaries
file "vendor/sqlite-dll-win32-x86-#{BINARY_VERSION}.zip" => ['vendor'] do |t|
url = "http://www.sqlite.org/#{Date.today.year}/#{File.basename(t.name)}"
when_writing "downloading #{t.name}" do
cd File.dirname(t.name) do
system "wget -c #{url} || curl -L -C - -O #{url}"
end
end
end
# extract header files into include folder
file "vendor/sqlite3/include/sqlite3.h" => ['vendor/sqlite3/include', "vendor/sqlite-amalgamation-#{BINARY_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 -j #{full_file}"
# update file timestamp to avoid Rake perform this extraction again.
touch File.basename(t.name)
end
end
end
# extract dll files into lib folder
file "vendor/sqlite3/lib/sqlite3.dll" => ['vendor/sqlite3/lib', "vendor/sqlite-dll-win32-x86-#{BINARY_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 -j #{full_file}"
# update file timestamp to avoid Rake perform this extraction again.
touch File.basename(t.name)
end
end
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)
end
end
# 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.tasks.map {|t| t.name }.include? 'cross'
Rake::Task['cross'].prerequisites.unshift 'vendor:sqlite3'
end
end
rescue LoadError
end
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