Struct globwalk::GlobWalkerBuilder

pub struct GlobWalkerBuilder { /* private fields */ }

An iterator for recursively yielding glob matches.

The order of elements yielded by this iterator is unspecified.

Implementations

impl GlobWalkerBuilder

pub fn new<P, S>(base: P, pattern: S) -> Self

where P: AsRef<Path>, S: AsRef<str>,

Construct a new GlobWalker with a glob pattern.

When iterated, the base directory will be recursively searched for paths matching pattern.

pub fn from_patterns<P, S>(base: P, patterns: &[S]) -> Self

where P: AsRef<Path>, S: AsRef<str>,

Construct a new GlobWalker from a list of patterns.

When iterated, the base directory will be recursively searched for paths matching patterns.

pub fn min_depth(self, depth: usize) -> Self

Set the minimum depth of entries yielded by the iterator.

The smallest depth is 0 and always corresponds to the path given to the new function on this type. Its direct descendents have depth 1, and their descendents have depth 2, and so on.

pub fn max_depth(self, depth: usize) -> Self

Set the maximum depth of entries yield by the iterator.

The smallest depth is 0 and always corresponds to the path given to the new function on this type. Its direct descendents have depth 1, and their descendents have depth 2, and so on.

Note that this will not simply filter the entries of the iterator, but it will actually avoid descending into directories when the depth is exceeded.

pub fn follow_links(self, yes: bool) -> Self

Follow symbolic links. By default, this is disabled.

When yes is true, symbolic links are followed as if they were normal directories and files. If a symbolic link is broken or is involved in a loop, an error is yielded.

When enabled, the yielded DirEntry values represent the target of the link while the path corresponds to the link. See the DirEntry type for more details.

pub fn max_open(self, n: usize) -> Self

Set the maximum number of simultaneously open file descriptors used by the iterator.

n must be greater than or equal to 1. If n is 0, then it is set to 1 automatically. If this is not set, then it defaults to some reasonably low number.

This setting has no impact on the results yielded by the iterator (even when n is 1). Instead, this setting represents a trade off between scarce resources (file descriptors) and memory. Namely, when the maximum number of file descriptors is reached and a new directory needs to be opened to continue iteration, then a previous directory handle is closed and has its unyielded entries stored in memory. In practice, this is a satisfying trade off because it scales with respect to the depth of your file tree. Therefore, low values (even 1) are acceptable.

Note that this value does not impact the number of system calls made by an exhausted iterator.

Platform behavior

On Windows, if follow_links is enabled, then this limit is not respected. In particular, the maximum number of file descriptors opened is proportional to the depth of the directory tree traversed.

pub fn sort_by<F>(self, cmp: F) -> Self

where F: FnMut(&DirEntry, &DirEntry) -> Ordering + Send + Sync + 'static,

Set a function for sorting directory entries.

If a compare function is set, the resulting iterator will return all paths in sorted order. The compare function will be called to compare entries from the same directory.

pub fn contents_first(self, yes: bool) -> Self

Yield a directory’s contents before the directory itself. By default, this is disabled.

When yes is false (as is the default), the directory is yielded before its contents are read. This is useful when, e.g. you want to skip processing of some directories.

When yes is true, the iterator yields the contents of a directory before yielding the directory itself. This is useful when, e.g. you want to recursively delete a directory.

pub fn case_insensitive(self, yes: bool) -> Self

Toggle whether the globs should be matched case insensitively or not.

This is disabled by default.

pub fn file_type(self, file_type: FileType) -> Self

Toggle filtering by file type. FileType can be an OR of several types.

Note that not all file-types can be whitelisted by this filter (e.g. char-devices, fifos, etc.)

pub fn build(self) -> Result<GlobWalker, GlobError>

Finalize and build a GlobWalker instance.