jj-cli 0.14.0

Jujutsu - an experimental version control system
Documentation
// Copyright 2020-2024 The Jujutsu Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use jj_lib::str_util::StringPattern;

use crate::cli_util::{parse_string_pattern, CommandError, CommandHelper};
use crate::ui::Ui;

/// Manage tags.
#[derive(clap::Subcommand, Clone, Debug)]
pub enum TagCommand {
    #[command(visible_alias("l"))]
    List(TagListArgs),
}

/// List tags.
#[derive(clap::Args, Clone, Debug)]
pub struct TagListArgs {
    /// Show tags whose local name matches
    ///
    /// By default, the specified name matches exactly. Use `glob:` prefix to
    /// select tags by wildcard pattern. For details, see
    /// https://github.com/martinvonz/jj/blob/main/docs/revsets.md#string-patterns.
    #[arg(value_parser = parse_string_pattern)]
    pub names: Vec<StringPattern>,
}

pub fn cmd_tag(
    ui: &mut Ui,
    command: &CommandHelper,
    subcommand: &TagCommand,
) -> Result<(), CommandError> {
    match subcommand {
        TagCommand::List(sub_args) => cmd_tag_list(ui, command, sub_args),
    }
}

fn cmd_tag_list(
    ui: &mut Ui,
    command: &CommandHelper,
    args: &TagListArgs,
) -> Result<(), CommandError> {
    let workspace_command = command.workspace_helper(ui)?;
    let repo = workspace_command.repo();
    let view = repo.view();

    ui.request_pager();
    let mut formatter = ui.stdout_formatter();
    let formatter = formatter.as_mut();

    for name in view.tags().keys() {
        if !args.names.is_empty() && !args.names.iter().any(|pattern| pattern.matches(name)) {
            continue;
        }

        writeln!(formatter.labeled("tag"), "{name}")?;
    }

    Ok(())
}