From e2477ef65e6728d5c0921ab9fcdad100464ee52e Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 18 May 2022 17:31:07 +0200
Subject: [PATCH 01/15] first draft

---
 .../azure-devops/pipeline_generator.sh        | 48 ++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index 3edeb985f..d926f6ef6 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -43,6 +43,9 @@ red='\e[0;31m'
 # Common var
 commonTemplatesPath="scripts/pipelines/azure-devops/templates/common"
 
+# Undo-Level for the script. Used to clean up the resources in case of a failure
+undoLevel=0
+
 function help {
     echo ""
     echo "Generates a pipeline on Azure DevOps based on the given definition."
@@ -157,6 +160,9 @@ function createNewBranch {
     [ $? != "0" ] && echo -e "${red}The local directory: '${localDirectory}' cannot be found, please check the path." && exit 1
 
     git checkout -b ${sourceBranch}
+
+    # clear local-branches
+    ${undoLevel}=1
 }
 
 function copyYAMLFile {
@@ -201,6 +207,9 @@ function commitCommonFiles {
 
     git commit -m "Adding the source YAML"
     git push -u origin ${sourceBranch}
+
+    # clean up remote-branches
+    ${undoLevel}=2
 }
 
 function createPipeline {
@@ -208,7 +217,9 @@ function createPipeline {
     echo -ne ${white}
 
     # Create Azure Pipeline
-    az pipelines create --name $pipelineName --yml-path "${pipelinePath}/${yamlFile}" --skip-first-run true
+    result=$(az pipelines create --name $pipelineName --yml-path "${pipelinePath}/${yamlFile}" --skip-first-run true)
+
+    ${undoLevel}=3
 }
 
 # Function that adds the variables to be used in the pipeline.
@@ -272,6 +283,41 @@ function createPR {
     fi
 }
 
+function clearLocalBranches {
+    cd "${localDirectory}"
+
+    git checkout master
+
+    git branch -D ${sourceBranch}
+}
+
+function clearRemoteBranches {
+    git push origin ${sourceBranch}
+}
+
+function clearRemotePipeline {
+    # 
+}
+
+function clearPipeline {
+    
+}
+
+function clearPollution {
+    # automatically frees all resources
+    if (${undoLevel} > 0) {
+        clearLocalBranches()
+    }
+
+    if (${undoLevel} > 1) {
+        clearRemoteBranches()
+    }
+
+    if (${undoLevel} > 2) {
+        clearRemotePipeline()
+    }
+}  
+
 if [[ "$help" == "true" ]]; then help; fi
 
 importConfigFile

From a5c193c4f2a380b4ea9e010f94c76031d851d6ec Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 18 May 2022 18:35:11 +0200
Subject: [PATCH 02/15] Update pipeline_generator.sh

---
 .../azure-devops/pipeline_generator.sh        | 73 ++++++++++++-------
 1 file changed, 47 insertions(+), 26 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index d926f6ef6..1692d0be4 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -157,12 +157,16 @@ function createNewBranch {
 
     # Create the new branch.
     cd "${localDirectory}"
+
+    # store current branch 
+    originalBranch=$(git branch --show-current)
+
     [ $? != "0" ] && echo -e "${red}The local directory: '${localDirectory}' cannot be found, please check the path." && exit 1
 
     git checkout -b ${sourceBranch}
 
     # clear local-branches
-    ${undoLevel}=1
+    undoLevel=1
 }
 
 function copyYAMLFile {
@@ -209,7 +213,7 @@ function commitCommonFiles {
     git push -u origin ${sourceBranch}
 
     # clean up remote-branches
-    ${undoLevel}=2
+    undoLevel=2
 }
 
 function createPipeline {
@@ -217,9 +221,9 @@ function createPipeline {
     echo -ne ${white}
 
     # Create Azure Pipeline
-    result=$(az pipelines create --name $pipelineName --yml-path "${pipelinePath}/${yamlFile}" --skip-first-run true)
+    pipelineResult=$(az pipelines create --name $pipelineName --yml-path "${pipelinePath}/${yamlFile}" --skip-first-run true)
 
