private async Task <bool> DoOperationAsync(
IEnumerable <string> args,
ICondaEnvironmentManagerUI ui,
CancellationToken ct,
Redirector redirector = null
)
{
bool success = false;
try {
var envVars = await GetEnvironmentVariables();
// Note: conda tries to write temporary files to the current working directory
using (var output = ProcessOutput.Run(
CondaPath,
args,
Path.GetTempPath(),
envVars,
false,
redirector ?? CondaEnvironmentManagerUIRedirector.Get(this, ui),
quoteArgs: false,
elevate: false
)) {
if (!output.IsStarted)
{
return(false);
}
var exitCode = await output;
success = exitCode == 0;
}
return(success);
} catch (IOException) {
return(false);
}
}
private async Task <bool> DoOperationAsync(
IEnumerable <string> args,
ICondaEnvironmentManagerUI ui,
CancellationToken ct,
Redirector redirector = null
)
{
bool success = false;
try {
using (var output = ProcessOutput.Run(
CondaPath,
args,
Path.GetDirectoryName(CondaPath),
UnbufferedEnv,
false,
redirector ?? CondaEnvironmentManagerUIRedirector.Get(this, ui),
quoteArgs: false,
elevate: false
)) {
if (!output.IsStarted)
{
return(false);
}
var exitCode = await output;
success = exitCode == 0;
}
return(success);
} catch (IOException) {
return(false);
}
}
private async Task <bool> ExportAsync(string envPath, string destinationSpecFilePath, string[] args, ICondaEnvironmentManagerUI ui, CancellationToken ct)
{
bool success = false;
using (await _working.LockAsync(ct)) {
await EnsureActivatedAsync();
var operation = "conda " + string.Join(" ", args);
ui?.OnOperationStarted(this, operation);
ui?.OnOutputTextReceived(this, Strings.CondaExportStarted.FormatUI(envPath));
try {
if (!PathUtils.IsValidPath(envPath))
{
ui?.OnErrorTextReceived(this, Strings.CondaFolderNotFoundError.FormatUI(envPath));
success = false;
return(success);
}
var entries = new List <string>();
var capture = new ListRedirector(entries);
var redirector = new TeeRedirector(CondaEnvironmentManagerUIRedirector.Get(this, ui), capture);
success = await DoOperationAsync(args, ui, ct, redirector);
if (success)
{
try {
using (var writer = new StreamWriter(destinationSpecFilePath, false, Encoding.UTF8)) {
foreach (var line in entries)
{
await writer.WriteLineAsync(line);
}
}
} catch (IOException ex) {
ui?.OnErrorTextReceived(this, ex.Message);
success = false;
} catch (UnauthorizedAccessException ex) {
ui?.OnErrorTextReceived(this, ex.Message);
success = false;
} catch (ArgumentException ex) {
ui?.OnErrorTextReceived(this, ex.Message);
success = false;
}
}
return(success);
} finally {
var msg = success ? Strings.CondaExportSuccess : Strings.CondaExportFailed;
ui?.OnOutputTextReceived(this, msg.FormatUI(envPath));
ui?.OnOperationFinished(this, operation, success);
}
}
}