run

#!/bin/bash

testsNbByStep=( 4 1 4 4 2 )

masterBranch="origin/master"
testBranch="test"
solutionBranch="solution"
workshopBranch="workshop"
referenceBranch=""

MessageColor='\033[0;32m'
CancelMessageColor='\033[0m'

function switchRunnerIfWindows() {
  case "$(uname -s)" in
   CYGWIN*|MINGW*|MSYS*)
     echo 'Windows detected => Use run.bat'
	 ./run.bat
	 exit
     ;;
  esac
}

function askLanguage() {
  while true; do
    read -p "Language (js, csharp, java, php, scala) ?  " response
    case "$response" in
    "js")
      selectedLanguage=$response
      referenceBranch="origin/js/v2"
      break
      ;;
    "csharp")
      selectedLanguage=$response
      referenceBranch="origin/csharp/v2.3"
      break
      ;;
    "java")
      selectedLanguage=$response
      referenceBranch="origin/java/v2.1"
      break
      ;;
    "scala")
      selectedLanguage=$response
      referenceBranch="origin/scala/v1"
      break
      ;;
    "php")
      selectedLanguage=$response
      referenceBranch="origin/php/v2"
      break
      ;;
    esac
  done
}

function clean() {
  echo "Clean repository..."

  git clean -d -x -f > /dev/null
  git reset --hard HEAD > /dev/null
  git checkout master > /dev/null
  git branch -D $testBranch > /dev/null 2>&1 
  git branch -D $solutionBranch > /dev/null 2>&1
  git branch -D $workshopBranch > /dev/null 2>&1

  git branch | grep -e '^\s*workshop-step[0-9]$' | xargs git branch -D > /dev/null 2>&1
  git tag --list | grep -e '^step[0-9]$' | xargs git tag -d > /dev/null 2>&1
  git tag --list | grep -e '^step[0-9]-test[0-9]$' | xargs git tag -d > /dev/null 2>&1
}

stepNb=${#testsNbByStep[@]}
currentStep=1
currentTestOfStep=1
nextStep=1
nextTestOfStep=1
currentTestTag=""
nextTestTag=""
currentStepTag=""
nextStepTag=""
hasNextTestForCurrentStep=false
hasNextStep=false

function updateCurrentTestTag(){
  currentTestTag="step${currentStep}-test${currentTestOfStep}"
}

function updateNextTestTag(){
  if [ $currentStep -le $stepNb ] && [ ${testsNbByStep[$currentStep-1]} -le $currentTestOfStep ]
  then
    nextStep=$(($currentStep + 1))
	nextTestOfStep=1
    nextTestTag="step${nextStep}-test1"
  else
    nextTestOfStep=$(($currentTestOfStep + 1))
    nextTestTag="step${currentStep}-test${nextTestOfStep}"
  fi
}

function updateCurrentStepTag(){
  currentStepTag="step${currentStep}"
}

function updateNextStepTag(){
  nextStep=$(($currentStep + 1))
  nextStepTag="step${nextStep}"
}

function updateHasNextTestForCurrentStep(){
  if [ $currentStep -le $stepNb ] &&  [ $currentTestOfStep -lt ${testsNbByStep[$currentStep-1]} ]
  then 
    hasNextTestForCurrentStep=true
  else
    hasNextTestForCurrentStep=false
  fi
}

function updateHasNextStep(){
  if [ $currentStep -lt $stepNb ]
  then 
    hasNextStep=true
  else
    hasNextStep=false
  fi
}

function updateTagVariables(){
  updateCurrentTestTag
  updateNextTestTag
  updateCurrentStepTag
  updateNextStepTag
  updateHasNextTestForCurrentStep
  updateHasNextStep
}

function nextTest(){
  if [ ${testsNbByStep[$currentStep-1]} -le $currentTestOfStep ]
  then
    currentStep=$(($currentStep + 1))
    currentTestOfStep=1
  else
    currentTestOfStep=$(($currentTestOfStep + 1))
  fi

  updateTagVariables
}

function resetTestCounter(){
  currentStep=1
  currentTestOfStep=1

  updateTagVariables
}

function addStepNavigationCommand(){
  tag=$1
  stepNum=$2

  cat << EOF > ./jumpToNextStep
#!/bin/bash

git add -A
git commit -m "Abort test"
git checkout -b ${workshopBranch}-${tag} ${tag}
git merge ${tag}-test1 > /dev/null
git checkout --ours .
git add .
git commit -m "Merge with test branch"

echo ""
echo ""

printf '$MessageColor'
cat stepsDoc/step${stepNum}.txt
printf '$CancelMessageColor'

echo ""
echo ""
EOF
  
  chmod +x ./jumpToNextStep
  git add jumpToNextStep > /dev/null

  git commit -m "Add step navigation commands" > /dev/null
}

function addEndStepNavigationCommand(){
	cat << EOF > ./jumpToNextStep
#!/bin/bash

printf '$MessageColor'
echo ""
echo ""
cat stepsDoc/end.txt
echo ""
echo ""
printf '$CancelMessageColor'

