/// <summary>
/// Convert a single Azure DevOps Pipeline task to a GitHub Actions task
/// </summary>
/// <param name="input">Yaml to convert</param>
/// <returns>Converion object, with original yaml, processed yaml, and comments on the conversion</returns>
public ConversionResponse ConvertAzurePipelineTaskToGitHubActionTask(string input)
{
string yaml = "";
string processedInput = ConversionUtility.StepsPreProcessing(input);
GitHubActions.Step gitHubActionStep = new GitHubActions.Step();
//Process the YAML for the individual job
AzurePipelines.Job azurePipelinesJob = GenericObjectSerialization.DeserializeYaml <AzurePipelines.Job>(processedInput);
if (azurePipelinesJob != null && azurePipelinesJob.steps != null && azurePipelinesJob.steps.Length > 0)
{
//As we needed to create an entire (but minimal) pipelines job, we need to now extract the step for processing
StepsProcessing stepsProcessing = new StepsProcessing();
gitHubActionStep = stepsProcessing.ProcessStep(azurePipelinesJob.steps[0]);
//Find all variables in this text block, we need this for a bit later
VariablesProcessing vp = new VariablesProcessing(_verbose);
List <string> variableList = vp.SearchForVariables(processedInput);
//Create the GitHub YAML and apply some adjustments
if (gitHubActionStep != null)
{
//add the step into a github job so it renders correctly
GitHubActions.Job gitHubJob = new GitHubActions.Job
{
steps = new GitHubActions.Step[1] //create an array of size 1
};
//Load the step into the single item array
gitHubJob.steps[0] = gitHubActionStep;
//Finally, we can serialize the job back to yaml
yaml = GitHubActionsSerialization.SerializeJob(gitHubJob, variableList);
}
}
//Load failed tasks and comments for processing
List <string> allComments = new List <string>();
if (gitHubActionStep != null)
{
allComments.Add(gitHubActionStep.step_message);
}
//Return the final conversion result, with the original (pipeline) yaml, processed (actions) yaml, and any comments
return(new ConversionResponse
{
pipelinesYaml = input,
actionsYaml = yaml,
comments = allComments
});
}
public GitHubActions.Job ProcessJob(AzurePipelines.Job job, AzurePipelines.Resources resources)
{
GeneralProcessing generalProcessing = new GeneralProcessing(_verbose);
VariablesProcessing vp = new VariablesProcessing(_verbose);
StepsProcessing sp = new StepsProcessing();
GitHubActions.Job newJob = new GitHubActions.Job
{
name = job.displayName,
needs = job.dependsOn,
_if = ConditionsProcessing.TranslateConditions(job.condition),
runs_on = generalProcessing.ProcessPool(job.pool),
strategy = generalProcessing.ProcessStrategy(job.strategy),
container = generalProcessing.ProcessContainer(resources),
env = vp.ProcessSimpleVariables(job.variables),
timeout_minutes = job.timeoutInMinutes,
steps = sp.AddSupportingSteps(job.steps)
};
MatrixVariableName = generalProcessing.MatrixVariableName;
VariableList = vp.VariableList;
if (newJob.steps == null & job.template != null)
{
//Initialize the array with no items
job.steps = new AzurePipelines.Step[0];
//Process the steps, adding the default checkout step
newJob.steps = sp.AddSupportingSteps(job.steps, true);
//TODO: There is currently no conversion path for templates
newJob.job_message += "Note: Azure DevOps template does not have an equivalent in GitHub Actions yet";
}
else if (newJob.steps == null && job.strategy?.runOnce?.deploy?.steps != null)
{
//Initialize the array with no items
job.steps = new AzurePipelines.Step[0];
//Process the steps, adding the default checkout step
newJob.steps = sp.AddSupportingSteps(job.strategy?.runOnce?.deploy?.steps, false);
//TODO: There is currently no conversion path for templates
