private void HandleDehydrateFolders(NamedPipeMessages.Message message, NamedPipeServer.Connection connection)
{
NamedPipeMessages.DehydrateFolders.Request request = new NamedPipeMessages.DehydrateFolders.Request(message);
this.tracer.RelatedInfo($"Received dehydrate folders request with body {message.Body}");
NamedPipeMessages.DehydrateFolders.Response response;
if (this.currentState == MountState.Ready)
{
response = new NamedPipeMessages.DehydrateFolders.Response(NamedPipeMessages.DehydrateFolders.DehydratedResult);
string[] folders = request.Folders.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string folder in folders)
{
if (this.fileSystemCallbacks.TryDehydrateFolder(folder, out string errorMessage))
{
response.SuccessfulFolders.Add(folder);
}
else
{
response.FailedFolders.Add($"{folder}\0{errorMessage}");
}
}
// Since placeholders and modified paths could have changed with the dehydrate, the index needs to be rebuilt
GitProcess gitProcess = new GitProcess(this.enlistment);
gitProcess.ForceCheckout(GVFSConstants.DotGit.HeadName);
}
else
{
response = new NamedPipeMessages.DehydrateFolders.Response(NamedPipeMessages.DehydrateFolders.MountNotReadyResult);
}
connection.TrySendResponse(response.CreateMessage());
}
private bool TryRecreateIndex(ITracer tracer, GVFSEnlistment enlistment)
{
string errorMessage = null;
if (!this.ShowStatusWhileRunning(
() =>
{
// Create a new index based on the new minimal modified paths
using (NamedPipeServer pipeServer = AllowAllLocksNamedPipeServer.Create(tracer, enlistment))
{
GitProcess git = new GitProcess(enlistment);
GitProcess.Result checkoutResult = git.ForceCheckout("HEAD");
errorMessage = checkoutResult.Errors;
return(!checkoutResult.HasErrors);
}
},
"Recreating git index",
suppressGvfsLogMessage: true))
{
this.WriteMessage(tracer, "Failed to recreate index: " + errorMessage);
return(false);
}
return(true);
}
private bool TryRecreateIndex(ITracer tracer, GVFSEnlistment enlistment)
{
return(this.ShowStatusWhileRunning(
() =>
{
// Create a new index based on the new minimal sparse-checkout
using (NamedPipeServer pipeServer = AllowAllLocksNamedPipeServer.Create(enlistment))
{
GitProcess git = new GitProcess(enlistment);
GitProcess.Result checkoutResult = git.ForceCheckout("HEAD");
return !checkoutResult.HasErrors;
}
},
"Recreating git index",
suppressGvfsLogMessage: true));
}
private void ForceProjectionChange(ITracer tracer, GVFSEnlistment enlistment)
{
string errorMessage = null;
if (!this.ShowStatusWhileRunning(
() =>
{
GitProcess git = new GitProcess(enlistment);
GitProcess.Result checkoutResult = git.ForceCheckout("HEAD");
errorMessage = checkoutResult.Errors;
return(checkoutResult.ExitCodeIsSuccess);
},
"Forcing a projection change",
suppressGvfsLogMessage: true))
{
this.WriteMessage(tracer, "Failed to change projection: " + errorMessage);
}
}
public CloneVerb.Result CreateClone(GitRefs refs, string branch)
{
GitObjects gitObjects = new GitObjects(this.tracer, this.enlistment, this.objectRequestor);
CloneVerb.Result initRepoResult = this.TryInitRepo(refs, this.enlistment);
if (!initRepoResult.Success)
{
return(initRepoResult);
}
string errorMessage;
if (!this.enlistment.TryConfigureAlternate(out errorMessage))
{
return(new CloneVerb.Result("Error configuring alternate: " + errorMessage));
}
if (!gitObjects.TryDownloadAndSaveCommit(refs.GetTipCommitId(branch), commitDepth: 2))
{
return(new CloneVerb.Result("Could not download tip commits from: " + Uri.EscapeUriString(this.objectRequestor.CacheServer.ObjectsEndpointUrl)));
}
GitProcess git = new GitProcess(this.enlistment);
if (!this.SetConfigSettings(git, this.objectRequestor.CacheServer))
