jj/examples/custom-command/main.rs
Yuya Nishihara 3d5eb970da cli: wrap transaction started by WorkspaceCommandHelper, borrow helper mutably
This ensures that helper methods that depend on repo aren't used by mistake
while transaction is in progress. Still it provides an escape hatch to invoke
e.g. select_diff() with the base repo, but such invocations are more explicit.

Some MutableRepo methods are proxied through the wrapper to get around
borrowing errors.
2023-01-25 13:31:41 +09:00

59 lines
1.9 KiB
Rust

// Copyright 2022 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 jujutsu::cli_util::{CliRunner, CommandError, CommandHelper};
use jujutsu::ui::Ui;
#[derive(clap::Parser, Clone, Debug)]
enum CustomCommands {
Frobnicate(FrobnicateArgs),
}
/// Frobnicate a revisions
#[derive(clap::Args, Clone, Debug)]
struct FrobnicateArgs {
/// The revision to frobnicate
#[arg(default_value = "@")]
revision: String,
}
fn run_custom_command(
ui: &mut Ui,
command_helper: &CommandHelper,
command: CustomCommands,
) -> Result<(), CommandError> {
match command {
CustomCommands::Frobnicate(args) => {
let mut workspace_command = command_helper.workspace_helper(ui)?;
let commit = workspace_command.resolve_single_rev(&args.revision)?;
let mut tx = workspace_command.start_transaction("Frobnicate");
let new_commit = tx
.mut_repo()
.rewrite_commit(command_helper.settings(), &commit)
.set_description("Frobnicated!")
.write()?;
tx.finish(ui)?;
writeln!(
ui,
"Frobnicated revision: {}",
workspace_command.format_commit_summary(&new_commit)
)?;
Ok(())
}
}
}
fn main() -> std::process::ExitCode {
CliRunner::init().add_subcommand(run_custom_command).run()
}