mirror of
https://github.com/lune-org/docs.git
synced 2024-12-12 13:00:37 +00:00
279 lines
6 KiB
Markdown
279 lines
6 KiB
Markdown
# FS
|
|
|
|
Built-in library for filesystem access
|
|
|
|
#### Example usage
|
|
|
|
```lua
|
|
local fs = require("@lune/fs")
|
|
|
|
-- Reading a file
|
|
local myTextFile: string = fs.readFile("myFileName.txt")
|
|
|
|
-- Reading entries (files & dirs) in a directory
|
|
for _, entryName in fs.readDir("myDirName") do
|
|
if fs.isFile("myDirName/" .. entryName) then
|
|
print("Found file " .. entryName)
|
|
elseif fs.isDir("myDirName/" .. entryName) then
|
|
print("Found subdirectory " .. entryName)
|
|
end
|
|
end
|
|
```
|
|
|
|
## Functions
|
|
|
|
### readFile
|
|
|
|
Reads a file at `path`.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- `path` does not point to an existing file.
|
|
- The current process lacks permissions to read the file.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The path to the file to read
|
|
|
|
#### Returns
|
|
|
|
- The contents of the file
|
|
|
|
---
|
|
|
|
### readDir
|
|
|
|
Reads entries in a directory at `path`.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- `path` does not point to an existing directory.
|
|
- The current process lacks permissions to read the contents of the directory.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The directory path to search in
|
|
|
|
#### Returns
|
|
|
|
- A list of files & directories found
|
|
|
|
---
|
|
|
|
### writeFile
|
|
|
|
Writes to a file at `path`.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- The file's parent directory does not exist.
|
|
- The current process lacks permissions to write to the file.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The path of the file
|
|
|
|
- `contents` The contents of the file
|
|
|
|
---
|
|
|
|
### writeDir
|
|
|
|
Creates a directory and its parent directories if they are missing.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- `path` already points to an existing file or directory.
|
|
- The current process lacks permissions to create the directory or its missing parents.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The directory to create
|
|
|
|
---
|
|
|
|
### removeFile
|
|
|
|
Removes a file.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- `path` does not point to an existing file.
|
|
- The current process lacks permissions to remove the file.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The file to remove
|
|
|
|
---
|
|
|
|
### removeDir
|
|
|
|
Removes a directory and all of its contents.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- `path` is not an existing and empty directory.
|
|
- The current process lacks permissions to remove the directory.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The directory to remove
|
|
|
|
---
|
|
|
|
### metadata
|
|
|
|
Gets metadata for the given path.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- The current process lacks permissions to read at `path`.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The path to get metadata for
|
|
|
|
#### Returns
|
|
|
|
- Metadata for the path
|
|
|
|
---
|
|
|
|
### isFile
|
|
|
|
Checks if a given path is a file.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- The current process lacks permissions to read at `path`.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The file path to check
|
|
|
|
#### Returns
|
|
|
|
- If the path is a file or not
|
|
|
|
---
|
|
|
|
### isDir
|
|
|
|
Checks if a given path is a directory.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- The current process lacks permissions to read at `path`.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `path` The directory path to check
|
|
|
|
#### Returns
|
|
|
|
- If the path is a directory or not
|
|
|
|
---
|
|
|
|
### move
|
|
|
|
Moves a file or directory to a new path.
|
|
|
|
Throws an error if a file or directory already exists at the target path. This can be bypassed by
|
|
passing `true` as the third argument, or a dictionary of options. Refer to the documentation for
|
|
`WriteOptions` for specific option keys and their values.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- The current process lacks permissions to read at `from` or write at `to`.
|
|
- The new path exists on a different mount point.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `from` The path to move from
|
|
|
|
- `to` The path to move to
|
|
|
|
- `overwriteOrOptions` Options for the target path, such as if should be overwritten if it already
|
|
exists
|
|
|
|
---
|
|
|
|
### copy
|
|
|
|
Copies a file or directory recursively to a new path.
|
|
|
|
Throws an error if a file or directory already exists at the target path. This can be bypassed by
|
|
passing `true` as the third argument, or a dictionary of options. Refer to the documentation for
|
|
`WriteOptions` for specific option keys and their values.
|
|
|
|
An error will be thrown in the following situations:
|
|
|
|
- The current process lacks permissions to read at `from` or write at `to`.
|
|
- Some other I/O error occurred.
|
|
|
|
#### Parameters
|
|
|
|
- `from` The path to copy from
|
|
|
|
- `to` The path to copy to
|
|
|
|
- `overwriteOrOptions` Options for the target path, such as if should be overwritten if it already
|
|
exists
|
|
|
|
---
|
|
|
|
## Types
|
|
|
|
### MetadataPermissions
|
|
|
|
Permissions for the given file or directory.
|
|
|
|
This is a dictionary that will contain the following values:
|
|
|
|
- `readOnly` - If the target path is read-only or not
|
|
|
|
---
|
|
|
|
### Metadata
|
|
|
|
Metadata for the given file or directory.
|
|
|
|
This is a dictionary that will contain the following values:
|
|
|
|
- `kind` - If the target path is a `file`, `dir` or `symlink`
|
|
- `exists` - If the target path exists
|
|
- `createdAt` - The timestamp represented as a `DateTime` object at which the file or directory
|
|
was created
|
|
- `modifiedAt` - The timestamp represented as a `DateTime` object at which the file or directory
|
|
was last modified
|
|
- `accessedAt` - The timestamp represented as a `DateTime` object at which the file or directory
|
|
was last accessed
|
|
- `permissions` - Current permissions for the file or directory
|
|
|
|
Note that timestamps are relative to the unix epoch, and may not be accurate if the system clock is
|
|
not accurate.
|
|
|
|
---
|
|
|
|
### WriteOptions
|
|
|
|
Options for filesystem APIs what write to files and/or directories.
|
|
|
|
This is a dictionary that may contain one or more of the following values:
|
|
|
|
- `overwrite` - If the target path should be overwritten or not, in the case that it already
|
|
exists
|
|
|
|
---
|