vfs

package
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 Go to latest Published: Feb 19, 2020 License: Apache-2.0 Imports: 44 Imported by: 0

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Index

Constants

This section is empty.

Variables

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var Context = VFSContext{
	// contains filtered or unexported fields
}

Functions

func AWSErrorCode 

func AWSErrorCode(err error) string

AWSErrorCode returns the aws error code, if it is an awserr.Error, otherwise ""

func CopyFile 

func CopyFile(src, dest Path, acl ACL) error

CopyFile copies the file at src to dest. It uses a TempFile, rather than buffering in memory.

func CopyTree 

func CopyTree(src Path, dest Path, aclOracle ACLOracle) error

CopyTree copies all files in src to dest. It copies the whole recursive subtree of files.

func IsClusterReadable 

func IsClusterReadable(p Path) bool

func IsDirectory 

func IsDirectory(p Path) bool

func NewAliOSSClient 

func NewAliOSSClient() (*oss.Client, error)

func NewSwiftClient 

func NewSwiftClient() (*gophercloud.ServiceClient, error)

func RelativePath 

func RelativePath(base Path, child Path) (string, error)

func RetryWithBackoff 

func RetryWithBackoff(backoff wait.Backoff, condition func() (bool, error)) (bool, error)

RetryWithBackoff runs until a condition function returns true, or until Steps attempts have been taken As compared to wait.ExponentialBackoff, this function returns the results from the function on the final attempt

func SyncDir 

func SyncDir(src *VFSScan, destBase Path) error

func VFSPath 

func VFSPath(url string) (string, error)

Types

type ACL 

type ACL interface {
}

type ACLOracle 

type ACLOracle func(Path) (ACL, error)

type Change 

type Change struct {
	ChangeType ChangeType
	Path       Path
	Hash       *hashing.Hash
}

type ChangeType 

type ChangeType string
const (
	ChangeType_Added    ChangeType = "ADDED"
	ChangeType_Removed  ChangeType = "REMOVED"
	ChangeType_Modified ChangeType = "MODIFIED"
)

type FSPath 

type FSPath struct {
	// contains filtered or unexported fields
}

func NewFSPath 

func NewFSPath(location string) *FSPath

func (*FSPath) Base 

func (p *FSPath) Base() string

func (*FSPath) CreateFile 

func (p *FSPath) CreateFile(data io.ReadSeeker, acl ACL) error

func (*FSPath) Hash 

func (p *FSPath) Hash(a hashing.HashAlgorithm) (*hashing.Hash, error)

func (*FSPath) Join 

func (p *FSPath) Join(relativePath ...string) Path

func (*FSPath) Path 

func (p *FSPath) Path() string

func (*FSPath) PreferredHash 

func (p *FSPath) PreferredHash() (*hashing.Hash, error)

func (*FSPath) ReadDir 

func (p *FSPath) ReadDir() ([]Path, error)

func (*FSPath) ReadFile 

func (p *FSPath) ReadFile() ([]byte, error)

ReadFile implements Path::ReadFile

func (*FSPath) ReadTree 

func (p *FSPath) ReadTree() ([]Path, error)

func (*FSPath) Remove 

func (p *FSPath) Remove() error

func (*FSPath) String 

func (p *FSPath) String() string

func (*FSPath) WriteFile 

func (p *FSPath) WriteFile(data io.ReadSeeker, acl ACL) error

func (*FSPath) WriteTo 

func (p *FSPath) WriteTo(out io.Writer) (int64, error)

