Struct Env

pub struct Env { /* private fields */ }

Set environment variables and run command.

When no command is supplied, print the current environment variables.

Implementations

impl Env

pub fn setup(&self)

Setup environment

pub fn parse_arguments(&self) -> Result<usize, Box<dyn Error>>

pub fn run_command( &self, offset: usize, ) -> Result<Option<ExitStatus>, Box<dyn Error>>

pub fn run(&self) -> Result<Option<ExitStatus>, Box<dyn Error>>

pub fn show(&self) -> Result<(), Box<dyn Error>>

pub fn show_json(&self) -> Result<(), Box<dyn Error>>

pub fn show_normal(&self, separator: &OsStr) -> Result<(), Box<dyn Error>>

Trait Implementations

impl Args for Env

fn augment_args<'b>(__clap_app: Command<'b>) -> Command<'b>

Append to Command so it can instantiate Self.

fn augment_args_for_update<'b>(__clap_app: Command<'b>) -> Command<'b>

Append to Command so it can update self.

impl Clone for Env

fn clone(&self) -> Env

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CommandFactory for Env

fn into_app<'b>() -> Command<'b>

Deprecated, replaced with CommandFactory::command

fn into_app_for_update<'b>() -> Command<'b>

Deprecated, replaced with CommandFactory::command_for_update

fn command<'help>() -> App<'help>

Build a Command that can instantiate Self.

fn command_for_update<'help>() -> App<'help>

Build a Command that can update self.

impl Debug for Env

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

Formats the value using the given formatter.

impl FromArgMatches for Env

fn from_arg_matches(__clap_arg_matches: &ArgMatches) -> Result<Self, Error>

Instantiate Self from ArgMatches, parsing the arguments as needed.

fn from_arg_matches_mut( __clap_arg_matches: &mut ArgMatches, ) -> Result<Self, Error>

Instantiate Self from ArgMatches, parsing the arguments as needed.

fn update_from_arg_matches( &mut self, __clap_arg_matches: &ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

fn update_from_arg_matches_mut( &mut self, __clap_arg_matches: &mut ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

impl Parser for Env

fn parse() -> Self

Parse from std::env::args_os(), exit on error

fn try_parse() -> Result<Self, Error>

Parse from std::env::args_os(), return Err on error.

fn parse_from<I, T>(itr: I) -> Self

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Parse from iterator, exit on error

fn try_parse_from<I, T>(itr: I) -> Result<Self, Error>

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Parse from iterator, return Err on error.

fn update_from<I, T>(&mut self, itr: I)

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Update from iterator, exit on error

fn try_update_from<I, T>(&mut self, itr: I) -> Result<(), Error>

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Update from iterator, return Err on error.

impl Runnable for Env

fn run(&self) -> Result<(), Box<dyn Error>>

Run something, can either succeed or fail.

fn main(&self) -> ExitCode

Run somethin, returning an ExitCode to return to the OS.