{
return(new CloneVerb.Result("Unable to configure git repo"));
}
string originBranchName = "origin/" + branch;
GitProcess.Result createBranchResult = git.CreateBranchWithUpstream(branch, originBranchName);
if (createBranchResult.HasErrors)
{
return(new CloneVerb.Result("Unable to create branch '" + originBranchName + "': " + createBranchResult.Errors + "\r\n" + createBranchResult.Output));
}
File.WriteAllText(
Path.Combine(this.enlistment.WorkingDirectoryRoot, GVFSConstants.DotGit.Head),
"ref: refs/heads/" + branch);
File.AppendAllText(
Path.Combine(this.enlistment.WorkingDirectoryRoot, GVFSConstants.DotGit.Info.SparseCheckoutPath),
GVFSConstants.GitPathSeparatorString + GVFSConstants.SpecialGitFiles.GitAttributes + "\n");
CloneVerb.Result hydrateResult = this.HydrateRootGitAttributes(gitObjects, branch);
if (!hydrateResult.Success)
{
return(hydrateResult);
}
this.CreateGitScript();
GitProcess.Result forceCheckoutResult = git.ForceCheckout(branch);
if (forceCheckoutResult.HasErrors)
{
string[] errorLines = forceCheckoutResult.Errors.Split('\n');
StringBuilder checkoutErrors = new StringBuilder();
foreach (string gitError in errorLines)
{
if (IsForceCheckoutErrorCloneFailure(gitError))
{
checkoutErrors.AppendLine(gitError);
}
}
if (checkoutErrors.Length > 0)
{
string error = "Could not complete checkout of branch: " + branch + ", " + checkoutErrors.ToString();
this.tracer.RelatedError(error);
return(new CloneVerb.Result(error));
}
}
GitProcess.Result updateIndexresult = git.UpdateIndexVersion4();
if (updateIndexresult.HasErrors)
{
string error = "Could not update index, error: " + updateIndexresult.Errors;
this.tracer.RelatedError(error);
return(new CloneVerb.Result(error));
}
string installHooksError;
if (!HooksInstaller.InstallHooks(this.enlistment, out installHooksError))
{
this.tracer.RelatedError(installHooksError);
return(new CloneVerb.Result(installHooksError));
}
using (RepoMetadata repoMetadata = new RepoMetadata(this.enlistment.DotGVFSRoot))
{
repoMetadata.SaveCurrentDiskLayoutVersion();
}
// Prepare the working directory folder for GVFS last to ensure that gvfs mount will fail if gvfs clone has failed
string prepGVFltError;
if (!GVFltCallbacks.TryPrepareFolderForGVFltCallbacks(this.enlistment.WorkingDirectoryRoot, out prepGVFltError))
{
this.tracer.RelatedError(prepGVFltError);
return(new CloneVerb.Result(prepGVFltError));
}
return(new CloneVerb.Result(true));
}
private Result CreateClone(
ITracer tracer,
GVFSEnlistment enlistment,
GitObjectsHttpRequestor objectRequestor,
GitRefs refs,
string branch)
{
Result initRepoResult = this.TryInitRepo(tracer, refs, enlistment);
if (!initRepoResult.Success)
{
return(initRepoResult);
}
PhysicalFileSystem fileSystem = new PhysicalFileSystem();
string errorMessage;
if (!this.TryCreateAlternatesFile(fileSystem, enlistment, out errorMessage))
{
return(new Result("Error configuring alternate: " + errorMessage));
}
GitRepo gitRepo = new GitRepo(tracer, enlistment, fileSystem);
GVFSContext context = new GVFSContext(tracer, fileSystem, gitRepo, enlistment);
GVFSGitObjects gitObjects = new GVFSGitObjects(context, objectRequestor);
if (!this.TryDownloadCommit(
refs.GetTipCommitId(branch),
enlistment,
objectRequestor,
gitObjects,
gitRepo,
out errorMessage))
{
return(new Result(errorMessage));
}
if (!GVFSVerb.TrySetRequiredGitConfigSettings(enlistment) ||
!GVFSVerb.TrySetOptionalGitConfigSettings(enlistment))
{
return(new Result("Unable to configure git repo"));
}
CacheServerResolver cacheServerResolver = new CacheServerResolver(tracer, enlistment);
if (!cacheServerResolver.TrySaveUrlToLocalConfig(objectRequestor.CacheServer, out errorMessage))