WriteTo implements io.WriterTo

type GSAcl 

type GSAcl struct {
	Acl []*storage.ObjectAccessControl
}

GSAcl is an ACL implementation for objects on Google Cloud Storage

type GSPath 

type GSPath struct {
	// contains filtered or unexported fields
}

GSPath is a vfs path for Google Cloud Storage

func NewGSPath 

func NewGSPath(client *storage.Service, bucket string, key string) *GSPath

func (*GSPath) Base 

func (p *GSPath) Base() string

func (*GSPath) Bucket 

func (p *GSPath) Bucket() string

func (*GSPath) Client 

func (p *GSPath) Client() *storage.Service

Client returns the storage.Service bound to this path

func (*GSPath) CreateFile 

func (p *GSPath) CreateFile(data io.ReadSeeker, acl ACL) error

func (*GSPath) Hash 

func (p *GSPath) Hash(a hashing.HashAlgorithm) (*hashing.Hash, error)

func (*GSPath) Join 

func (p *GSPath) Join(relativePath ...string) Path

func (*GSPath) Object 

func (p *GSPath) Object() string

func (*GSPath) Path 

func (p *GSPath) Path() string

func (*GSPath) PreferredHash 

func (p *GSPath) PreferredHash() (*hashing.Hash, error)

func (*GSPath) ReadDir 

func (p *GSPath) ReadDir() ([]Path, error)

ReadDir implements Path::ReadDir

func (*GSPath) ReadFile 

func (p *GSPath) ReadFile() ([]byte, error)

ReadFile implements Path::ReadFile

func (*GSPath) ReadTree 

func (p *GSPath) ReadTree() ([]Path, error)

ReadTree implements Path::ReadTree

func (*GSPath) Remove 

func (p *GSPath) Remove() error

func (*GSPath) String 

func (p *GSPath) String() string

func (*GSPath) WriteFile 

func (p *GSPath) WriteFile(data io.ReadSeeker, acl ACL) error

func (*GSPath) WriteTo 

func (p *GSPath) WriteTo(out io.Writer) (int64, error)

WriteTo implements io.WriterTo::WriteTo

type HasClusterReadable 

type HasClusterReadable interface {
	IsClusterReadable() bool
}

type HasHash 

type HasHash interface {
	// Returns the hash of the file contents, with the preferred hash algorithm
	PreferredHash() (*hashing.Hash, error)

	// Gets the hash, or nil if the hash cannot be (easily) computed
	Hash(algorithm hashing.HashAlgorithm) (*hashing.Hash, error)
}

type KubernetesContext 

type KubernetesContext struct {
}

KubernetesContext is the context for a Kubernetes VFS implementation

func NewKubernetesContext 

func NewKubernetesContext() *KubernetesContext

NewKubernetesContext builds a KubernetesContext This will likely take a kubernetes rest client object (or similar) once the implementation is more complete

type KubernetesPath 

type KubernetesPath struct {
	// contains filtered or unexported fields
}

KubernetesPath is a path for a VFS backed by the kubernetes API Currently all operations are no-ops

func (*KubernetesPath) Base 

func (p *KubernetesPath) Base() string

func (*KubernetesPath) CreateFile 

func (p *KubernetesPath) CreateFile(data io.ReadSeeker, acl ACL) error

func (*KubernetesPath) Hash 

func (p *KubernetesPath) Hash(a hashing.HashAlgorithm) (*hashing.Hash, error)

func (*KubernetesPath) Host 

func (p *KubernetesPath) Host() string

func (*KubernetesPath) Join 

func (p *KubernetesPath) Join(relativePath ...string) Path

func (*KubernetesPath) Key 

func (p *KubernetesPath) Key() string

func (*KubernetesPath) Path 

func (p *KubernetesPath) Path() string

func (*KubernetesPath) PreferredHash 

func (p *KubernetesPath) PreferredHash() (*hashing.Hash, error)

func (*KubernetesPath) ReadDir 

func (p *KubernetesPath) ReadDir() ([]Path, error)

func (*KubernetesPath) ReadFile 

func (p *KubernetesPath) ReadFile() ([]byte, error)

ReadFile implements Path::ReadFile

func (*KubernetesPath) ReadTree 

func (p *KubernetesPath) ReadTree() ([]Path, error)

func (*KubernetesPath) Remove 

func (p *KubernetesPath) Remove() error

func (*KubernetesPath) String 

func (p *KubernetesPath) String() string

func (*KubernetesPath) WriteFile 

func (p *KubernetesPath) WriteFile(data io.ReadSeeker, acl ACL) error

func (*KubernetesPath) WriteTo 

func (p *KubernetesPath) WriteTo(out io.Writer) (int64, error)