newJob.job_message += "Note: Azure DevOps strategy>runOnce>deploy does not have an equivalent in GitHub Actions yet";
}
if (job.environment != null)
{
newJob.job_message += "Note: Azure DevOps job environment does not have an equivalent in GitHub Actions yet";
}
if (job.continueOnError == true)
{
newJob.continue_on_error = job.continueOnError;
}
return(newJob);
}
/// <summary>
/// Process an Azure DevOps Pipeline, converting it to a GitHub Action
/// </summary>
/// <param name="azurePipeline">Azure DevOps Pipeline object</param>
/// <param name="simpleTrigger">When the YAML has a simple trigger, (String[]). Can be null</param>
/// <param name="complexTrigger">When the YAML has a complex trigger. Can be null</param>
/// <returns>GitHub Actions object</returns>
public GitHubActionsRoot ProcessPipeline(AzurePipelinesRoot <TTriggers, TVariables> azurePipeline,
string[] simpleTrigger, AzurePipelines.Trigger complexTrigger,
Dictionary <string, string> simpleVariables, AzurePipelines.Variable[] complexVariables)
{
VariableList = new List <string>();
GeneralProcessing generalProcessing = new GeneralProcessing(_verbose);
GitHubActionsRoot gitHubActions = new GitHubActionsRoot();
//Name
if (azurePipeline.name != null)
{
gitHubActions.name = azurePipeline.name;
}
//Container
if (azurePipeline.container != null)
{
gitHubActions.messages.Add("TODO: Container conversion not yet done, we need help!: https://github.com/samsmithnz/AzurePipelinesToGitHubActionsConverter/issues/39");
}
//Triggers for pushs
TriggerProcessing tp = new TriggerProcessing(_verbose);
if (azurePipeline.trigger != null)
{
if (complexTrigger != null)
{
gitHubActions.on = tp.ProcessComplexTrigger(complexTrigger);
}
else if (simpleTrigger != null)
{
gitHubActions.on = tp.ProcessSimpleTrigger(simpleTrigger);
}
}
//Triggers for pull requests
if (azurePipeline.pr != null)
{
GitHubActions.Trigger pr = tp.ProcessPullRequest(azurePipeline.pr);
if (gitHubActions.on == null)
{
gitHubActions.on = pr;
}
else
{
gitHubActions.on.pull_request = pr.pull_request;
}
}
//pool/demands
if (azurePipeline.pool != null && azurePipeline.pool.demands != null)
{
gitHubActions.messages.Add("Note: GitHub Actions does not have a 'demands' command on 'runs-on' yet");
}
//schedules
if (azurePipeline.schedules != null)
{
string[] schedules = tp.ProcessSchedules(azurePipeline.schedules);
if (gitHubActions.on == null)
{
gitHubActions.on = new GitHubActions.Trigger();
}
gitHubActions.on.schedule = schedules;
}
//Resources
if (azurePipeline.resources != null)
{
//Note: Containers is in the jobs - this note should be removed once pipeliens and repositories is moved too
//TODO: There is currently no conversion path for pipelines
if (azurePipeline.resources.pipelines != null)
{
gitHubActions.messages.Add("TODO: Resource pipelines conversion not yet done: https://github.com/samsmithnz/AzurePipelinesToGitHubActionsConverter/issues/8");
if (azurePipeline.resources.pipelines.Length > 0)
{
if (azurePipeline.resources.pipelines[0].pipeline != null)
{
ConversionUtility.WriteLine("pipeline: " + azurePipeline.resources.pipelines[0].pipeline, _verbose);
}
if (azurePipeline.resources.pipelines[0].project != null)
{
ConversionUtility.WriteLine("project: " + azurePipeline.resources.pipelines[0].project, _verbose);
}
if (azurePipeline.resources.pipelines[0].source != null)
{
ConversionUtility.WriteLine("source: " + azurePipeline.resources.pipelines[0].source, _verbose);
}
if (azurePipeline.resources.pipelines[0].branch != null)
{
ConversionUtility.WriteLine("branch: " + azurePipeline.resources.pipelines[0].branch, _verbose);
}
if (azurePipeline.resources.pipelines[0].version != null)
{