{
return(new Result("Unable to configure cache server: " + errorMessage));
}
GitProcess git = new GitProcess(enlistment);
string originBranchName = "origin/" + branch;
GitProcess.Result createBranchResult = git.CreateBranchWithUpstream(branch, originBranchName);
if (createBranchResult.ExitCodeIsFailure)
{
return(new Result("Unable to create branch '" + originBranchName + "': " + createBranchResult.Errors + "\r\n" + createBranchResult.Output));
}
File.WriteAllText(
Path.Combine(enlistment.WorkingDirectoryRoot, GVFSConstants.DotGit.Head),
"ref: refs/heads/" + branch);
if (!this.TryDownloadRootGitAttributes(enlistment, gitObjects, gitRepo, out errorMessage))
{
return(new Result(errorMessage));
}
this.CreateGitScript(enlistment);
string installHooksError;
if (!HooksInstaller.InstallHooks(context, out installHooksError))
{
tracer.RelatedError(installHooksError);
return(new Result(installHooksError));
}
GitProcess.Result forceCheckoutResult = git.ForceCheckout(branch);
if (forceCheckoutResult.ExitCodeIsFailure && forceCheckoutResult.Errors.IndexOf("unable to read tree") > 0)
{
// It is possible to have the above TryDownloadCommit() fail because we
// already have the commit and root tree we intend to check out, but
// don't have a tree further down the working directory. If we fail
// checkout here, its' because we don't have these trees and the
// read-object hook is not available yet. Force downloading the commit
// again and retry the checkout.
if (!this.TryDownloadCommit(
refs.GetTipCommitId(branch),
enlistment,
objectRequestor,
gitObjects,
gitRepo,
out errorMessage,
checkLocalObjectCache: false))
{
return(new Result(errorMessage));
}
forceCheckoutResult = git.ForceCheckout(branch);
}
if (forceCheckoutResult.ExitCodeIsFailure)
{
string[] errorLines = forceCheckoutResult.Errors.Split('\n');
StringBuilder checkoutErrors = new StringBuilder();
foreach (string gitError in errorLines)
{
if (IsForceCheckoutErrorCloneFailure(gitError))
{
checkoutErrors.AppendLine(gitError);
}
}
if (checkoutErrors.Length > 0)
{
string error = "Could not complete checkout of branch: " + branch + ", " + checkoutErrors.ToString();
tracer.RelatedError(error);
return(new Result(error));
}
}
if (!RepoMetadata.TryInitialize(tracer, enlistment.DotGVFSRoot, out errorMessage))
{
tracer.RelatedError(errorMessage);
return(new Result(errorMessage));
}
try
{
RepoMetadata.Instance.SaveCloneMetadata(tracer, enlistment);
this.LogEnlistmentInfoAndSetConfigValues(tracer, git, enlistment);
}
catch (Exception e)
{
tracer.RelatedError(e.ToString());
return(new Result(e.Message));
}
finally
{
RepoMetadata.Shutdown();
}
// Prepare the working directory folder for GVFS last to ensure that gvfs mount will fail if gvfs clone has failed
Exception exception;
string prepFileSystemError;
if (!GVFSPlatform.Instance.KernelDriver.TryPrepareFolderForCallbacks(enlistment.WorkingDirectoryRoot, out prepFileSystemError, out exception))
{
EventMetadata metadata = new EventMetadata();
metadata.Add(nameof(prepFileSystemError), prepFileSystemError);
if (exception != null)
{
metadata.Add("Exception", exception.ToString());
}
tracer.RelatedError(metadata, $"{nameof(this.CreateClone)}: TryPrepareFolderForCallbacks failed");
return(new Result(prepFileSystemError));
}
return(new Result(true));
}
private Result CreateClone(
ITracer tracer,
GVFSEnlistment enlistment,
GitObjectsHttpRequestor objectRequestor,
GitRefs refs,
string branch)
{
Result initRepoResult = this.TryInitRepo(tracer, refs, enlistment);
if (!initRepoResult.Success)
{
return(initRepoResult);
}
PhysicalFileSystem fileSystem = new PhysicalFileSystem();
string errorMessage;
