knave 0.12.13

A Lisp programming language for humans and agents that infers types and ownership and compiles to readable Rust
Documentation 
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use super::crate_section::CrateSection;
use super::exit_status::ExitStatus;
use super::project_file_edit::ProjectFileEdit;
use super::standard_error::StandardError;
use super::terminal::Terminal;

pub struct RemoveCommand {
    name: String,
    section: CrateSection,
}

impl RemoveCommand {
    const COMMAND: &str = "remove";

    pub fn new(name: String, section: CrateSection) -> Self {
        Self { name, section }
    }

    pub fn run(self, terminal: &mut Terminal) -> ExitStatus {
        match self.remove(terminal) {
            Ok(()) => ExitStatus::Success,
            Err(status) => status,
        }
    }

    fn remove(&self, terminal: &Terminal) -> Result<(), ExitStatus> {
        let edit = ProjectFileEdit::of_working_directory(terminal, Self::COMMAND)?;
        let removed = edit.apply(terminal, |editor| {
            editor.without_crate(self.section.section(), &self.name)
        })?;
        if removed {
            return Ok(());
        }
        StandardError::write_line(format_args!(
            "error: the project's `{}` do not list `{}`{}",
            self.section.name(),
            self.name,
            self.other_section_help(&edit)
        ));
        Err(ExitStatus::UsageError)
    }

    fn other_section_help(&self, edit: &ProjectFileEdit) -> String {
        let other = self.section.other();
        match edit.listed_crate(other, &self.name) {
            Some(_) => format!(
                "\nhelp: `{}` lists it: run `{} {}`",
                other.name(),
                other.command(Self::COMMAND),
                self.name
            ),
            None => String::new(),
        }
    }
}