just playing with tangled
1// Copyright 2022 The Jujutsu Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// https://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use std::io::Write as _;
16
17use jj_cli::cli_util::CliRunner;
18use jj_cli::cli_util::CommandHelper;
19use jj_cli::cli_util::RevisionArg;
20use jj_cli::command_error::CommandError;
21use jj_cli::ui::Ui;
22
23#[derive(clap::Parser, Clone, Debug)]
24enum CustomCommand {
25 Frobnicate(FrobnicateArgs),
26}
27
28/// Frobnicate a revisions
29#[derive(clap::Args, Clone, Debug)]
30struct FrobnicateArgs {
31 /// The revision to frobnicate
32 #[arg(default_value = "@")]
33 revision: RevisionArg,
34}
35
36fn run_custom_command(
37 ui: &mut Ui,
38 command_helper: &CommandHelper,
39 command: CustomCommand,
40) -> Result<(), CommandError> {
41 match command {
42 CustomCommand::Frobnicate(args) => {
43 let mut workspace_command = command_helper.workspace_helper(ui)?;
44 let commit = workspace_command.resolve_single_rev(ui, &args.revision)?;
45 let mut tx = workspace_command.start_transaction();
46 let new_commit = tx
47 .repo_mut()
48 .rewrite_commit(&commit)
49 .set_description("Frobnicated!")
50 .write()?;
51 tx.finish(ui, "frobnicate")?;
52 writeln!(
53 ui.status(),
54 "Frobnicated revision: {}",
55 workspace_command.format_commit_summary(&new_commit)
56 )?;
57 Ok(())
58 }
59 }
60}
61
62fn main() -> std::process::ExitCode {
63 CliRunner::init().add_subcommand(run_custom_command).run()
64}