Rakefile

require 'rake/classic_namespace'
require 'rake/clean'

CLEAN.include('gen_*.pir')
CLEAN.include('*/gen_*.pir')
CLEAN.include('*/*/gen_*.pir')
CLEAN.include('Test.pir')
CLEAN.include('build.yaml')
CLEAN.include('*.c')
CLEAN.include('*.o')
CLOBBER.include('cardinal')
CLOBBER.include('*.pbc')

DEBUG = ENV['debug'] || false
ALTERNATIVE_RUBY = ENV['test_with'] || false
CONFIG = {} 
$tests = 0
$test_files = 0
$ok = 0
$nok = 0
$unknown = 0
$failures = 0
$expected_failures = 0
$unexpected_failures = []
$unexpected_passes = 0
$u_p_files = []
$missing = 0
$missing_files = []
$toomany = 0
$toomany_files = []
$issue_counts = Hash.new(0)
$issue_lacks = 0
$i_l_files = []
$pl = false
$start = Time.now

def clean?
    return false if $nok > $expected_failures
    return false if $failures > 0
    return false if $unknown > 0
    return false if $missing > 0
    return false if $toomany > 0
    return false if $issue_lacks > 0
    return true 
end

def pl(word)
    $pl ? word + "s" : word
end

def were
    $pl ? "were" : "was"
end

def are
    $pl ? "are" : "is"
end

def them
    $pl ? "them" : "it"
end

def parrot(input, output="", grammar="", target="")
    target = "--target=#{target}" if target != ""
    output = "-o #{output}" if output != ""
    puts "Running parrot: #{CONFIG[:parrot]} #{grammar} #{target} #{output} #{input}" if DEBUG
    sh "#{CONFIG[:parrot]} #{grammar} #{target} #{output} #{input}"
end

def make_exe(pbc)
    sh "#{CONFIG[:pbc_to_exe]} cardinal.pbc"
end

def test(file, name="")
    print "Adding #{file} as a test " if DEBUG
    pir_file = file.gsub(/.t$/,'.pir')
    if pir_file =~ /\//
        pir_file.gsub!(/\/([^\/]+)$/) {"/gen_#$1"}
    else
        pir_file = "gen_#{pir_file}"
    end
    if name == ""
        name = file.gsub(/.t$/,'').gsub(/^[0-9]+-/,'').gsub(/-/,'').gsub(/.*\//,'')
    end
    if ALTERNATIVE_RUBY
        task name do
            run_test file
        end
    else
        file "t/#{pir_file}" => [:config, "t/#{file}", "src/gen_actions.pir", "src/gen_grammar.pir"] do
            unless File.exists?('cardinal.pbc')
                Task['cardinal.pbc'].invoke
            end
            parrot("t/#{file}", "t/#{pir_file}", "cardinal.pbc", "pir")
        end
        puts "named #{name}" if DEBUG
        task name => [:config, "t/#{pir_file}", "cardinal.pbc", "Test.pir"] do |t|
            run_test pir_file, "#{t.scope.join(':')}:#{name}"
        end
    end
end

def run_test(file,name="")
    puts file if DEBUG
    name = file if name == ""
    $test_files += 1
    command = ALTERNATIVE_RUBY || CONFIG[:parrot]
    IO.popen("#{command} t/#{file}", "r") do |t|
        begin 
            plan = t.readline
        rescue EOFError
            plan = "x"
        end
        puts plan if DEBUG
        if plan =~ /^1\.\.([0-9]+)/
            tests = $1.to_i
            $tests += tests
            result = "#{$1} tests... "
            ok = 0
            nok = 0
            unknown = 0
            test = 0
            t.readlines.each do |line|
                test += 1
                puts line if DEBUG
                if line =~ /^ok #{test}/
                    ok += 1
                    if line =~ /TODO/
                        $unexpected_passes += 1
                        $u_p_files += [file]
                    end
                else 
                    if line =~ /^not ok #{test}/
                        nok += 1
                        if line =~ /(TODO|SKIP)/
                            $expected_failures += 1
                            if line =~ /See issue #([0-9]+)/
                                $issue_counts[$1] += 1
                            else
                                puts "Lacks issue." if DEBUG
                                $issue_lacks += 1
                                $i_l_files += [file]
                            end
                        else
                            $unexpected_failures += [file]
                        end
                    else
                        unknown += 1
                    end
                end
            end
            result += "#{ok} ok "
            $ok += ok
            result += "#{nok} not ok"
            $nok += nok
            result += " #{unknown} unknown" if unknown > 0
            $unknown += unknown
            if test < tests 
                result += " MISSING TESTS"
                $missing += 1
                $missing_files += [file]
            end
            if test > tests
                result += " TOO MANY TESTS"
                $toomany += 1
                $toomany_files += [file]
            end
        else
            result = "Complete failure... no plan given"
            $failures += 1
        end
        puts "Running #{name} #{result}"
    end
end