ConversionUtility.WriteLine("version: " + azurePipeline.resources.pipelines[0].version, _verbose);
}
if (azurePipeline.resources.pipelines[0].trigger != null)
{
if (azurePipeline.resources.pipelines[0].trigger.autoCancel)
{
ConversionUtility.WriteLine("autoCancel: " + azurePipeline.resources.pipelines[0].trigger.autoCancel, _verbose);
}
if (azurePipeline.resources.pipelines[0].trigger.batch)
{
ConversionUtility.WriteLine("batch: " + azurePipeline.resources.pipelines[0].trigger.batch, _verbose);
}
}
}
}
//TODO: There is currently no conversion path for repositories
if (azurePipeline.resources.repositories != null)
{
gitHubActions.messages.Add("TODO: Resource repositories conversion not yet done: https://github.com/samsmithnz/AzurePipelinesToGitHubActionsConverter/issues/8");
if (azurePipeline.resources.repositories.Length > 0)
{
if (azurePipeline.resources.repositories[0].repository != null)
{
ConversionUtility.WriteLine("repository: " + azurePipeline.resources.repositories[0].repository, _verbose);
}
if (azurePipeline.resources.repositories[0].type != null)
{
ConversionUtility.WriteLine("type: " + azurePipeline.resources.repositories[0].type, _verbose);
}
if (azurePipeline.resources.repositories[0].name != null)
{
ConversionUtility.WriteLine("name: " + azurePipeline.resources.repositories[0].name, _verbose);
}
if (azurePipeline.resources.repositories[0]._ref != null)
{
ConversionUtility.WriteLine("ref: " + azurePipeline.resources.repositories[0]._ref, _verbose);
}
if (azurePipeline.resources.repositories[0].endpoint != null)
{
ConversionUtility.WriteLine("endpoint: " + azurePipeline.resources.repositories[0].endpoint, _verbose);
}
if (azurePipeline.resources.repositories[0].connection != null)
{
ConversionUtility.WriteLine("connection: " + azurePipeline.resources.repositories[0].connection, _verbose);
}
if (azurePipeline.resources.repositories[0].source != null)
{
ConversionUtility.WriteLine("source: " + azurePipeline.resources.repositories[0].source, _verbose);
}
}
}
}
//Stages (Note: stages are not yet present in actions, we are merging them into one giant list of jobs, appending the stage name to jobs to keep names unique)
if (azurePipeline.stages != null)
{
//Count the number of jobs and initialize the jobs array with that number
int jobCounter = 0;
foreach (Stage stage in azurePipeline.stages)
{
if (stage.jobs != null)
{
jobCounter += stage.jobs.Length;
}
}
azurePipeline.jobs = new AzurePipelines.Job[jobCounter];
//We are going to take each stage and assign it a set of jobs
int currentIndex = 0;
foreach (Stage stage in azurePipeline.stages)
{
if (stage.jobs != null)
{
int j = 0;
for (int i = 0; i < stage.jobs.Length; i++)
{
//Get the job name
string jobName = ConversionUtility.GenerateJobName(stage.jobs[i], currentIndex);
//Rename the job, using the stage name as prefix, so that we keep the job names unique
stage.jobs[j].job = stage.stage + "_Stage_" + jobName;
ConversionUtility.WriteLine("This variable is not needed in actions: " + stage.displayName, _verbose);
azurePipeline.jobs[currentIndex] = stage.jobs[j];
azurePipeline.jobs[currentIndex].condition = stage.condition;
//Move over the variables, the stage variables will need to be applied to each job
if (stage.variables != null && stage.variables.Count > 0)
{
azurePipeline.jobs[currentIndex].variables = new Dictionary <string, string>();
foreach (KeyValuePair <string, string> stageVariable in stage.variables)
{
azurePipeline.jobs[currentIndex].variables.Add(stageVariable.Key, stageVariable.Value);
}
}
j++;
currentIndex++;
}
}
}
}
//Jobs (when no stages are defined)
if (azurePipeline.jobs != null)
{
//If there is a parent strategy, and no child strategy, load in the parent
//This is not perfect...
