mapfs

func (*FS) CopyDir ¶ added in v0.63.0

func (m *FS) CopyDir(src, dst string) error

CopyDir copies a directory from the local filesystem into the in-memory filesystem. This function works similarly to the Unix command "cp -r src dst", recursively copying the entire directory structure from the source to the destination.

The function: 1. Walks through all files and subdirectories in the source directory 2. Recreates the directory structure in the in-memory filesystem 3. Copies all files while preserving their relative paths

Parameters:

• src: The source directory path in the local filesystem
• dst: The destination directory path in the in-memory filesystem

For example, if src is "/tmp/data" and dst is "app/", then: - A file at "/tmp/data/settings.json" will be copied to "app/data/settings.json" - A file at "/tmp/data/subdir/config.yaml" will be copied to "app/data/subdir/config.yaml"

func (*FS) CopyFilesUnder ¶

func (m *FS) CopyFilesUnder(dir string) error

TODO(knqyf263): Remove this method and replace with CopyDir

func (*FS) Filter ¶

func (m *FS) Filter(skippedFiles []string) (*FS, error)

Filter removes the specified skippedFiles and returns a new FS

func (*FS) FilterFunc ¶ added in v0.41.0

func (m *FS) FilterFunc(fn func(path string, d fs.DirEntry) (bool, error)) (*FS, error)

func (*FS) Glob ¶

func (m *FS) Glob(pattern string) ([]string, error)

Glob returns the names of all files matching pattern or nil if there is no matching file. The syntax of patterns is the same as in Match. The pattern may describe hierarchical names such as /usr/*/bin/ed (assuming the Separator is '/').

Glob ignores file system errors such as I/O errors reading directories. The only possible returned error is ErrBadPattern, when pattern is malformed.

func (*FS) MkdirAll ¶

func (m *FS) MkdirAll(path string, perm fs.FileMode) error

MkdirAll creates a directory named path, along with any necessary parents, and returns nil, or else returns an error. The permission bits perm (before umask) are used for all directories that MkdirAll creates. If path is already a directory, MkdirAll does nothing and returns nil.

func (*FS) Open ¶

func (m *FS) Open(name string) (fs.File, error)

Open opens the named file for reading.

func (*FS) ReadDir ¶

func (m *FS) ReadDir(name string) ([]fs.DirEntry, error)

ReadDir reads the named directory and returns a list of directory entries sorted by filename.

func (*FS) ReadFile ¶

func (m *FS) ReadFile(name string) ([]byte, error)

ReadFile reads the named file and returns its contents. A successful call returns a nil error, not io.EOF. (Because ReadFile reads the whole file, the expected EOF from the final Read is not treated as an error to be reported.)

The caller is permitted to modify the returned byte slice. This method should return a copy of the underlying data.

func (*FS) Remove ¶

func (m *FS) Remove(path string) error

Remove deletes a file or directory from the filesystem

func (*FS) RemoveAll ¶

func (m *FS) RemoveAll(path string) error

RemoveAll deletes a file or directory and any children if present from the filesystem

func (*FS) Stat ¶

func (m *FS) Stat(name string) (fs.FileInfo, error)

Stat returns a FileInfo describing the file.

func (*FS) Sub ¶

func (m *FS) Sub(dir string) (fs.FS, error)

Sub returns an FS corresponding to the subtree rooted at dir.

func (*FS) WriteFile ¶

func (m *FS) WriteFile(path, underlyingPath string) error

WriteFile creates a mapping between path and underlyingPath.

func (*FS) WriteVirtualFile ¶

func (m *FS) WriteVirtualFile(path string, data []byte, mode fs.FileMode) error

WriteVirtualFile writes the specified bytes to the named file. If the file exists, it will be overwritten.