feat(cli): add jj-lib version to version output

Allows to set the revision message of multiple revisions by passing
them as arguments. This only supports simple revisions, such as `@`,
`@-`, `xs`, and so on. Comple revisions such as `@..@-` are not
supported.

Fixes: #5

Cargo.lock

@@ -2304,9 +2304,9 @@ checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
 [[package]]
 name = "rand"
-version = "0.10.1"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2e8e8bcc7961af1fdac401278c6a831614941f6164ee3bf4ce61b7edb162207"
+checksum = "bc266eb313df6c5c09c1c7b1fbe2510961e5bcd3add930c1e31f7ed9da0feff8"
 dependencies = [
  "chacha20",
  "getrandom",

README.md

@@ -24,16 +24,6 @@ jj-cz
 The tool detects whether you're in a Jujutsu repository, guides you
 through the commit message, and applies it to your current change.
 
-You can also set the revision message of a few revisions at once, or
-target a single revision other than the current one.
-
-```sh
-jj-cz @- xs develop
-```
-
-No explicit revision is simply the equivalent of `jj-cz @`, like
-`jj desc`.
-
 ## Requirements
 
 - A Jujutsu repository
@@ -51,44 +41,8 @@ what `jj-cz` alone would be good for without `jj`.
 | 130  | Interrupted                                          |
 
 ## Installation
-### From crates.io
-Simply run the following command:
 
-```
+You can install jj-cz with Cargo by building it from source.
-cargo install jj-cz
-```
-
-Done! `jj-cz` is now available!
-
-### With Nix Flakes
-Notice how there’s a `flake.nix` file? This means you can run the
-project using this repository as one of your flakes inputs. In fact,
-that’s how I install it in my own NixOS configuration! Add this
-repository to your configuration:
-
-```nix
-{
-  inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
-
-    jj-cz = {
-      url = "git+https://labs.phundrak.com/phundrak/jj-cz";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-  };
-}
-```
-
-And tadah! you can now install
-`inputs.jj-cz.packages.${pkgs.stdenv.hostPlatform.system}.default`
-among your other packages. Take a look at my
-[`jujutsu.nix`](https://labs.phundrak.com/phundrak/nix-config/src/branch/main/users/modules/dev/vcs/jujutsu.nix)
-module if you need some inspiration.
-
-### From source
-
-You can also install `jj-cz` with Cargo by building it from source.
-Just make sure Rust is available on your machine (duh!).
 
 ```sh
 cargo install --path .

build.rs

@@ -2,12 +2,7 @@ use cargo_lock::Lockfile;
 
 fn main() {
     let lockfile = Lockfile::load("Cargo.lock").expect("Cargo.lock not found");
-    let version = lockfile
+    let version = lockfile.packages.iter().find(|p| p.name.as_str() == "jj-lib").map(|p| p.version.to_string()).unwrap_or_else(|| "unknown".to_string());
-        .packages
-        .iter()
-        .find(|p| p.name.as_str() == "jj-lib")
-        .map(|p| p.version.to_string())
-        .unwrap_or_else(|| "unknown".to_string());
     println!("cargo:rustc-env=JJ_LIB_VERSION={version}");
     println!("cargo:rerun-if-changed=Cargo.lock");
 }

src/jj/lib_executor.rs

@@ -239,8 +239,7 @@ impl JjExecutor for JjLib {
                 context: format!("{e:?}"),
             })?;
 
-        let new_repo = tx
+        let new_repo = tx.commit("jj-cz: update commit description")
-            .commit("jj-cz: update commit description")
             .await
             .map_err(|e| Error::JjOperation {
                 context: e.to_string(),