if (azurePipeline.strategy != null)
{
foreach (AzurePipelines.Job item in azurePipeline.jobs)
{
if (item.strategy == null)
{
item.strategy = azurePipeline.strategy;
}
}
}
gitHubActions.jobs = ProcessJobs(azurePipeline.jobs, azurePipeline.resources);
if (gitHubActions.jobs.Count == 0)
{
gitHubActions.messages.Add("Note that although having no jobs is valid YAML, it is not a valid GitHub Action.");
}
}
//Pool + Steps (When there are no jobs defined)
if ((azurePipeline.pool != null && azurePipeline.jobs == null) || (azurePipeline.steps != null && azurePipeline.steps.Length > 0))
{
//Steps only have one job, so we just create it here
StepsProcessing sp = new StepsProcessing();
gitHubActions.jobs = new Dictionary <string, GitHubActions.Job>
{
{
"build",
new GitHubActions.Job
{
runs_on = generalProcessing.ProcessPool(azurePipeline.pool),
strategy = generalProcessing.ProcessStrategy(azurePipeline.strategy),
container = generalProcessing.ProcessContainer(azurePipeline.resources),
//resources = ProcessResources(azurePipeline.resources),
steps = sp.AddSupportingSteps(azurePipeline.steps)
}
}
};
MatrixVariableName = generalProcessing.MatrixVariableName;
}
//Variables
VariablesProcessing vp = new VariablesProcessing(_verbose);
if (azurePipeline.variables != null)
{
if (complexVariables != null)
{
gitHubActions.env = vp.ProcessComplexVariables(complexVariables);
VariableList.AddRange(vp.VariableList);
}
else if (simpleVariables != null)
{
gitHubActions.env = vp.ProcessSimpleVariables(simpleVariables);
VariableList.AddRange(vp.VariableList);
}
}
else if (azurePipeline.parameters != null)
{
//For now, convert the parameters to variables
gitHubActions.env = vp.ProcessSimpleVariables(azurePipeline.parameters);
}
return(gitHubActions);
}
//process the steps
private GitHubActions.Step[] ProcessSteps(AzurePipelines.Step[] steps, bool addCheckoutStep = true)
{
StepsProcessing stepsProcessing = new StepsProcessing();
GitHubActions.Step[] newSteps = null;
if (steps != null)
{
//Start by scanning all of the steps, to see if we need to insert additional tasks
int stepAdjustment = 0;
bool addJavaSetupStep = false;
bool addGradleSetupStep = false;
bool addAzureLoginStep = false;
bool addMSSetupStep = false;
string javaVersion = null;
//If the code needs a Checkout step, add it first
if (addCheckoutStep == true)
{
stepAdjustment++; // we are inserting a step and need to start moving steps 1 place into the array
}
//Loop through the steps to see if we need other tasks inserted in for specific circumstances
foreach (AzurePipelines.Step step in steps)
{
if (step.task != null)
{
switch (step.task)
{
//If we have an Java based step, we will need to add a Java setup step
case "Ant@1":
case "Maven@3":
if (addJavaSetupStep == false)
{
addJavaSetupStep = true;
stepAdjustment++;
javaVersion = stepsProcessing.GetStepInput(step, "jdkVersionOption");
}
break;
//Needs a the Java step and an additional Gradle step
case "Gradle@2":
if (addJavaSetupStep == false)
{
addJavaSetupStep = true;
stepAdjustment++;
//Create the java step, as it doesn't exist
javaVersion = "1.8";
}
if (addGradleSetupStep == false)
{
addGradleSetupStep = true;
stepAdjustment++;
}
break;
//If we have an Azure step, we will need to add a Azure login step
case "AzureAppServiceManage@0":
case "AzureResourceGroupDeployment@2":
case "AzureRmWebAppDeployment@3":
if (addAzureLoginStep == false)
{
addAzureLoginStep = true;
stepAdjustment++;
}
break;
case "VSBuild@1":
if (addMSSetupStep == false)
{
addMSSetupStep = true;
stepAdjustment++;
}
break;
}
}
}
//Re-size the newSteps array with adjustments as needed
newSteps = new GitHubActions.Step[steps.Length + stepAdjustment];
int adjustmentsUsed = 0;
//Add the steps array
if (addCheckoutStep == true)
{
//Add the check out step to get the code
newSteps[adjustmentsUsed] = stepsProcessing.CreateCheckoutStep();
adjustmentsUsed++;
}
if (addJavaSetupStep == true)
{
//Add the JavaSetup step to the code
if (javaVersion != null)
{
newSteps[adjustmentsUsed] = stepsProcessing.CreateSetupJavaStep(javaVersion);
adjustmentsUsed++;
}
}
if (addGradleSetupStep == true)
{
//Add the Gradle setup step to the code
newSteps[adjustmentsUsed] = stepsProcessing.CreateSetupGradleStep();
adjustmentsUsed++;
}
if (addAzureLoginStep == true)
{
//Add the Azure login step to the code
newSteps[adjustmentsUsed] = stepsProcessing.CreateAzureLoginStep();
adjustmentsUsed++;
}
if (addMSSetupStep == true)
{
//Add the Azure login step to the code
newSteps[adjustmentsUsed] = stepsProcessing.CreateMSBuildSetupStep();
//adjustmentsUsed++;
}
//Translate the other steps
for (int i = stepAdjustment; i < steps.Length + stepAdjustment; i++)
{
newSteps[i] = stepsProcessing.ProcessStep(steps[i - stepAdjustment]);
}
}
return(newSteps);
}