EOF

  chmod +x ./jumpToNextStep
  git add jumpToNextStep > /dev/null

  git commit -m "Add end commands" > /dev/null
}

function pickCommitForSolution(){
  line="$1"
  hash="$(echo $line | cut -d' ' -f1)"

  printf "."

  if [[ $line == *" KO]"* ]] && [ $currentTestOfStep -eq 1 ]
  then 
	if [ $hasNextStep = true ]
	then
		addStepNavigationCommand $nextStepTag $nextStep
	else
		addEndStepNavigationCommand
	fi
  fi

  git cherry-pick $hash > /dev/null
  
  if [[ $line == *" KO]"* ]] && [ $currentTestOfStep -eq 1 ]
  then
    git tag $currentStepTag > /dev/null
    echo "${currentStepTag} Ok"
  fi

  if [[ $line == *" KO]"* ]]
  then
    nextTest
  fi
}

function initializeSolutionBranch() {
  echo "Initialize solution branch"

  resetTestCounter

  git checkout -b $solutionBranch $masterBranch > /dev/null
  git log $referenceBranch --pretty=tformat:'%h %s' --reverse -E HEAD.. | while read line
      do pickCommitForSolution "$line"
  done

  echo "Done"
}

function addNavigationCommand(){
  tag=$1
  stepNum=$2
  testNum=$3
  
  cat << EOF > ./next
#!/bin/bash
 
git add -A
git commit -m "Resolve test"
git merge $tag
EOF
  
  if [ $testNum -eq 1 ]
  then 
	cat << EOF >> ./next

echo ""
echo ""

printf '$MessageColor'
cat stepsDoc/step${stepNum}.txt
printf '$CancelMessageColor'

echo ""
echo ""
EOF
  else
	cat << EOF >> ./next

printf '$MessageColor'
echo ""
echo ""
echo "========================"
echo "===  STEP $(($stepNum - 1)) - Test $testNum ==="
echo "========================"
echo ""
echo ""
printf '$CancelMessageColor'
EOF
  fi
  
  chmod +x ./next
  git add next > /dev/null
  
  git commit -m "Add test navigation commands" > /dev/null
}

function addEndNavigationCommand(){
	cat << EOF > ./next
#!/bin/bash

printf '$MessageColor'
echo ""
echo ""
cat stepsDoc/end.txt
echo ""
echo ""
printf '$CancelMessageColor'

EOF
  
  chmod +x ./next
  git add next > /dev/null
  
  git commit -m "Add end navigation commands" > /dev/null
}

function pickCommitForTest(){
  line=$1
  hash="$(echo $line | cut -d' ' -f1)"
    
  printf "."

  git cherry-pick $hash > /dev/null

  if [[ $line == *" KO]"* ]]
  then
      if [ $hasNextStep = true ] || [ $hasNextTestForCurrentStep = true ]
      then
        addNavigationCommand $nextTestTag $nextStep $nextTestOfStep
	  else
		addEndNavigationCommand
      fi
       
      git tag $currentTestTag > /dev/null
      echo "$currentTestTag Ok"
  
      nextTest
  fi
}

function initializeTestBranch(){
  echo "Initialize test branch"

  resetTestCounter

  git checkout -b $testBranch $masterBranch > /dev/null
  git log $solutionBranch --pretty=tformat:'%h %s' --grep '[^K]\][^\[]' --grep '^[^\[]' --reverse -E HEAD.. | while read line
    do pickCommitForTest "$line"
  done

  echo "Done"
}

function initializeWorkflow(){
  echo "Initialize workspace"
    
  resetTestCounter

  git checkout -b $workshopBranch $currentTestTag
}

function customInitialize(){
  [ -f ./initialize ] && ./initialize
}

function displayWarningIfNotMaster(){
  currentBranchName="$(git name-rev --name-only HEAD)"
  if [[ $currentBranchName != "master" ]] 
  then
    read -p "Are you sure you want to reinit everything? All your work will be lost! (y/N) : " response
    case $response in
      [Yy]* ) ;;
      * ) exit;;
    esac
  fi
}

switchRunnerIfWindows

displayWarningIfNotMaster
askLanguage

clean
initializeSolutionBranch
initializeTestBranch
initializeWorkflow

customInitialize

printf $MessageColor
echo "Koan OK"
echo ""
echo ""
cat stepsDoc/step1.txt
echo ""
echo ""
printf $CancelMessageColor