if (!this.TryCreateAlternatesFile(fileSystem, enlistment, out errorMessage))
{
return(new Result("Error configuring alternate: " + errorMessage));
}
GitRepo gitRepo = new GitRepo(tracer, enlistment, fileSystem);
GVFSContext context = new GVFSContext(tracer, fileSystem, gitRepo, enlistment);
GVFSGitObjects gitObjects = new GVFSGitObjects(context, objectRequestor);
if (!this.TryDownloadCommit(
refs.GetTipCommitId(branch),
enlistment,
objectRequestor,
gitObjects,
gitRepo,
out errorMessage))
{
return(new Result(errorMessage));
}
if (!GVFSVerb.TrySetRequiredGitConfigSettings(enlistment) ||
!GVFSVerb.TrySetOptionalGitConfigSettings(enlistment))
{
return(new Result("Unable to configure git repo"));
}
CacheServerResolver cacheServerResolver = new CacheServerResolver(tracer, enlistment);
if (!cacheServerResolver.TrySaveUrlToLocalConfig(objectRequestor.CacheServer, out errorMessage))
{
return(new Result("Unable to configure cache server: " + errorMessage));
}
GitProcess git = new GitProcess(enlistment);
string originBranchName = "origin/" + branch;
GitProcess.Result createBranchResult = git.CreateBranchWithUpstream(branch, originBranchName);
if (createBranchResult.HasErrors)
{
return(new Result("Unable to create branch '" + originBranchName + "': " + createBranchResult.Errors + "\r\n" + createBranchResult.Output));
}
File.WriteAllText(
Path.Combine(enlistment.WorkingDirectoryRoot, GVFSConstants.DotGit.Head),
"ref: refs/heads/" + branch);
File.AppendAllText(
Path.Combine(enlistment.WorkingDirectoryRoot, GVFSConstants.DotGit.Info.SparseCheckoutPath),
GVFSConstants.GitPathSeparatorString + GVFSConstants.SpecialGitFiles.GitAttributes + "\n");
if (!this.TryDownloadRootGitAttributes(enlistment, gitObjects, gitRepo, out errorMessage))
{
return(new Result(errorMessage));
}
this.CreateGitScript(enlistment);
string installHooksError;
if (!HooksInstaller.InstallHooks(context, out installHooksError))
{
tracer.RelatedError(installHooksError);
return(new Result(installHooksError));
}
GitProcess.Result forceCheckoutResult = git.ForceCheckout(branch);
if (forceCheckoutResult.HasErrors)
{
string[] errorLines = forceCheckoutResult.Errors.Split('\n');
StringBuilder checkoutErrors = new StringBuilder();
foreach (string gitError in errorLines)
{
if (IsForceCheckoutErrorCloneFailure(gitError))
{
checkoutErrors.AppendLine(gitError);
}
}
if (checkoutErrors.Length > 0)
{
string error = "Could not complete checkout of branch: " + branch + ", " + checkoutErrors.ToString();
tracer.RelatedError(error);
return(new Result(error));
}
}
if (!RepoMetadata.TryInitialize(tracer, enlistment.DotGVFSRoot, out errorMessage))
{
tracer.RelatedError(errorMessage);
return(new Result(errorMessage));
}
try
{
RepoMetadata.Instance.SaveCloneMetadata(tracer, enlistment);
this.LogEnlistmentInfoAndSetConfigValues(tracer, git, enlistment);
}
catch (Exception e)
{
tracer.RelatedError(e.ToString());
return(new Result(e.Message));
}
finally
{
RepoMetadata.Shutdown();
}
// Prepare the working directory folder for GVFS last to ensure that gvfs mount will fail if gvfs clone has failed
string prepFileSystemError;
if (!GVFSPlatform.Instance.KernelDriver.TryPrepareFolderForCallbacks(enlistment.WorkingDirectoryRoot, out prepFileSystemError))
{
tracer.RelatedError(prepFileSystemError);
return(new Result(prepFileSystemError));
}
return(new Result(true));
}
private Result GitClone()
{
string gitBinPath = ScalarPlatform.Instance.GitInstallation.GetInstalledGitBinPath();
if (string.IsNullOrWhiteSpace(gitBinPath))
{
return(new Result(ScalarConstants.GitIsNotInstalledError));
}
GitProcess git = new GitProcess(this.enlistment);
// protocol.version=2 is broken right now.