-    ${undoLevel}=3
+    undoLevel=3
 }
 
 # Function that adds the variables to be used in the pipeline.
@@ -229,7 +233,7 @@ function addCommonPipelineVariables {
         echo "Skipping creation of the variable artifactPath as the flag has not been used."
     else
         # Add the extra artifact to store variable.
-        az pipelines variable create --name "artifactPath" --pipeline-name "$pipelineName" --value "${artifactPath}"
+        variableResult=$(az pipelines variable create --name "artifactPath" --pipeline-name "$pipelineName" --value "${artifactPath}")
     fi
 }
 
@@ -286,36 +290,51 @@ function createPR {
 function clearLocalBranches {
     cd "${localDirectory}"
 
-    git checkout master
+    git checkout $originalBranch
 
     git branch -D ${sourceBranch}
 }
 
 function clearRemoteBranches {
-    git push origin ${sourceBranch}
-}
+    # update list of remotes
+    git fetch
 
-function clearRemotePipeline {
-    # 
+    # delete mapped remote-branch
+    git push origin --delete ${sourceBranch}
 }
 
-function clearPipeline {
-    
+function clearPipelineFiles {
+    # clear the files
+    cd "${localDirectory}"
+
+    if [ -d "./pipelines" ]; then
+        rm -rf ./pipelines
+    fi
 }
 
+# function clearPipeline {
+
+# }
+
+
 function clearPollution {
     # automatically frees all resources
-    if (${undoLevel} > 0) {
-        clearLocalBranches()
-    }
 
-    if (${undoLevel} > 1) {
-        clearRemoteBranches()
-    }
+    #if (${undoLevel} > 3) {
+    #    clearVariables
+    #}
 
-    if (${undoLevel} > 2) {
-        clearRemotePipeline()
-    }
+    #if (${undoLevel} > 2) {
+    #    clearPipeline
+    #}
+
+    if [ ${undoLevel} > 1 ]; then
+        clearRemoteBranches
+    fi
+
+    if [ ${undoLevel} > 0 ]; then 
+        clearLocalBranches
+    fi
 }  
 
 if [[ "$help" == "true" ]]; then help; fi
@@ -336,12 +355,14 @@ type copyScript &> /dev/null && copyScript
 
 commitCommonFiles
 
-type commitFiles &> /dev/null && commitFiles
+# type commitFiles &> /dev/null && commitFiles
+
+# createPipeline
 
-createPipeline
+# type addPipelineVariables &> /dev/null && addPipelineVariables
 
-type addPipelineVariables &> /dev/null && addPipelineVariables
+# addCommonPipelineVariables
 
-addCommonPipelineVariables
+# createPR
 
-createPR
+clearPollution

From bea78173704c13dcd4063c8a6d99736d585bf57f Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 18 May 2022 19:23:42 +0200
Subject: [PATCH 03/15] checking for errors and syntax cleanup

---
 .../azure-devops/pipeline_generator.sh        | 41 +++++++++++++------
 1 file changed, 29 insertions(+), 12 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index 1692d0be4..359efc1fe 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -221,8 +221,19 @@ function createPipeline {
     echo -ne ${white}
 
     # Create Azure Pipeline
-    pipelineResult=$(az pipelines create --name $pipelineName --yml-path "${pipelinePath}/${yamlFile}" --skip-first-run true)
+    
+    pipelineResult=$(az pipelines create --name $pipelineName --yml-path "${pipelinePath}/${yamlFile}" --skip-first-run true) || {
+        # if the script fails, clean pollution
+        echo "There was an error creating the pipeline! Please check if you specified the name and got all settings right!"
 