WriteTo implements io.WriterTo

type MemFSContext 

type MemFSContext struct {
	// contains filtered or unexported fields
}

func NewMemFSContext 

func NewMemFSContext() *MemFSContext

func (*MemFSContext) MarkClusterReadable 

func (c *MemFSContext) MarkClusterReadable()

MarkClusterReadable pretends the current memfscontext is cluster readable; this is useful for tests

type MemFSPath 

type MemFSPath struct {
	// contains filtered or unexported fields
}

func NewMemFSPath 

func NewMemFSPath(context *MemFSContext, location string) *MemFSPath

func (*MemFSPath) Base 

func (p *MemFSPath) Base() string

func (*MemFSPath) CreateFile 

func (p *MemFSPath) CreateFile(data io.ReadSeeker, acl ACL) error

func (*MemFSPath) HasChildren 

func (c *MemFSPath) HasChildren() bool

func (*MemFSPath) IsClusterReadable 

func (c *MemFSPath) IsClusterReadable() bool

func (*MemFSPath) Join 

func (p *MemFSPath) Join(relativePath ...string) Path

func (*MemFSPath) Path 

func (p *MemFSPath) Path() string

func (*MemFSPath) ReadDir 

func (p *MemFSPath) ReadDir() ([]Path, error)

func (*MemFSPath) ReadFile 

func (p *MemFSPath) ReadFile() ([]byte, error)

ReadFile implements Path::ReadFile

func (*MemFSPath) ReadTree 

func (p *MemFSPath) ReadTree() ([]Path, error)

func (*MemFSPath) Remove 

func (p *MemFSPath) Remove() error

func (*MemFSPath) String 

func (p *MemFSPath) String() string

func (*MemFSPath) WriteFile 

func (p *MemFSPath) WriteFile(r io.ReadSeeker, acl ACL) error

func (*MemFSPath) WriteTo 

func (p *MemFSPath) WriteTo(out io.Writer) (int64, error)

WriteTo implements io.WriterTo

type OSSPath 

type OSSPath struct {
	// contains filtered or unexported fields
}

OSSPath is a vfs path for Aliyun Open Storage Service

func NewOSSPath 

func NewOSSPath(client *oss.Client, bucket string, key string) (*OSSPath, error)

func (*OSSPath) Base 

func (p *OSSPath) Base() string

func (*OSSPath) CreateFile 

func (p *OSSPath) CreateFile(data io.ReadSeeker, acl ACL) error

func (*OSSPath) Hash 

func (p *OSSPath) Hash(a hashing.HashAlgorithm) (*hashing.Hash, error)

func (*OSSPath) Join 

func (p *OSSPath) Join(relativePath ...string) Path

func (*OSSPath) Path 

func (p *OSSPath) Path() string

func (*OSSPath) PreferredHash 

func (p *OSSPath) PreferredHash() (*hashing.Hash, error)

func (*OSSPath) ReadDir 

func (p *OSSPath) ReadDir() ([]Path, error)

func (*OSSPath) ReadFile 

func (p *OSSPath) ReadFile() ([]byte, error)

func (*OSSPath) ReadTree 

func (p *OSSPath) ReadTree() ([]Path, error)

func (*OSSPath) Remove 

func (p *OSSPath) Remove() error

func (*OSSPath) String 

func (p *OSSPath) String() string

func (*OSSPath) WriteFile 

func (p *OSSPath) WriteFile(data io.ReadSeeker, acl ACL) error

func (*OSSPath) WriteTo 

func (p *OSSPath) WriteTo(out io.Writer) (int64, error)