git.SetInLocalConfig("protocol.version", "1");
git.SetInLocalConfig("remote.origin.url", this.RepositoryURL);
git.SetInLocalConfig("remote.origin.fetch", "+refs/heads/*:refs/remotes/origin/*");
git.SetInLocalConfig("remote.origin.promisor", "true");
git.SetInLocalConfig("remote.origin.partialCloneFilter", "blob:none");
string branch = this.Branch ?? "master";
git.SetInLocalConfig($"branch.{branch}.remote", "origin");
git.SetInLocalConfig($"branch.{branch}.merge", $"refs/heads/{branch}");
if (!this.FullClone)
{
GitProcess.SparseCheckoutInit(this.enlistment);
}
this.context = new ScalarContext(this.tracer, this.fileSystem, this.enlistment);
// Set required and optional config.
// Explicitly pass useGvfsProtocol: true as the enlistment can not discover that setting from
// Git config yet. Other verbs will discover this automatically from the config we set now.
ConfigStep configStep = new ConfigStep(this.context, useGvfsProtocol: false);
if (!configStep.TrySetConfig(out string configError))
{
return(new Result($"Failed to set initial config: {configError}"));
}
GitProcess.Result fetchResult = null;
if (!this.ShowStatusWhileRunning(() =>
{
using (ITracer activity = this.tracer.StartActivity("git-fetch-partial", EventLevel.LogAlways))
{
fetchResult = git.ForegroundFetch("origin");
return(fetchResult.ExitCodeIsSuccess);
}
},
"Fetching objects from remote"))
{
if (!fetchResult.Errors.Contains("filtering not recognized by server"))
{
return(new Result($"Failed to complete regular clone: {fetchResult?.Errors}"));
}
}
if (fetchResult.ExitCodeIsFailure &&
!this.ShowStatusWhileRunning(() =>
{
using (ITracer activity = this.tracer.StartActivity("git-fetch", EventLevel.LogAlways))
{
git.DeleteFromLocalConfig("remote.origin.promisor");
git.DeleteFromLocalConfig("remote.origin.partialCloneFilter");
fetchResult = git.ForegroundFetch("origin");
return(fetchResult.ExitCodeIsSuccess);
}
},
"Fetching objects from remote"))
{
return(new Result($"Failed to complete regular clone: {fetchResult?.Errors}"));
}
GitProcess.Result checkoutResult = null;
if (!this.ShowStatusWhileRunning(() =>
{
using (ITracer activity = this.tracer.StartActivity("git-checkout", EventLevel.LogAlways))
{
checkoutResult = git.ForceCheckout(branch);
return(checkoutResult.ExitCodeIsSuccess);
}
},
$"Checking out '{branch}'"))
{
return(new Result($"Failed to complete regular clone: {checkoutResult?.Errors}"));
}
return(new Result(true));
}
private Result CreateClone(
ITracer tracer,
GSDEnlistment enlistment,
GitObjectsHttpRequestor objectRequestor,
GitRefs refs,
string branch)
{
Result initRepoResult = this.TryInitRepo(tracer, refs, enlistment);
if (!initRepoResult.Success)
{
return(initRepoResult);
}
PhysicalFileSystem fileSystem = new PhysicalFileSystem();
string errorMessage;
if (!this.TryCreateAlternatesFile(fileSystem, enlistment, out errorMessage))
{
return(new Result("Error configuring alternate: " + errorMessage));
}
