jj/cli/src/commands/untrack.rs
Matt Kulukundis 8aa71f58f3 feat: add an option to monitor the filesystem asynchronously
- make an internal set of watchman extensions until the client api gets
  updates with triggers
- add a config option to enable using triggers in watchman

Co-authored-by: Waleed Khan <me@waleedkhan.name>
2024-06-16 23:24:22 -04:00

110 lines
4.2 KiB
Rust

// Copyright 2020 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 std::io::Write;
use itertools::Itertools;
use jj_lib::merge::Merge;
use jj_lib::merged_tree::MergedTreeBuilder;
use jj_lib::repo::Repo;
use jj_lib::working_copy::SnapshotOptions;
use tracing::instrument;
use crate::cli_util::CommandHelper;
use crate::command_error::{user_error_with_hint, CommandError};
use crate::ui::Ui;
/// Stop tracking specified paths in the working copy
#[derive(clap::Args, Clone, Debug)]
pub(crate) struct UntrackArgs {
/// Paths to untrack. They must already be ignored.
///
/// The paths could be ignored via a .gitignore or .git/info/exclude (in
/// colocated repos).
#[arg(required = true, value_hint = clap::ValueHint::AnyPath)]
paths: Vec<String>,
}
#[instrument(skip_all)]
pub(crate) fn cmd_untrack(
ui: &mut Ui,
command: &CommandHelper,
args: &UntrackArgs,
) -> Result<(), CommandError> {
let mut workspace_command = command.workspace_helper(ui)?;
let store = workspace_command.repo().store().clone();
let matcher = workspace_command
.parse_file_patterns(&args.paths)?
.to_matcher();
let mut tx = workspace_command.start_transaction().into_inner();
let base_ignores = workspace_command.base_ignores()?;
let (mut locked_ws, wc_commit) = workspace_command.start_working_copy_mutation()?;
// Create a new tree without the unwanted files
let mut tree_builder = MergedTreeBuilder::new(wc_commit.tree_id().clone());
let wc_tree = wc_commit.tree()?;
for (path, _value) in wc_tree.entries_matching(matcher.as_ref()) {
tree_builder.set_or_remove(path, Merge::absent());
}
let new_tree_id = tree_builder.write_tree(&store)?;
let new_commit = tx
.mut_repo()
.rewrite_commit(command.settings(), &wc_commit)
.set_tree_id(new_tree_id)
.write()?;
// Reset the working copy to the new commit
locked_ws.locked_wc().reset(&new_commit)?;
// Commit the working copy again so we can inform the user if paths couldn't be
// untracked because they're not ignored.
let wc_tree_id = locked_ws.locked_wc().snapshot(SnapshotOptions {
base_ignores,
fsmonitor_settings: command.settings().fsmonitor_settings()?,
progress: None,
max_new_file_size: command.settings().max_new_file_size()?,
})?;
if wc_tree_id != *new_commit.tree_id() {
let wc_tree = store.get_root_tree(&wc_tree_id)?;
let added_back = wc_tree.entries_matching(matcher.as_ref()).collect_vec();
if !added_back.is_empty() {
drop(locked_ws);
let path = &added_back[0].0;
let ui_path = workspace_command.format_file_path(path);
let message = if added_back.len() > 1 {
format!(
"'{}' and {} other files are not ignored.",
ui_path,
added_back.len() - 1
)
} else {
format!("'{ui_path}' is not ignored.")
};
return Err(user_error_with_hint(
message,
"Files that are not ignored will be added back by the next command.
Make sure they're ignored, then try again.",
));
} else {
// This means there were some concurrent changes made in the working copy. We
// don't want to mix those in, so reset the working copy again.
locked_ws.locked_wc().reset(&new_commit)?;
}
}
let num_rebased = tx.mut_repo().rebase_descendants(command.settings())?;
if num_rebased > 0 {
writeln!(ui.status(), "Rebased {num_rebased} descendant commits")?;
}
let repo = tx.commit("untrack paths");
locked_ws.finish(repo.op_id().clone())?;
Ok(())
}