+        clearPollution
+
+        exit 127
+    }
+
+    pipelineId=$(echo "$pipelineResult" | python -c "import sys, json; print(json.load(sys.stdin)['id'])")
+
+    # pipeline got created successfully     
     undoLevel=3
 }
 
@@ -233,7 +244,15 @@ function addCommonPipelineVariables {
         echo "Skipping creation of the variable artifactPath as the flag has not been used."
     else
         # Add the extra artifact to store variable.
-        variableResult=$(az pipelines variable create --name "artifactPath" --pipeline-name "$pipelineName" --value "${artifactPath}")
+        variableResult=$(az pipelines variable create --name "artifactPath" --pipeline-name "$pipelineName" --value "${artifactPath}") || {
+            # if the variable-creation fails, clean up
+
+            echo "There was an error creating the pipeline-artifact-path variable!. Exiting"
+
+            clearPollution
+
+            exit 127
+        }
     fi
 }
 
@@ -324,9 +343,9 @@ function clearPollution {
     #    clearVariables
     #}
 
-    #if (${undoLevel} > 2) {
-    #    clearPipeline
-    #}
+    if [ ${undoLevel} > 2 ]; then
+        clearPipeline
+    fi
 
     if [ ${undoLevel} > 1 ]; then
         clearRemoteBranches
@@ -355,14 +374,12 @@ type copyScript &> /dev/null && copyScript
 
 commitCommonFiles
 
-# type commitFiles &> /dev/null && commitFiles
-
-# createPipeline
+type commitFiles &> /dev/null && commitFiles
 
-# type addPipelineVariables &> /dev/null && addPipelineVariables
+createPipeline
 
-# addCommonPipelineVariables
+type addPipelineVariables &> /dev/null && addPipelineVariables
 
-# createPR
+addCommonPipelineVariables
 
-clearPollution
+createPR

From 12069359bbbf83ada9ef46703c1c6dcc6b8ccfcc Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Thu, 19 May 2022 08:06:45 +0200
Subject: [PATCH 04/15] fixed a bug in the undoStage-Comparison

---
 .../azure-devops/pipeline_generator.sh        | 49 ++++++++++---------
 1 file changed, 27 insertions(+), 22 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index 359efc1fe..5adb39630 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -44,7 +44,7 @@ red='\e[0;31m'
 commonTemplatesPath="scripts/pipelines/azure-devops/templates/common"
 
 # Undo-Level for the script. Used to clean up the resources in case of a failure
-undoLevel=0
+undoStage=0
 
 function help {
     echo ""
@@ -166,7 +166,7 @@ function createNewBranch {
     git checkout -b ${sourceBranch}
 
     # clear local-branches
-    undoLevel=1
+    undoStage=1
 }
 
 function copyYAMLFile {
@@ -213,7 +213,7 @@ function commitCommonFiles {
     git push -u origin ${sourceBranch}
 
     # clean up remote-branches
-    undoLevel=2
+    undoStage=2
 }
 
 function createPipeline {
@@ -231,10 +231,12 @@ function createPipeline {
         exit 127
     }
 
+    echo "Pipelineresult $pipelineResult"
+
     pipelineId=$(echo "$pipelineResult" | python -c "import sys, json; print(json.load(sys.stdin)['id'])")
 
     # pipeline got created successfully     
-    undoLevel=3
+    undoStage=3
 }
 
 # Function that adds the variables to be used in the pipeline.
@@ -244,7 +246,7 @@ function addCommonPipelineVariables {
         echo "Skipping creation of the variable artifactPath as the flag has not been used."
     else
         # Add the extra artifact to store variable.
-        variableResult=$(az pipelines variable create --name "artifactPath" --pipeline-name "$pipelineName" --value "${artifactPath}") || {
+        variableResult=$(az pipelines variable create --pipeline-name "$pipelineName" --value "${artifactPath}") || {
             # if the variable-creation fails, clean up
 
             echo "There was an error creating the pipeline-artifact-path variable!. Exiting"
@@ -306,7 +308,7 @@ function createPR {
     fi
 }
 
-function clearLocalBranches {
+function removeLocalBranches {
     cd "${localDirectory}"
 
     git checkout $originalBranch
@@ -314,7 +316,7 @@ function clearLocalBranches {
     git branch -D ${sourceBranch}
 }
 
-function clearRemoteBranches {
+function removeRemoteBranches {
     # update list of remotes
     git fetch
 
@@ -322,7 +324,7 @@ function clearRemoteBranches {
     git push origin --delete ${sourceBranch}
 }
 
-function clearPipelineFiles {
+function removePipelineFiles {
     # clear the files
     cd "${localDirectory}"
 
