Skip to main content

Class: File

A file.

Extends​

  • BaseClient

Constructors​

Constructor​

new File(ctx?, _id?, _contents?, _digest?, _export?, _name?, _size?, _sync?): File

Constructor is used for internal usage only, do not create object from it.

Parameters​

ctx?​

Context

_id?​

FileID

_contents?​

string

_digest?​

string

_export?​

string

_name?​

string

_size?​

number

_sync?​

FileID

Returns​

File

Overrides​

BaseClient.constructor

Methods​

asEnvFile()​

asEnvFile(opts?): EnvFile

Parse as an env file

Parameters​

opts?​

FileAsEnvFileOpts

Returns​

EnvFile

chown()​

chown(owner): File

Change the owner of the file recursively.

Parameters​

owner​

string

A user:group to set for the file.

The user and group must be an ID (1000:1000), not a name (foo:bar).

If the group is omitted, it defaults to the same as the user.

Returns​

File

contents()​

contents(opts?): Promise<string>

Retrieves the contents of the file.

Parameters​

opts?​

FileContentsOpts

Returns​

Promise<string>

digest()​

digest(opts?): Promise<string>

Return the file's digest. The format of the digest is not guaranteed to be stable between releases of Dagger. It is guaranteed to be stable between invocations of the same Dagger engine.

Parameters​

opts?​

FileDigestOpts

Returns​

Promise<string>

export()​

export(path, opts?): Promise<string>

Writes the file to a file path on the host.

Parameters​

path​

string

Location of the written directory (e.g., "output.txt").

opts?​

FileExportOpts

Returns​

Promise<string>

id()​

id(): Promise<FileID>

A unique identifier for this File.

Returns​

Promise<FileID>

name()​

name(): Promise<string>

Retrieves the name of the file.

Returns​

Promise<string>

search(pattern, opts?): Promise<SearchResult[]>

Searches for content matching the given regular expression or literal string.

Uses Rust regex syntax; escape literal ., [, ], {, }, | with backslashes.

Parameters​

pattern​

string

The text to match.

opts?​

FileSearchOpts

Returns​

Promise<SearchResult[]>

size()​

size(): Promise<number>

Retrieves the size of the file, in bytes.

Returns​

Promise<number>

sync()​

sync(): Promise<File>

Force evaluation in the engine.

Returns​

Promise<File>

with()​

with(arg): File

Call the provided function with current File.

This is useful for reusability and readability by not breaking the calling chain.

Parameters​

arg​

(param) => File

Returns​

File

withName()​

withName(name): File

Retrieves this file with its name set to the given name.

Parameters​

name​

string

Name to set file to.

Returns​

File

withReplaced()​

withReplaced(search, replacement, opts?): File

Retrieves the file with content replaced with the given text.

If 'all' is true, all occurrences of the pattern will be replaced.

If 'firstAfter' is specified, only the first match starting at the specified line will be replaced.

If neither are specified, and there are multiple matches for the pattern, this will error.

If there are no matches for the pattern, this will error.

Parameters​

search​

string

The text to match.

replacement​

string

The text to match.

opts?​

FileWithReplacedOpts

Returns​

File

withTimestamps()​

withTimestamps(timestamp): File

Retrieves this file with its created/modified timestamps set to the given time.

Parameters​

timestamp​

number

Timestamp to set dir/files in.

Formatted in seconds following Unix epoch (e.g., 1672531199).

Returns​

File