desc "Determine configuration information"
task :config => "build.yaml" do
    require 'yaml'
    File.open("build.yaml","r") do |f|
        CONFIG.update(YAML.load(f))
    end
    return false unless File.exist?(CONFIG[:parrot])
    return false unless File.exist?(CONFIG[:perl6grammar])
    return false unless File.exist?(CONFIG[:nqp])
    return false unless File.exist?(CONFIG[:pct])
    return false unless File.exist?(CONFIG[:pbc_to_exe])
end

file "build.yaml" do 
    require 'yaml'
    config = {}
    IO.popen("parrot_config build_dir", "r") do |p|
        config[:build_dir] = p.readline.chomp
    end
    puts "Detected parrot_config reports that build_dir is #{config[:build_dir]}."

    config[:parrot] = config[:build_dir] + "/parrot"
    config[:perl6grammar] = config[:build_dir] + "/runtime/parrot/library/PGE/Perl6Grammar.pbc"
    config[:nqp] = config[:build_dir] + "/compilers/nqp/nqp.pbc"
    config[:pct] = config[:build_dir] + "/runtime/parrot/library/PCT.pbc"
    config[:pbc_to_exe] = config[:build_dir] + "/pbc_to_exe"
    File.open("build.yaml","w") do |f|
        YAML.dump(config, f) 
    end
end

desc "Make the cardinal binary."
file "cardinal" => [:config, "cardinal.pbc"] do
    make_exe("cardinal.pbc")
end

sources = FileList.new('cardinal.pir',
                    'src/parser/quote_expression.pir',
                    'src/gen_grammar.pir',
                    'src/gen_actions.pir',
                    'src/gen_builtins.pir')

file "cardinal.pbc" => sources do
    parrot("cardinal.pir","cardinal.pbc")
end

file "src/gen_grammar.pir" => [:config, 'src/parser/grammar.pg'] do 
    parrot("src/parser/grammar.pg", "src/gen_grammar.pir", CONFIG[:perl6grammar])
end

file "src/gen_actions.pir" => [:config, "src/parser/actions.pm"] do
    parrot("src/parser/actions.pm","src/gen_actions.pir",CONFIG[:nqp],'pir')
end

builtins = FileList.new("src/builtins/guts.pir", "src/builtins/control.pir", "src/builtins/say.pir", "src/builtins/cmp.pir", "src/builtins/op.pir", "src/builtins/classes.pir", "src/classes/Object.pir", "src/classes/Module.pir", "src/classes/Class.pir", "src/classes/Exception.pir", "src/classes/NilClass.pir", "src/classes/String.pir", "src/classes/Integer.pir", "src/classes/Array.pir", "src/classes/Hash.pir", "src/classes/Range.pir", "src/classes/TrueClass.pir", "src/classes/FalseClass.pir", "src/classes/Kernel.pir", "src/classes/Time.pir", "src/classes/Math.pir", "src/classes/GC.pir", "src/classes/IO.pir", "src/classes/Proc.pir", "src/classes/File.pir", "src/classes/FileStat.pir", "src/classes/Dir.pir", "src/classes/Env.pir", "src/builtins/globals.pir", "src/builtins/eval.pir", "src/classes/Continuation.pir") 

