public static GitRepository TryParse(string directory)
{
var rootDirectory = FileSystemTasks.SearchDirectory(directory, x => x.GetDirectories(".git").Any());
ControlFlow.Assert(rootDirectory != null, $"Could not locate '.git' directory while traversing up from '{directory}'.");
var gitDirectory = Path.Combine(rootDirectory, ".git");
var headFile = Path.Combine(gitDirectory, "HEAD");
ControlFlow.Assert(File.Exists(headFile), $"File.Exists({headFile})");
var headFileContent = File.ReadAllLines(headFile);
var head = headFileContent.First();
var configFile = Path.Combine(gitDirectory, "config");
var configFileContent = File.ReadAllLines(configFile);
var url = configFileContent
.Select(x => x.Trim())
.SkipWhile(x => x != "[remote \"origin\"]")
.Skip(count: 1)
.TakeWhile(x => !x.StartsWith("["))
.Single(x => x.StartsWithOrdinalIgnoreCase("url = "))
.Split('=')[1];
var match = new[]
{
@"git@(?<endpoint>.*):(?<owner>.*)/(?<name>.*?)(\.git)?$",
@"https://(?<endpoint>.*)/(?<owner>.*)/(?<name>.*?)(\.git)?$"
}.Select(x => Regex.Match(url, x)).FirstOrDefault(x => x.Success);
if (match == null)
{
return(null);
}
var branchMatch = Regex.Match(head, "^ref: refs/heads/(?<branch>.*)");
return(new GitRepository
{
Endpoint = match.Groups["endpoint"].Value,
Owner = match.Groups["owner"].Value,
Name = match.Groups["name"].Value,
Head = head,
Branch = branchMatch.Success ? branchMatch.Groups["branch"].Value : null
});
}
public static GitRepository FromLocalDirectory(string directory, string branch = null, string remote = "origin")
{
var rootDirectory = FileSystemTasks.SearchDirectory(directory, x => x.GetDirectories(".git").Any());
if (rootDirectory == null)
{
return(null);
}
var gitDirectory = Path.Combine(rootDirectory, ".git");
var headFile = Path.Combine(gitDirectory, "HEAD");
ControlFlow.Assert(File.Exists(headFile), $"File.Exists({headFile})");
var headFileContent = File.ReadAllLines(headFile);
var head = headFileContent.First();
var branchMatch = Regex.Match(head, "^ref: refs/heads/(?<branch>.*)");
var configFile = Path.Combine(gitDirectory, "config");
var configFileContent = File.ReadAllLines(configFile);
var url = configFileContent
.Select(x => x.Trim())
.SkipWhile(x => x != $"[remote \"{remote}\"]")
.Skip(count: 1)
.TakeWhile(x => !x.StartsWith("["))
.SingleOrDefault(x => x.StartsWithOrdinalIgnoreCase("url = "))
?.Split('=')[1];
if (url == null)
{
return(null);
}
var(endpoint, identifier) = ParseUrl(url);
return(new GitRepository(
endpoint,
identifier,
rootDirectory,
head,
branch ?? (branchMatch.Success ? branchMatch.Groups["branch"].Value : null)));
}