@@ -331,28 +333,31 @@ function clearPipelineFiles {
     fi
 }
 
-# function clearPipeline {
-
-# }
-
+function removePipeline {
+    az pipelines delete --id ${pipelineId}
+}
 
 function clearPollution {
-    # automatically frees all resources
+    # free all resources
 
-    #if (${undoLevel} > 3) {
-    #    clearVariables
-    #}
+    if [ ${undoStage} -gt 2 ]; then
+        echo "$undoStage"
 
-    if [ ${undoLevel} > 2 ]; then
-        clearPipeline
+        echo "Clearing all pipelines!"
+
+        removePipeline
     fi
 
-    if [ ${undoLevel} > 1 ]; then
-        clearRemoteBranches
+    if [ ${undoStage} -gt 1 ]; then
+        echo "Removing all remote branches!"
+
+        removeRemoteBranches
     fi
 
-    if [ ${undoLevel} > 0 ]; then 
-        clearLocalBranches
+    if [ ${undoStage} -gt 0 ]; then 
+        echo "Removing all local branches!"
+
+        removeLocalBranches
     fi
 }  
 

From 61df1f42bec1ffabb4d2a16e3e633c694a3d0971 Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Thu, 19 May 2022 08:17:17 +0200
Subject: [PATCH 05/15] comment clean up

---
 scripts/pipelines/azure-devops/pipeline_generator.sh | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index 5adb39630..490322271 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -155,14 +155,14 @@ function createNewBranch {
     echo -e "${green}Creating the new branch: ${sourceBranch}..."
     echo -ne ${white}
 
-    # Create the new branch.
     cd "${localDirectory}"
 
-    # store current branch 
+    # store current branch into a variable (only used for rollback/undo) 
     originalBranch=$(git branch --show-current)
 
     [ $? != "0" ] && echo -e "${red}The local directory: '${localDirectory}' cannot be found, please check the path." && exit 1
 
+    # Create the new branch.
     git checkout -b ${sourceBranch}
 
     # clear local-branches
@@ -309,6 +309,7 @@ function createPR {
 }
 
 function removeLocalBranches {
+    # visit the directory and switch to the branch which was present before
     cd "${localDirectory}"
 
     git checkout $originalBranch
@@ -325,7 +326,7 @@ function removeRemoteBranches {
 }
 
 function removePipelineFiles {
-    # clear the files
+    # clear the generated pipeline-files
     cd "${localDirectory}"
 
     if [ -d "./pipelines" ]; then
@@ -343,7 +344,7 @@ function clearPollution {
     if [ ${undoStage} -gt 2 ]; then
         echo "$undoStage"
 
-        echo "Clearing all pipelines!"
+        echo "Removing all pipelines!"
 
         removePipeline
     fi

From 85731af29e41420e0ee72087be0c3fa344d23d92 Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 25 May 2022 09:03:42 +0200
Subject: [PATCH 06/15] Update pipeline_generator.sh

---
 .../pipelines/azure-devops/pipeline_generator.sh   | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index 490322271..be5f0b692 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -230,9 +230,7 @@ function createPipeline {
 
         exit 127
     }
-
-    echo "Pipelineresult $pipelineResult"
-
+    
     pipelineId=$(echo "$pipelineResult" | python -c "import sys, json; print(json.load(sys.stdin)['id'])")
 
     # pipeline got created successfully     
@@ -318,6 +316,8 @@ function removeLocalBranches {
 }
 
 function removeRemoteBranches {
+    cd "${localDirectory}"
+
     # update list of remotes
     git fetch
 
@@ -342,15 +342,15 @@ function clearPollution {
     # free all resources
 
     if [ ${undoStage} -gt 2 ]; then
-        echo "$undoStage"
-
-        echo "Removing all pipelines!"
+        echo "Removing pipeline with id: ${pipelineId}"
 
         removePipeline
     fi
 
     if [ ${undoStage} -gt 1 ]; then
-        echo "Removing all remote branches!"
+        echo "Removing all pipeline-files and remote branches!"
+
+        removePipelineFiles
 
         removeRemoteBranches
     fi

From 1562b7a19c8f4b7014857bc40fcc627ad65003aa Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 1 Jun 2022 18:49:40 +0200
Subject: [PATCH 07/15] rename pipeline and abandon pull request