WriteTo implements io.WriteTo

type OpenstackConfig 

type OpenstackConfig struct {
}

func (OpenstackConfig) GetCredential 

func (oc OpenstackConfig) GetCredential() (gophercloud.AuthOptions, error)

func (OpenstackConfig) GetRegion 

func (oc OpenstackConfig) GetRegion() (string, error)

func (OpenstackConfig) GetServiceConfig 

func (oc OpenstackConfig) GetServiceConfig(name string) (gophercloud.EndpointOpts, error)

type Path 

type Path interface {
	io.WriterTo

	Join(relativePath ...string) Path

	// ReadFile returns the contents of the file, or an error if the file could not be read.
	// If the file did not exist, err = os.ErrNotExist
	// As this reads the entire file into memory, consider using WriteTo for bigger files
	ReadFile() ([]byte, error)

	WriteFile(data io.ReadSeeker, acl ACL) error
	// CreateFile writes the file contents, but only if the file does not already exist
	CreateFile(data io.ReadSeeker, acl ACL) error

	// Remove deletes the file
	Remove() error

	// Base returns the base name (last element)
	Base() string

	// Path returns a string representing the full path
	Path() string

	// ReadDir lists the files in a particular Path
	ReadDir() ([]Path, error)

	// ReadTree lists all files (recursively) in the subtree rooted at the current Path
	/// Note: returns only files, not directories
	ReadTree() ([]Path, error)
}

Path is a path in the VFS space, which we can read, write, list etc

type S3Acl 

type S3Acl struct {
	RequestACL *string
}

S3Acl is an ACL implementation for objects on S3

type S3BucketDetails 

type S3BucketDetails struct {
	// contains filtered or unexported fields
}

type S3Context 

type S3Context struct {
	// contains filtered or unexported fields
}

func NewS3Context 

func NewS3Context() *S3Context

type S3Path 

type S3Path struct {
	// contains filtered or unexported fields
}

func (*S3Path) Base 

func (p *S3Path) Base() string

func (*S3Path) Bucket 

func (p *S3Path) Bucket() string

func (*S3Path) CreateFile 

func (p *S3Path) CreateFile(data io.ReadSeeker, acl ACL) error

func (*S3Path) Hash 

func (p *S3Path) Hash(a hashing.HashAlgorithm) (*hashing.Hash, error)

func (*S3Path) Join 

func (p *S3Path) Join(relativePath ...string) Path

func (*S3Path) Key 

func (p *S3Path) Key() string

func (*S3Path) Path 

func (p *S3Path) Path() string

func (*S3Path) PreferredHash 

func (p *S3Path) PreferredHash() (*hashing.Hash, error)

func (*S3Path) ReadDir 

func (p *S3Path) ReadDir() ([]Path, error)

func (*S3Path) ReadFile 

func (p *S3Path) ReadFile() ([]byte, error)

ReadFile implements Path::ReadFile

func (*S3Path) ReadTree 

func (p *S3Path) ReadTree() ([]Path, error)

func (*S3Path) Remove 

func (p *S3Path) Remove() error

func (*S3Path) String 

func (p *S3Path) String() string

func (*S3Path) WriteFile 

func (p *S3Path) WriteFile(data io.ReadSeeker, aclObj ACL) error

func (*S3Path) WriteTo 

func (p *S3Path) WriteTo(out io.Writer) (int64, error)

WriteTo implements io.WriterTo

type SSHAcl 

type SSHAcl struct {
	Mode os.FileMode
}

type SSHPath 

type SSHPath struct {
	// contains filtered or unexported fields
}

func NewSSHPath 

func NewSSHPath(client *ssh.Client, server string, path string, sudo bool) *SSHPath

func (*SSHPath) Base 

func (p *SSHPath) Base() string

func (*SSHPath) CreateFile 

func (p *SSHPath) CreateFile(data io.ReadSeeker, acl ACL) error

func (*SSHPath) Join 

func (p *SSHPath) Join(relativePath ...string) Path

func (*SSHPath) Path 

func (p *SSHPath) Path() string

func (*SSHPath) ReadDir 

func (p *SSHPath) ReadDir() ([]Path, error)

func (*SSHPath) ReadFile 

func (p *SSHPath) ReadFile() ([]byte, error)