GitRepo gitRepo = new GitRepo(tracer, enlistment, fileSystem);
GSDContext context = new GSDContext(tracer, fileSystem, gitRepo, enlistment);
GSDGitObjects gitObjects = new GSDGitObjects(context, objectRequestor);
if (!this.TryDownloadCommit(
refs.GetTipCommitId(branch),
enlistment,
objectRequestor,
gitObjects,
gitRepo,
out errorMessage))
{
return(new Result(errorMessage));
}
if (!GSDVerb.TrySetRequiredGitConfigSettings(enlistment) ||
!GSDVerb.TrySetOptionalGitConfigSettings(enlistment))
{
return(new Result("Unable to configure git repo"));
}
CacheServerResolver cacheServerResolver = new CacheServerResolver(tracer, enlistment);
if (!cacheServerResolver.TrySaveUrlToLocalConfig(objectRequestor.CacheServer, out errorMessage))
{
return(new Result("Unable to configure cache server: " + errorMessage));
}
GitProcess git = new GitProcess(enlistment);
string originBranchName = "origin/" + branch;
GitProcess.Result createBranchResult = git.CreateBranchWithUpstream(branch, originBranchName);
if (createBranchResult.ExitCodeIsFailure)
{
return(new Result("Unable to create branch '" + originBranchName + "': " + createBranchResult.Errors + "\r\n" + createBranchResult.Output));
}
File.WriteAllText(
Path.Combine(enlistment.WorkingDirectoryBackingRoot, GSDConstants.DotGit.Head),
"ref: refs/heads/" + branch);
if (!this.TryDownloadRootGitAttributes(enlistment, gitObjects, gitRepo, out errorMessage))
{
return(new Result(errorMessage));
}
this.CreateGitScript(enlistment);
string installHooksError;
if (!HooksInstaller.InstallHooks(context, out installHooksError))
{
tracer.RelatedError(installHooksError);
return(new Result(installHooksError));
}
// TODO: Move this to be after the mount?
GitProcess.Result forceCheckoutResult = git.ForceCheckout(branch);
if (forceCheckoutResult.ExitCodeIsFailure && forceCheckoutResult.Errors.IndexOf("unable to read tree") > 0)
{
// It is possible to have the above TryDownloadCommit() fail because we
// already have the commit and root tree we intend to check out, but
// don't have a tree further down the working directory. If we fail
// checkout here, its' because we don't have these trees and the
// read-object hook is not available yet. Force downloading the commit
// again and retry the checkout.
if (!this.TryDownloadCommit(
refs.GetTipCommitId(branch),
enlistment,
objectRequestor,
gitObjects,
gitRepo,
out errorMessage,
checkLocalObjectCache: false))
{
return(new Result(errorMessage));
}
forceCheckoutResult = git.ForceCheckout(branch);
}
if (!RepoMetadata.TryInitialize(tracer, enlistment.DotGSDRoot, out errorMessage))
{
tracer.RelatedError(errorMessage);
return(new Result(errorMessage));
}
try
{
RepoMetadata.Instance.SaveCloneMetadata(tracer, enlistment);
this.LogEnlistmentInfoAndSetConfigValues(tracer, git, enlistment);
}
catch (Exception e)
{
tracer.RelatedError(e.ToString());
return(new Result(e.Message));
}
finally
{
RepoMetadata.Shutdown();
}
return(new Result(true));
}