---
 .../pipelines/azure-devops/pipeline_generator.sh   | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index be5f0b692..a1d9909f0 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -165,7 +165,7 @@ function createNewBranch {
     # Create the new branch.
     git checkout -b ${sourceBranch}
 
-    # clear local-branches
+    # set undo-stage (clear local branches)
     undoStage=1
 }
 
@@ -226,7 +226,7 @@ function createPipeline {
         # if the script fails, clean pollution
         echo "There was an error creating the pipeline! Please check if you specified the name and got all settings right!"
 
-        clearPollution
+        undoPreviousSteps
 
         exit 127
     }
@@ -249,7 +249,7 @@ function addCommonPipelineVariables {
 
             echo "There was an error creating the pipeline-artifact-path variable!. Exiting"
 
-            clearPollution
+            undoPreviousSteps
 
             exit 127
         }
@@ -338,7 +338,11 @@ function removePipeline {
     az pipelines delete --id ${pipelineId}
 }
 
-function clearPollution {
+function abandonPullRequest {
+    az repos pr update --id id --status abandoned
+}
+
+function undoPreviousSteps {
     # free all resources
 
     if [ ${undoStage} -gt 2 ]; then
@@ -351,7 +355,7 @@ function clearPollution {
         echo "Removing all pipeline-files and remote branches!"
 
         removePipelineFiles
-
+        removePullRequest
         removeRemoteBranches
     fi
 

From 71822449b0b8cbe40472efef0c75cac4bdffa25e Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Fri, 3 Jun 2022 16:39:25 +0200
Subject: [PATCH 08/15] case sensitiv file removal

---
 .../azure-devops/pipeline_generator.sh        | 20 +++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index a1d9909f0..4fc31674c 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -244,7 +244,7 @@ function addCommonPipelineVariables {
         echo "Skipping creation of the variable artifactPath as the flag has not been used."
     else
         # Add the extra artifact to store variable.
-        variableResult=$(az pipelines variable create --pipeline-name "$pipelineName" --value "${artifactPath}") || {
+        $(az pipelines variable create --pipeline-name "$pipelineName" --value "${artifactPath}") || {
             # if the variable-creation fails, clean up
 
             echo "There was an error creating the pipeline-artifact-path variable!. Exiting"
@@ -330,7 +330,23 @@ function removePipelineFiles {
     cd "${localDirectory}"
 
     if [ -d "./pipelines" ]; then
-        rm -rf ./pipelines
+
+        case $configFile in 
+            *"build"*)
+                rm -rf "build"*;;
+            *"common"*)
+                rm -rf "common"*;;
+            *"library-package"*)
+                rm -rf "library-package"*;;
+            *"package"*)
+                rm -rf "package"*;;
+            *"quality"*)
+                rm -rf "quality"*;;
+            *"test"*)
+                rm -rf "test";;            
+            *)  
+                echo "Can´t remove files matching the string $configFile";;
+        esac              
     fi
 }
 

From c94f7180a64d94cbebd7d38aeb0180500ffd2ff3 Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Fri, 3 Jun 2022 17:18:01 +0200
Subject: [PATCH 09/15] added Timos suggestions

---
 .../azure-devops/pipeline_generator.sh        | 26 +++++++++++--------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index 4fc31674c..f146038c4 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -43,9 +43,6 @@ red='\e[0;31m'
 # Common var
 commonTemplatesPath="scripts/pipelines/azure-devops/templates/common"
 
-# Undo-Level for the script. Used to clean up the resources in case of a failure
-undoStage=0
-
 function help {
     echo ""
     echo "Generates a pipeline on Azure DevOps based on the given definition."
@@ -329,7 +326,8 @@ function removePipelineFiles {
     # clear the generated pipeline-files
     cd "${localDirectory}"
 
