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https://github.com/martinvonz/jj.git
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48fa821e60
Summary: In preparation for unifying all workspace dependencies across all crates, let's go ahead and move the jj-cli crate into its own new directory. This will also be a nicer and more uniform layout as we add new `jj-*` crates. Signed-off-by: Austin Seipp <aseipp@pobox.com> Change-Id: Icf94e7ae5f290dc8e181215727b38ada
80 lines
3 KiB
Rust
80 lines
3 KiB
Rust
// Copyright 2022 The Jujutsu Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::path::PathBuf;
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use std::process::exit;
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use std::{env, fs};
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use clap::Parser;
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use itertools::Itertools;
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/// A fake editor, useful for testing
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// It's overkill to use clap for a single argument, but we already use it in many other places...
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#[derive(Parser, Debug)]
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#[clap()]
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struct Args {
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/// Path to the file to edit
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file: PathBuf,
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}
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fn main() {
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let args: Args = Args::parse();
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let edit_script_path = PathBuf::from(env::var_os("EDIT_SCRIPT").unwrap());
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let edit_script = fs::read_to_string(&edit_script_path).unwrap();
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let mut instructions = edit_script.split('\0').collect_vec();
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if let Some(pos) = instructions.iter().position(|&i| i == "next invocation\n") {
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// Overwrite the edit script. The next time `fake-editor` is called, it will
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// only see the part after the `next invocation` command.
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fs::write(&edit_script_path, instructions[pos + 1..].join("\0")).unwrap();
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instructions.truncate(pos);
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}
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for instruction in instructions {
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let (command, payload) = instruction.split_once('\n').unwrap_or((instruction, ""));
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let parts = command.split(' ').collect_vec();
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match parts.as_slice() {
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[""] => {}
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["fail"] => exit(1),
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["dump", dest] => {
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let dest_path = edit_script_path.parent().unwrap().join(dest);
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fs::copy(&args.file, dest_path).unwrap();
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}
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["expect"] => {
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let actual = String::from_utf8(fs::read(&args.file).unwrap()).unwrap();
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if actual != payload {
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eprintln!("fake-editor: Unexpected content.\n");
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eprintln!("EXPECTED: <{payload}>\nRECEIVED: <{actual}>");
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exit(1)
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}
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}
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["expectpath"] => {
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let actual = args.file.to_str().unwrap();
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if actual != payload {
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eprintln!("fake-editor: Unexpected path.\n");
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eprintln!("EXPECTED: <{payload}>\nRECEIVED: <{actual}>");
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exit(1)
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}
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}
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["write"] => {
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fs::write(&args.file, payload).unwrap_or_else(|_| {
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panic!("Failed to write file {}", args.file.to_str().unwrap())
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});
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}
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_ => {
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eprintln!("fake-editor: unexpected command: {command}");
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exit(1)
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}
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}
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}
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}
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