ReadFile implements Path::ReadFile

func (*SSHPath) ReadTree 

func (p *SSHPath) ReadTree() ([]Path, error)

func (*SSHPath) Remove 

func (p *SSHPath) Remove() error

func (*SSHPath) String 

func (p *SSHPath) String() string

func (*SSHPath) WriteFile 

func (p *SSHPath) WriteFile(data io.ReadSeeker, acl ACL) error

func (*SSHPath) WriteTo 

func (p *SSHPath) WriteTo(out io.Writer) (int64, error)

WriteTo implements io.WriterTo

type SwiftPath 

type SwiftPath struct {
	// contains filtered or unexported fields
}

SwiftPath is a vfs path for Openstack Cloud Storage.

func NewSwiftPath 

func NewSwiftPath(client *gophercloud.ServiceClient, bucket string, key string) (*SwiftPath, error)

func (*SwiftPath) Base 

func (p *SwiftPath) Base() string

func (*SwiftPath) Bucket 

func (p *SwiftPath) Bucket() string

func (*SwiftPath) CreateFile 

func (p *SwiftPath) CreateFile(data io.ReadSeeker, acl ACL) error

func (*SwiftPath) Hash 

func (p *SwiftPath) Hash(a hashing.HashAlgorithm) (*hashing.Hash, error)

func (*SwiftPath) Join 

func (p *SwiftPath) Join(relativePath ...string) Path

func (*SwiftPath) Path 

func (p *SwiftPath) Path() string

func (*SwiftPath) PreferredHash 

func (p *SwiftPath) PreferredHash() (*hashing.Hash, error)

func (*SwiftPath) ReadDir 

func (p *SwiftPath) ReadDir() ([]Path, error)

ReadDir implements Path::ReadDir.

func (*SwiftPath) ReadFile 

func (p *SwiftPath) ReadFile() ([]byte, error)

ReadFile implements Path::ReadFile

func (*SwiftPath) ReadTree 

func (p *SwiftPath) ReadTree() ([]Path, error)

ReadTree implements Path::ReadTree.

func (*SwiftPath) Remove 

func (p *SwiftPath) Remove() error

func (*SwiftPath) String 

func (p *SwiftPath) String() string

func (*SwiftPath) WriteFile 

func (p *SwiftPath) WriteFile(data io.ReadSeeker, acl ACL) error

func (*SwiftPath) WriteTo 

func (p *SwiftPath) WriteTo(out io.Writer) (int64, error)

WriteTo implements io.WriterTo

type VFS 

type VFS interface {
}

type VFSContext 

type VFSContext struct {
	// contains filtered or unexported fields
}

VFSContext is a 'context' for VFS, that is normally a singleton but allows us to configure S3 credentials, for example

func (*VFSContext) BuildVfsPath 

func (c *VFSContext) BuildVfsPath(p string) (Path, error)

func (*VFSContext) ReadFile 

func (c *VFSContext) ReadFile(location string, options ...VFSOption) ([]byte, error)

ReadLocation reads a file from a vfs URL It supports additional schemes which don't (yet) have full VFS implementations: 

metadata: reads from instance metadata on GCE/AWS
http / https: reads from HTTP

func (*VFSContext) ResetMemfsContext 

func (c *VFSContext) ResetMemfsContext(clusterReadable bool)

type VFSOption 

type VFSOption func(options *vfsOptions)

func WithBackoff 

func WithBackoff(backoff wait.Backoff) VFSOption

WithBackoff specifies a custom VFS backoff policy

type VFSScan 

type VFSScan struct {
	Base Path
	// contains filtered or unexported fields
}

VFSScan scans a source Path for changed files

func NewVFSScan 

func NewVFSScan(base Path) *VFSScan

func (*VFSScan) Scan 

func (v *VFSScan) Scan() ([]Change, error)

Scans for changes files. On the first call will return all files as ChangeType_Added. On subsequent calls will return any changed files (using their hashes)

type WriteOption 

type WriteOption string
const (
	WriteOptionCreate       WriteOption = "Create"
	WriteOptionOnlyIfExists WriteOption = "IfExists"
)

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