utiles 0.8.0

Web map tile utils (aka utiles)
Documentation 
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use crate::UtilesResult;
use crate::cli::args::CommandsArgs;
use serde::Serialize;
#[derive(Debug, Serialize)]
struct CommandInfo {
    name: String,
    #[serde(skip)]
    parent: Option<String>,
    path: String,
    about: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    aliases: Option<Vec<String>>,
    hidden: bool,
}

impl CommandInfo {
    fn new(
        name: String,
        parent: Option<String>,
        about: Option<String>,
        aliases: Option<Vec<String>>,
        hidden: bool,
    ) -> Self {
        let path = match &parent {
            Some(path) => format!("{path}::{name}"), // name is a String
            None => name.clone(),
        };
        Self {
            name,
            parent,
            path,
            about,
            aliases,
            hidden,
        }
    }
}

impl CommandInfo {
    pub(crate) fn fmt_name_and_aliases(&self) -> String {
        let parent_and_name = match &self.parent {
            Some(path) => format!("{}::{}", path, self.name), // name is a String
            None => self.name.clone(),
        };
        if let Some(aliases) = &self.aliases {
            format!("{} [{}]", parent_and_name, aliases.join(", "))
        } else {
            parent_and_name
        }
    }
}
fn cmd_info_recursive<'a>(
    cmd: &'a clap::Command,
    parent: Option<&'a str>,
    cmd_info: &mut Vec<CommandInfo>,
) {
    let desc = cmd.get_about();
    let aliases: Vec<String> =
        cmd.get_visible_aliases().map(|s| s.to_string()).collect();
    let cur_cmd_info = CommandInfo::new(
        cmd.get_name().to_string(),
        parent.map(|s| s.to_string()),
        desc.map(|s| s.to_string()),
        if aliases.is_empty() {
            None
        } else {
            Some(aliases)
        },
        cmd.is_hide_set(),
    );
    for sub in cmd.get_subcommands() {
        cmd_info_recursive(sub, Some(&cur_cmd_info.name), cmd_info);
    }
    cmd_info.push(cur_cmd_info);
}
fn list_commands(cmd: &clap::Command) -> Vec<CommandInfo> {
    let mut cmd_infos = Vec::new();
    for sub in cmd.get_subcommands() {
        cmd_info_recursive(sub, None, &mut cmd_infos);
    }
    cmd_infos.sort_by(|a, b| a.path.to_lowercase().cmp(&b.path.to_lowercase()));
    cmd_infos
}

pub(crate) fn commands_main(
    cli: &clap::Command,
    args: &CommandsArgs,
) -> UtilesResult<()> {
    let cmds_arr = list_commands(cli);
    let out_str = if args.table {
        cmds_arr
            .iter()
            .map(|cmd| cmd.fmt_name_and_aliases())
            .collect::<Vec<String>>()
            .join("\n")
    } else {
        serde_json::to_string_pretty(&cmds_arr).expect("json serialization error")
    };
    println!("{out_str}");
    Ok(())
}