-    if [ -d "./pipelines" ]; then
+    if [ $pipelinesDirectoryAlreadyExists ]; then
+        cd "./pipelines"
 
         case $configFile in 
             *"build"*)
@@ -343,10 +341,12 @@ function removePipelineFiles {
             *"quality"*)
                 rm -rf "quality"*;;
             *"test"*)
-                rm -rf "test";;            
+                rm -rf "test"*;;            
             *)  
                 echo "Can´t remove files matching the string $configFile";;
         esac              
+    else 
+        rm -rf "./pipelines"
     fi
 }
 
@@ -354,16 +354,11 @@ function removePipeline {
     az pipelines delete --id ${pipelineId}
 }
 
-function abandonPullRequest {
-    az repos pr update --id id --status abandoned
-}
-
 function undoPreviousSteps {
     # free all resources
 
     if [ ${undoStage} -gt 2 ]; then
         echo "Removing pipeline with id: ${pipelineId}"
-
         removePipeline
     fi
 
@@ -371,7 +366,6 @@ function undoPreviousSteps {
         echo "Removing all pipeline-files and remote branches!"
 
         removePipelineFiles
-        removePullRequest
         removeRemoteBranches
     fi
 
@@ -384,6 +378,16 @@ function undoPreviousSteps {
 
 if [[ "$help" == "true" ]]; then help; fi
 
+# check if the .pipeline-directory already existed
+pipelinesDirectoryAlreadyExists=false
+
+if [ -d "./.pipelines" ]; then
+    pipelinesDirectoryAlreadyExists=true
+fi;
+
+# Undo-Level for the script. Used to clean up the resources in case of a failure
+undoStage=0
+
 importConfigFile
 
 checkInstallations

From 4a5107f2059ba8853d9aa44ae37c3b901995239b Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 8 Jun 2022 08:05:14 +0200
Subject: [PATCH 10/15] file removal

---
 scripts/pipelines/azure-devops/pipeline_generator.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index f146038c4..b4d6ac015 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -309,6 +309,7 @@ function removeLocalBranches {
 
     git checkout $originalBranch
 
+    # delete branch
     git branch -D ${sourceBranch}
 }
 
@@ -357,6 +358,8 @@ function removePipeline {
 function undoPreviousSteps {
     # free all resources
 
+    removePipelineFiles
+
     if [ ${undoStage} -gt 2 ]; then
         echo "Removing pipeline with id: ${pipelineId}"
         removePipeline

From e817cc9b69e3df340c6f3f2be439c798c7354f8f Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 8 Jun 2022 08:44:13 +0200
Subject: [PATCH 11/15] no need to clean files manually since git will do this

---
 .../azure-devops/pipeline_generator.sh        | 43 ++++---------------
 1 file changed, 8 insertions(+), 35 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index b4d6ac015..5ef3d50d0 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -323,42 +323,12 @@ function removeRemoteBranches {
     git push origin --delete ${sourceBranch}
 }
 
-function removePipelineFiles {
-    # clear the generated pipeline-files
-    cd "${localDirectory}"
-
-    if [ $pipelinesDirectoryAlreadyExists ]; then
-        cd "./pipelines"
-
-        case $configFile in 
-            *"build"*)
-                rm -rf "build"*;;
-            *"common"*)
-                rm -rf "common"*;;
-            *"library-package"*)
-                rm -rf "library-package"*;;
-            *"package"*)
-                rm -rf "package"*;;
-            *"quality"*)
-                rm -rf "quality"*;;
-            *"test"*)
-                rm -rf "test"*;;            
-            *)  
-                echo "Can´t remove files matching the string $configFile";;
-        esac              
-    else 
-        rm -rf "./pipelines"
-    fi
-}
-
 function removePipeline {
     az pipelines delete --id ${pipelineId}
 }
 
 function undoPreviousSteps {
-    # free all resources
-
-    removePipelineFiles
+    # undo all actions taken
 
     if [ ${undoStage} -gt 2 ]; then
         echo "Removing pipeline with id: ${pipelineId}"
@@ -366,9 +336,8 @@ function undoPreviousSteps {
     fi
 
     if [ ${undoStage} -gt 1 ]; then
-        echo "Removing all pipeline-files and remote branches!"
+        echo "Removing all remote branches!"
 
