laterite-cli 0.9.13

The Laterite command-line tool (lat): admin bootstrap and operations
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//! `lat theme`: a theme out of the database as a zip, and back in.

use anyhow::{Context, Result};
use clap::{Args, Subcommand};
use laterite_core::Db;
use laterite_web::theme::archive;
use std::path::PathBuf;

#[derive(Subcommand)]
pub enum ThemeCommand {
    /// Write a theme and its templates to a zip.
    Export(ExportArgs),
    /// Create or update a theme from a zip.
    Import(ImportArgs),
    /// List the themes.
    List,
}

#[derive(Args)]
pub struct ExportArgs {
    /// The theme's code.
    pub code: String,
    /// Where to write the zip. Default: `<code>.zip` in the current directory.
    #[arg(long, short)]
    pub out: Option<PathBuf>,
}

#[derive(Args)]
pub struct ImportArgs {
    /// The theme's code: created from the archive's theme.yaml when it does
    /// not exist.
    pub code: String,
    /// The zip to read.
    pub file: PathBuf,
    /// Replace templates and the config the theme already has. Each replaced
    /// template keeps a revision.
    #[arg(long)]
    pub replace: bool,
}

pub async fn run(command: ThemeCommand, db: Db) -> Result<()> {
    match command {
        ThemeCommand::Export(args) => {
            let bytes = archive::export(&db, &args.code)
                .await
                .with_context(|| format!("could not export the theme {:?}", args.code))?;
            let out = args
                .out
                .unwrap_or_else(|| PathBuf::from(format!("{}.zip", args.code)));
            std::fs::write(&out, &bytes)
                .with_context(|| format!("could not write {}", out.display()))?;
            println!("Wrote {} ({} bytes)", out.display(), bytes.len());
        }
        ThemeCommand::Import(args) => {
            let bytes = std::fs::read(&args.file)
                .with_context(|| format!("could not read {}", args.file.display()))?;
            let report = archive::import(&db, &args.code, &bytes, args.replace, None)
                .await
                .with_context(|| format!("could not import into the theme {:?}", args.code))?;
            println!(
                "{} {}: {} template(s) written, {} skipped{}",
                if report.created { "Created" } else { "Updated" },
                args.code,
                report.imported,
                report.skipped,
                if report.ignored.is_empty() {
                    String::new()
                } else {
                    format!(", ignored {}", report.ignored.join(", "))
                }
            );
            if report.skipped > 0 && !args.replace {
                println!("Pass --replace to overwrite the templates the theme already has.");
            }
        }
        ThemeCommand::List => {
            let active = laterite_web::theme::active_theme(&db)
                .await?
                .map(|t| t.code);
            for theme in laterite_web::theme::store::list_themes(&db).await? {
                let mark = if active.as_deref() == Some(theme.code.as_str()) {
                    " (active)"
                } else {
                    ""
                };
                let parent = theme.parent.map(|p| format!(" < {p}")).unwrap_or_default();
                println!("{}{}: {}{}", theme.code, parent, theme.config.name, mark);
            }
        }
    }
    Ok(())
}