file "src/gen_builtins.pir" => builtins do
    puts "Generating src/gen_builtins.pir"
    File.open('src/gen_builtins.pir','w') do |f|
        builtins.each do |b|
            f.write(".include \"#{b}\"\n")
        end
    end  
end

file "Test.pir" => ["cardinal.pbc", "Test.rb"] do
    parrot("Test.rb", "Test.pir", "cardinal.pbc", "pir")
end

task :default => ["cardinal", "Test.pir"]

namespace :test do |ns|
    test "00-sanity.t"
    test "01-stmts.t"
    test "02-functions.t"
    test "03-return.t"
    test "04-indexed.t"
    test "05-op-cmp.t"
    test "07-loops.t"
    test "08-class.t"
    test "09-test.t"
    test "10-regex.t"
    test "11-slurpy.t"
    test "12-gather.t"
    test "99-other.t"
    test "alias.t"
    test "assignment.t"
    test "blocks.t"
    test "bool.t"
    test "constants.t"
    test "continuation.t"
    test "freeze.t"
    test "gc.t"
    test "nil.t"
    test "proc.t"
    test "range.t"
    test "splat.t"
    test "time.t"
    test "yield.t"
    test "zip.t"
    
    namespace :array do 
        test "array/array.t"
        test "array/assign.t"
        test "array/at.t"
        test "array/clear.t"
        test "array/collect.t"
        test "array/compact.t"
        test "array/concat.t"
        test "array/delete.t"
        test "array/empty.t"
        test "array/equals.t"
        test "array/fetch.t"
        test "array/fill.t"
        test "array/first.t"
        test "array/flatten.t"
        test "array/grep.t"
        test "array/include.t"
        test "array/index.t"
        test "array/insert.t"
        test "array/intersection.t"
        test "array/join.t"
        test "array/mathop.t"
        test "array/nitems.t"
        test "array/pop.t"
        test "array/push.t"
        test "array/reject.t"
        test "array/replace.t"
        test "array/reverse.t"
        test "array/shift.t"
        test "array/slice.t"
        test "array/sort.t"
        test "array/to_s.t"
        test "array/uniq.t"
        test "array/values_at.t"
        test "array/warray.t"

        desc "Run tests on Array."
        task :all => [:array, :assign, :at, :clear, :collect, :compact, :concat, :delete, :empty, :equals, :fetch, :fill, :first, :flatten, :grep, :include, :index, :insert, :intersection, :join, :mathop, :nitems, :pop, :push, :reject, :replace, :reverse, :shift, :slice, :sort, :to_s, :uniq, :values_at, :warray]
    end
    
    namespace :file do 
        test "file/dir.t"
        test "file/file.t"
        test "file/stat.t" 
        
        desc "Run tests on File."
        task :all => [:dir, :file, :stat]
    end

    namespace :hash do
        test "hash/hash.t"
        test "hash/exists.t"
        
        desc "Run tests on Hash."
        task :all => [:hash, :exists]
    end
    
    namespace :integer do
        test "integer/integer.t"
        test "integer/times.t"
        test "integer/cmp.t"

        desc "Run tests on Integer."
        task :all => [:integer, :times, :cmp]
    end

    namespace :kernel do
        test "kernel/exit.t"
        test "kernel/open.t"
        test "kernel/sprintf.t"

        desc "Run tests on Kernel."
        task :all => [:exit, :open, :sprintf]
    end

    namespace :math do
        test "math/functions.t"
        
        desc "Run tests on Math."
        task :all => [:functions]
    end
    
    namespace :range do
        test "range/each.t"
        test "range/infix-exclusive.t"
        test "range/infix-inclusive.t"
        test "range/membership-variants.t"
        test "range/new.t"
        test "range/to_a.t"
        test "range/to_s.t"
        test "range/tofrom-variants.t"

        desc "Run tests on Range."
        task :all => [:each, :infixexclusive, :infixinclusive, :membershipvariants, :new, :to_a, :to_s, :tofromvariants]
    end 