-        removePipelineFiles
         removeRemoteBranches
     fi
 
@@ -399,11 +368,15 @@ obtainHangarPath
 
 createNewBranch
 
-copyYAMLFile
+copyYAMLFile 
 
 copyCommonScript
 
-type copyScript &> /dev/null && copyScript
+type copyScript &> /dev/null && copyScript || {
+    undoPreviousSteps
+    
+    exit 127
+}
 
 commitCommonFiles
 

From fa45009c50f1deb31c8b27a9bc6a643e8d1330b9 Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Fri, 24 Jun 2022 13:51:44 +0200
Subject: [PATCH 12/15] unused variable

---
 scripts/pipelines/azure-devops/pipeline_generator.sh | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index 5ef3d50d0..b45bbd121 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -350,13 +350,6 @@ function undoPreviousSteps {
 
 if [[ "$help" == "true" ]]; then help; fi
 
-# check if the .pipeline-directory already existed
-pipelinesDirectoryAlreadyExists=false
-
-if [ -d "./.pipelines" ]; then
-    pipelinesDirectoryAlreadyExists=true
-fi;
-
 # Undo-Level for the script. Used to clean up the resources in case of a failure
 undoStage=0
 

From e0cdc15ac9af5bee5f64ab09ead62130a085ce4b Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 6 Jul 2022 15:34:16 +0200
Subject: [PATCH 13/15] Update pipeline_generator.sh

---
 scripts/pipelines/azure-devops/pipeline_generator.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index 6604ba13b..b664704ab 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -221,6 +221,8 @@ obtainHangarPath
 
 createNewBranch
 
+undoStage=1
+
 copyYAMLFile 
 
 copyCommonScript

From 3ae8b43d5aaf481eb7f17f1f0cef454adf933100 Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 6 Jul 2022 15:36:52 +0200
Subject: [PATCH 14/15] further workaround the changes

---
 scripts/pipelines/azure-devops/pipeline_generator.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index b664704ab..faa8e20b3 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -221,6 +221,11 @@ obtainHangarPath
 
 createNewBranch
 
+cd "${localDirectory}"
+
+# store current branch into a variable (only used for rollback/undo) 
+originalBranch=$(git branch --show-current)
+
 undoStage=1
 
 copyYAMLFile 

From 0012ee0329f698b2d28286748c9c025624e3c0d0 Mon Sep 17 00:00:00 2001
From: BenjaminE <benjamin.ehnes@fh-erfurt.de>
Date: Wed, 6 Jul 2022 16:28:45 +0200
Subject: [PATCH 15/15] Update pipeline_generator.sh

---
 .../pipelines/azure-devops/pipeline_generator.sh | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/scripts/pipelines/azure-devops/pipeline_generator.sh b/scripts/pipelines/azure-devops/pipeline_generator.sh
index faa8e20b3..62b8af3f1 100644
--- a/scripts/pipelines/azure-devops/pipeline_generator.sh
+++ b/scripts/pipelines/azure-devops/pipeline_generator.sh
@@ -206,6 +206,8 @@ if [[ "$help" == "true" ]]; then help; fi
 # Undo-Level for the script. Used to clean up the resources in case of a failure
 undoStage=0
 
+obtainHangarPath
+
 # Load common functions
 . "$hangarPath/scripts/pipelines/common/pipeline_generator.lib"
 
@@ -217,18 +219,16 @@ importConfigFile
 
 checkInstallations
 
-obtainHangarPath
-
-createNewBranch
-
 cd "${localDirectory}"
 
 # store current branch into a variable (only used for rollback/undo) 
 originalBranch=$(git branch --show-current)
 
+createNewBranch
+
 undoStage=1
 
-copyYAMLFile 
+copyYAMLFile
 
 copyCommonScript
 
@@ -243,7 +243,11 @@ commitCommonFiles
 # clean up remote-branches
 undoStage=2
 
-type commitFiles &> /dev/null && commitFiles
+type commitFiles &> /dev/null && commitFiles || {
+    undoPreviousSteps
+
+    exit 127
+}
 
 createPipeline