public void UnsetAll(GitConfigurationLevel level, string name, string valueRegex)
{
EnsureSpecificLevel(level);
string levelArg = GetLevelFilterArg(level);
var gitArgs = $"config {levelArg} --unset-all {QuoteCmdArg(name)}";
if (valueRegex != null)
{
gitArgs += $" {QuoteCmdArg(valueRegex)}";
}
using (Process git = _git.CreateProcess(gitArgs))
{
git.Start();
git.WaitForExit();
switch (git.ExitCode)
{
case 0: // OK
case 5: // Trying to unset a value that does not exist
break;
default:
_trace.WriteLine($"Failed to unset all multivar '{name}' with value regex '{valueRegex}' (exit={git.ExitCode}, level={level})");
throw GitProcess.CreateGitException(git, $"Failed to unset all Git configuration multi-valued entries '{name}'");
}
}
}
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, $"Failed to get Git configuration multi-valued entries with name regex '{nameRegex}'");
}
string[] entries = data.Split('\0');
foreach (string entry in entries)
{
string[] kvp = entry.Split(new[] { '\n' }, count: 2);
if (kvp.Length == 2)
{
yield return(kvp[1]);
}
}
}
}
public void Add(GitConfigurationLevel level, string name, string value)
{
EnsureSpecificLevel(level);
string levelArg = GetLevelFilterArg(level);
using (Process git = _git.CreateProcess($"config {levelArg} --add {QuoteCmdArg(name)} {QuoteCmdArg(value)}"))
{
git.Start();
git.WaitForExit();
switch (git.ExitCode)
{
case 0: // OK
break;
default:
_trace.WriteLine($"Failed to add config entry '{name}' with value '{value}' (exit={git.ExitCode}, level={level})");
throw GitProcess.CreateGitException(git, $"Failed to add Git configuration entry '{name}'");
}
}
}
public void Unset(GitConfigurationLevel level, string name)
{
EnsureSpecificLevel(level);
string levelArg = GetLevelFilterArg(level);
using (Process git = _git.CreateProcess($"config {levelArg} --unset {QuoteCmdArg(name)}"))
{
git.Start();
git.WaitForExit();
switch (git.ExitCode)
{
case 0: // OK
case 5: // Trying to unset a value that does not exist
break;
default:
_trace.WriteLine($"Failed to unset config entry '{name}' (exit={git.ExitCode}, level={level})");
throw GitProcess.CreateGitException(git, $"Failed to unset Git configuration entry '{name}'");
}
}
}
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, $"Failed to get all Git configuration entries '{name}'");
}
}
}
public void Enumerate(GitConfigurationLevel level, GitConfigurationEnumerationCallback cb)
{
string levelArg = GetLevelFilterArg(level);
using (Process git = _git.CreateProcess($"config --null {levelArg} --list"))
{
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
break;
default:
_trace.WriteLine($"Failed to enumerate config entries (exit={git.ExitCode}, level={level})");
throw GitProcess.CreateGitException(git, "Failed to enumerate all Git configuration entries");
}
var name = new StringBuilder();
var value = new StringBuilder();
int i = 0;
while (i < data.Length)
{
name.Clear();
value.Clear();
// Read key name (LF terminated)
while (i < data.Length && data[i] != '\n')
{
name.Append(data[i++]);
}
if (i >= data.Length)
{
_trace.WriteLine("Invalid Git configuration output. Expected newline terminator (\\n) after key.");
break;
}
// Skip the LF terminator
i++;
// Read value (null terminated)
while (i < data.Length && data[i] != '\0')
{
value.Append(data[i++]);
}
if (i >= data.Length)
{
_trace.WriteLine("Invalid Git configuration output. Expected null terminator (\\0) after value.");
break;
}
// Skip the null terminator
i++;
var entry = new GitConfigurationEntry(name.ToString(), value.ToString());
if (!cb(entry))
{
break;
}
}
}
}