    namespace :string do
        test "string/add.t"
        test "string/block.t"
        test "string/capitalize.t"
        test "string/chops.t"
        test "string/cmp.t"
        test "string/concat.t"
        test "string/downcase.t"
        test "string/empty.t"
        test "string/eq.t"
        test "string/mult.t"
        test "string/new.t"
        test "string/quote.t"
        test "string/random_access.t"
        test "string/reverse.t"
        test "string/upcase.t"

        desc "Run tests on String."
        task :all => [:add, :block, :capitalize, :chops, :cmp, :concat, :downcase, :empty, :eq, :mult, :new, :quote, :random_access, :reverse, :upcase]
    end

    desc "Run basic tests."
    task :basic => [:sanity, :stmts, :functions, :return, :indexed, :opcmp, :loops, :class, :test, :regex, :slurpy, :gather, :other, :alias, :assignment, :bool, :blocks, :constants, :continuation, :freeze, :gc, :nil, :proc, :range, :splat, :time, :yield, :zip]

    desc "Run the entire test suite."
    task :all => [:basic, "array:all", "file:all", "hash:all", "integer:all", "kernel:all", "math:all", "range:all", "string:all"] do
        dur_seconds = Time.now.to_i - $start.to_i
        dur_minutes = 0
        while dur_seconds > 60
            dur_seconds -= 60
            dur_minutes += 1
        end
        puts "Test statistics:"
        puts " The test suite took #{dur_minutes}:#{dur_seconds}."
        puts " #{$tests} tests were run, from #{$test_files} files."
        puts " #{$ok} tests passed, #{$unexpected_passes} of which were unexpected." 
        unless $u_p_files.empty?
            $u_p_files.uniq!
            $pl = $u_p_files.length > 1
            puts " Unexpected passes were found in the following #{pl "file"}:"
            $u_p_files.each do |pass|
                puts "  #{pass}"
            end
        end
        $pl = $nok > 1
        puts " #{$nok} #{pl "test"} failed, #{$expected_failures} of which were expected."
        unless $unexpected_failures.empty?
            $unexpected_failures.uniq!
            $pl = $unexpected_failures.size > 1
            puts " Unexpected #{pl "failure"} #{were} found in the following #{pl "file"}:"
            $unexpected_failures.each do |fail|
                puts "  #{fail}"
            end
        end
        $pl = $missing_files.size > 1
        unless $missing_files.empty?
            puts " There #{were} #{$missing} test #{pl "file"} that reported fewer results than were planned:"
            $missing_files.uniq!
            $missing_files.each do |missing|
                puts "  #{missing}"
            end
        end
        $pl = $toomany_files.size > 1
        unless $toomany_files.empty?
            puts " There #{were} #{$toomany} test #{pl "file"} that reported more results than were planned:"
            $toomany_files.uniq!
            $toomany_files.each do |toomany|
                puts "  #{toomany}"
            end
        end
        $pl = $unknown > 1
        puts " There #{were} #{$unknown} unknown or confusing #{pl "result"}." if $unknown > 0
        $pl = $failures > 1
        puts " There #{were} #{$failures} complete #{pl "failure"}." if $failures > 0
        $pl = $issue_lacks.size > 1
        unless $i_l_files.empty?
            puts " There #{were} #{$issue_lacks} #{pl "test"} that used todo or skip without noting an issue number, found in:"
            $i_l_files.uniq!
            $i_l_files.each do |file|
                puts "  #{file}"
            end
        end
        puts " -- CLEAN FOR COMMIT --" if clean?
    end

    desc "Run test:all *and* produce stats about known issues."
    task :stats => [:all] do
        $pl = $issue_counts.size > 1
        unless $issue_counts.empty?
            puts " The following #{are} the #{pl "issue"} currently known to affect the tests, and a count of the fails associated with #{them}:"
            $issue_counts.each do |issue, count|
                $pl = count > 1
                puts "  Issue ##{issue}: #{count} #{pl "fail"}"
            end
        else
            puts " There are no issues currently known to affect the tests."
        end
    end
end