Struct NuShell 

pub struct NuShell;

A Shell implementation for the Bash shell.

Trait Implementations

impl Clone for NuShell

fn clone(&self) -> NuShell

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NuShell

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for NuShell

fn default() -> NuShell

Returns the “default value” for a type.

impl From<NuShell> for ShellEnum

fn from(v: NuShell) -> ShellEnum

Converts to this type from the input type.

impl Shell for NuShell

fn set_env_var( &self, f: &mut impl Write, env_var: &str, value: &str, ) -> Result<(), ShellError>

Set an env var by export-ing it.

fn unset_env_var( &self, f: &mut impl Write, env_var: &str, ) -> Result<(), ShellError>

Unset an env var by unset-ing it.

fn run_script(&self, f: &mut impl Write, path: &Path) -> Result<(), ShellError>

Run a script in the current shell.

fn set_path( &self, f: &mut impl Write, paths: &[PathBuf], modification_behavior: PathModificationBehavior, platform: &Platform, ) -> Result<(), ShellError>

Set the PATH variable to the given paths.

fn extension(&self) -> &str

The extension that shell scripts for this interpreter usually use.

fn executable(&self) -> &str

The executable that can be called to start this shell.

fn create_run_script_command(&self, path: &Path) -> Command

Constructs a Command that will execute the specified script by this shell.

fn completion_script_location(&self) -> Option<&'static Path>

Return the location where completion scripts are found in a Conda environment.

fn restore_env_var( &self, f: &mut impl Write, key: &str, backup_key: &str, ) -> Result<(), ShellError>

Restores an environment variable from its backup if it exists, otherwise unsets it.

fn force_utf8(&self, _f: &mut impl Write) -> Result<(), ShellError>

Write a command to the script that forces the usage of UTF8-encoding for the shell script.

fn source_completions( &self, _f: &mut impl Write, _completions_dir: &Path, ) -> Result<(), ShellError>

Source completion scripts for the shell from a given prefix path. Note: the completions_dir is the directory where the completions are stored. You can use Self::completion_script_location to get the correct location for a given shell type.

fn can_run_script(&self, path: &Path) -> bool

Test to see if the path can be executed by the shell, based on the extension of the path.

fn run_command<'a>( &self, f: &mut impl Write, command: impl IntoIterator<Item = &'a str> + 'a, ) -> Result

Executes a command in the current shell. Use Self::run_script when you want to run another shell script.

fn path_separator(&self, platform: &Platform) -> &str

Path separator

fn path_var(&self, platform: &Platform) -> &str

Returns the name of the PATH variable for the given platform. On Windows, path variables are case-insensitive but not all shells treat them case-insensitive.

fn format_env_var(&self, var_name: &str) -> String

Format the environment variable for the shell.

fn echo(&self, f: &mut impl Write, text: &str) -> Result

Emits echoing certain text to stdout.

fn print_env(&self, f: &mut impl Write) -> Result

Emits writing all current environment variables to stdout.

fn write_script(&self, f: &mut impl Write, script: &str) -> Result<()>

Write the script to the writer and do some post-processing for line-endings. Only really relevant for cmd.exe scripts.

fn parse_env<'i>(&self, env: &'i str) -> HashMap<&'i str, &'i str>

Parses environment variables emitted by the Shell::env command.

fn line_ending(&self) -> &str

Get the line ending for this shell. Only CmdExe uses \r\n.

impl TryInto<NuShell> for ShellEnum

type Error = &'static str

The type returned in the event of a conversion error.

fn try_into(self) -> Result<NuShell, <Self as TryInto<NuShell>>::Error>

Performs the conversion.

impl Copy for NuShell