public bool TryGet(GitConfigurationLevel level, GitConfigurationType type, string name, out string value)
{
value = null;
// Proceed in order from least to most specific level and read the entry value
foreach (var(_, dict) in GetDictionaries(level))
{
if (dict.TryGetValue(name, out var values))
{
if (values.Count > 1)
{
throw new Exception("Configuration entry is a multivar");
}
if (values.Count == 1)
{
value = values[0];
if (type == GitConfigurationType.Path)
{
// Create "fake" canonical path
value = value.Replace("~", CanonicalPathPrefix);
}
}
}
}
return(value != null);
}
private string GetCanonicalizeTypeArg(GitConfigurationType type)
{
if (_git.Version >= TypeConfigMinVersion)
{
return(type switch
{
GitConfigurationType.Bool => "--type=bool",
GitConfigurationType.Path => "--type=path",
_ => null
});
public IEnumerable <string> GetAll(GitConfigurationLevel level, GitConfigurationType type, string name)
{
foreach (var(_, dict) in GetDictionaries(level))
{
if (dict.TryGetValue(name, out IList <string> values))
{
foreach (string value in values)
{
yield return(value);
}
}
}
}
public IEnumerable <string> GetRegex(GitConfigurationLevel level, GitConfigurationType type, string nameRegex, string valueRegex)
{
foreach (var(_, dict) in GetDictionaries(level))
{
foreach (string key in dict.Keys)
{
if (Regex.IsMatch(key, nameRegex))
{
var values = dict[key].Where(x => Regex.IsMatch(x, valueRegex));
foreach (string value in values)
{
yield return(value);
}
}
}
}
}
public IEnumerable <string> GetRegex(GitConfigurationLevel level, GitConfigurationType type, string nameRegex, string valueRegex)
{
string levelArg = GetLevelFilterArg(level);
string typeArg = GetCanonicalizeTypeArg(type);
var gitArgs = $"config --null {levelArg} {typeArg} --get-regex {QuoteCmdArg(nameRegex)}";
if (valueRegex != null)
{
gitArgs += $" {QuoteCmdArg(valueRegex)}";
}
using (Process git = _git.CreateProcess(gitArgs))
{
git.Start();
// To avoid deadlocks, always read the output stream first and then wait
// TODO: don't read in all the data at once; stream it
string data = git.StandardOutput.ReadToEnd();
git.WaitForExit();
switch (git.ExitCode)
{
case 0: // OK
case 1: // No results
break;
default:
_trace.WriteLine($"Failed to get all multivar regex '{nameRegex}' and value regex '{valueRegex}' (exit={git.ExitCode}, level={level})");
throw GitProcess.CreateGitException(git, $"Failed to get Git configuration multi-valued entries with name regex '{nameRegex}'");
}
string[] entries = data.Split('\0');
foreach (string entry in entries)
{
string[] kvp = entry.Split(new[] { '\n' }, count: 2);
if (kvp.Length == 2)
{
yield return(kvp[1]);
}
}
}
}
public IEnumerable <string> GetAll(GitConfigurationLevel level, GitConfigurationType type, string name)
{
string levelArg = GetLevelFilterArg(level);
string typeArg = GetCanonicalizeTypeArg(type);
var gitArgs = $"config --null {levelArg} {typeArg} --get-all {QuoteCmdArg(name)}";
using (Process git = _git.CreateProcess(gitArgs))
{
git.Start();
// TODO: don't read in all the data at once; stream it
string data = git.StandardOutput.ReadToEnd();
git.WaitForExit();
switch (git.ExitCode)
{
case 0: // OK
string[] entries = data.Split('\0');
// Because each line terminates with the \0 character, splitting leaves us with one
// bogus blank entry at the end of the array which we should ignore
for (var i = 0; i < entries.Length - 1; i++)
{
yield return(entries[i]);
}
break;
case 1: // No results
break;
default:
_trace.WriteLine($"Failed to get all config entries '{name}' (exit={git.ExitCode}, level={level})");
throw GitProcess.CreateGitException(git, $"Failed to get all Git configuration entries '{name}'");
}
}
}
public bool TryGet(GitConfigurationLevel level, GitConfigurationType type, string name, out string value)
{
string levelArg = GetLevelFilterArg(level);
string typeArg = GetCanonicalizeTypeArg(type);
using (Process git = _git.CreateProcess($"config --null {levelArg} {typeArg} {QuoteCmdArg(name)}"))
{
git.Start();
git.WaitForExit();
switch (git.ExitCode)
{
case 0: // OK
break;
case 1: // Not found
value = null;
return(false);
default: // Error
_trace.WriteLine($"Failed to read Git configuration entry '{name}'. (exit={git.ExitCode}, level={level})");
value = null;
return(false);
}
string data = git.StandardOutput.ReadToEnd();
string[] entries = data.Split('\0');
if (entries.Length > 0)
{
value = entries[0];
return(true);
}
value = null;
return(false);
}
}
