public async Task <List <(string fullFilePath, string fileContent)> > GetMultipleFileContentsAsync(string repositoryOwner, string repositoryName, string gitRef, List <string> fullFilePaths)
{
var tupleList = new List <(string fullFilePath, string fileContent)>();
var fileContentRequestBuilder = new StringBuilder();
// Build up the list of file content requests. This is needed because GraphQl does not allow
// the returning of multiple nodes of the same name. This loop builds up the file request json
// aliases on these nodes
for (int i = 0; i < fullFilePaths.Count; i++)
{
var fileContentRequestJson = GetFileContentRequestJson(i + 1, fullFilePaths[i]);
fileContentRequestBuilder.Append(fileContentRequestJson);
}
var query = $@"
query ($repoName:String!, $repoOwner:String!){{
repository(name:$repoName, owner: $repoOwner) {{
{fileContentRequestBuilder.ToString()}
}}
}}
";
var variables = new { repoOwner = repositoryOwner, repoName = repositoryName };
var responseBodyString = await graphQLClient.QueryAsync(query, variables).ConfigureAwait(false);
var jObject = JObject.Parse(responseBodyString);
// Parse the aliased file
for (int i = 0; i < fullFilePaths.Count; i++)
{
var fileJObject = jObject["data"]["repository"][$"file{i + 1}"];
if (fileJObject.HasValues)
{
var fileContent = fileJObject["text"].Value <string>();
tupleList.Add((fullFilePaths[i], fileContent));
}
else
{
throw new ArgumentException($"File {fullFilePaths[i]} not found when reading file contents for repo {repositoryName}. " +
$"This is likely the result of a stale file list cache for the repository");
}
}
return(tupleList);
string GetFileContentRequestJson(int index, string fullFilePath)
{
return($@"
file{index}: object(expression: ""{gitRef}:{fullFilePath}"") {{
...on Blob {{
text
}}
}}
");
}
}